# Copyright (c) 2011, 2012 Free Software Foundation
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see .
# This project incorporates work covered by the following copyright and permission notice:
# Copyright (c) 2009, Julien Fache
# All rights reserved.
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# * Neither the name of the author nor the names of other
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
# OF THE POSSIBILITY OF SUCH DAMAGE.
"""Storage models of gnowsys-studio, all types, relations """
import warnings
from datetime import datetime
from django.db import models
from django.db.models import Q
from django.utils.html import strip_tags
from django.utils.html import linebreaks
from django.contrib.auth.models import User
from django.contrib.sites.models import Site
from django.db.models.signals import post_save
from django.utils.importlib import import_module
from django.contrib import comments
from django.contrib.comments.models import CommentFlag
from django.contrib.comments.moderation import moderator
from django.utils.translation import ugettext_lazy as _
from django.contrib.markup.templatetags.markup import markdown
from django.contrib.markup.templatetags.markup import textile
from django.contrib.markup.templatetags.markup import restructuredtext
import mptt
from djangoratings.fields import RatingField
from tagging.fields import TagField
from gstudio.settings import UPLOAD_TO
from gstudio.settings import MARKUP_LANGUAGE
from gstudio.settings import NODETYPE_TEMPLATES
from gstudio.settings import NODETYPE_BASE_MODEL
from gstudio.settings import MARKDOWN_EXTENSIONS
from gstudio.settings import AUTO_CLOSE_COMMENTS_AFTER
from gstudio.settings import GSTUDIO_VERSIONING
from gstudio.managers import nodetypes_published
from gstudio.managers import NodetypePublishedManager
from gstudio.managers import NodePublishedManager
from gstudio.managers import AuthorPublishedManager
from gstudio.managers import DRAFT, HIDDEN, PUBLISHED
from gstudio.moderator import NodetypeCommentModerator
from gstudio.url_shortener import get_url_shortener
from gstudio.signals import ping_directories_handler
from gstudio.signals import ping_external_urls_handler
import json
if GSTUDIO_VERSIONING:
import reversion
from reversion.models import Version
from django.core import serializers
from reversion.models import *
from reversion.helpers import *
import ast
NODETYPE_CHOICES = (
('ND', 'Nodes'),
('OB' ,'Objects'),
('ED', 'Edges'),
('NT', 'Node types'),
('OT', 'Object types'),
('RT', 'Relation types'),
('MT', 'Metatypes'),
('AT', 'Attribute types'),
('RN', 'Relations'),
('AS', 'Attributes'),
('ST', 'System type'),
('SY', 'System'),
('NS', 'Node specification'),
('AS', 'Attribute specification'),
('RS', 'Relation specification'),
('IN', 'Intersection'),
('CP', 'Complement'),
('UN', 'Union'),
)
DEPTYPE_CHOICES = (
('0', 'Concept-Concept'),
('1', 'Activity-Activity'),
('2', 'Question-Question'),
('3', 'Concept-Activity'),
('4', 'Activity-Concept'),
('5', 'Question-Concept'),
('6', 'Concept-Question'),
('7', 'Question-Activity'),
('8', 'Activity-Question'),
)
FIELD_TYPE_CHOICES = (
('1', 'CharField'),
('2', 'TextField'),
('3', 'IntegerField'),
('4', 'CommaSeparatedIntegerField'),
('5', 'BigIntegerField'),
('6', 'PositiveIntegerField'),
('7', 'DecimalField'),
('8', 'FloatField'),
('9', 'BooleanField'),
('10', 'NullBooleanField'),
('11', 'DateField'),
('12', 'DateTimeField'),
('13', 'TimeField'),
('14', 'EmailField'),
('15', 'FileField'),
('16', 'FilePathField'),
('17', 'ImageField'),
('18', 'URLField'),
('19', 'IPAddressField'),
)
STATUS_CHOICES = ((DRAFT, _('draft')),
(HIDDEN, _('hidden')),
(PUBLISHED, _('published')))
counter = 1
attr_counter = -1
class Author(User):
"""Proxy Model around User"""
objects = models.Manager()
published = AuthorPublishedManager()
def nodetypes_published(self):
"""Return only the nodetypes published"""
return nodetypes_published(self.nodetypes)
@property
def title(self):
return self.username
@models.permalink
def get_absolute_url(self):
"""Return author's URL"""
#return "/authors/%s/" %(self.username)
return ('gstudio_author_detail', (self.username,))
class Meta:
"""Author's Meta"""
proxy = True
class NID(models.Model):
"""the set of all nodes. provides node ID (NID) to all nodes in
the network, including edges. Edges are also first class citizens
in the gnowledge base. """
title = models.CharField(_('title'), help_text=_('give a name to the node'), max_length=255)
last_update = models.DateTimeField(_('last update'), default=datetime.now)
creation_date = models.DateTimeField(_('creation date'),
default=datetime.now)
slug = models.SlugField(help_text=_('used for publication'),
unique_for_date='creation_date',
max_length=255)
nodemodel = models.CharField(_('nodemodel'),max_length=255)
@property
def get_revisioncount(self):
"""
Returns Number of Version
"""
i=0
ver=Version.objects.get_for_object(self)
for each in ver:
i=i+1
return i
@property
def get_version_list(self):
"""
Returns Version list
"""
ver=Version.objects.get_for_object(self)
return ver
@property
def get_ssid(self):
"""
return snapshot ids (revision id).
returns a list.
"""
slist=[]
vlist=self.get_version_list
for each in vlist:
slist.append(each.id)
return slist
def version_info(self,ssid):
version_object=Version.objects.get(id=ssid)
return version_object.field_dict
def get_version_nbh(self,ssid):
"""
Returns Version nbh
"""
ver_dict=self.version_info(ssid)
ver_nbh_list=[]
ver_nbh_dict={}
for item in self.get_nbh.keys():
if item in ver_dict.keys():
ver_nbh_list.append(item)
for each in ver_nbh_list:
ver_nbh_dict[each]=ver_dict[each]
return ver_nbh_dict
def get_serialized_dict(self):
"""
return the fields in a serialized form of the current object using the __dict__ function.
"""
return self.__dict__
@models.permalink
def get_absolute_url(self):
"""Return nodetype's URL"""
if self.ref.__class__.__name__=='Gbobject' or self.ref.__class__.__name__=='Process' or self.ref.__class__.__name__=='System':
return('objectapp_gbobject_detail',(),{
'year':self.creation_date.strftime('%Y'),
'month':self.creation_date.strftime('%m'),
'day':self.creation_date.strftime('%d'),
'slug':self.slug})
else:
return ('gstudio_nodetype_detail', (), {
'year': self.creation_date.strftime('%Y'),
'month': self.creation_date.strftime('%m'),
'day': self.creation_date.strftime('%d'),
'slug': self.slug})
@property
def ref(self):
from objectapp.models import *
return eval(self.nodemodel).objects.get(id=self.id)
# """
# Returns the object reference the id belongs to.
# """
# try:
# """
# ALGO: get object id, go to version model, return for the given id.
# """
# # Retrieving only the relevant tupleset for the versioned objects
# # vrs = Version.objects.filter(type=0 , object_id=self.id)
# # Returned value is a list, so splice it.
# vrs = vrs[0]
# except:
# return None
# return vrs.object
@property
def reftype(self):
"""
Returns the type the id belongs to.
"""
try:
"""
ALGO: simple wrapper for the __class__.__name__ so that it can be used in templates
"""
# return self.__class__.__name__
obj = self.ref
return obj.__class__.__name__
except:
return None
@property
def getat(self):
"""This is will give the possible attributetypes """
try:
pt = []
attributetype = []
returndict = {}
pt.append(self.ref)
obj = self.ref
while obj.parent:
pt.append((obj.parent).ref)
obj=obj.parent
for each in pt:
attributetype.append(each.subjecttype_of.all())
attributetype = [num for elem in attributetype for num in elem]
for i in attributetype:
if str(i.applicable_nodetypes) == 'OT':
returndict.update({str(i.title):i.id})
return returndict.keys()
except:
return None
@property
def getrt(self):
"""pt =[] contains parenttype
reltype =[] contains relationtype
titledict = {} contains relationtype's title
inverselist = [] contains relationtype's inverse
finaldict = {} contains either title of relationtype or inverse of relationtype
listval=[] contains keys of titledict to check whether parenttype id is equals to listval's left or right subjecttypeid"""
pt =[]
reltype =[]
titledict = {}
inverselist = []
finaldict = {}
listval=[]
pt.append(self.ref)
obj = self.ref
while obj.parent:
pt.append((obj.parent).ref)
obj=obj.parent
for i in range(len(pt)):
if Relationtype.objects.filter(left_subjecttype = pt[i].id):
reltype.append(Relationtype.objects.filter(left_subjecttype = pt[i].id))
if Relationtype.objects.filter(right_subjecttype = pt[i].id):
reltype.append(Relationtype.objects.filter(right_subjecttype = pt[i].id))
reltype = [num for elem in reltype for num in elem] #this rqud for filtering
for i in reltype:
titledict.update({i.title:i.id})
for i in range(len(titledict)):
listval.append(Relationtype.objects.get(title = titledict.keys()[i]))
obj=Relationtype.objects.get(title=titledict.keys()[i])
inverselist.append(str(obj.inverse))
for j in range(len(pt)):
for i in range(len(listval)):
if pt[j].id == listval[i].left_subjecttype_id and str(listval[i].left_applicable_nodetypes) == 'OT' :
finaldict.update({titledict.keys()[i]:titledict.values()[i]})
if pt[j].id == listval[i].right_subjecttype_id and str(listval[i].right_applicable_nodetypes)=='OT':
finaldict.update({inverselist[i]:titledict.values()[i]})
return finaldict.keys()
@property
def get_edit_url(self):
return "/admin/" + self._meta.app_label + "/" + self._meta.module_name + "/" + str(self.id)
def get_serialized_data(self):
"""
return the fields in a serialized form of the current object.
get object id, go to version model, return serialized_data for the given id
"""
from reversion.models import Version
version = Version.objects.get(id=self.id)
return version.serialized_data
def __unicode__(self):
return self.title
class Meta:
"""NID's Meta"""
class Node(NID):
"""
Super class
"""
altnames = TagField(_('alternate names'), help_text=_('alternate names if any'), blank=True, null=True)
plural = models.CharField(_('plural name'), help_text=_('plural form of the node name if any'), max_length=255, blank=True, null=True)
rating = RatingField(range=5, can_change_vote = True, help_text=_('your rating'), blank=True, null=True)
status = models.IntegerField(choices=STATUS_CHOICES, default=PUBLISHED)
start_publication = models.DateTimeField(_('start publication'),
help_text=_('date start publish'),
default=datetime.now)
end_publication = models.DateTimeField(_('end publication'),
help_text=_('date end publish'),
default=datetime(2042, 3, 15))
sites = models.ManyToManyField(Site, verbose_name=_('sites publication'),
related_name='nodetypes')
nbhood = models.TextField(help_text="The rendered neighbourhood of the model.")
