Autocomplete tagging functionality

1 files changed, 207 insertions, 178 deletions

diff --git a/testapp/exam/views.py b/testapp/exam/views.py
index a529983..325d0aa 100644
--- a/testapp/exam/views.py
+++ b/testapp/exam/views.py
@@ -21,7 +21,6 @@ from settings import URL_ROOT
 # The directory where user data can be saved.
 OUTPUT_DIR = abspath(join(dirname(__file__), pardir, 'output'))
 
-
 def my_redirect(url):
     """An overridden redirect to deal with URL_ROOT-ing.  See settings.py 
     for details."""
@@ -36,7 +35,6 @@ def my_render_to_response(template, context=None, **kwargs):
         context['URL_ROOT'] = URL_ROOT
     return render_to_response(template, context, **kwargs)        
 
-
 def gen_key(no_of_chars):
     """Generate a random key of the number of characters."""
     allowed_chars = string.digits+string.uppercase
@@ -44,10 +42,11 @@ def gen_key(no_of_chars):
     
 def get_user_dir(user):
     """Return the output directory for the user."""
+
     user_dir = join(OUTPUT_DIR, str(user.username))
     if not exists(user_dir):
         os.mkdir(user_dir)
-        # Make it rwx by others.
+    # Make it rwx by others.
         os.chmod(user_dir, stat.S_IROTH | stat.S_IWOTH | stat.S_IXOTH \
                 | stat.S_IRUSR | stat.S_IWUSR | stat.S_IXUSR \
                 | stat.S_IRGRP | stat.S_IWGRP | stat.S_IXGRP)
@@ -58,8 +57,8 @@ def index(request):
     """
     user = request.user
     if user.is_authenticated():
-	if user.groups.filter(name='moderator').count() > 0:
-	    return my_redirect('/exam/manage/')
+    	if user.groups.filter(name='moderator').count() > 0:
+            return my_redirect('/exam/manage/')
         return my_redirect("/exam/start/")
 
     return my_redirect("/exam/login/")
@@ -81,7 +80,7 @@ def user_register(request):
             new_user = authenticate(username = u_name, password = pwd)
             login(request, new_user)
             return my_redirect("/exam/quizlist/")
-                
+        
         else:
             return my_render_to_response('exam/register.html',
                 {'form':form},
@@ -93,108 +92,132 @@ def user_register(request):
                 context_instance=RequestContext(request))
 
 def edit_quiz(request):
-   """Edit the list of quizzes seleted by the user for editing."""
+    """Edit the list of quizzes seleted by the user for editing."""
 
-   user = request.user
-   if not user.is_authenticated() or user.groups.filter(name='moderator').count() == 0 :
-       raise Http404('You are not allowed to view this page!')
+    user = request.user
+    if not user.is_authenticated() or user.groups.filter(name='moderator').count() == 0:
+        raise Http404('You are not allowed to view this page!')
 
-   start_date = request.POST.getlist('start_date')
-   duration = request.POST.getlist('duration')
-   active = request.POST.getlist('active')
-   description = request.POST.getlist('description')
-   
-   j = 0
-   for i in quizlist:
-       quiz = Quiz.objects.get(id=i)
-       quiz.start_date = start_date[j]
-       quiz.duration = duration[j]
-       quiz.active = active[j]
-       quiz.description = description[j]
-       quiz.save()
-       j += 1
-   return my_redirect("/exam/manage/showquiz/")
+    start_date = request.POST.getlist('start_date')
+    duration = request.POST.getlist('duration')
+    active = request.POST.getlist('active')
+    description = request.POST.getlist('description')
+
+    j = 0
+    for i in quizlist:
+        quiz = Quiz.objects.get(id=i)
+        quiz.start_date = start_date[j]
+        quiz.duration = duration[j]
+        quiz.active = active[j]
+        quiz.description = description[j]
+        quiz.save()
+        j += 1
+    return my_redirect("/exam/manage/showquiz/")
 
