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''' -- imports from python libraries -- '''
# import os -- Keep such imports here
import json
import multiprocessing as mp
from difflib import HtmlDiff
''' -- imports from installed packages -- '''
from django.contrib.auth.decorators import login_required
from django.contrib.auth.models import User
from django.http import HttpResponseRedirect
from django.http import HttpResponse
from django.core.urlresolvers import reverse
from django.shortcuts import render_to_response, render
from django.template import RequestContext
from django.template.defaultfilters import slugify
from django.utils.translation import ugettext
try:
from bson import ObjectId
except ImportError: # old pymongo
from pymongo.objectid import ObjectId
''' -- imports from application folders/files -- '''
from gnowsys_ndf.settings import LANGUAGES
from gnowsys_ndf.settings import GAPPS
from gnowsys_ndf.ndf.models import Node, GSystem, Triple
from gnowsys_ndf.ndf.models import node_collection, triple_collection
from gnowsys_ndf.ndf.models import HistoryManager
from gnowsys_ndf.ndf.rcslib import RCS
from gnowsys_ndf.ndf.org2any import org2html
from gnowsys_ndf.ndf.views.methods import get_node_common_fields, get_translate_common_fields,get_page,get_resource_type,diff_string,get_node_metadata,create_grelation_list,get_execution_time,parse_data
from gnowsys_ndf.ndf.management.commands.data_entry import create_gattribute
from gnowsys_ndf.ndf.views.html_diff import htmldiff
from gnowsys_ndf.ndf.views.methods import get_versioned_page, get_page, get_resource_type, diff_string
from gnowsys_ndf.ndf.views.methods import create_gattribute, create_grelation
from gnowsys_ndf.ndf.templatetags.ndf_tags import group_type_info
from gnowsys_ndf.mobwrite.diff_match_patch import diff_match_patch
#######################################################################################################################################
gst_page = node_collection.one({'_type': 'GSystemType', 'name': GAPPS[0]})
history_manager = HistoryManager()
rcs = RCS()
app = gst_page
#######################################################################################################################################
# VIEWS DEFINED FOR GAPP -- 'PAGE'
#######################################################################################################################################
@get_execution_time
def page(request, group_id, app_id=None):
"""Renders a list of all 'Page-type-GSystems' available within the database.
"""
ins_objectid = ObjectId()
if ins_objectid.is_valid(group_id) is False :
group_ins = node_collection.find_one({'_type': "Group", "name": group_id})
auth = node_collection.one({'_type': 'Author', 'name': unicode(request.user.username) })
if group_ins:
group_id = str(group_ins._id)
print group_id
else :
auth = node_collection.one({'_type': 'Author', 'name': unicode(request.user.username) })
if auth :
group_id = str(auth._id)
else :
pass
if app_id is None:
app_ins = node_collection.find_one({'_type': "GSystemType", "name": "Page"})
if app_ins:
app_id = str(app_ins._id)
content=[]
version=[]
con=[]
group_object = node_collection.one({'_id': ObjectId(group_id)})
# Code for user shelf
shelves = []
shelf_list = {}
auth = node_collection.one({'_type': 'Author', 'name': unicode(request.user.username) })
# if auth:
# has_shelf_RT = node_collection.one({'_type': 'RelationType', 'name': u'has_shelf' })
# dbref_has_shelf = has_shelf_RT.get_dbref()
# shelf = triple_collection.find({'_type': 'GRelation', 'subject': ObjectId(auth._id), 'relation_type.$id': has_shelf_RT._id})
# shelf_list = {}
# if shelf:
# for each in shelf:
# shelf_name = node_collection.one({'_id': ObjectId(each.right_subject)})
# shelves.append(shelf_name)
# shelf_list[shelf_name.name] = []
# for ID in shelf_name.collection_set:
# shelf_item = node_collection.one({'_id': ObjectId(ID) })
# shelf_list[shelf_name.name].append(shelf_item.name)
# else:
# shelves = []
# End of user shelf
if request.method == "POST":
title = gst_page.name
search_field = request.POST['search_field']
page_nodes = node_collection.find({
'member_of': {'$all': [ObjectId(app_id)]},
'$or': [
{'$and': [
{'name': {'$regex': search_field, '$options': 'i'}},