# nbh = models.TextField(help_text="The neighbourhood of the model.")
published = NodePublishedManager()
def __unicode__(self):
title=self.title
modelname=self.nodemodel
displayname=modelname+": "+title
return displayname
class Meta:
abstract=False
class Metatype(Node):
"""
Metatype object for Nodetype
"""
description = models.TextField(_('description'), blank=True, null=True)
parent = models.ForeignKey('self', null=True, blank=True, verbose_name=_('parent metatype'), related_name='children')
def nodetypes_published(self):
"""
Return only the published nodetypes
"""
return nodetypes_published(self.member_types)
@property
def get_nbh(self):
"""
Returns the neighbourhood of the metatype
"""
nbh = {}
nbh['title'] = self.title
nbh['altnames'] = self.altnames
nbh['plural'] = self.plural
if self.parent:
nbh['typeof'] = self.parent
# generate ids and names of children/members
nbh['contains_subtypes'] = self.children.get_query_set()
nbh['contains_members'] = self.nodetypes_published()
nbh['left_subjecttype_of'] = Relationtype.objects.filter(left_subjecttype=self.id)
nbh['right_subjecttype_of'] = Relationtype.objects.filter(right_subjecttype=self.id)
nbh['attributetypes'] = Attributetype.objects.filter(subjecttype=self.id)
return nbh
@property
def get_possible_attributetypes(self):
"""
Gets the relations possible for this metatype
1. Recursively create a set of all the ancestors i.e. parent/subtypes of the MT.
2. Get all the AT's linked to each ancestor
"""
#Step 1.
ancestor_list = []
this_parent = self.parent
# recursive thru parent field and append
while this_parent:
ancestor_list.append(this_parent)
this_parent = this_parent.parent
#Step 2.
attrtypes = []
for each in ancestor_list:
# retrieve all the AT's from each ancestor
attrtypes.extend(Attributetype.objects.filter(subjecttype=each.id))
return attrtypes
@property
def get_possible_rels(self):
"""
Gets the relations possible for this metatype
1. Recursively create a set of all the ancestors i.e. parent/subtypes of the MT.
2. Get all the R's linked to each ancestor
"""
#Step 1.
ancestor_list = []
this_parent = self.parent
# append
while this_parent:
ancestor_list.append(this_parent)
this_parent = this_parent.parent
#Step 2.
rels = {}
rt_set = Relation.objects.all()
right_subset = []
left_subset = []
for each in ancestor_list:
# retrieve all the RT's from each ancestor
right_subset.extend(rt_set.filter(subject1=each.id))
left_subset.extend(rt_set.filter(subject2=each.id))
rels['possible_leftroles'] = left_subset
rels['possible_rightroles'] = right_subset
return rels
@property
def get_possible_attributes(self):
"""
Gets the relations possible for this metatype
1. Recursively create a set of all the ancestors i.e. parent/subtypes of the MT.
2. Get all the RT's linked to each ancestor
"""
#Step 1.
ancestor_list = []
this_parent = self.parent
# recursive thru parent field and append
while this_parent:
ancestor_list.append(this_parent)
this_parent = this_parent.parent
#Step 2.
attrs = []
for each in ancestor_list:
# retrieve all the AT's from each ancestor
attrs.extend(Attribute.objects.filter(subject=each.id))
return attrs
@property
def get_rendered_nbh(self):
"""
Returns the neighbourhood of the metatype
"""
history=[]
version_list=self.get_ssid
if version_list:
length=len(version_list)
history_ssid=version_list[length-1]
history_dict=self.version_info(history_ssid)
history_nbh_dict=ast.literal_eval(history_dict['nbhood'])
#ssid_current.append(history_ssid)
history=history_nbh_dict['history']
history.append(history_ssid)
else:
history.append(0)
nbh = {}
history_list=self.get_ssid
nbh['title'] = self.title
nbh['altnames'] = self.altnames
nbh['plural'] = self.plural
if self.parent:
obj=NID.objects.get(id=self.parent)
typeof[parent] = obj.ref.get_absolute_url()
#nbh['typeof'] = self.parent
# generate ids and names of children
nbh['contains_subtypes'] = self.children.get_query_set()
contains_members_list = []
for each in self.nodetypes_published():
contains_members_list.append('%s' % (each.get_absolute_url(), each.title))
nbh['contains_members'] = contains_members_list
nbh['left_subjecttype_of'] = Relationtype.objects.filter(left_subjecttype=self.id)
nbh['right_subjecttype_of'] = Relationtype.objects.filter(right_subjecttype=self.id)
nbh['attributetypes'] = Attributetype.objects.filter(subjecttype=self.id)
nbh['history']=history
return nbh
@property
def tree_path(self):
"""Return metatype's tree path, by its ancestors"""
if self.parent:
return u'%s/%s' % (self.parent.tree_path, self.slug)
return self.slug
def __unicode__(self):
displayname="MT: "+self.title
return displayname
@property
def composed_sentence(self):
"composes the relation as a sentence in triple format."
if self.parent:
return u'%s is a kind of %s' % (self.title, self.parent.tree_path)
return u'%s is a root node' % (self.slug)
@models.permalink
def get_absolute_url(self):
"""Return metatype's URL"""
return ('gstudio_metatype_detail', (self.tree_path,))
class Meta:
"""Metatype's Meta"""
ordering = ['title']
verbose_name = _('metatype')
verbose_name_plural = _('metatypes')
# Save for metatype
def save(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
self.nbhood=[]
super(Metatype, self).save(*args, **kwargs) # Call the "real" save() method.
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(Metatype, self).save(*args, **kwargs) # Call the "real" save() method.
class Edge(NID):
metatypes = models.ManyToManyField(Metatype, verbose_name=_('member of metatypes'),
related_name='member_edges',
blank=True, null=True)
def __unicode__(self):
displayname="ED: " + self.title
return displayname
class Meta:
""" Meta class for Edge """
def save(self, *args, **kwargs):
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(Edge, self).save(*args, **kwargs) # Call the "real" save() method.
super(Edge, self).save(*args, **kwargs) # Call the "real" save() method.
class Nodetype(Node):
"""
Model design for publishing nodetypes. Other nodetypes inherit this class.
"""
STATUS_CHOICES = ((DRAFT, _('draft')),
(HIDDEN, _('hidden')),
(PUBLISHED, _('published')))
content = models.TextField(_('content'), null=True, blank=True)
content_org = models.TextField(_('content_org'), null=True, blank=True)
parent = models.ForeignKey('self', null=True, blank=True,
verbose_name=_('is a kind of'),
related_name='children')
prior_nodes = models.ManyToManyField('self', symmetrical=False,null=True, blank=True,
verbose_name=_('its meaning depends on '),
related_name='nodetype_prior_nodes')
posterior_nodes = models.ManyToManyField('self', symmetrical=False,null=True, blank=True,
verbose_name=_('required for the meaning of '),
related_name='nodetype_posterior_nodes')
image = models.ImageField(_('image'), upload_to=UPLOAD_TO,
blank=True, help_text=_('used for illustration'))
excerpt = models.TextField(_('excerpt'), blank=True,
help_text=_('optional element'))
tags = TagField(_('tags'))
metatypes = models.ManyToManyField(Metatype, verbose_name=_('member of metatypes'),
related_name='member_types',
blank=True, null=True)
authors = models.ManyToManyField(User, verbose_name=_('authors'),
related_name='nodetypes',
blank=True, null=False)
featured = models.BooleanField(_('featured'), default=False)
comment_enabled = models.BooleanField(_('comment enabled'), default=True)
pingback_enabled = models.BooleanField(_('linkback enabled'), default=True)
login_required = models.BooleanField(
_('login required'), default=False,
help_text=_('only authenticated users can view the nodetype'))
password = models.CharField(
_('password'), max_length=50, blank=True,
help_text=_('protect the nodetype with a password'))
template = models.CharField(
_('template'), max_length=250,
default='gstudio/nodetype_detail.html',
choices=[('gstudio/nodetype_detail.html', _('Default template'))] + \
NODETYPE_TEMPLATES,
help_text=_('template used to display the nodetype'))
rurl=models.URLField(_('rurl'),verify_exists=True,null=True, blank=True)
objects = models.Manager()
published = NodetypePublishedManager()
def get_possible_reltypes(self):
"""
Gets the relations possible for this metatype
1. Recursively create a set of all the ancestors i.e. parent/subtypes of the MT.
2. Get all the RT's linked to each ancestor
"""
#Step 1.
ancestor_list = []
this_parent = self.parent
# append
while this_parent:
ancestor_list.append(this_parent)
this_parent = this_parent.parent
#Step 2.
reltypes = {}
rt_set = Relationtype.objects.all()
right_subset = []
left_subset = []
for each in ancestor_list:
# retrieve all the RT's from each ancestor
right_subset.extend(rt_set.filter(subjecttypeLeft=each.id))
left_subset.extend(rt_set.filter(subjecttypeRight=each.id))
reltypes['possible_leftroles'] = left_subset
reltypes['possible_rightroles'] = right_subset
return reltypes
@property
def get_edit_url_for_ats(self):
'''
Get all the attributes from get_rendered_nbh and return their URLs
'''
retdict={}
for key,value in self.get_rendered_nbh.items():
if key:
if key=='attributes':
for akey,avalue in value.items():
ats=Attributetype.objects.filter(title=akey)
if ats:
ats=Attributetype.objects.get(title=akey)
for atrbs in Attribute.objects.all():
if atrbs.attributetype_id==ats.id:
gid=NID.objects.get(id=atrbs.id).ref.get_edit_url
retdict[gid]=atrbs.svalue
return retdict
@property
def get_at_url_add(self):
"""
Gets all the ATs(excluding those for which the Attributes are already added) with their urls for adding attributes
Get all ATs of NT. Get the attribute-model-name from its 'dataType'. Check whether entry exists in Attribute table for this AT.
Else return it along with its admin-add-form-url.