 def edit_question(request):
-   """Edit the list of quizzes seleted by the user for editing."""
-   user = request.user
-   if not user.is_authenticated() or user.groups.filter(name='moderator').count() == 0 :
-       raise Http404('You are not allowed to view this page!')
-
-   summary = request.POST.getlist('summary')
-   description = request.POST.getlist('description')
-   points = request.POST.getlist('points')
-   test = request.POST.getlist('test')
-   options = request.POST.getlist('options')
-   type = request.POST.getlist('type')
-   active = request.POST.getlist('active')
-   j = 0
-   for id_list in editquestionlist:
-       question = Question.objects.get(id=id_list)
-       question.summary = summary[j]
-       question.description = description[j]
-       question.points = points[j]
-       question.test = test[j]
-       question.options = options[j]
-       question.type = type[j]
-       question.active = active[j]
-       question.save()
-       j += 1
-   return my_redirect("/exam/manage/questions")
+    """Edit the list of questions seleted by the user for editing."""
+    user = request.user
+    if not user.is_authenticated() or user.groups.filter(name='moderator').count() == 0 :
+        raise Http404('You are not allowed to view this page!')
+
+    summary = request.POST.getlist('summary')
+    description = request.POST.getlist('description')
+    points = request.POST.getlist('points')
+    test = request.POST.getlist('test')
+    options = request.POST.getlist('options')
+    type = request.POST.getlist('type')
+    active = request.POST.getlist('active')
+    tags = request.POST.getlist('tags')
+    j = 0
+    for id_list in editquestionlist:
+        question = Question.objects.get(id=id_list)
+        question.summary = summary[j]
+        question.description = description[j]
+        question.points = points[j]
+        question.test = test[j]
+        question.options = options[j]
+        question.type = type[j]
+        edit_tags=tags[j]
+        question.active = active[j]
+        question.save()
+        for tag in question.tags.all():
+            question.tags.remove(tag)
+        tags_split = edit_tags.split(',')
+        for i in range(0,len(tags_split)-1):
+            tag = tags_split[i].strip()
+            question.tags.add(tag)
+        j += 1
+    return my_redirect("/exam/manage/questions")
    
 
 def add_question(request,question_id=None):
     """To add a new question in the database. Create a new question and store it."""
-
     user = request.user
     if not user.is_authenticated() or user.groups.filter(name='moderator').count() == 0 :
-	raise Http404('You are not allowed to view this page!')
+        raise Http404('You are not allowed to view this page!')
     if request.method == "POST":
-	form = QuestionForm(request.POST)
+        form = QuestionForm(request.POST)
         if form.is_valid():
             data = form.cleaned_data
-   	    if question_id == None:
+            if question_id == None:
                 form.save()
                 question = Question.objects.order_by("-id")[0]
-                question.tags.add(form['tags'].data)
-		return my_redirect("/exam/manage/questions")
-	    else:
-		d = Question.objects.get(id=question_id)
-		d.summary = form['summary'].data
-		d.description = form['description'].data
-		d.points = form['points'].data
-		d.test = form['test'].data
-		d.options = form['options'].data
-		d.type = form['type'].data
-		d.active = form['active'].data
-		d.save()
-	        return my_redirect("/exam/manage/questions")
+                tags = form['tags'].data.split(',')
+                for i in range(0,len(tags)-1):
+		            tag = tags[i].strip()
+        		    question.tags.add(tag)
+                return my_redirect("/exam/manage/questions")
+	        
+            else:
+                d = Question.objects.get(id=question_id)
+                d.summary = form['summary'].data
+                d.description = form['description'].data
+                d.points = form['points'].data
+                d.test = form['test'].data
+                d.options = form['options'].data
+                d.type = form['type'].data
+                d.active = form['active'].data
+                d.save()
+                question = Question.objects.get(id=question_id)
+                for tag in question.tags.all():
+                    question.tags.remove(tag)
+                tags = form['tags'].data.split(',')
+            	for i in range(0,len(tags)-1):
+    	            tag = tags[i].strip()
+    	            question.tags.add(tag)
+                return my_redirect("/exam/manage/questions")
                 
         else:
             return my_render_to_response('exam/add_question.html',
                 {'form':form},
                 context_instance=RequestContext(request))
     else:
-	if question_id == None:
+    	if question_id == None:
             form = QuestionForm()
             return my_render_to_response('exam/add_question.html',
                 {'form':form},
                 context_instance=RequestContext(request))
-	else:
+    	else:
 	    
