views.py
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# Create your views here.
from django.views import generic
from django.contrib.auth.mixins import LoginRequiredMixin
from django.utils.translation import ugettext_lazy as _
from django.core.urlresolvers import reverse, reverse_lazy
from django.shortcuts import get_object_or_404, redirect, render
from django.contrib import messages
from amadeus.permissions import has_subject_permissions, has_resource_permissions
from .forms import PDFFileForm
from os import path
from django.http import HttpResponse, Http404
from log.mixins import LogMixin
from topics.models import Topic, Resource
from .models import PDFFile
from pendencies.forms import PendenciesForm
class ViewPDFFile(LoginRequiredMixin, LogMixin, generic.TemplateView):
template_name='pdf_file/view.html'
log_component = 'resources'
log_action = 'view'
log_resource = 'pdffile'
log_context = {}
def dispatch(self, request, *args, **kwargs):
slug = self.kwargs.get('slug', '')
resource = get_object_or_404(Resource, slug = slug)
topic = resource.topic
if not has_subject_permissions(request.user, topic.subject) and not has_resource_permissions(request.user, resource):
return redirect(reverse_lazy('subjects:home'))
return super(ViewPDFFile, self).dispatch(request, *args, **kwargs)
def get_context_data(self, **kwargs):
context = super(ViewPDFFile, self).get_context_data(**kwargs)
slug = self.kwargs.get('slug', '')
pdf_file = PDFFile.objects.get(slug=slug)
context['pdf_file'] = pdf_file
context['subject'] = pdf_file.topic.subject
self.log_context['category_id'] = pdf_file.topic.subject.category.id
self.log_context['category_name'] = pdf_file.topic.subject.category.name
self.log_context['category_slug'] = pdf_file.topic.subject.category.slug
self.log_context['subject_id'] = pdf_file.topic.subject.id
self.log_context['subject_name'] = pdf_file.topic.subject.name
self.log_context['subject_slug'] = pdf_file.topic.subject.slug
self.log_context['topic_id'] = pdf_file.topic.id
self.log_context['topic_name'] = pdf_file.topic.name
self.log_context['topic_slug'] = pdf_file.topic.slug
self.log_context['pdffile_id'] = pdf_file.id
self.log_context['pdffile_name'] = pdf_file.name
self.log_context['pdffile_slug'] = pdf_file.slug
super(ViewPDFFile, self).createLog(self.request.user, self.log_component, self.log_action, self.log_resource, self.log_context)
return context
def render_to_response(self, context, **response_kwargs):
slug = self.kwargs.get('slug', '')
pdf_file = PDFFile.objects.get(slug=slug)
if not path.exists(pdf_file.file.path):
raise Http404()
if pdf_file.show_window:
response = HttpResponse(open(pdf_file.file.path, 'rb').read(),content_type = 'application/pdf')
return response
response_kwargs.setdefault('content_type', self.content_type)
return self.response_class(
request = self.request,
template = self.get_template_names(),
context = context,
**response_kwargs
)
class PDFFileCreateView(LoginRequiredMixin, LogMixin , generic.CreateView):
form_class = PDFFileForm
template_name = 'pdf_file/create.html'
login_url = reverse_lazy("users:login")
redirect_field_name = 'next'
log_resource = 'pdffile'
def dispatch(self, request, *args, **kwargs):
slug = self.kwargs.get('slug', '')
topic = get_object_or_404(Topic, slug = slug)
if not has_subject_permissions(request.user, topic.subject):
return redirect(reverse_lazy('subjects:home'))
return super(PDFFileCreateView, self).dispatch(request, *args, **kwargs)
def get(self, request, *args, **kwargs):
self.object = None
form_class = self.get_form_class()
form = self.get_form(form_class)
slug = self.kwargs.get('slug', '')
topic = get_object_or_404(Topic, slug = slug)
pendencies_form = PendenciesForm(initial = {'subject': topic.subject.id, 'actions': [("", "-------"),("view", _("Visualize"))]})
return self.render_to_response(self.get_context_data(form = form, pendencies_form = pendencies_form))
def post(self, request, *args, **kwargs):
self.object = None
form_class = self.get_form_class()
form = self.get_form(form_class)
slug = self.kwargs.get('slug', '')
topic = get_object_or_404(Topic, slug = slug)
pendencies_form = PendenciesForm(self.request.POST, initial = {'subject': topic.subject.id, 'actions': [("", "-------"),("view", _("Visualize"))]})