"""
retats={}
ats=self.subjecttype_of.all()
if ats:
for each in ats:
if each.applicable_nodetypes=='OT':
atdatatype=each.dataType
if atdatatype=='1':
model= 'CharField'
if atdatatype=='2':
model='TextField'
if atdatatype=='3':
model='IntegerField'
if atdatatype=='4':
model='CommaSeparatedIntegerField'
if atdatatype=='5':
model='BigIntegerField'
if atdatatype=='6':
model='PositiveIntegerField'
if atdatatype=='7':
model='DecimalField'
if atdatatype=='8':
model='FloatField'
if atdatatype=='9':
model='BooleanField'
if atdatatype=='10':
model='NullBooleanField'
if atdatatype=='11':
model='DateField'
if atdatatype=='12':
model='DateTimeField'
if atdatatype=='13':
model='TimeField'
if atdatatype=='14':
model= 'EmailField'
if atdatatype=='15':
model='FileField'
if atdatatype=='16':
model='FilePathField'
if atdatatype=='17':
model='ImageField'
if atdatatype=='18':
model='URLField'
if atdatatype=='19':
model='IPAddressField'
aturl="admin/gstudio/attribute"+model.lower()+"/add/?attributetype="+str(each.id)+"&subject="+str(self.id)
atsubject=self.subject_of.all()
"""
check whether Attribute for the current AT is already added or not
"""
fl=0
for eachs in atsubject:
if eachs.attributetype_id==each.id and eachs.subject_id==each.subjecttype.id:
fl=1
"""
fl=0 means, Attribute for AT is not added, now show it as to be added
"""
if fl==0:
retats[each.title]=aturl
return retats
@property
def get_possible_attributetypes(self):
"""
Gets the relations possible for this metatype
1. Recursively create a set of all the ancestors i.e. parent/subtypes of the MT.
2. Get all the AT's linked to each ancestor
"""
#Step 1.
ancestor_list = []
this_parent = self.parent
# recursive thru parent field and append
while this_parent:
ancestor_list.append(this_parent)
this_parent = this_parent.parent
#Step 2.
attrtypes = []
for each in ancestor_list:
# retrieve all the AT's from each ancestor
attrtypes.extend(Attributetype.objects.filter(subjecttype=each.id))
return attrtypes
@property
def get_possible_rels(self):
"""
Gets the relations possible for this metatype
1. Recursively create a set of all the ancestors i.e. parent/subtypes of the MT.
2. Get all the R's linked to each ancestor
"""
#Step 1.
ancestor_list = []
this_parent = self.parent
# append
while this_parent:
ancestor_list.append(this_parent)
this_parent = this_parent.parent
#Step 2.
rels = {}
rt_set = Relation.objects.all()
right_subset = []
left_subset = []
for each in ancestor_list:
# retrieve all the RT's from each ancestor
right_subset.extend(rt_set.filter(subject1=each.id))
left_subset.extend(rt_set.filter(subject2=each.id))
rels['possible_leftroles'] = left_subset
rels['possible_rightroles'] = right_subset
return rels
def get_graph_json(self):
g_json = {}
g_json["node_metadata"]= []
g_json["relations"]=[]
global counter
global attr_counter
nbh = self.get_nbh
predicate_id = {}
for key in nbh.keys():
val = str(counter) + "b"
predicate_id[key] = val
counter = counter + 1
#print predicate_id
this_node = {"_id":str(self.id),"title":self.title,"screen_name":self.title, "url":self.get_absolute_url(),"refType":self.reftype}
g_json["node_metadata"].append(this_node)
for key in predicate_id.keys():
if nbh[key]:
try:
g_json["node_metadata"].append({"_id":str(predicate_id[key]),"screen_name":key})
g_json["relations"].append({"from":self.id ,"type":str(key),"value":1,"to":predicate_id[key] })
if not isinstance(nbh[key],basestring) and len(nbh[key])<=10:
for item in nbh[key]:
if isinstance(item,unicode):
g_json["node_metadata"].append({"_id":(str(attr_counter)+"b"),"screen_name":str(item)})
g_json["relations"].append({"from":predicate_id[key] ,"type":str(key) ,"value":1,"to":(str(attr_counter)+"b") })
attr_counter-=1
elif item.reftype!="Relation":
# create nodes
g_json["node_metadata"].append({"_id":str(item.id),"screen_name":item.title,"title":self.title, "url":item.get_absolute_url(),"refType":item.reftype})
g_json["relations"].append({"from":predicate_id[key] ,"type":str(key), "value":1,"to":item.id })
else:
if item.left_subject.id==self.id:
item1=item.right_subject
flag=1
elif item.right_subject.id==self.id:
item1=item.left_subject
flag=0
g_json["node_metadata"].append({"_id":str(item1.id),"screen_name":item1.title,"title":self.title, "url":item1.get_absolute_url(),"refType":item.reftype,"inverse":item.relationtype.inverse,"flag":flag})
g_json["relations"].append({"from":predicate_id[key] ,"type":str(key), "value":1,"to":item1.id })
else:
if not isinstance(nbh[key],basestring):
g_json["node_metadata"].append({"_id":(str(attr_counter))+"a","screen_name":str(len(nbh[key]))+" nodes...","title":str(key),"url":"/nodetypes/graphs/graph_label/"+str(self.id)+"/"+str(key)})
#g_json["relations"].append({"from":predicate_id[key] ,"type":str(key) ,"value":1,"to":(str(attr_counter))})
else:
g_json["node_metadata"].append({"_id":(str(attr_counter)+"a"),"screen_name":nbh[key]})
g_json["relations"].append({"from":predicate_id[key] ,"type":str(key) ,"value":1,"to":(str(attr_counter)+"a")})
attr_counter-=1
except:
pass
#print g_json
return json.dumps(g_json)
def get_label(self,key):
nbh=self.get_nbh
list_of_nodes=[]
for item in nbh[key]:
node=NID.objects.get(id=item.id)
node=node.ref
list_of_nodes.append(node)
return list_of_nodes
@property
def get_possible_attributes(self):
"""
Gets the relations possible for this metatype
1. Recursively create a set of all the ancestors i.e. parent/subtypes of the MT.
2. Get all the RT's linked to each ancestor
"""
#Step 1.
ancestor_list = []
this_parent = self.parent
# recursive thru parent field and append
while this_parent:
ancestor_list.append(this_parent)
this_parent = this_parent.parent
#Step 2.
attrs = []
for each in ancestor_list:
# retrieve all the AT's from each ancestor
attrs.extend(Attribute.objects.filter(subject=each.id))
return attrs
@property
def tree_path(self):
"""Return nodetype's tree path, by its ancestors"""
if self.parent:
return u'%s/%s' % (self.parent.tree_path, self.slug)
return self.slug
@property
def tree_path_sentence(self):
""" Return the parent of the nodetype in a triple form """
if self.parent:
return u'%s is a kind of %s' % (self.title, self.parent.tree_path)
return u'%s is a root node' % (self.title)
@property
def html_content(self):
"""Return the content correctly formatted"""
if MARKUP_LANGUAGE == 'markdown':
return markdown(self.content, MARKDOWN_EXTENSIONS)
elif MARKUP_LANGUAGE == 'textile':
return textile(self.content)
elif MARKUP_LANGUAGE == 'restructuredtext':
return restructuredtext(self.content)
elif not '' in self.content:
return linebreaks(self.content)
return self.content
@property
def get_relations(self):
relation_set = {}
# ALGO to find the relations and their left-subjecttypes and right_subjecttypes
# 1. Get the relations containing a reference to the object. Retrieve where it occurs (left or right)
# 2. Find out which RT they come from.
# 3. For each RT, create a dict key and a value as a dict. And add the relation as a new key-value pair (rid:subject).
# 4. If self is in right value, then add inverse relation as RT and add the relation as a new key-value pair (rid:subject).
left_relset = Relation.objects.filter(left_subject=self.id)
right_relset = Relation.objects.filter(right_subject=self.id)
#return left_relset + right_relset
# RT dictionary to store a single relation
rel_dict ={}
rel_dict['left-subjecttypes'] = {}
rel_dict['right_subjecttypes'] ={}
for relation in left_relset:
# check if relation already exists
if relation.relationtype.title not in rel_dict['left-subjecttypes'].keys():
# create a new list field and add to it
rel_dict['left-subjecttypes'][str(relation.relationtype.title)] = []
# add
rel_dict['left-subjecttypes'][str(relation.relationtype.title)].append(relation)
for relation in right_relset:
# check if relation exists
if relation.relationtype.inverse not in rel_dict['right_subjecttypes'].keys():
# create a new list key field and add to it
rel_dict['right_subjecttypes'][str(relation.relationtype.inverse)] = []
# add to the existing key
rel_dict['right_subjecttypes'][str(relation.relationtype.inverse)].append(relation)
relation_set.update(rel_dict['left-subjecttypes'])
relation_set.update(rel_dict['right_subjecttypes'])
return relation_set
@property
def get_rendered_relations(self):
"""
Returns all the relations of the nodetype
"""
relations={}
reltype={}
left_relations=Relation.objects.filter(left_subject=self.id)
if left_relations:
for each in left_relations:
relation=each.relationtype.title
predicate=each.right_subject
predicate_values=[]
if reltype:
fl=0
for key,value in reltype.items():
if type(value) <> list:
t=[]
t.append(value)
predicate_values=t
else:
predicate_values=value
if each.relationtype.title==key:
fl=1
predicate_values.append(predicate)
reltype[key]=predicate_values
if fl==0:
predicate_values=predicate
reltype[relation]=predicate_values
else:
predicate_values.append(predicate)
reltype[relation]=predicate_values
relations['lrelations']=reltype
right_relations=Relation.objects.filter(right_subject=self.id)
reltype={}
if right_relations:
for each in right_relations:
relation=each.relationtype.inverse
predicate=each.left_subject
predicate_values=[]
if reltype:
fl=0
for key,value in reltype.items():
if type(value) <> list:
t=[]
t.append(value)
prdicate_values=t
else:
predicate_values=value
if each.relationtype.inverse==key:
fl=1
predicate_values.append(predicate)
reltype[key]=predicate_values
if fl==0:
predicate_values=predicate
reltype[relation]=predicate_values
else:
predicate_values.append(predicate)
reltype[relation]=predicate_values
relations['rrelations']=reltype
return relations
@property
def get_attributes(self):
attributes_dict = {}
all_attributes=self.subject_of.all()
for attributes in all_attributes:
val=[]
atr_key=attributes.attributetype.title
val.append(attributes.svalue)
if attributes_dict:
fl=0
itms=attributes_dict
for key,value in itms.items():
if atr_key in key:
fl=1
if type(value) <> list:
t=[]
t.append(value)
val.extend(t)
else:
val.extend(value)
attributes_dict[atr_key]=val
return attributes_dict
@property
def previous_nodetype(self):
"""Return the previous nodetype"""
nodetypes = Nodetype.published.filter(
creation_date__lt=self.creation_date)[:1]
if nodetypes:
return nodetypes[0]
@property
def next_nodetype(self):
"""Return the next nodetype"""
nodetypes = Nodetype.published.filter(
creation_date__gt=self.creation_date).order_by('creation_date')[:1]
if nodetypes:
return nodetypes[0]
@property
def word_count(self):
"""Count the words of a nodetype"""
return len(strip_tags(self.html_content).split())
@property
def is_actual(self):
"""Check if a nodetype is within publication period"""
now = datetime.now()
return now >= self.start_publication and now < self.end_publication
@property
def is_visible(self):
"""Check if a nodetype is visible on site"""
return self.is_actual and self.status == PUBLISHED
@property
def related_published(self):
"""Return only related nodetypes published"""
return nodetypes_published(self.related)
@property
def discussions(self):
"""Return published discussions"""
return comments.get_model().objects.for_model(
self).filter(is_public=True)
@property
def comments(self):
"""Return published comments"""
return self.discussions.filter(Q(flags=None) | Q(
flags__flag=CommentFlag.MODERATOR_APPROVAL))
@property
def pingbacks(self):
"""Return published pingbacks"""
return self.discussions.filter(flags__flag='pingback')
@property
def trackbacks(self):
"""Return published trackbacks"""
return self.discussions.filter(flags__flag='trackback')
@property
def comments_are_open(self):
"""Check if comments are open"""
if AUTO_CLOSE_COMMENTS_AFTER and self.comment_enabled:
return (datetime.now() - self.start_publication).days < \
AUTO_CLOSE_COMMENTS_AFTER
return self.comment_enabled
@property
def short_url(self):
"""Return the nodetype's short url"""
return get_url_shortener()(self)
def __unicode__(self):
objref=str(self.ref)
reftitle=str(self.ref.title)
objref=objref.replace(reftitle,"")
objtype=objref.strip()
return objtype + " " + self.title
@property
def memberof_sentence(self):
"""Return the metatype of which the nodetype is a member of"""
if self.metatypes.count:
for each in self.metatypes.all():
return u'%s is a member of metatype %s' % (self.title, each)
return u'%s is not a fully defined name, consider making it a member of a suitable metatype' % (self.title)
@property
def subtypeof_sentence(self):
"composes the relation as a sentence in triple format."