-	    d = Question.objects.get(id=question_id)
-	    form = QuestionForm()
-	    form.initial['summary']= d.summary
-	    form.initial['description'] = d.description
-	    form.initial['points']= d.points
-	    form.initial['test'] = d.test
-	    form.initial['options'] = d.options
-	    form.initial['type'] = d.type
-	    form.initial['active'] = d.active
-		
-	    return my_render_to_response('exam/add_question.html',
-                {'form':form},
-                context_instance=RequestContext(request))	
+    	    d = Question.objects.get(id=question_id)
+    	    form = QuestionForm()
+    	    form.initial['summary']= d.summary
+    	    form.initial['description'] = d.description
+    	    form.initial['points']= d.points
+    	    form.initial['test'] = d.test
+    	    form.initial['options'] = d.options
+    	    form.initial['type'] = d.type
+    	    form.initial['active'] = d.active
+            form_tags = d.tags.all()
+            form_tags_split = form_tags.values('name')
+            initial_tags = ""
+            
+            for tag in form_tags_split:
+                initial_tags = initial_tags + str(tag['name']).strip() + ","
+            if (initial_tags == ","):
+                initial_tags = ""
+            form.initial['tags']=initial_tags
+            return my_render_to_response('exam/add_question.html',{'form':form},context_instance=RequestContext(request))	
 
 
 def add_quiz(request,quiz_id=None):
@@ -202,54 +225,55 @@ def add_quiz(request,quiz_id=None):
 
     user = request.user
     if not user.is_authenticated() or user.groups.filter(name='moderator').count() == 0 :
-	raise Http404('You are not allowed to view this page!')
+        raise Http404('You are not allowed to view this page!')
     if request.method == "POST":
-	form = QuizForm(request.POST)
+        form = QuizForm(request.POST)
         if form.is_valid():
             data = form.cleaned_data
-   	    if quiz_id == None:        
+            if quiz_id == None:        
                 form.save()
-		return my_redirect("/exam/manage/showquiz")
-	    else:
-		d = Quiz.objects.get(id=quiz_id)
-		d.start_date = form['start_date'].data
-		d.duration = form['duration'].data
-		d.active = form['active'].data
-		d.description = form['description'].data
-		d.save()
-	        return my_redirect("/exam/manage/showquiz")
+                quiz = Quiz.objects.order_by("-id")[0]
+                tags = form['tags'].data.split(',')
+                for tag in tags:
+                    tag = tag.strip()
+                    quiz.tags.add(tag)
+                return my_redirect("/exam/manage/showquiz")
+            else:
+                d = Quiz.objects.get(id=quiz_id)
+                d.start_date = form['start_date'].data
+                d.duration = form['duration'].data
+                d.active = form['active'].data
+                d.description = form['description'].data
+                d.save()
+                return my_redirect("/exam/manage/showquiz")
                 
         else:
             return my_render_to_response('exam/add_quiz.html',
                 {'form':form},
                 context_instance=RequestContext(request))
     else:
-	if quiz_id == None:
+        if quiz_id == None:
             form = QuizForm()
             return my_render_to_response('exam/add_quiz.html',
                 {'form':form},
                 context_instance=RequestContext(request))
-	else:
-	    
-	    d = Quiz.objects.get(id=quiz_id)
-	    form = QuizForm()
-	    form.initial['start_date']= d.start_date
-	    form.initial['duration'] = d.duration
-	    form.initial['description']= d.description
-	    form.initial['active'] = d.active
-		
-            return my_render_to_response('exam/add_quiz.html',
-                {'form':form},
-                context_instance=RequestContext(request))	
+        else:
+            d = Quiz.objects.get(id=quiz_id)
+            form = QuizForm()
+            form.initial['start_date']= d.start_date
+            form.initial['duration'] = d.duration
+            form.initial['description']= d.description
+            form.initial['active'] = d.active
+            return my_render_to_response('exam/add_quiz.html',{'form':form},context_instance=RequestContext(request))	
 
 
 def prof_manage(request):
     """Take credentials of the user with professor/moderator rights/permissions and log in."""
-
+    
     user = request.user
     if user.is_authenticated() and user.groups.filter(name='moderator').count() > 0:
-	context = {'user':user}
-	return render_to_response('manage.html',context)
+        context = {'user':user}
+        return render_to_response('manage.html',context)
     return my_redirect('/exam/login/')
 
