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bkfox
322
cms/views.py
322
cms/views.py
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from django.shortcuts import render
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from django.template.loader import render_to_string
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from django.views.generic import ListView, DetailView
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from django.views.generic.base import View, TemplateResponseMixin
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from django.core import serializers
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from django.utils.translation import ugettext as _, ugettext_lazy
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import cms.routes as routes
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class PostBaseView:
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website = None # corresponding website
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title = '' # title of the page
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embed = False # page is embed (if True, only post content is printed
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classes = '' # extra classes for the content
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def get_base_context (self):
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"""
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Return a context with all attributes of this classe plus 'view' set
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to self.
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"""
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context = {
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k: getattr(self, k)
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for k, v in PostBaseView.__dict__.items()
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if not k.startswith('__')
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}
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if not self.embed:
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context['menus'] = {
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k: v.get(self.request)
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for k, v in {
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'top': self.website.get_menu('top'),
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'left': self.website.get_menu('left'),
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'bottom': self.website.get_menu('bottom'),
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'right': self.website.get_menu('right'),
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'header': self.website.get_menu('header'),
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'footer': self.website.get_menu('footer'),
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}.items() if v
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}
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context['view'] = self
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return context
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class PostListView (PostBaseView, ListView):
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"""
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List view for posts and children
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"""
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class Query:
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"""
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Request availables parameters
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"""
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embed = False
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exclude = None
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order = 'desc'
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reverse = False
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fields = None
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def __init__ (self, query):
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if query:
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self.update(query)
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def update (self, query):
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my_class = self.__class__
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if type(query) is my_class:
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self.__dict__.update(query.__dict__)
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return
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self.__dict__.update(query)
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template_name = 'cms/list.html'
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allow_empty = True
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route = None
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query = None
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fields = [ 'date', 'time', 'image', 'title', 'content' ]
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def __init__ (self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self.query = PostListView.Query(self.query)
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def dispatch (self, request, *args, **kwargs):
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self.route = self.kwargs.get('route') or self.route
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return super().dispatch(request, *args, **kwargs)
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def get_queryset (self):
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qs = self.route.get_queryset(self.model, self.request, **self.kwargs)
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query = self.query
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query.update(self.request.GET)
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if query.exclude:
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qs = qs.exclude(id = int(exclude))
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if query.embed:
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self.embed = True
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if query.order == 'asc':
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qs.order_by('date', 'id')
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else:
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qs.order_by('-date', '-id')
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if query.fields:
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self.fields = [
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field for field in query.fields
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if field in self.__class__.fields
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]
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return qs
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def get_context_data (self, **kwargs):
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context = super().get_context_data(**kwargs)
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context.update(self.get_base_context())
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context.update({
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'title': self.get_title(),
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})
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return context
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def get_title (self):
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if self.title:
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return self.title
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title = self.route and self.route.get_title(self.model, self.request,
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**self.kwargs)
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return title
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class PostDetailView (DetailView, PostBaseView):
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"""
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Detail view for posts and children
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"""
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template_name = 'cms/detail.html'
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sections = []
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def __init__ (self, sections = None, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self.sections = sections or []
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def get_queryset (self, **kwargs):
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if self.model:
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return super().get_queryset(**kwargs).filter(published = True)
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return []
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def get_object (self, **kwargs):
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if self.model:
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object = super().get_object(**kwargs)
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if object.published:
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return object
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return None
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def get_context_data (self, **kwargs):
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context = super().get_context_data(**kwargs)
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context.update(self.get_base_context())
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context.update({
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'sections': [
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section.get(self.request, object = self.object)
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for section in self.sections
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]
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})
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return context
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class ViewSet:
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"""
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A ViewSet is a class helper that groups detail and list views that can be
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used to generate views and routes given a model and a name used for the
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routing.
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"""
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model = None
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list_view = PostListView
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list_routes = []
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detail_view = PostDetailView
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detail_sections = []
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def __init__ (self, website = None):
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self.detail_sections = [
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section()
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for section in self.detail_sections
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]
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self.detail_view = self.detail_view.as_view(
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model = self.model,
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sections = self.detail_sections,
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website = website,
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)
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self.list_view = self.list_view.as_view(
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model = self.model,
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website = website,
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)
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self.urls = [ route.as_url(self.model, self.list_view)
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for route in self.list_routes ] + \
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[ routes.DetailRoute.as_url(self.model, self.detail_view ) ]
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class Menu (View):
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template_name = 'cms/menu.html'
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name = ''
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enabled = True
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classes = ''
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position = '' # top, left, bottom, right, header, footer
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sections = None
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def __init__ (self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self.name = self.name or ('menu_' + self.position)
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def get_context_data (self, **kwargs):
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return {
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'name': self.name,
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'classes': self.classes,
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'position': self.position,
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'sections': [
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section.get(self.request, object = None)
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for section in self.sections
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]
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}
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def get (self, request, **kwargs):
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self.request = request
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context = self.get_context_data(**kwargs)
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return render_to_string(self.template_name, context)
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class Section (View):
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"""
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Base class for sections. Sections are view that can be used in detail view
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in order to have extra content about a post.
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"""
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template_name = 'cms/section.html'
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require_object = False
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object = None
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classes = ''
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title = ''
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content = ''
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header = ''
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bottom = ''
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def get_context_data (self, **kwargs):
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context = {
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'title': self.title,
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'header': self.header,
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'content': self.content,
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'bottom': self.bottom,
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'classes': self.classes,
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}
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return context
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def get (self, request, **kwargs):
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self.object = kwargs.get('object') or self.object
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self.request = request
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context = self.get_context_data(**kwargs)
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return render_to_string(self.template_name, context)
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class ListSection (Section):
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"""
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Section to render list. The context item 'object_list' is used as list of
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items to render.
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"""
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class Item:
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icon = None
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title = None
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text = None
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def __init__ (self, icon, title = None, text = None):
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self.icon = icon
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self.title = title
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self.text = text
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use_icons = True
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icon_size = '32x32'
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template_name = 'cms/section_list.html'
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def get_object_list (self):
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return []
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def get_context_data (self, **kwargs):
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context = super().get_context_data(**kwargs)
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context.update({
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'classes': context.get('classes') + ' section_list',
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'icon_size': self.icon_size,
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'object_list': self.get_object_list(),
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})
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return context
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class UrlListSection (ListSection):
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classes = 'section_urls'
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targets = None
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def get_object_list (self, request, **kwargs):
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return [
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ListSection.Item(
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target.image or None,
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'<a href="{}">{}</a>'.format(target.detail_url(), target.title)
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)
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for target in self.targets
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]
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class PostListSection (PostListView):
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route = None
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model = None
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embed = True
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def __init__ (self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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def get_kwargs (self, request, **kwargs):
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return kwargs
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def dispatch (self, request, *args, **kwargs):
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kwargs = self.get_kwargs(kwargs)
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response = super().dispatch(request, *args, **kwargs)
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return str(response.content)
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# TODO:
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# - get_title: pass object / queryset
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