if self.parent:
return u'%s is a subtype of %s' % (self.title, self.parent.tree_path)
return u'%s is a root node' % (self.title)
composed_sentence = property(subtypeof_sentence)
def subtypeof(self):
"retuns the parent nodetype."
if self.parent:
return u'%s' % (self.parent.tree_path)
return None
@models.permalink
def get_absolute_url(self):
"""Return nodetype's URL"""
return ('gstudio_nodetype_detail', (), {
'year': self.creation_date.strftime('%Y'),
'month': self.creation_date.strftime('%m'),
'day': self.creation_date.strftime('%d'),
'slug': self.slug})
def get_version_url(self):
"""Return nodetype's URL"""
return "/nodetypes/display/viewhistory/"
def get_serialized_data(self):
"""
return the fields in a serialized form of the current object.
get object id, go to version model, return serialized_data for the given id
"""
from reversion.models import Version
version = Version.objects.get(id=self.node_ptr_id)
return version.serialized_data
class Meta:
"""Nodetype's Meta"""
ordering = ['-creation_date']
verbose_name = _('node type')
verbose_name_plural = _('node types')
permissions = (('can_view_all', 'Can view all'),
('can_change_author', 'Can change author'), )
class Objecttype(Nodetype):
'''
Object class
'''
def __unicode__(self):
displayname="OT: "+self.title
return displayname
@property
def get_attributetypes(self):
return self.subjecttype_of.all()
@property
def get_relationtypes(self):
left_relset = self.left_subjecttype_of.all()
right_relset = self.right_subjecttype_of.all()
reltypes = {}
reltypes['left_subjecttype_of']=left_relset
reltypes['right_subjecttype_of']=right_relset
return reltypes
@property
def get_left_subjecttypes(self):
"""
for which relation types does this object become a domain of any relation type
"""
reltypes = []
left_relset = self.left_subjecttype_of.all()
for relationtype in left_relset:
reltypes.append(relationtype)
return reltypes
@property
def get_rightroles(self):
"""
for which relation types does this object become a domain of any relation type
"""
reltypes = []
right_relset = self.right_subjecttype_of.all()
for relationtype in right_relset:
reltypes.append(relationtype)
return reltypes
@property
def get_subjecttypes(self):
"""
for which relation types does this object become a domain of any relation type
"""
subjecttypes = []
attrset = self.subjecttype_of.all()
for subjecttype in attrset:
subjecttypes.append(subjecttype)
return subjecttypes
@property
def member_of_metatypes(self):
"""
returns if the objecttype is a member of the membership in a metatype class
"""
types = []
if self.metatypes.all():
for metatype in self.metatypes.all():
types.append(metatype.title)
return types
@property
def get_members(self):
"""
get members of the object type
"""
members = []
if self.member_objects.all():
for gbobject in self.member_objects.all():
members.append(gbobject)
return members
@property
def get_nbh(self):
"""
Returns the neighbourhood of the nodetype
"""
nbh = {}
nbh['title'] = self.title
nbh['altnames'] = self.altnames
nbh['plural'] = self.plural
nbh['member_of_metatype'] = self.metatypes.all()
# get all the ATs for the objecttype
nbh['subjecttype_of']= self.subjecttype_of.all()
# get all the RTs for the objecttype
nbh.update(self.get_relationtypes)
# Looks like somebody forgot relations !
nbh.update(self.get_relations)
if self.parent:
nbh['type_of'] = [self.parent]
nbh['contains_subtypes'] = Nodetype.objects.filter(parent=self.id)
# get all the objects inheriting this OT
nbh['contains_members'] = self.member_objects.all()
nbh['prior_nodes'] = self.prior_nodes.all()
nbh['posterior_nodes'] = self.posterior_nodes.all()
#nbh['authors'] = self.authors.all()
return nbh
@property
def get_rendered_nbh(self):
"""
Returns the neighbourhood of the nodetype
"""
history=[]
version_list=self.get_ssid
if version_list:
length=len(version_list)
history_ssid=version_list[length-1]
history_dict=self.version_info(history_ssid)
# history_nbh_dict=ast.literal_eval(history_dict['nbhood'])
#ssid_current.append(history_ssid)
# history=history_nbh_dict['history']
history.append(history_ssid)
else:
history.append(0)
nbh = {}
nbh['title'] = self.title
nbh['count_title'] = len(nbh['title'])
nbh['altnames'] = self.altnames
nbh['count_altnames'] = len(nbh['altnames'])
nbh['plural'] = self.plural
#nbh['count_plural'] = len(nbh['plural'])
#get all MTs
member_of_dict = {}
for each in self.metatypes.all():
member_of_dict[each.title]= each.get_absolute_url()
nbh['member_of_metatypes']=member_of_dict
nbh['count_member_of_metatypes'] = len(nbh['member_of_metatypes'])
typeof={}
parentid=self.parent_id
if parentid:
parent=Nodetype.objects.get(id=parentid)
if parent:
typeof[parent] = parent.get_absolute_url()
nbh['type_of']=typeof
nbh['count_type_of'] = len(nbh['type_of'])
#get all subtypes
subtypes={}
for each in Nodetype.objects.filter(parent=self.id):
subtypes[each.title] =each.get_absolute_url()
nbh['contains_subtypes']=subtypes
nbh['count_contains_subtypes'] = len(nbh['contains_subtypes'])
# get all the objects inheriting this OT
contains_members_dict = {}
for each in self.member_objects.all():
contains_members_dict[each.title]= each.get_absolute_url()
nbh['contains_members'] = contains_members_dict
nbh['count_contains_members'] = len(nbh['contains_members'])
#get prior nodes
priornodes_dict = {}
for each in self.prior_nodes.all():
priornodes_dict[each.title]= each.get_absolute_url()
nbh['priornodes'] = priornodes_dict
nbh['count_priornodes'] = len(nbh['priornodes'])
#get posterior nodes
posteriornodes_dict = {}
for each in self.posterior_nodes.all():
posteriornodes_dict[each.title]= each.get_absolute_url()
nbh['posteriornodes'] = posteriornodes_dict
nbh['count_posteriornodes'] = len(nbh['posteriornodes'])
#get authors
author_dict = {}
for each in self.authors.all():
author_dict['User'] = each.get_absolute_url()
nbh['authors'] = author_dict
#get siblings
siblings={}
for each in self.get_siblings():
siblings[each.title]=each.get_absolute_url()
nbh['siblings']=siblings
nbh['count_siblings'] = len(nbh['siblings'])
#get Relations
relns={}
rellft={}
relrgt={}
if self.get_rendered_relations:
NTrelns=self.get_rendered_relations
for key,value in NTrelns.items():
if key=="rrelations":
relrgt={}
for rgtkey,rgtvalue in value.items():
relnvalue={}
if isinstance(rgtvalue,list):
for items in rgtvalue:
relnvalue[items.title]=items.get_absolute_url()
else:
relnvalue[rgtvalue]=rgtvalue.get_absolute_url()
relrgt[rgtkey]=relnvalue
else:
rellft={}
relns['left']=rellft
for lftkey,lftvalue in value.items():
relnvalue={}
if isinstance(lftvalue,list):
for items in lftvalue:
relnvalue[items.title]=items.get_absolute_url()
else:
relnvalue[lftvalue]=lftvalue.get_absolute_url()
rellft[lftkey]=relnvalue
nbh['relations']=relrgt
nbh['relations'].update(rellft)
nbh['count_relations'] = len(nbh['relations'])
#get Attributes
attributes =self.get_attributes
nbh['attributes']=attributes
nbh['count_attributes'] = len(nbh['attributes'])
#get ATs
attributetypes={}
for each in self.subjecttype_of.all():
attributetypes[each.title]=each.get_absolute_url()
nbh['ats']=attributetypes
#get RTs as leftroles and rightroles
leftroles = {}
for each in self.left_subjecttype_of.all():
leftroles[each.title]=each.get_absolute_url()
nbh['leftroles']=leftroles
nbh['count_leftroles'] = len(nbh['leftroles'])
rightroles = {}
for each in self.right_subjecttype_of.all():
rightroles[each.title]=each.get_absolute_url()
nbh['rightroles']=rightroles
nbh['count_rightroles'] = len(nbh['rightroles'])
nbh['history']=history
return nbh
def get_Version_graph_json(self,ssid):
# # predicate_id={"plural":"a1","altnames":"a2","contains_members":"a3","contains_subtypes":"a4","prior_nodes":"a5", "posterior_nodes":"a6"}
# slist=self.get_ssid
ver_dict=self.version_info(ssid)
ver_dict1=self.version_info(ssid)
#ver_dict=str(ver['nbhood'])
ver_dict=ast.literal_eval(ver_dict['nbhood'])
g_json = {}
g_json["node_metadata"]= []
g_json["relations"]=[]
predicate_id = {}
counter=1
attr_counter=-1
for key in ver_dict.keys():
val = "a" + str(counter)
predicate_id[key] = val
counter = counter + 1
#print predicate_id
this_node = {"_id":str(self.id),"title":self.title,"screen_name":self.title, "url":self.get_absolute_url(),"refType":self.reftype}
g_json["node_metadata"].append(this_node)
for key in predicate_id.keys():
if (ver_dict[key] and (ver_dict[key])!=0 and not(isinstance(ver_dict[key],int ) )
) :
try:
g_json["node_metadata"].append({"_id":str(predicate_id[key]),"screen_name":key})
g_json["relations"].append({"from":self.id , "to":predicate_id[key],"value":1, "type":str(key) })
if not isinstance(ver_dict[key],basestring):
for item in ver_dict[key]:
# user
g_json["node_metadata"].append({"_id":(str(attr_counter)+"aa"),"screen_name":item })
#create links
g_json["relations"].append({"from":predicate_id[key] ,"type":str(key), "value":1,"to":(str(attr_counter)+"aa") })
attr_counter-=1
else:
g_json["node_metadata"].append({"_id":(str(attr_counter)+"a"),"screen_name":ver_dict[key]})
g_json["relations"].append({"from":predicate_id[key] , "to":(str(attr_counter)+"a") ,"value":1, "type":str(key) })
attr_counter-=1
except:
pass
# print g_json
return json.dumps(g_json)
class Meta:
"""
object type's meta class
"""
verbose_name = _('object type')
verbose_name_plural = _('object types')
permissions = (('can_view_all', 'Can view all'),
('can_change_author', 'Can change author'), )
# Save for Objecttype
# @reversion.create_revision()
def save(self,*args, **kwargs):
self.nodemodel = self.__class__.__name__
super(Objecttype, self).save(*args, **kwargs) # Call the "real" save() method.
self.nbhood=self.get_rendered_nbh
if GSTUDIO_VERSIONING:
with reversion.create_revision():
self.nodemodel = self.__class__.__name__
if self.parent:
ot=NID.objects.get(id=self.parent.id)
ot.ref.save()
super(Objecttype, self).save(*args, **kwargs) # Call the "real" save() method.
def save_revert_or_merge(self,*args, **kwargs):
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(Objecttype, self).save(*args, **kwargs) # Call the "real" save() method.
class Relationtype(Nodetype):
'''
Properties with left and right subjects (Binary relations) are defined in this class.