 def user_login(request):
@@ -257,8 +281,8 @@ def user_login(request):
 
     user = request.user
     if user.is_authenticated():
-	if user.groups.filter(name='moderator').count() > 0 :
-	    return my_redirect('/exam/manage/')
+        if user.groups.filter(name='moderator').count() > 0 :
+            return my_redirect('/exam/manage/')
         return my_redirect("/exam/quizlist/")
 
     if request.method == "POST":
@@ -266,8 +290,8 @@ def user_login(request):
         if form.is_valid():
             user = form.cleaned_data
             login(request, user)
-	    if user.groups.filter(name='moderator').count() > 0 :
-		return my_redirect('/exam/manage/')
+            if user.groups.filter(name='moderator').count() > 0 :
+                return my_redirect('/exam/manage/')
             return my_redirect('/exam/login/')
         else:
             context = {"form": form}
@@ -289,7 +313,7 @@ def start(request,quiz_id=None):
         quiz = Quiz.objects.get(id=quiz_id)
     except Quiz.DoesNotExist:
         msg = 'Quiz not found, please contact your '\
-              'instructor/administrator. Please login again thereafter.'
+        'instructor/administrator. Please login again thereafter.'
         return complete(request, reason=msg)
 
     try:
@@ -432,7 +456,7 @@ def complete(request,reason = None):
     no = False
     message = reason or 'The quiz has been completed. Thank you.'
     if user.groups.filter(name='moderator').count() > 0:
-	message = 'You are successfully Logged out. Thanks for spending some time with the application'
+        message = 'You are successfully Logged out. Thanks for spending some time with the application'
     if request.method == 'POST' and 'no' in request.POST:
         no = True
     if not no:
@@ -494,11 +518,10 @@ def show_all_users(request):
 
     user = request.user
     if not user.is_authenticated() or user.groups.filter(name='moderator').count() == 0:
-	raise Http404('You are not allowed to view this page !')
+        raise Http404('You are not allowed to view this page !')
     user = User.objects.filter(username__contains="")
     questionpaper = QuestionPaper.objects.all()
     context = { 'question': questionpaper }
-    print context
     return my_render_to_response('exam/showusers.html',context,context_instance=RequestContext(request))
 
 def quizlist(request):
@@ -512,59 +535,58 @@ def quizlist(request):
                                     context_instance=RequestContext(request)) 
 
 
-
-
 def show_all_quiz(request):
     """Generates a list of all the quizzes that are currently in the database."""
 
     user = request.user
     if not user.is_authenticated() or user.groups.filter(name='moderator').count() == 0:
-	raise Http404('You are not allowed to view this page !')
+        raise Http404('You are not allowed to view this page !')
 
     if request.method == 'POST' and request.POST.get('delete')=='delete':
-	data = request.POST.getlist('quiz')
-	if data == None:
-	    quizzes = Quiz.objects.all()
+        data = request.POST.getlist('quiz')
+
+        if data == None:
+            quizzes = Quiz.objects.all()
             context = {'papers': [], 
                    'quiz': None, 
                    'quizzes':quizzes}
             return my_render_to_response('exam/show_quiz.html', context,
                                     context_instance=RequestContext(request))  
-	for i in data:
-		quiz = Quiz.objects.get(id=i).delete()
-	quizzes = Quiz.objects.all()
-        context = {'papers': [], 
+        else:
+       	    for i in data:
+                quiz = Quiz.objects.get(id=i).delete()
+            quizzes = Quiz.objects.all()
+            context = {'papers': [], 
                    'quiz': None, 
                    'quizzes':quizzes}
-	return my_render_to_response('exam/show_quiz.html', context,
-                                    context_instance=RequestContext(request))
+            return my_render_to_response('exam/show_quiz.html', context,
+                                        context_instance=RequestContext(request))
 
