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530 lines
18 KiB
530 lines
18 KiB
# -*- coding: utf-8 -*-
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import random
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from accounts.models import User
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from city.models import City
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from company.models import Company
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from conference.models import Conference
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from country.models import Country
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from django.conf import settings
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from django.contrib.admin.views.decorators import staff_member_required
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from django.contrib.auth.decorators import login_required
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from django.core.context_processors import csrf
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from django.core.exceptions import ImproperlyConfigured, ObjectDoesNotExist
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from django.core.paginator import (
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EmptyPage,
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InvalidPage,
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PageNotAnInteger,
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Paginator
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)
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from django.core.urlresolvers import reverse_lazy
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from django.db.models.deletion import ProtectedError
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from django.db.models.loading import get_model
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from django.http import Http404, HttpResponse, HttpResponseRedirect
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from django.shortcuts import render_to_response
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from django.utils.translation import get_language as lang
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from django.utils.translation import ugettext as _
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from django.views.generic import ListView as OldListView
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from django.views.generic import DetailView, RedirectView
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from django.views.generic.detail import (
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SingleObjectMixin,
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SingleObjectTemplateResponseMixin
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)
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from django.views.generic.edit import ModelFormMixin, ProcessFormView
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from exposition.models import Exposition
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from file.forms import FileModelForm
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from file.models import TmpFile
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from functions.forms import AdminSearchForm
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from functions.views_help import split_params
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from haystack.query import EmptySearchQuerySet
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from hvad.utils import get_translation_aware_manager
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from meta.models import MetaSetting
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from meta.views import Meta
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from photoreport.models import Photoreport
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from seminar.models import Seminar
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from theme.models import Tag, Theme
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from webinar.models import Webinar
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class ListView(OldListView):
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"""
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Default Django generic ListView with few overrided methods for redirecting
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onto first page of pagination in case of entering big page number(for search engines)
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List of modules, where overrided ListView is used:
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- accounts.views
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- article.views
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- company.views
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- conference.views
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- core.views
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- exposition.views
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- photologue.views
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- place_exposition.views
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- specialist_catalog.views
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- translator.views
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"""
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def paginate_queryset(self, queryset, page_size):
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"""
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Paginate the queryset, if needed.
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"""
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paginator = self.get_paginator(queryset, page_size, allow_empty_first_page=self.get_allow_empty())
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page_kwarg = self.page_kwarg
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page = self.kwargs.get(page_kwarg) or self.request.GET.get(page_kwarg) or 1
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try:
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page_number = int(page)
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except ValueError:
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if page == 'last':
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page_number = paginator.num_pages
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else:
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raise Http404(_("Page is not 'last', nor can it be converted to an int."))
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try:
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page = paginator.page(page_number)
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self.kwargs['home'] = False
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except EmptyPage as e:
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page = paginator.page(1)
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self.kwargs['home'] = True
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return (paginator, page, page.object_list, page.has_other_pages())
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def get(self, request, *args, **kwargs):
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response = super(ListView, self).get(request, *args, **kwargs)
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if self.kwargs.get("home"):
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path = self.request.path
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return HttpResponseRedirect(path[:path.find('page')])
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else:
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return response
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@login_required
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def filtered_list(request, objects, template, item_per_page=settings.ADMIN_PAGINATION):
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"""
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Return template with objects in it with pagination
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item_per_page - how many objects view in the one page
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"""
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paginator = Paginator(objects, item_per_page)
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page = request.GET.get('page')
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try:
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objects = paginator.page(page)
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except PageNotAnInteger:
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# If page is not an integer, deliver first page.
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objects = paginator.page(1)
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except EmptyPage:
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# If page is out of range (e.g. 9999), deliver last page of results.