'''
inverse = models.CharField(_('inverse name'), help_text=_('when subjecttypes are interchanged, what should be the name of the relation type? This is mandatory field. If the relation is symmetric, same name will do.'), max_length=255,db_index=True )
left_subjecttype = models.ForeignKey(NID,related_name="left_subjecttype_of", verbose_name='left role')
left_applicable_nodetypes = models.CharField(max_length=2,choices=NODETYPE_CHOICES,default='OT', verbose_name='Applicable node types for left role')
left_cardinality = models.IntegerField(null=True, blank=True, verbose_name='cardinality for the left role')
right_subjecttype = models.ForeignKey(NID,related_name="right_subjecttype_of", verbose_name='right role')
right_applicable_nodetypes = models.CharField(max_length=2,choices=NODETYPE_CHOICES,default='OT', verbose_name='Applicable node types for right role')
right_cardinality = models.IntegerField(null=True, blank=True, verbose_name='cardinality for the right role')
is_symmetrical = models.NullBooleanField(verbose_name='Is symmetrical?')
is_reflexive = models.NullBooleanField(verbose_name='Is reflexive?')
is_transitive = models.NullBooleanField(verbose_name='Is transitive?')
def get_serialized_data(self):
"""
return the fields in a serialized form of the current object.
get object id, go to version model, return serialized_data for the given id
"""
from reversion.models import Version
version = Version.objects.get(id=self.node_ptr_id)
return version.serialized_data
def __unicode__(self):
displayname="RT: "+self.title
return displayname
@property
def get_rendered_nbh(self):
"""
Returns the neighbourhood of the Relationtype
"""
history=[]
version_list=self.get_ssid
if version_list:
length=len(version_list)
history_ssid=version_list[length-1]
history_dict=self.version_info(history_ssid)
history_nbh_dict=ast.literal_eval(history_dict['nbhood'])
#ssid_current.append(history_ssid)
history=history_nbh_dict['history']
history.append(history_ssid)
else:
history.append(0)
nbh = {}
nbh['title'] = self.title
nbh['count_title'] = len(nbh['title'])
nbh['altnames'] = self.altnames
nbh['count_altnames'] = len(nbh['altnames'])
nbh['plural'] = self.plural
# nbh['count_plural'] = len(nbh['plural'])
#get all MTs
member_of_dict = {}
for each in self.metatypes.all():
member_of_dict[each.title]= each.get_absolute_url()
nbh['member_of_metatypes']=member_of_dict
nbh['count_member_of_metatypes'] = len(nbh['member_of_metatypes'])
typeof={}
parent=self.parent_id
if parent:
obj=NID.objects.get(id=parent)
typeof[parent] = obj.ref.get_absolute_url()
nbh['type_of']=typeof
nbh['count_type_of'] = len(nbh['type_of'])
#get all subtypes
subtypes={}
for each in Nodetype.objects.filter(parent=self.id):
subtypes[each.title] =each.get_absolute_url()
nbh['contains_subtypes']=subtypes
nbh['count_contains_subtypes'] = len(nbh['contains_subtypes'])
# get all the objects inheriting this OT
contains_members_dict = {}
for each in self.member_objects.all():
contains_members_dict[each.title]= each.get_absolute_url()
nbh['contains_members'] = contains_members_dict
nbh['count_contains_members'] = len(nbh['contains_members'])
#get prior nodes
priornodes_dict = {}
for each in self.prior_nodes.all():
priornodes_dict[each.title]= each.get_absolute_url()
nbh['priornodes'] = priornodes_dict
nbh['count_priornodes'] = len(nbh['priornodes'])
#get posterior nodes
posteriornodes_dict = {}
for each in self.posterior_nodes.all():
posteriornodes_dict[each.title]= each.get_absolute_url()
nbh['posteriornodes'] = posteriornodes_dict
nbh['count_posteriornodes'] = len(nbh['posteriornodes'])
#get authors
author_dict = {}
for each in self.authors.all():
author_dict['User'] = each.get_absolute_url()
nbh['authors'] = author_dict
#get siblings
siblings={}
for each in self.get_siblings():
siblings[each.title]=each.get_absolute_url()
nbh['siblings']=siblings
nbh['count_siblings'] = len(nbh['siblings'])
#get Relations
relns={}
rellft={}
relrgt={}
if self.get_rendered_relations:
NTrelns=self.get_rendered_relations
for key,value in NTrelns.items():
if key=="rrelations":
relrgt={}
for rgtkey,rgtvalue in value.items():
relnvalue={}
if isinstance(rgtvalue,list):
for items in rgtvalue:
relnvalue[items]=items.get_absolute_url()
else:
relnvalue[rgtvalue]=rgtvalue.get_absolute_url()
relrgt[rgtkey]=relnvalue
else:
rellft={}
relns['left']=rellft
for lftkey,lftvalue in value.items():
relnvalue={}
if isinstance(lftvalue,list):
for items in lftvalue:
relnvalue[items]=items.get_absolute_url()
else:
relnvalue[lftvalue]=lftvalue.get_absolute_url()
rellft[lftkey]=relnvalue
nbh['relations']=relrgt
nbh['relations'].update(rellft)
nbh['count_relations'] = len(nbh['relations'])
#get Attributes
attributes =self.get_attributes
nbh['attributes']=attributes
nbh['count_attributes'] = len(nbh['attributes'])
#get ATs
attributetypes={}
for each in self.subjecttype_of.all():
attributetypes[each.title]=each.get_absolute_url()
nbh['ats']=attributetypes
#get RTs as leftroles and rightroles
leftroles = {}
for each in self.left_subjecttype_of.all():
leftroles[each.title]=each.get_absolute_url()
nbh['leftroles']=leftroles
nbh['count_leftroles'] = len(nbh['leftroles'])
rightroles = {}
for each in self.right_subjecttype_of.all():
rightroles[each.title]=each.get_absolute_url()
nbh['rightroles']=rightroles
nbh['count_rightroles'] = len(nbh['rightroles'])
nbh['history']=history
return nbh
def get_nbh(self):
"""
Returns the neighbourhood of the nodetype
"""
nbh = {}
nbh['title'] = self.title
nbh['altnames'] = self.altnames
nbh['plural'] = self.plural
nbh['contains_subtypes'] = Nodetype.objects.filter(parent=self.id)
nbh['contains_members'] = self.member_objects.all()
nbh['prior_nodes'] = self.prior_nodes.all()
nbh['posterior_nodes'] = self.posterior_nodes.all()
nbh['inverse']=self.inverse
nbh['left_subjecttype']=self.left_subjecttype
nbh['left_applicable_nodetypes']=self.left_applicable_nodetypes
nbh['left_cardinality']=self.left_cardinality
nbh['right_subjecttype']=self.right_subjecttype
nbh['right_applicable_nodetypes']=self.right_applicable_nodetypes
nbh['right_cardinality']=self.right_cardinality
nbh['is_symmetrical']=self.is_symmetrical
nbh['is_reflexive']=self.is_reflexive
nbh['is_transitive']=self.is_transitive
return nbh
class Meta:
"""
relation type's meta class
"""
verbose_name = _('relation type')
verbose_name_plural = _('relation types')
permissions = (('can_view_all', 'Can view all'),
('can_change_author', 'Can change author'), )
# Save for Relationtype
# @reversion.create_revision()
def save(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
super(Relationtype, self).save(*args, **kwargs) # Call the "real" save() method.
self.nbhood=self.get_rendered_nbh
if GSTUDIO_VERSIONING:
with reversion.create_revision():
self.nodemodel = self.__class__.__name__
super(Relationtype, self).save(*args, **kwargs) # Call the "real" save() method.
class Attributetype(Nodetype):
'''
To define attributes of objects. First three fields are mandatory.
The rest of the fields may be required depending on what type of
field is selected for datatype.
'''
subjecttype = models.ForeignKey(NID, related_name="subjecttype_of", verbose_name='subject type name')
applicable_nodetypes = models.CharField(max_length=2,choices=NODETYPE_CHOICES,default='OT', verbose_name='applicable nodetypes')
dataType = models.CharField(max_length=2, choices=FIELD_TYPE_CHOICES,default='01', verbose_name='data type of value')
verbose_name = models.CharField(max_length=500, null=True, blank=True, verbose_name='verbosename', help_text='verbose name')
null = models.NullBooleanField(verbose_name='Null', help_text='can the value be null?')
blank = models.NullBooleanField(verbose_name='Blank', help_text='can the form be left blank?')
help_text = models.CharField(max_length=500, null=True, blank=True, verbose_name='Help text', help_text='help text for the field')
max_digits = models.IntegerField(max_length=5, null=True, blank=True, verbose_name='Max digit', help_text='If you have selected Decimal Field for datatype, you have to specify the number of digits.')
decimal_places = models.IntegerField(max_length=2, null=True, blank=True, verbose_name='Decimal places', help_text='If you have selected Decimal Field for datatype, you have to specify the decimal places.')
