Coverage for djangocms_unimelb/templatetags/unimelb.py : 53.19%
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1from django import template
2from django.core.paginator import EmptyPage
3from django.utils.safestring import mark_safe
4from django.urls import reverse_lazy
5from django.conf import settings
7from classytags.helpers import InclusionTag
9register = template.Library()
11@register.inclusion_tag('djangocms_unimelb/paginator.html', takes_context=True)
12def unimelb_paginator(context, adjacent_pages=3):
13 """
14 Inclusion tag for rendering a paginator for multi-page lists.
16 Adapted from https://romanvm.pythonanywhere.com/post/bootstrap4-based-pagination-django-listview-30/
18 Adds pagination context variables for use in displaying first, adjacent and
19 last page links in addition to those created by the object_list generic
20 view.
22 :param context: parent template context
23 :param adjacent_pages: the number of pages adjacent to the current
24 :return: context for rendering paginator html code
25 """
26 start_page = max(context['page_obj'].number - adjacent_pages, 1)
27 if start_page <= 3:
28 start_page = 1
29 end_page = context['page_obj'].number + adjacent_pages + 1
30 if end_page >= context['paginator'].num_pages - 1:
31 end_page = context['paginator'].num_pages + 1
32 page_numbers = [n for n in range(start_page, end_page) if n in range(1, context['paginator'].num_pages + 1)]
33 page_obj = context['page_obj']
34 paginator = context['paginator']
35 try:
36 next_ = context['page_obj'].next_page_number()
37 except EmptyPage:
38 next_ = None
39 try:
40 previous = context['page_obj'].previous_page_number()
41 except EmptyPage:
42 previous = None
43 return {
44 'page_obj': page_obj,
45 'paginator': paginator,
46 'page': context['page_obj'].number,
47 'pages': context['paginator'].num_pages,
48 'page_numbers': page_numbers,
49 'next': next_,
50 'previous': previous,
51 'has_next': context['page_obj'].has_next(),
52 'has_previous': context['page_obj'].has_previous(),
53 'show_first': 1 not in page_numbers,
54 'show_last': context['paginator'].num_pages not in page_numbers,
55 'request': context['request']
56 }
59class PageMetaInclusionTag(InclusionTag):
60 push_context=True
61 def render_tag(self, context, **kwargs):
62 if 'djangocms_page_meta' in settings.INSTALLED_APPS:
63 return super().render_tag(context, **kwargs)
64 return ""
67class UnimelbPageMeta(PageMetaInclusionTag):
68 name = "unimelb_page_meta"
69 template = 'djangocms_unimelb/page_meta.html'
71register.tag(UnimelbPageMeta)
74class UnimelbSchemaOrgHTMLScope(PageMetaInclusionTag):
75 name = "unimelb_schemaorg_html_scope"
76 template = 'djangocms_unimelb/schemaorg_html_scope.html'
78register.tag(UnimelbSchemaOrgHTMLScope)
81@register.inclusion_tag('djangocms_unimelb/404.html')
82def unimelb_404():
83 return {}
86@register.inclusion_tag('djangocms_unimelb/500.html')
87def unimelb_500():
88 return {}