     elif request.method == 'POST' and request.POST.get('edit')=='edit':
         data = request.POST.getlist('quiz')
-	global quizlist
-	quizlist = data
-	if data == None:
+    	global quizlist
+    	quizlist = data
+    	if data == None:
             quiz = Quiz.objects.all()
             context = {'papers': [],
-                   'quiz': None,
-                   'quizzes':quiz}
+                       'quiz': None,
+                       'quizzes':quiz}
             return my_render_to_response('exam/showquiz.html', context,
                                  context_instance=RequestContext(request))
-
-        forms = []
-   	for j in data:
-            d = Quiz.objects.get(id=j)
-	    form = QuizForm()
-	    form.initial['start_date']= d.start_date
-	    form.initial['duration'] = d.duration
-	    form.initial['active']= d.active
-	    form.initial['description'] = d.description
-	    forms.append(form)
- 
-        return my_render_to_response('exam/edit_quiz.html',
+        else:
+            forms = []
+       	    for j in data:
+                d = Quiz.objects.get(id=j)
+    	        form = QuizForm()
+    	        form.initial['start_date']= d.start_date
+    	        form.initial['duration'] = d.duration
+    	        form.initial['active']= d.active
+    	        form.initial['description'] = d.description
+    	        forms.append(form)
+            return my_render_to_response('exam/edit_quiz.html',
                 {'forms':forms},
                 context_instance=RequestContext(request))
-		
+    		
     else:
         quizzes = Quiz.objects.all()
         context = {'papers': [], 
@@ -579,7 +601,7 @@ def show_all_questions(request):
 
     user = request.user
     if not user.is_authenticated() or user.groups.filter(name='moderator').count() == 0 :
-	raise Http404("You are not allowed to view this page !")
+        raise Http404("You are not allowed to view this page !")
 
     if request.method == 'POST' and request.POST.get('delete')=='delete':
         data = request.POST.getlist('question')
@@ -590,43 +612,50 @@ def show_all_questions(request):
                    'questions':questions}
             return my_render_to_response('exam/showquestions.html', context,
                                  context_instance=RequestContext(request))  
-        for i in data:
-            question = Question.objects.get(id=i).delete()
-        questions = Question.objects.all()
-        context = {'papers': [],
-                  'question': None,
-                  'questions':questions}
-        return my_render_to_response('exam/showquestions.html', context,
+        else:
+            for i in data:
+                question = Question.objects.get(id=i).delete()
+            questions = Question.objects.all()
+            context = {'papers': [],
+                      'question': None,
+                      'questions':questions}
+            return my_render_to_response('exam/showquestions.html', context,
                                    context_instance=RequestContext(request))
     
     elif request.method == 'POST' and request.POST.get('edit')=='edit':
         data = request.POST.getlist('question')
-	global editquestionlist
-	editquestionlist = data
-	if data == None:
+    	global editquestionlist
+    	editquestionlist = data
+    	if data == None:
             questions = Question.objects.all()
             context = {'papers': [],
-                   'question': None,
-                   'questions':questions}
+                       'question': None,
+                       'questions':questions}
             return my_render_to_response('exam/showquestions.html', context,
                                  context_instance=RequestContext(request))
-
-        forms = []
-   	for j in data:
-            d = Question.objects.get(id=j)
-	    form = QuestionForm()
-	    form.initial['summary']= d.summary
-	    form.initial['description'] = d.description
-	    form.initial['points']= d.points
-	    form.initial['test'] = d.test
-	    form.initial['options'] = d.options
-	    form.initial['type'] = d.type
-	    form.initial['active'] = d.active
-	    forms.append(form)
- 
-        return my_render_to_response('exam/edit_question.html',
-                {'forms':forms},
-                context_instance=RequestContext(request))	
+        else:
+            forms = []
+            for j in data:
+                d = Question.objects.get(id=j)
+                form = QuestionForm()
+                form.initial['summary']= d.summary
+                form.initial['description'] = d.description
+                form.initial['points']= d.points
+                form.initial['test'] = d.test
+                form.initial['options'] = d.options
+                form.initial['type'] = d.type
+                form.initial['active'] = d.active
+                form_tags = d.tags.all()
+                form_tags_split = form_tags.values('name')
+                initial_tags = ""
+                for tag in form_tags_split:
+                    initial_tags = initial_tags + str(tag['name']).strip() + ","
+                if (initial_tags == ","):
+                    initial_tags = ""
+                form.initial['tags']=initial_tags
+                forms.append(form)
+            return my_render_to_response('exam/edit_question.html',{'forms':forms},context_instance=RequestContext(request))	
+    
     else:
         questions = Question.objects.all()
         context = {'papers': [],