auto_now = models.NullBooleanField(verbose_name='Auto now', null=True, blank=True, help_text='Use this if DateTime & Time Field was chosen above for datatype')
auto_now_add = models.NullBooleanField(verbose_name='Auto now add', null=True, blank=True, help_text='Use this if DateTime & Time Field was chosen above for datatype')
upload_to = models.CharField(max_length=500,verbose_name='Upload to', null=True, blank=True, help_text='Required for FileField and ImageField')
path=models.CharField(max_length=500,verbose_name='Path', null=True, blank=True, help_text='Required for FilePathField')
verify_exists=models.NullBooleanField(verbose_name='Verify exits', null=True, blank=True, help_text='Required for AttributeURLField')
min_length=models.IntegerField(max_length=10,null=True, blank=True, verbose_name='min length', help_text='minimum length')
required=models.NullBooleanField(verbose_name='required', null=True, blank=True, help_text='Use this for setting mandatory and optional fields')
label=models.CharField(max_length=500, null=True,blank=True,verbose_name='label',help_text='specify the "human-friendly" label')
unique=models.NullBooleanField(verbose_name='unique', null=True, blank=True, help_text='If True, this field must be unique throughout the table')
validators=models.ManyToManyField('self', verbose_name='validators',blank=True, null=True,help_text='A list of validators to run for this field')
default=models.CharField(max_length=500, null=True, blank=True, verbose_name='default', help_text='The default value for the field')
editable=models.NullBooleanField(verbose_name='required', null=True, blank=True, help_text='If False, the field will not be editable')
@property
def get_rendered_nbh(self):
"""
Returns the neighbourhood of the Attributetype
"""
history=[]
version_list=self.get_ssid
if version_list:
length=len(version_list)
history_ssid=version_list[length-1]
history_dict=self.version_info(history_ssid)
history_nbh_dict=ast.literal_eval(history_dict['nbhood'])
#ssid_current.append(history_ssid)
history=history_nbh_dict['history']
history.append(history_ssid)
else:
history.append(0)
nbh = {}
nbh['title'] = self.title
nbh['count_title'] = len(nbh['title'])
nbh['altnames'] = self.altnames
nbh['count_altnames'] = len(nbh['altnames'])
# nbh['plural'] = self.plural
# nbh['count_plural'] = len(nbh['plural'])
#get all MTs
member_of_dict = {}
for each in self.metatypes.all():
member_of_dict[each.title]= each.get_absolute_url()
nbh['member_of_metatypes']=member_of_dict
nbh['count_member_of_metatypes'] = len(nbh['member_of_metatypes'])
typeof={}
parent=self.parent_id
if parent:
obj=NID.objects.get(id=parent)
typeof[parent] = obj.ref.get_absolute_url()
nbh['type_of']=typeof
nbh['count_type_of'] = len(nbh['type_of'])
#get all subtypes
subtypes={}
for each in Nodetype.objects.filter(parent=self.id):
subtypes[each.title] =each.get_absolute_url()
nbh['contains_subtypes']=subtypes
nbh['count_contains_subtypes'] = len(nbh['contains_subtypes'])
# get all the objects inheriting this OT
contains_members_dict = {}
for each in self.member_objects.all():
contains_members_dict[each.title]= each.get_absolute_url()
nbh['contains_members'] = contains_members_dict
nbh['count_contains_members'] = len(nbh['contains_members'])
#get prior nodes
priornodes_dict = {}
for each in self.prior_nodes.all():
priornodes_dict[each.title]= each.get_absolute_url()
nbh['priornodes'] = priornodes_dict
nbh['count_priornodes'] = len(nbh['priornodes'])
#get posterior nodes
posteriornodes_dict = {}
for each in self.posterior_nodes.all():
posteriornodes_dict[each.title]= each.get_absolute_url()
nbh['posteriornodes'] = posteriornodes_dict
nbh['count_posteriornodes'] = len(nbh['posteriornodes'])
#get authors
author_dict = {}
for each in self.authors.all():
author_dict['User'] = each.get_absolute_url()
nbh['authors'] = author_dict
#get siblings
siblings={}
for each in self.get_siblings():
siblings[each.title]=each.get_absolute_url()
nbh['siblings']=siblings
nbh['count_siblings'] = len(nbh['siblings'])
#get Relations
relns={}
rellft={}
relrgt={}
if self.get_rendered_relations:
NTrelns=self.get_rendered_relations
for key,value in NTrelns.items():
if key=="rrelations":
relrgt={}
for rgtkey,rgtvalue in value.items():
relnvalue={}
if isinstance(rgtvalue,list):
for items in rgtvalue:
relnvalue[items]=items.get_absolute_url()
else:
relnvalue[rgtvalue]=rgtvalue.get_absolute_url()
relrgt[rgtkey]=relnvalue
else:
rellft={}
relns['left']=rellft
for lftkey,lftvalue in value.items():
relnvalue={}
if isinstance(lftvalue,list):
for items in lftvalue:
relnvalue[items]=items.get_absolute_url()
else:
relnvalue[lftvalue]=lftvalue.get_absolute_url()
rellft[lftkey]=relnvalue
nbh['relations']=relrgt
nbh['relations'].update(rellft)
nbh['count_relations'] = len(nbh['relations'])
#get Attributes
attributes =self.get_attributes
nbh['attributes']=attributes
nbh['count_attributes'] = len(nbh['attributes'])
#get ATs
attributetypes={}
for each in self.subjecttype_of.all():
attributetypes[each.title]=each.get_absolute_url()
nbh['ats']=attributetypes
#get RTs as leftroles and rightroles
leftroles = {}
for each in self.left_subjecttype_of.all():
leftroles[each.title]=each.get_absolute_url()
nbh['leftroles']=leftroles
nbh['count_leftroles'] = len(nbh['leftroles'])
rightroles = {}
for each in self.right_subjecttype_of.all():
rightroles[each.title]=each.get_absolute_url()
nbh['rightroles']=rightroles
nbh['count_rightroles'] = len(nbh['rightroles'])
nbh['history']=history
return nbh
def __unicode__(self):
displayname="AT: "+self.title
return displayname
@property
def getdataType(self):
at = 'attribute'+str(self.get_dataType_display())
at = at.lower()
return at
class Meta:
"""
attribute type's meta class
"""
verbose_name = _('attribute type')
verbose_name_plural = _('attribute types')
permissions = (('can_view_all', 'Can view all'),
('can_change_author', 'Can change author'), )
# Save for Attributetype
def save(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
super(Attributetype, self).save(*args, **kwargs) # Call the "real" save() method.
self.nbhood=self.get_rendered_nbh
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(Attributetype, self).save(*args, **kwargs) # Call the "real" save() method.
def save_revert_or_merge(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(Attributetype, self).save(*args, **kwargs) # Call the "real" save() method.
class Relation(Edge):
'''
Relations, instances of relationtypes
'''
left_subject_scope = models.CharField(max_length=50, verbose_name='subject scope or qualification', null=True, blank=True)
left_subject = models.ForeignKey(NID, related_name="left_subject_of", verbose_name='subject name')
relationtype_scope = models.CharField(max_length=50, verbose_name='relation scope or qualification', null=True, blank=True)
relationtype = models.ForeignKey(Relationtype, verbose_name='relation name')
right_subject_scope = models.CharField(max_length=50, verbose_name='object scope or qualification', null=True, blank=True)
right_subject = models.ForeignKey(NID, related_name="right_subject_of", verbose_name='object name')
def ApplicableNodeTypes_filter(self,choice):
nodeslist = []
if choice == 'ED':
nodeslist = Edge.objects.all()
if choice == 'OB':
nodeslist = Objects.objects.all()
if choice == 'ND':
nodeslist = Node.objects.all()
if choice == 'NT':
nodeslist = Nodetype.objects.all()
if choice == 'OT':
nodeslist = Objecttype.objects.all()
if choice == 'RT':
nodeslist = Relationtype.objects.all()
if choice == 'MT':
nodeslist = Metatype.objects.all()
if choice == 'AT':
nodeslist = Attributetype.objects.all()
if choice == 'RN':
nodeslist = Relation.objects.all()
if choice == 'AS':
nodeslist = Attribute.objects.all()
if choice == 'ST':
nodeslist = Systemtype.objects.all()
if choice == 'SY':
nodeslist = System.objects.all()
return nodeslist
class Meta:
unique_together = (('left_subject_scope','left_subject','relationtype_scope', 'relationtype', 'right_subject_scope','right_subject'),)
verbose_name = _('relation')
verbose_name_plural = _('relations')
permissions = (('can_view_all', 'Can view all'),
('can_change_author', 'Can change author'), )
def __unicode__(self):
displayname="RN: "+self.composed_sentence
return displayname
@property
def composed_sentence(self):
"composes the relation as a sentence in a triple format."
return u'%s %s %s %s %s %s' % (self.left_subject_scope, self.left_subject, self.relationtype_scope, self.relationtype, self.right_subject_scope, self.right_subject)
@property
def inversed_sentence(self):
"composes the inverse relation as a sentence in a triple format."
return u'%s %s %s %s %s' % (self.objectScope, self.right_subject, self.relationtype.inverse, self.left_subject_scope, self.left_subject )
@property
def key_value(self):
return dict({str(self.relationtype):str(self.right_subject)})
@property
def inverse_key_value(self):
return dict({str(self.relationtype.inverse):str(self.left_subject)})
@property
def relation_sentence(self):
"""Return the relations of the objecttypes"""
if self.relationtype:
# for relation in self.relationtype():
return u'%s %s %s' % (self.left_subject,self.relationtype,self.right_subject )
@property
def partial_composition(self):
'''
function that composes the right_subject and relation name, as in "x as a friend", "y as a sibling"
'''
return u'%s as a %s' % (self.right_subject, self.relationtype)
# Save for Relation
def save(self, *args, **kwargs):
"""
left_subject and right_subject should be saved after creating the relation
"""
self.nodemodel = self.__class__.__name__
self.nbhood=[]
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(Relation, self).save(*args, **kwargs) # Call the "real" save() method.
left_subject = self.left_subject
right_subject = self.right_subject
left_subject.ref.save()
right_subject.ref.save()
super(Relation, self).save(*args, **kwargs) # Call the "real" save() method.
class Attribute(Edge):
'''
Attribute value store for default datatype varchar. Subject can be any of the
nodetypes.
'''
subject_scope = models.CharField(max_length=50, verbose_name='subject scope or qualification', null=True, blank=True)
subject = models.ForeignKey(NID, related_name="subject_of", verbose_name='subject name')
attributetype_scope = models.CharField(max_length=50, verbose_name='property scope or qualification', null=True, blank=True)
attributetype = models.ForeignKey(Attributetype, verbose_name='property name')
value_scope = models.CharField(max_length=50, verbose_name='value scope or qualification', null=True, blank=True)
svalue = models.CharField(max_length=100, verbose_name='serialized value')
class Meta:
unique_together = (('subject_scope', 'subject', 'attributetype_scope', 'attributetype', 'value_scope', 'svalue'),)
verbose_name = _('attribute')
verbose_name_plural = _('attributes')
permissions = (('can_view_all', 'Can view all'),
('can_change_author', 'Can change author'), )
def subject_filter(self,attr):
"""
returns applicaable selection of nodes for selecting as subject
"""
subjecttype = attr.subjecttype
for each in Objecttype.objects.all():
if attr.subjecttype.id == each.id:
return each.get_members
def __unicode__(self):
displayname="AS: "+self.composed_attribution
return displayname
@property
def edge_node_dict(self):
'''
composes the attribution as a name:value pair sentence without the subject.
'''
return dict({str(self.attributetype_scope) + str(self.attributetype): str(self.value_scope)+ str(self.svalue)})
@property
def composed_sentence(self):
'''
composes the attribution as a sentence in a triple format.