{'$or': [
{'access_policy': u"PUBLIC"},
{'$and': [{'access_policy': u"PRIVATE"}, {'created_by': request.user.id}]}
]
}
]
},
{'$and': [
{'tags': {'$regex':search_field, '$options': 'i'}},
{'$or': [
{'access_policy': u"PUBLIC"},
{'$and': [{'access_policy': u"PRIVATE"}, {'created_by': request.user.id}]}
]
}
]
}
],
'group_set': {'$all': [ObjectId(group_id)]},
'status': {'$nin': ['HIDDEN']}
}).sort('last_update', -1)
return render_to_response("ndf/page_list.html",
{'title': title,
'appId':app._id,'shelf_list': shelf_list,'shelves': shelves,
'searching': True, 'query': search_field,
'page_nodes': page_nodes, 'groupid':group_id, 'group_id':group_id
},
context_instance=RequestContext(request)
)
elif gst_page._id == ObjectId(app_id):
# Page list view
# code for moderated Groups
group_type = node_collection.one({'_id': ObjectId(group_id)})
group_info=group_type_info(group_id)
title = gst_page.name
if group_info == "Moderated":
title = gst_page.name
node=group_type.prior_node[0]
page_nodes = node_collection.find({'member_of': {'$all': [ObjectId(app_id)]},
'group_set': {'$all': [ObjectId(node)]},
}).sort('last_update', -1)
return render_to_response("ndf/page_list.html",
{'title': title,
'appId':app._id,'shelf_list': shelf_list,'shelves': shelves,
'page_nodes': page_nodes, 'groupid':group_id, 'group_id':group_id
},
context_instance=RequestContext(request))
elif group_info == "BaseModerated":
#code for parent Groups
node = node_collection.find({'member_of': {'$all': [ObjectId(app_id)]},
'group_set': {'$all': [ObjectId(group_id)]},
'status': {'$nin': ['HIDDEN']}
}).sort('last_update', -1)
if node is None:
node = node_collection.find({'member_of':ObjectId(app_id)})
#a temp. variable which stores the lookup for append method
content_append_temp=content.append
for nodes in node:
node,ver=get_versioned_page(nodes)
content_append_temp(node)
# rcs content ends here
return render_to_response("ndf/page_list.html",
{'title': title,
'appId':app._id,
'shelf_list': shelf_list,'shelves': shelves,
'page_nodes':content,
'groupid':group_id,
'group_id':group_id
},
context_instance=RequestContext(request)
)
elif group_info == "PUBLIC" or group_info == "PRIVATE" or group_info is None:
"""
Below query returns only those documents:
(a) which are pages,
(b) which belongs to given group,
(c) which has status either as DRAFT or PUBLISHED, and
(d) which has access_policy either as PUBLIC or if PRIVATE then it's created_by must be the logged-in user
"""
page_nodes = node_collection.find({'member_of': {'$all': [ObjectId(app_id)]},
'group_set': {'$all': [ObjectId(group_id)]},
'$or': [
{'access_policy': u"PUBLIC"},
{'$and': [
{'access_policy': u"PRIVATE"},
{'created_by': request.user.id}
]
}
],
'status': {'$nin': ['HIDDEN']}
}).sort('last_update', -1)
# content =[]
# for nodes in page_nodes:
# node,ver=get_page(request,nodes)
# if node != 'None':
# content.append(node)
return render_to_response("ndf/page_list.html",
{'title': title,
'appId':app._id,
'shelf_list': shelf_list,'shelves': shelves,
'page_nodes': page_nodes,
'groupid':group_id,
'group_id':group_id
},
context_instance=RequestContext(request))
else:
# Page Single instance view
Group_node = node_collection.one({"_id": ObjectId(group_id)})
if Group_node.prior_node:
page_node = node_collection.one({"_id": ObjectId(app_id)})
else:
node = node_collection.one({"_id": ObjectId(app_id)})
if Group_node.edit_policy == "EDITABLE_NON_MODERATED" or Group_node.edit_policy is None or Group_node.edit_policy == "NON_EDITABLE":
page_node,ver=get_page(request,node)
else:
#else part is kept for time being until all the groups are implemented
if node.status == u"DRAFT":
page_node,ver=get_versioned_page(node)
elif node.status == u"PUBLISHED":
page_node = node
annotations = json.dumps(page_node.annotations)
page_node.get_neighbourhood(page_node.member_of)
return render_to_response('ndf/page_details.html',
{ 'node': page_node,
'appId':app._id,
'group_id': group_id,
'shelf_list': shelf_list,
'annotations': annotations,
'shelves': shelves,
'groupid':group_id
},
context_instance = RequestContext(request)
)
@login_required
@get_execution_time
def create_edit_page(request, group_id, node_id=None):
"""Creates/Modifies details about the given quiz-item.