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objects = paginator.page(paginator._num_pages)
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return render_to_response(template, {'objects': objects, 'search_form': AdminSearchForm()})
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@staff_member_required
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def objects_list(request, Model, template, item_per_page=settings.ADMIN_PAGINATION):
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"""
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Return template with all objects of model Model
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Model - objects Model
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item_per_page - how many objects view in the one page
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"""
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if request.GET:
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form = AdminSearchForm(request.POST)
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if form.is_valid():
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s_name = request.GET.get('search_name')
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if s_name:
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objects = get_translation_aware_manager(Model).filter(name__contains=s_name).distinct()
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return filtered_list(request, objects, template, 1000)
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else:
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list = Model.objects.all()
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else:
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list = Model.objects.all()
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paginator = Paginator(list, item_per_page)
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page = request.GET.get('page')
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try:
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objects = paginator.page(page)
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except PageNotAnInteger:
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# If page is not an integer, deliver first page.
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objects = paginator.page(1)
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except EmptyPage:
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# If page is out of range (e.g. 9999), deliver last page of results.
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objects = paginator.page(paginator._num_pages)
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return render_to_response(template, {'objects': objects, 'search_form': AdminSearchForm()})
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@login_required
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def add_object(request, Form, template_string, redirect_string, #required values
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choices={}, init_data ={}):
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if request.POST:
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form = Form(request.POST)
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#set choices filled by ajax
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if 'city' in choices:
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form.fields['city'].choices = [(item.id, item.name) for item in choices['city'].objects.filter(country=request.POST['country'])]
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if 'tag' in choices:
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form.fields['tag'].choices = [(item.id, item.name) for item in choices['tag'].objects.all()]
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if form.is_valid():
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form.save()
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return HttpResponseRedirect(redirect_string)
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else:
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form = Form(initial=init_data)
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args = {}
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args.update(csrf(request))
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args['languages'] = settings.LANGUAGES
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args['form'] = form
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return render_to_response(template_string, args)
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@login_required
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def add_object_with_file(request, Form, template, redirect_string, #required values
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choices={}, init_data ={}):
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"""
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Return form and FileForm and post it on the server.
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Create key which will be check tmp files
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If form is posted redirect on the page in redirect_string
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FileForm posts with ajax
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choices are ...
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"""
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#cheks if key already exist(when form wasn't validated)
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if request.POST.get('key'):
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key = request.POST['key']
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else:
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key = random.getrandbits(128)
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#initial FileForm with key for checking if file connected to object
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file_form = FileModelForm(initial={'key': key})
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if request.POST:
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form = Form(request.POST)
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#set choices filled by ajax
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if 'city' in choices:
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form.fields['city'].choices = [(item.id, item.name) for item in choices['city'].objects.filter(country=request.POST['country'])]
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if 'tag' in choices:
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form.fields['tag'].choices = [(item.id, item.name) for item in Tag.objects.all()]
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if form.is_valid():
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form.save()
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return HttpResponseRedirect(redirect_string)
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else:
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init_data['key'] = key
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form = Form(initial=init_data)
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args = {}
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args.update(csrf(request))
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#languages uses in template
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args['languages'] = settings.LANGUAGES
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args['form'] = form
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args['file_form'] = file_form
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#list of files connected to this form
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args['files'] = TmpFile.objects.filter(key=key)
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return render_to_response(template, args)
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@login_required
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def delete_object(request, Model, Form, url, prev_page,):
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"""
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Form must have 1 parameter url or id
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"""
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if request.GET:
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url = request.GET.get('url')
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id = request.GET.get('id')
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if url:
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object = Model.objects.get(url=url)
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else:
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object = Model.objects.get(id=id)
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try:
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object.delete()
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return HttpResponseRedirect(prev_page)
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except ProtectedError:
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msg = _(u'Удаления %(object)s требует удаления связаных объектов') % {'object': object}
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return render_to_response('delete.html', {'msg':msg, 'prev_page':prev_page})
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else:
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try:
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object = Model.objects.get(url=url)
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except:
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object = Model.objects.get(id=url)
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form = Form(instance=object)
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args = {}
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args.update(csrf(request))
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args['form'] = form
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args['object'] = object
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args['prev_page'] = prev_page
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return render_to_response('delete.html', args)
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class ExpoMixin(object):
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def get_params(self):