'''
return u'%s %s has %s %s %s %s' % (self.subject_scope, self.subject, self.attributetype_scope, self.attributetype, self.value_scope, self.svalue)
@property
def composed_attribution(self):
'''
composes a name to the attribute
'''
return u'the %s of %s is %s' % (self.attributetype, self.subject, self.svalue)
@property
def partial_composition(self):
'''
function that composes the value and attribute name, as in "red as color", "4 as length"
'''
return u'%s as %s' % (self.svalue, self.attributetype)
def subject_filter(self,attr):
"""
returns applicable selection of nodes for selecting objects
"""
for each in Objecttype.objects.all():
if attr.subjecttype.id == each.id:
return each.get_members
# Save for Attribute
def save(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
self.nbhood=[]
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(Attribute, self).save(*args, **kwargs) # Call the "real" save() method.
subject=self.subject
subject.ref.save()
super(Attribute, self).save(*args, **kwargs) # Call the "real" save() method.
class AttributeCharField(Attribute):
value = models.CharField(max_length=100, verbose_name='string')
def __unicode__(self):
displayname="ACF: "+ self.title
return displayname
# @reversion.create_revision()
def save(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
self.nbhood=[]
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(AttributeCharField, self).save(*args, **kwargs) # Call the "real" save() method.
subject=self.subject
subject.ref.save()
super(AttributeCharField, self).save(*args, **kwargs) # Call the "real" save() method.
class AttributeTextField(Attribute):
value = models.TextField(verbose_name='text')
def __unicode__(self):
displayname="ATF: "+ self.title
return displayname
# @reversion.create_revision()
def save(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
self.nbhood=[]
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(AttributeTextField, self).save(*args, **kwargs) # Call the "real" save() method.
subject=self.subject
subject.ref.save()
super(AttributeTextField, self).save(*args, **kwargs) # Call the "real" save() method.
class AttributeIntegerField(Attribute):
value = models.IntegerField(max_length=100, verbose_name='Integer')
def __unicode__(self):
displayname="AIF: "+self.title
return displayname
# @reversion.create_revision()
def save(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
self.nbhood=[]
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(AttributeIntegerField, self).save(*args, **kwargs) # Call the "real" save() method.
subject=self.subject
subject.ref.save()
super(AttributeIntegerField, self).save(*args, **kwargs) # Call the "real" save() method.
class AttributeCommaSeparatedIntegerField(Attribute):
value = models.CommaSeparatedIntegerField(max_length=100, verbose_name='integers separated by comma')
def __unicode__(self):
displayname="ACSIF: "+self.title
return displayname
# @reversion.create_revision()
def save(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
self.nbhood=[]
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(AttributeCommaSeparatedIntegerField, self).save(*args, **kwargs) # Call the "real" save() method.
subject=self.subject
subject.ref.save()
super(AttributeCommaSeparatedIntegerField, self).save(*args, **kwargs) # Call the "real" save() method.
class AttributeBigIntegerField(Attribute):
value = models.BigIntegerField(max_length=100, verbose_name='big integer')
def __unicode__(self):
displayname="ABIF: "+self.title
return displayname
# @reversion.create_revision()
def save(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
self.nbhood=[]
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(AttributeBigIntegerField, self).save(*args, **kwargs) # Call the "real" save() method.
subject=self.subject
subject.ref.save()
super(AttributeBigIntegerField, self).save(*args, **kwargs) # Call the "real" save() method.
class AttributePositiveIntegerField(Attribute):
value = models.PositiveIntegerField(max_length=100, verbose_name='positive integer')
def __unicode__(self):
displayname="APIF: "+self.title
return displayname
# @reversion.create_revision()
def save(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
self.nbhood=[]
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(AttributePositiveIntegerField, self).save(*args, **kwargs) # Call the "real" save() method.
subject=self.subject
subject.ref.save()
super(AttributePositiveIntegerField, self).save(*args, **kwargs) # Call the "real" save() method.
class AttributeDecimalField(Attribute):
value = models.DecimalField(max_digits=3, decimal_places=2, verbose_name='decimal')
def __unicode__(self):
displayname="ADF: "+self.title
return displayname
def save(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
self.nbhood=[]
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(AttributeDecimalField, self).save(*args, **kwargs) # Call the "real" save() method.
subject=self.subject
subject.ref.save()
super(AttributeDecimalField, self).save(*args, **kwargs) # Call the "real" save() method.
class AttributeFloatField(Attribute):
value = models.FloatField(max_length=100, verbose_name='number as float')
def __unicode__(self):
displayname="AFF: "+self.title
return displayname
# @reversion.create_revision()
def save(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
self.nbhood=[]
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(AttributeFloatField, self).save(*args, **kwargs) # Call the "real" save() method.
subject=self.subject
subject.ref.save()
super(AttributeFloatField, self).save(*args, **kwargs) # Call the "real" save() method.
class AttributeBooleanField(Attribute):
value = models.BooleanField(verbose_name='boolean')
def __unicode__(self):
displayname="ABF: "+self.title
return displayname
def save(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
self.nbhood=[]
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(AttributeBooleanField, self).save(*args, **kwargs) # Call the "real" save() method.
subject=self.subject
subject.ref.save()
super(AttributeBooleanField, self).save(*args, **kwargs) # Call the "real" save() method.
class AttributeNullBooleanField(Attribute):
value = models.NullBooleanField(verbose_name='true false or unknown')
def __unicode__(self):
displayname="ANBF: "+self.title
return displayname
def save(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
self.nbhood=[]
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(AttributeNullBooleanField, self).save(*args, **kwargs) # Call the "real" save() method.
subject=self.subject
subject.ref.save()
super(AttributeNullBooleanField, self).save(*args, **kwargs) # Call the "real" save() method.
class AttributeDateField(Attribute):
value = models.DateField(max_length=100, verbose_name='date')
def __unicode__(self):
displayname="ADF: "+self.title
return displayname
def save(self, *args, **kwargs):
self.nodemodel=self.__class__.__name__
self.nbhood=[]
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(AttributeDateField, self).save(*args, **kwargs) # Call the "real" save() method.
subject=self.subject
subject.ref.save()
super(AttributeDateField, self).save(*args, **kwargs) # Call the "real" save() method.
class AttributeDateTimeField(Attribute):
value = models.DateTimeField(max_length=100, verbose_name='date time')
def __unicode__(self):
displayname="ADTF: "+self.title
return displayname
# @reversion.create_revision()
def save(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
self.nbhood=[]
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(AttributeDateTimeField, self).save(*args, **kwargs) # Call the "real" save() method.
subject=self.subject
subject.ref.save()
super(AttributeDateTimeField, self).save(*args, **kwargs) # Call the "real" save() method.
class AttributeTimeField(Attribute):
value = models.TimeField(max_length=100, verbose_name='time')
def __unicode__(self):
displayname="ATIF: "+self.title
return displayname
# @reversion.create_revision()
def save(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
self.nbhood=[]
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(AttributeTimeField, self).save(*args, **kwargs) # Call the "real" save() method.
subject=self.subject
subject.ref.save()
super(AttributeTimeField, self).save(*args, **kwargs) # Call the "real" save() method.
class AttributeEmailField(Attribute):
value = models.EmailField(max_length=100,verbose_name='value')
def __unicode__(self):
displayname="AEF: "+self.title
return displayname
# @reversion.create_revision()
def save(self, *args, **kwargs):
self.nodemodel=self.__class__.__name__
self.nbhood=[]
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(AttributeEmailField, self).save(*args, **kwargs) # Call the "real" save() method.
subject=self.subject
subject.ref.save()
super(AttributeEmailField, self).save(*args, **kwargs) # Call the "real" save() method.
class AttributeFileField(Attribute):
value = models.FileField(upload_to='media/'+UPLOAD_TO, verbose_name='file')
def __unicode__(self):
displayname="AFIF: "+self.title
return displayname
# @reversion.create_revision()
def save(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
self.nbhood=[]
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(AttributeFileField, self).save(*args, **kwargs) # Call the "real" save() method.
subject=self.subject
subject.ref.save()
super(AttributeFileField, self).save(*args, **kwargs) # Call the "real" save() method.
class AttributeFilePathField(Attribute):
value = models.FilePathField(verbose_name='path of file')
def __unicode__(self):
displayname="AFPF: "+self.title
return displayname
# @reversion.create_revision()
def save(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
self.nbhood=[]
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(AttributeFilePathField, self).save(*args, **kwargs) # Call the "real" save() method.
subject=self.subject
subject.ref.save()
super(AttributeFilePathField, self).save(*args, **kwargs) # Call the "real" save() method.
class AttributeImageField(Attribute):
value = models.ImageField(upload_to = UPLOAD_TO, verbose_name='image')
def __unicode__(self):
displayname="AIMF: "+self.title
return displayname
# @reversion.create_revision()
def save(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
self.nbhood=[]
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(AttributeImageField, self).save(*args, **kwargs) # Call the "real" save() method.
subject=self.subject
subject.ref.save()
super(AttributeImageField, self).save(*args, **kwargs) # Call the "real" save() method.
class AttributeURLField(Attribute):
value = models.URLField(max_length=100, verbose_name='url')
def __unicode__(self):
displayname="AURLF: "+self.title
return displayname
# @reversion.create_revision()
def save(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
self.nbhood=[]
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(AttributeURLField, self).save(*args, **kwargs) # Call the "real" save() method.
subject=self.subject
subject.ref.save()
super(AttributeURLField, self).save(*args, **kwargs) # Call the "real" save() method.
class AttributeIPAddressField(Attribute):
value = models.IPAddressField(max_length=100, verbose_name='ip address')
def __unicode__(self):
displayname="AIPF: "+self.title
return displayname
# @reversion.create_revision()
def save(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
self.nbhood=[]
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(AttributeIPAddressField, self).save(*args, **kwargs) # Call the "real" save() method.
subject=self.subject
subject.ref.save()
super(AttributeIPAddressField, self).save(*args, **kwargs) # Call the "real" save() method.
class Processtype(Nodetype):
"""
A kind of nodetype for defining processes or events or temporal
objects involving change.