"""
ins_objectid = ObjectId()
if ins_objectid.is_valid(group_id) is False :
group_ins = node_collection.find_one({'_type': "Group", "name": group_id})
auth = node_collection.one({'_type': 'Author', 'name': unicode(request.user.username) })
if group_ins:
group_id = str(group_ins._id)
else :
auth = node_collection.one({'_type': 'Author', 'name': unicode(request.user.username) })
if auth :
group_id = str(auth._id)
else :
pass
context_variables = { 'title': gst_page.name,
'group_id': group_id,
'groupid': group_id
}
available_nodes = node_collection.find({'_type': u'GSystem', 'member_of': ObjectId(gst_page._id),'group_set': ObjectId(group_id) })
nodes_list = []
# for each in available_nodes:
# nodes_list.append(str((each.name).strip().lower()))
#loop replaced by a list comprehension
node_list=[str((each.name).strip().lower()) for each in available_nodes]
if node_id:
page_node = node_collection.one({'_type': u'GSystem', '_id': ObjectId(node_id)})
else:
page_node = node_collection.collection.GSystem()
if request.method == "POST":
# get_node_common_fields(request, page_node, group_id, gst_page)
page_node.save(is_changed=get_node_common_fields(request, page_node, group_id, gst_page))
# To fill the metadata info while creating and editing page node
metadata = request.POST.get("metadata_info", '')
if metadata:
# Only while metadata editing
if metadata == "metadata":
if page_node:
get_node_metadata(request,page_node)
# End of filling metadata
return HttpResponseRedirect(reverse('page_details', kwargs={'group_id': group_id, 'app_id': page_node._id }))
else:
if node_id:
page_node,ver=get_page(request,page_node)
page_node.get_neighbourhood(page_node.member_of)
context_variables['node'] = page_node
context_variables['groupid']=group_id
context_variables['group_id']=group_id
context_variables['nodes_list'] = json.dumps(nodes_list)
return render_to_response("ndf/page_create_edit.html",
context_variables,
context_instance=RequestContext(request)
)
@login_required
@get_execution_time
def delete_page(request, group_id, node_id):
"""Change the status to Hidden.
Just hide the page from users!