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model_names = {Exposition: _(u'Выставки'), Conference: _(u'Конференции'), Seminar: _(u'Семинары'),
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Webinar: _(u'Вебинары'), Company: _(u'Участники'), Photoreport: _(u'Фоторепортажи')}
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model_alternative_name = {Exposition: 'exposition', Conference: 'conference', Photoreport: 'photoreport'}
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params = [{'type':'model', 'url':self.model, 'name': model_names.get(self.model),
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'alternative_name': model_alternative_name.get(self.model)}]
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st = self.kwargs.get('params')
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if st:
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params = params + split_params(st)
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return params
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single_page_filter = {Exposition:'event', Conference:'event', Seminar:'event', Webinar:'event', Company:'member',
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User:'visitor', Photoreport: 'photoreport'}
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class ExpoListView(ExpoMixin, ListView):
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"""
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"""
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paginate_by = settings.CLIENT_PAGINATION
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params = None
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single_page = False
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search_form = None
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order = None
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def get_queryset(self):
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query = self.model.objects.all()
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params = self.get_params()
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for param in params:
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if param.get('type') == 'country':
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country = Country.objects.safe_get(url=param.get('url'))
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if country:
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param['name'] = country.name
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query = query.filter(country=country)
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if param.get('type') == 'city':
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city = City.objects.safe_get(url=param.get('url'))
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if city:
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param['name'] = city.name
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query = query.filter(city=city)
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if param.get('type') == 'theme':
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theme = Theme.objects.safe_get(url=param.get('url'))
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if theme:
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param['name'] = theme.name
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query = query.filter(theme=theme)
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if param.get('type') == 'tag':
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tag = Tag.objects.safe_get(url=param.get('url'))
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if tag:
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param['name'] = tag.name
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query = query.filter(tag=tag)
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if param.get('type') == 'year':
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param['name'] = param.get('url')
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query = query.filter(data_begin__year=param.get('url'))
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if param.get('type') == 'month':
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monthes = {'jan': 1, 'feb': 2, 'mar': 3, 'apr': 4, 'may': 5, 'jun': 6,
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'jul': 7, 'aug': 8, 'sep': 9, 'oct': 10, 'nov': 11, 'dec': 12}
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param['name'] = param.get('url')
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query = query.filter(data_begin__month=monthes.get(param.get('url')))
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if param.get('type') == 'member' and self.model != Company:
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param['name'] = param.get('url')
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company = Company.objects.safe_get(url=param.get('url'))
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if company:
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param['name'] = company.name
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query = query.filter(company__in=[company])
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if param.get('type') == single_page_filter.get(self.model):
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query = query.filter(url=param.get('url'))
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if query:
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self.single_page = True
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param['name'] = query[0].name
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#if self.request:
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# views = query[0].views
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# query.update(views=views+1)
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self.params = params
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if self.order:
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return query.order_by(self.order)
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else:
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return query
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def get_context_data(self, **kwargs):
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context = super(ExpoListView, self).get_context_data(**kwargs)
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context['filter'] = self.params
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context['single_page'] = self.single_page
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context['search_form'] = self.search_form
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if self.single_page:
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s = MetaSetting.objects.get(name='expo')
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obj = context['object_list'][0]
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params = s.generate_meta(obj)
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m = Meta(**params)
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context['meta'] = m
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return context
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class EventDetail(ExpoMixin, DetailView):
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def get_object(self, queryset=None):
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obj = Country.objects.filter()[0]
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return obj
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class ExpoSearchView(ListView):
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paginate_by = settings.CLIENT_PAGINATION
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template_name = None
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search_form = None
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model = None
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def get_queryset(self):
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if self.request.GET:
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form = self.search_form(self.request.GET)
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if form.is_valid():
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return form.search()
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else:
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return EmptySearchQuerySet()
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else:
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return EmptySearchQuerySet()
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def get_context_data(self, **kwargs):
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context = super(ExpoSearchView, self).get_context_data(**kwargs)
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if self.request.GET:
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form = self.search_form(self.request.GET)
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if form.is_valid():
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form.data_with_parents = form.get_form_data()
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else:
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form = self.search_form()
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context['search_form'] = form
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queries = self.request.GET.copy()
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if queries.has_key('page'):
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del queries['page']
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context['queries'] = queries
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return context
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class SimpleObjectChangeView(RedirectView, SingleObjectMixin):
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model = None
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url = None
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slug_field = 'url'
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slug_url_kwarg = 'url'
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attr = None
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attr_state = None
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query_string = True
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def get_object(self, queryset=None):
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"""
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Returns the object the view is displaying.
