qcg/templatetags/qcg_utils.py

   1 from datetime import datetime, timedelta
   2 from pyexpat import ExpatError
   3 from xml.dom import minidom
   4
   5 from django import template
   6 from django.conf import settings
   7 from django.forms.utils import flatatt
   8 from django.utils.html import format_html, format_html_join, conditional_escape
   9 from django.utils.timesince import timesince
  10 from django.utils.timezone import now
  11
  12 from qcg.utils import localtime_str
  13
  14
  15 register = template.Library()
  16 register.filter('flatatt', flatatt)
  17
  18
  19 @register.simple_tag
  20 def display_attribute(label, value):
  21     if isinstance(value, bool):
  22         value = 'Tak' if value else 'Nie'
  23     elif isinstance(value, datetime):
  24         value = localtime_str(value)
  25     elif isinstance(value, timedelta):
  26         value = timesince(now() - value)
  27
  28     if not value:
  29         return ''
  30
  31     return format_html(u'<div class="row">'
  32                        u'   <div class="col-sm-3 text-right text-muted">{}</div>'
  33                        u'   <div class="col-sm-9">{}</div>'
  34                        u'</div>', label, value)
  35
  36
  37 @register.simple_tag(takes_context=True)
  38 def get_params_as_hidden(context, *params):
  39     return format_html_join('\n', u'<input type="hidden" name="{}" value="{}">',
  40                             ((param, v) for param in params for v in context['request'].GET.getlist(param, [])))
  41
  42
  43 @register.inclusion_tag('qcg/tags/bootstrap_checkbox.html')
  44 def bootstrap_checkbox(field, label_class=settings.BOOTSTRAP3['horizontal_label_class'],
  45                        field_class=settings.BOOTSTRAP3['horizontal_field_class']):
  46     return {'field': field, 'attrs': flatatt(field.field.widget.attrs),
  47             'label_class': label_class, 'field_class': field_class}
  48
  49
  50 @register.inclusion_tag('qcg/tags/bootstrap_button_group.html')
  51 def bootstrap_button_group(field, label_class=settings.BOOTSTRAP3['horizontal_label_class'],
  52                            field_class=settings.BOOTSTRAP3['horizontal_field_class']):
  53     return {'field': field, 'label_class': label_class, 'field_class': field_class}
  54
  55
  56 @register.filter(needs_autoescape=True)
  57 def format_xml(string, autoescape=None):
  58     esc = conditional_escape if autoescape else lambda x: x
  59     try:
  60         return esc(minidom.parseString(string).toprettyxml(indent='    '))
  61     except ExpatError:
  62         return string