"""
ins_objectid = ObjectId()
if ins_objectid.is_valid(group_id) is False :
group_ins = node_collection.find_one({'_type': "Group","name": group_id})
auth = node_collection.one({'_type': 'Author', 'name': unicode(request.user.username) })
if group_ins:
group_id = str(group_ins._id)
else :
auth = node_collection.one({'_type': 'Author', 'name': unicode(request.user.username) })
if auth :
group_id = str(auth._id)
else :
pass
op = node_collection.collection.update({'_id': ObjectId(node_id)}, {'$set': {'status': u"HIDDEN"}})
return HttpResponseRedirect(reverse('page', kwargs={'group_id': group_id}))
@get_execution_time
def translate_node(request,group_id,node_id=None):
""" translate the node content"""
ins_objectid = ObjectId()
if ins_objectid.is_valid(group_id) is False :
group_ins = node_collection.find_one({'_type': "Group","name": group_id})
auth = node_collection.one({'_type': 'Author', 'name': unicode(request.user.username) })
if group_ins:
group_id = str(group_ins._id)
else :
auth = node_collection.one({'_type': 'Author', 'name': unicode(request.user.username) })
if auth :
group_id = str(auth._id)
else :
pass
context_variables = { 'title': gst_page.name,
'group_id': group_id,
'groupid': group_id
}
if request.method == "POST":
get_type=get_resource_type(request, node_id)
page_node = eval("node_collection.collection"+"."+ get_type)()
get_translate_common_fields(request, get_type,page_node, group_id, gst_page,node_id)
page_node.save()
# add triple to the GRelation
# then append this ObjectId of GRelation instance in respective subject and object Nodes' relation_set field.
relation_type = node_collection.one({'_type': 'RelationType', 'name': 'translation_of'})
gr_node = create_grelation(ObjectId(node_id), relation_type, page_node._id)
# grelation = node_collection.collection.GRelation()
# grelation.relation_type=relation_type
# grelation.subject=ObjectId(node_id)
# grelation.right_subject=page_node._id
# grelation.name=u""
# grelation.save()
return HttpResponseRedirect(reverse('page_details', kwargs={'group_id': group_id, 'app_id': page_node._id}))
node = node_collection.one({"_id": ObjectId(node_id)})
fp = history_manager.get_file_path(node)
# Retrieve rcs-file for a given version-number
rcs.checkout(fp)
# Copy content from rcs-version-file
data = None
with open(fp, 'r') as sf:
data = sf.read()
# Used json.loads(x) -- to covert string to dictionary object
# If want to use key from this converted dictionay, use array notation because dot notation doesn't works!
data = json.loads(data)
# Remove retrieved rcs-file belonging to the given version-number
rcs.checkin(fp)
content = data
node_details=[]
for k,v in content.items():
node_name = content['name']
node_content_org=content['content_org']
node_tags=content['tags']
return render_to_response("ndf/translation_page.html",
{'content': content,
'appId':app._id,
'node':node,
'node_name':node_name,
'groupid':group_id,
'group_id':group_id
},
context_instance = RequestContext(request)
)
@get_execution_time
def publish_page(request,group_id,node):
ins_objectid = ObjectId()
if ins_objectid.is_valid(group_id) is False :
group_ins = node_collection.find_one({'_type': "Group", "name": group_id})
auth = node_collection.one({'_type': 'Author', 'name': unicode(request.user.username) })
if group_ins:
group_id = str(group_ins._id)
else :
auth = node_collection.one({'_type': 'Author', 'name': unicode(request.user.username) })
if auth :
group_id = str(auth._id)
else :
pass
node = node_collection.one({'_id': ObjectId(node)})
group = node_collection.one({'_id': ObjectId(group_id)})
if group.post_node:
node.status=unicode("PUBLISHED")
node.save('UnderModeration')
else:
page_node,v=get_page(request,node)
node.content = unicode(page_node.content)
node.content_org = unicode(page_node.content_org)
node.status = unicode("PUBLISHED")
node.modified_by = int(request.user.id)
node.save()
#no need to use this section as seprate view is created for group publish
#if node._type == 'Group':
# return HttpResponseRedirect(reverse('groupchange', kwargs={'group_id': group_id}))
if 'Quiz' in node.member_of_names_list or 'QuizItem' in node.member_of_names_list:
return HttpResponseRedirect(reverse('quiz_details', kwargs={'group_id': group_id, 'app_id': node._id}))
return HttpResponseRedirect(reverse('page_details', kwargs={'group_id': group_id, 'app_id': node._id}))
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