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from django.core.urlresolvers import reverse
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from django.shortcuts import render
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from boards.abstracts.paginator import get_paginator
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from boards.abstracts.settingsmanager import get_settings_manager
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from boards.models import Post
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from boards.views.base import BaseBoardView
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from boards.views.posting_mixin import PostMixin
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POSTS_PER_PAGE = 10
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PARAMETER_CURRENT_PAGE = 'current_page'
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PARAMETER_PAGINATOR = 'paginator'
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PARAMETER_POSTS = 'posts'
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PARAMETER_ADDITONAL_ATTRS = 'additional_attrs'
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PARAMETER_PREV_LINK = 'prev_page_link'
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PARAMETER_NEXT_LINK = 'next_page_link'
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TEMPLATE = 'boards/feed.html'
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DEFAULT_PAGE = 1
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class FeedView(PostMixin, BaseBoardView):
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def get(self, request):
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page = request.GET.get('page', DEFAULT_PAGE)
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tripcode = request.GET.get('tripcode', None)
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params = self.get_context_data(request=request)
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settings_manager = get_settings_manager(request)
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posts = Post.objects.exclude(
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threads__tags__in=settings_manager.get_hidden_tags()).order_by(
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'-pub_time').prefetch_related('images', 'thread', 'threads')
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if tripcode:
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posts = posts.filter(tripcode=tripcode)
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paginator = get_paginator(posts, POSTS_PER_PAGE)
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paginator.current_page = int(page)
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params[PARAMETER_POSTS] = paginator.page(page).object_list
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additional_params = dict()
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if tripcode:
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additional_params['tripcode'] = tripcode
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params[PARAMETER_ADDITONAL_ATTRS] = '&tripcode=' + tripcode
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self.get_page_context(paginator, params, page, additional_params)
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return render(request, TEMPLATE, params)
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# TODO Dedup this into PagedMixin
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def get_page_context(self, paginator, params, page, additional_params):
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"""
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Get pagination context variables
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"""
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params[PARAMETER_PAGINATOR] = paginator
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current_page = paginator.page(int(page))
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params[PARAMETER_CURRENT_PAGE] = current_page
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if current_page.has_previous():
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params[PARAMETER_PREV_LINK] = self.get_previous_page_link(
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current_page)
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for param in additional_params.keys():
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params[PARAMETER_PREV_LINK] += '&{}={}'.format(
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param, additional_params[param])
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if current_page.has_next():
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params[PARAMETER_NEXT_LINK] = self.get_next_page_link(current_page)
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for param in additional_params.keys():
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params[PARAMETER_NEXT_LINK] += '&{}={}'.format(
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param, additional_params[param])
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def get_previous_page_link(self, current_page):
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return reverse('feed') + '?page={}'.format(
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current_page.previous_page_number())
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def get_next_page_link(self, current_page):
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return reverse('feed') + '?page={}'.format(
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current_page.next_page_number())
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