"""
changing_attributetype_set = models.ManyToManyField(Attributetype, null=True, blank=True,
verbose_name=_('attribute set involved in the process'),
related_name=' changing_attributetype_set_of')
changing_relationtype_set = models.ManyToManyField(Relationtype, null=True, blank=True,
verbose_name=_('relation set involved in the process'),
related_name='changing_relationtype_set_of')
def __unicode__(self):
displayname="PT: "+self.title
return displayname
class Meta:
verbose_name = _('process type')
verbose_name_plural = _('process types')
permissions = (('can_view_all', 'Can view all'),
('can_change_author', 'Can change author'), )
# @reversion.create_revision()
def save(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
super(Processtype, self).save(*args, **kwargs) # Call the "real" save() method.
self.nbhood=self.get_rendered_nbh
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(Processtype, self).save(*args, **kwargs) # Call the "real" save() method.
class Systemtype(Nodetype):
"""
class to organize Systems
"""
nodetype_set = models.ManyToManyField(Nodetype, related_name="nodetype_set_of", verbose_name='Possible edges in the system',
blank=True, null=False)
relationtype_set = models.ManyToManyField(Relationtype, related_name="relationtype_set_of", verbose_name='Possible nodetypes in the system',
blank=True, null=False)
attributetype_set = models.ManyToManyField(Attributetype, related_name="attributetype_set_of", verbose_name='systems to be nested in the system',
blank=True, null=False)
metatype_set = models.ManyToManyField(Metatype, related_name="metatype_set_of", verbose_name='Possible edges in the system',
blank=True, null=False)
processtype_set = models.ManyToManyField(Processtype, related_name="processtype_set_of", verbose_name='Possible edges in the system',
blank=True, null=False)
author_set = models.ManyToManyField(User, related_name="author_set_of", verbose_name='Possible authors in the system',
blank=True, null=False)
def __unicode__(self):
displayname="ST: "+self.title
return displayname
class Meta:
verbose_name = _('system type')
verbose_name_plural = _('system types')
permissions = (('can_view_all', 'Can view all'),
('can_change_author', 'Can change author'), )
# @reversion.create_revision()
def save(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
self.nbhood=[]
super(Systemtype, self).save(*args, **kwargs) # Call the "real" save() method.
# self.nbhood=self.get_rendered_nbh
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(Systemtype, self).save(*args, **kwargs) # Call the "real" save() method.
class AttributeSpecification(Node):
"""
specifying an attribute by a subject to say for example:
population of India, color of a flower etc. These do not yeild a
proposition but a description, which can be used as a subject in
another sentence.
"""
attributetype = models.ForeignKey(Attributetype, verbose_name='property name')
subjects = models.ManyToManyField(NID, related_name="subjects_attrspec_of", verbose_name='subjects')
metatypes=models.ManyToManyField(Metatype,verbose_name=_('member of metatypes'),
related_name='member_attspecns',
blank=True, null=True)
@property
def composed_subject(self):
'''
composes a name to the attribute
'''
subjects = u''
for each in self.subjects.all():
subjects = subjects + each.title + ' '
return u'the %s of %s' % (self.attributetype, subjects)
def __unicode__(self):
displayname="ASN: "+self.composed_subject
return displayname
class Meta:
verbose_name = _('attribute specification')
permissions = (('can_view_all', 'Can view all'),
('can_change_author', 'Can change author'), )
# @reversion.create_revision()
def save(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
self.nbhood=[]
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(AttributeSpecification, self).save(*args, **kwargs) # Call the "real" save() method.
super(AttributeSpecification, self).save(*args, **kwargs) # Call the "real" save() method.
class RelationSpecification(Node):
"""
specifying a relation with a subject
"""
relationtype = models.ForeignKey(Relationtype, verbose_name='relation name')
subjects = models.ManyToManyField(NID, related_name="subjects_in_relspec", verbose_name='subjects')
metatypes=models.ManyToManyField(Metatype,verbose_name=_('member of metatypes'),
related_name='member_relnspecns',
blank=True, null=True)
@property
def composed_subject(self):
'''
composing an expression with relation name and subject
'''
subjects = u''
for each in self.subjects.all():
subjects = subjects + each.title + ' '
return u'the %s of %s' % (self.relationtype, subjects)
def __unicode__(self):
dispalyname="RSN: "+ self.composed_subject
return displayname
class Meta:
verbose_name = _('relation specification')
permissions = (('can_view_all', 'Can view all'),
('can_change_author', 'Can change author'), )
# @reversion.create_revision()
def save(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
self.nbhood=[]
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(RelationSpecification, self).save(*args, **kwargs) # Call the "real" save() method.
super(RelationSpecification, self).save(*args, **kwargs) # Call the "real" save() method.
class NodeSpecification(Node):
"""
A node specified (described) by its relations or attributes or both.
"""
subject = models.ForeignKey(Node, related_name="subject_nodespec", verbose_name='subject name')
relations = models.ManyToManyField(Relation, related_name="relations_in_nodespec", verbose_name='relations used to specify the domain')
attributes = models.ManyToManyField(Attribute, related_name="attributes_in_nodespec", verbose_name='attributes used to specify the domain')
metatypes=models.ManyToManyField(Metatype,verbose_name=_('member of metatypes'),
related_name='member_nodespecns',
blank=True, null=True)
@property
def composed_subject(self):
'''
composing an expression subject and relations
'''
relations = u''
for each in self.relations.all():
relations = relations + each.partial_composition + ', '
attributes = u''
for each in self.attributes.all():
attributes = attributes + each.partial_composition + ', '
return u'the %s with %s, %s' % (self.subject, self.relations, self.attributes)
def __unicode__(self):
displayname="NSN: "+ self.composed_subject
return displayname
class Meta:
verbose_name = _('Node specification')
permissions = (('can_view_all', 'Can view all'),
('can_change_author', 'Can change author'), )
# @reversion.create_revision()
def save(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
self.nbhood=[]
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(NodeSpecification, self).save(*args, **kwargs) # Call the "real" save() method.
super(NodeSpecification, self).save(*args, **kwargs) # Call the "real" save() method.
class Expression(Node):
"""
Expression constructor
"""
left_term = models.ForeignKey(NID, related_name="left_term_of", verbose_name='left term name')
relationtype = models.ForeignKey(Relationtype, verbose_name='relation name')
right_term = models.ForeignKey(NID, related_name="right_term_of", verbose_name='right term name')
metatypes=models.ManyToManyField(Metatype,verbose_name=_('member of metatypes'),
related_name='member_exprn',
blank=True, null=True)
def __unicode__(self):
displayname="EXPN: "+self.composed_sentence
return displayname
@property
def composed_sentence(self):
"composes the relation as a sentence in a triple format."
return u'%s %s %s' % (self.left_term, self.relationtype, self.right_term)
class Meta:
unique_together = (('left_term','relationtype','right_term'),)
verbose_name = _('expression')
verbose_name_plural = _('expressions')
permissions = (('can_view_all', 'Can view all'),
('can_change_author', 'Can change author'), )
# @reversion.create_revision()
def save(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
self.nbhood=[]
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(Expression, self).save(*args, **kwargs) # Call the "real" save() method.
super(Expression, self).save(*args, **kwargs) # Call the "real" save() method.
class Union(Node):
"""
union of two classes
"""
nodetypes = models.ManyToManyField(Nodetype, related_name = 'union_of', verbose_name='node types for union')
metatypes=models.ManyToManyField(Metatype,verbose_name=_('member of metatypes'),
related_name='member_unions',
blank=True, null=True)
def __unicode__(self):
displayname="UN: "+ self.title
return displayname
@property
def composed_sentence(self):
"composes the relation as a sentence in a triple format."
return u'%s %s' % (self.nodetypes, self.metatypes)
# @reversion.create_revision()
def save(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
self.nbhood=[]
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(Union, self).save(*args, **kwargs) # Call the "real" save() method.
super(Union, self).save(*args, **kwargs) # Call the "real" save() method.
class Complement(Node):
"""
complement of a class
"""
nodetypes = models.ManyToManyField(Nodetype, related_name = 'complement_of', verbose_name='complementary nodes')
metatypes=models.ManyToManyField(Metatype,related_name='meta_complement',verbose_name=_('Metanodes'),
blank=True, null= True)
@property
def composed_subject(self):
return u'Not of %s' % (self.nodetypes)
# @property
# def composed_sentence(self):
# "composes the complement as a sentence. "
# return u'Not of %s %s' % (self.nodetypes,self.metatypes)
def __unicode__(self):
displayname="CMP: "+self.title
return displayname
# @reversion.create_revision()
def save(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
self.nbhood=[]
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(Complement, self).save(*args, **kwargs) # Call the "real" save() method.
super(Complement, self).save(*args, **kwargs) # Call the "real" save() method.
class Intersection(Node):
"""
Intersection of classes
"""
nodetypes = models.ManyToManyField(Nodetype, related_name = 'intersection_of', verbose_name='intersection of classes')
metatypes=models.ManyToManyField(Metatype,verbose_name=_('member of metatypes'),
related_name='member_intersectn',
blank=True, null=True)
def __unicode__(self):
displayname="INTSN: "+self.title
return displayname
@property
def composed_subject(self):
return u'And of %s' % (self.nodetypes)
# @reversion.create_revision()
def save(self, *args, **kwargs):
self.nodemodel = self.__class__.__name__
self.nbhood=[]
if GSTUDIO_VERSIONING:
with reversion.create_revision():
super(Intersection, self).save(*args, **kwargs) # Call the "real" save() method.
super(Intersection, self).save(*args, **kwargs) # Call the "real" save() method.
if GSTUDIO_VERSIONING == True:
reversion.register(NID)
if not reversion.is_registered(Systemtype):
reversion.register(Systemtype,follow=["nodetype_ptr"] )
if not reversion.is_registered(Objecttype):
reversion.register(Objecttype , follow=["nodetype_ptr"])
if not reversion.is_registered(Node):
reversion.register(Node , follow=["nid_ptr"])
if not reversion.is_registered(Edge):
reversion.register(Edge , follow=["nid_ptr"])
if not reversion.is_registered(Processtype):
reversion.register(Processtype, follow=["nodetype_ptr","changing_attributetype_set", "changing_relationtype_set"])
if not reversion.is_registered(Nodetype):
reversion.register(Nodetype, follow=["node_ptr","parent", "metatypes","prior_nodes", "posterior_nodes"])
if not reversion.is_registered(Metatype):
reversion.register(Metatype, follow=["node_ptr","parent"])
if not reversion.is_registered(Relationtype):
reversion.register(Relationtype, follow=["nodetype_ptr","left_subjecttype", "right_subjecttype"])
if not reversion.is_registered(Attributetype):
reversion.register(Attributetype, follow=["nodetype_ptr","subjecttype"])
if not reversion.is_registered(Attribute):
reversion.register(Attribute, follow=["subject", "attributetype"])
if not reversion.is_registered(Relation):
reversion.register(Relation, follow=["left_subject", "right_subject", "relationtype"])
moderator.register(Nodetype, NodetypeCommentModerator)
mptt.register(Metatype, order_insertion_by=['title'])
mptt.register(Nodetype, order_insertion_by=['title'])
mptt.register(Objecttype, order_insertion_by=['title'])
mptt.register(Relationtype, order_insertion_by=['title'])
mptt.register(Attributetype, order_insertion_by=['title'])
mptt.register(Systemtype, order_insertion_by=['title'])
mptt.register(Processtype, order_insertion_by=['title'])
post_save.connect(ping_directories_handler, sender=Nodetype,
dispatch_uid='gstudio.nodetype.post_save.ping_directories')
post_save.connect(ping_external_urls_handler, sender=Nodetype,
dispatch_uid='gstudio.nodetype.post_save.ping_external_urls')
class Peer(User):
"""Subclass for non-human users"""
def __unicode__(self):
return self.ip
ip = models.IPAddressField("Peer's IP address")
pkey = models.CharField(("Peer's public-key"), max_length=255)