if (form.is_valid() and pendencies_form.is_valid()):
return self.form_valid(form, pendencies_form)
else:
return self.form_invalid(form, pendencies_form)
def get_initial(self):
initial = super(PDFFileCreateView, self).get_initial()
slug = self.kwargs.get('slug', '')
topic = get_object_or_404(Topic, slug = slug)
initial['subject'] = topic.subject
return initial
def form_invalid(self, form, pendencies_form):
return self.render_to_response(self.get_context_data(form = form, pendencies_form = pendencies_form))
def form_valid(self, form, pendencies_form):
self.object = form.save(commit = False)
slug = self.kwargs.get('slug', '')
topic = get_object_or_404(Topic, slug = slug)
self.object.topic = topic
self.object.order = topic.resource_topic.count() + 1
if not self.object.topic.visible and not self.object.topic.repository:
self.object.visible = False
self.object.save()
pend_form = pendencies_form.save(commit = False)
pend_form.resource = self.object
if not pend_form.action == "":
pend_form.save()
self.log_context['category_id'] = self.object.topic.subject.category.id
self.log_context['category_name'] = self.object.topic.subject.category.name
self.log_context['category_slug'] = self.object.topic.subject.category.slug
self.log_context['subject_id'] = self.object.topic.subject.id
self.log_context['subject_name'] = self.object.topic.subject.name
self.log_context['subject_slug'] = self.object.topic.subject.slug
self.log_context['topic_id'] = self.object.topic.id
self.log_context['topic_name'] = self.object.topic.name
self.log_context['topic_slug'] = self.object.topic.slug
self.log_context['pdffile_id'] = self.object.id
self.log_context['pdffile_name'] = self.object.name
self.log_context['pdffile_slug'] = self.object.slug
super(PDFFileCreateView, self).createLog(self.request.user, self.log_component, self.log_action, self.log_resource, self.log_context)
return redirect(self.get_success_url())
def get_context_data(self, **kwargs):
context = super(PDFFileCreateView, self).get_context_data(**kwargs)
context['title'] = _('Create PDF File')
slug = self.kwargs.get('slug', '')
topic = get_object_or_404(Topic, slug = slug)
context['topic'] = topic
context['subject'] = topic.subject
return context
def get_success_url(self):
messages.success(self.request, _('The PDF File "%s" was added to the Topic "%s" of the virtual environment "%s" successfully!')%(self.object.name, self.object.topic.name, self.object.topic.subject.name))
return reverse_lazy('subjects:topic_view', kwargs = {'slug': self.object.topic.subject.slug, 'topic_slug': self.object.topic.slug})
class UpdateView(LoginRequiredMixin, LogMixin, generic.UpdateView):
log_component = 'resources'
log_action = 'update'
log_resource = 'pdffile'
log_context = {}
login_url = reverse_lazy("users:login")
redirect_field_name = 'next'
template_name = 'pdf_file/update.html'
model = PDFFile
form_class = PDFFileForm
context_object_name = 'pdf_file'
def dispatch(self, request, *args, **kwargs):
slug = self.kwargs.get('topic_slug', '')
topic = get_object_or_404(Topic, slug = slug)
if not has_subject_permissions(request.user, topic.subject):
return redirect(reverse_lazy('subjects:home'))
return super(UpdateView, self).dispatch(request, *args, **kwargs)
def get(self, request, *args, **kwargs):
self.object = self.get_object()
form_class = self.get_form_class()
form = self.get_form(form_class)
slug = self.kwargs.get('topic_slug', '')
topic = get_object_or_404(Topic, slug = slug)
pend_form = self.object.pendencies_resource.all()
if len(pend_form) > 0:
pendencies_form = PendenciesForm(instance = pend_form[0], initial = {'subject': topic.subject.id, 'actions': [("", "-------"),("view", _("Visualize"))]})
else:
pendencies_form = PendenciesForm(initial = {'subject': topic.subject.id, 'actions': [("", "-------"),("view", _("Visualize"))]})
return self.render_to_response(self.get_context_data(form = form, pendencies_form = pendencies_form))
def post(self, request, *args, **kwargs):
self.object = self.get_object()
form_class = self.get_form_class()
form = self.get_form(form_class)
slug = self.kwargs.get('topic_slug', '')
topic = get_object_or_404(Topic, slug = slug)