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By default this requires `self.queryset` and a `pk` or `slug` argument
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in the URLconf, but subclasses can override this to return any object.
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"""
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# Use a custom queryset if provided; this is required for subclasses
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# like DateDetailView
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if queryset is None:
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queryset = self.get_queryset()
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qs = self.model._default_manager.none()
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# Next, try looking up by url or primary key.
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slug = self.kwargs.get(self.slug_url_kwarg, None)
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if slug is not None:
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slug_field = self.get_slug_field()
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qs = queryset.filter(**{slug_field: slug})
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if not qs:
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qs = queryset.filter(pk=slug)
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# If none of those are defined, it's an error.
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else:
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raise AttributeError("Generic detail view %s must be called with "
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"either an object pk or a slug."
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% self.__class__.__name__)
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try:
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# Get the single item from the filtered queryset
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obj = qs.get()
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except ObjectDoesNotExist:
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raise Http404(_("No %(verbose_name)s found matching the query") %
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{'verbose_name': qs.model._meta.verbose_name})
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return obj
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def change_object(self, **kwargs):
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setattr(self.object, self.attr, self.attr_state)
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self.object.save(update_fields=[self.attr])
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def get(self, request, *args, **kwargs):
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self.object = self.get_object()
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self.change_object()
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print(self.request.META.get('QUERY_STRING', ''))
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return super(SimpleObjectChangeView, self).get(request, *args, **kwargs)
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class BlockedFilterMixin(object):
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'''Filters default queryset with excluding blocked items
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'''
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def get_queryset(self):
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qs = super(BlockedFilterMixin, self).get_queryset()
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return qs.filter(blocked=False)
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class AjaxableResponseMixin(object):
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"""
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Mixin to add AJAX support to a form.
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Must be used with an object-based FormView (e.g. CreateView)
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"""
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def form_invalid(self, form):
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response = super(AjaxableResponseMixin, self).form_invalid(form)
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if self.request.is_ajax():
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return JsonResponse(form.errors, status=400)
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else:
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return response
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def form_valid(self, form):
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# We make sure to call the parent's form_valid() method because
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# it might do some processing (in the case of CreateView, it will
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# call form.save() for example).
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response = super(AjaxableResponseMixin, self).form_valid(form)
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if self.request.is_ajax():
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data = {
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'pk': self.object.pk,
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}
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return JsonResponse(data)
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else:
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return response
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class CreateUpdateView(SingleObjectTemplateResponseMixin, ModelFormMixin, ProcessFormView):
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def get_object(self, queryset=None):
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try:
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return super(CreateUpdateView,self).get_object(queryset)
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except AttributeError:
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return None
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def get(self, request, *args, **kwargs):
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self.object = self.get_object()
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return super(CreateUpdateView, self).get(request, *args, **kwargs)
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def post(self, request, *args, **kwargs):
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self.object = self.get_object()
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return super(CreateUpdateView, self).post(request, *args, **kwargs)
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class ContextMixin(object):
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initial_ctx = {}
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def dispatch(self, request, *args, **kwargs):
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self.extra_ctx = self.initial_ctx.copy()
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return super(ContextMixin, self).dispatch(request, *args, **kwargs)
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def get_context_data(self, **kwargs):
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context = super(ContextMixin, self).get_context_data(**kwargs)
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context.update(self.extra_ctx)
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return context
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