pend_form = self.object.pendencies_resource.all()
if len(pend_form) > 0:
pendencies_form = PendenciesForm(self.request.POST, instance = pend_form[0], initial = {'subject': topic.subject.id, 'actions': [("", "-------"),("view", _("Visualize"))]})
else:
pendencies_form = PendenciesForm(self.request.POST, initial = {'subject': topic.subject.id, 'actions': [("", "-------"),("view", _("Visualize"))]})
if (form.is_valid() and pendencies_form.is_valid()):
return self.form_valid(form, pendencies_form)
else:
return self.form_invalid(form, pendencies_form)
def form_invalid(self, form, pendencies_form):
return self.render_to_response(self.get_context_data(form = form, pendencies_form = pendencies_form))
def form_valid(self, form, pendencies_form):
self.object = form.save(commit = False)
if not self.object.topic.visible and not self.object.topic.repository:
self.object.visible = False
self.object.save()
pend_form = pendencies_form.save(commit = False)
pend_form.resource = self.object
if not pend_form.action == "":
pend_form.save()
self.log_context['category_id'] = self.object.topic.subject.category.id
self.log_context['category_name'] = self.object.topic.subject.category.name
self.log_context['category_slug'] = self.object.topic.subject.category.slug
self.log_context['subject_id'] = self.object.topic.subject.id
self.log_context['subject_name'] = self.object.topic.subject.name
self.log_context['subject_slug'] = self.object.topic.subject.slug
self.log_context['topic_id'] = self.object.topic.id
self.log_context['topic_name'] = self.object.topic.name
self.log_context['topic_slug'] = self.object.topic.slug
self.log_context['pdffile_id'] = self.object.id
self.log_context['pdffile_name'] = self.object.name
self.log_context['pdffile_slug'] = self.object.slug
super(UpdateView, self).createLog(self.request.user, self.log_component, self.log_action, self.log_resource, self.log_context)
return redirect(self.get_success_url())
def get_context_data(self, **kwargs):
context = super(UpdateView, self).get_context_data(**kwargs)
context['title'] = _('Update PDF File')
slug = self.kwargs.get('topic_slug', '')
topic = get_object_or_404(Topic, slug = slug)
context['topic'] = topic
context['subject'] = topic.subject
return context
def get_success_url(self):
messages.success(self.request, _('The PDF File "%s" was updated successfully!')%(self.object.name))
return reverse_lazy('subjects:view', kwargs = {'slug': self.object.topic.subject.slug})
class DeleteView(LoginRequiredMixin, LogMixin, generic.DeleteView):
log_component = 'resources'
log_action = 'delete'
log_resource = 'pdf_file'
log_context = {}
login_url = reverse_lazy("users:login")
redirect_field_name = 'next'
template_name = 'resources/delete.html'
model = PDFFile
context_object_name = 'resource'
def dispatch(self, request, *args, **kwargs):
slug = self.kwargs.get('slug', '')
pdf_file = get_object_or_404(PDFFile, slug = slug)
if not has_subject_permissions(request.user, pdf_file.topic.subject):
return redirect(reverse_lazy('subjects:home'))
return super(DeleteView, self).dispatch(request, *args, **kwargs)
def get_success_url(self):
messages.success(self.request, _('The PDF File "%s" was removed successfully from virtual environment "%s"!')%(self.object.name, self.object.topic.subject.name))
self.log_context['category_id'] = self.object.topic.subject.category.id
self.log_context['category_name'] = self.object.topic.subject.category.name
self.log_context['category_slug'] = self.object.topic.subject.category.slug
self.log_context['subject_id'] = self.object.topic.subject.id
self.log_context['subject_name'] = self.object.topic.subject.name
self.log_context['subject_slug'] = self.object.topic.subject.slug
self.log_context['topic_id'] = self.object.topic.id
self.log_context['topic_name'] = self.object.topic.name
self.log_context['topic_slug'] = self.object.topic.slug
self.log_context['pdffile_id'] = self.object.id
self.log_context['pdffile_name'] = self.object.name
self.log_context['pdffile_slug'] = self.object.slug
super(DeleteView, self).createLog(self.request.user, self.log_component, self.log_action, self.log_resource, self.log_context)
return reverse_lazy('subjects:view', kwargs = {'slug': self.object.topic.subject.slug})