mygpo/web/templatetags/utils.py

   1 from django import template
   2 from django.utils.safestring import mark_safe
   3
   4 from mygpo.web.utils import get_page_list, license_info
   5
   6
   7 register = template.Library()
   8
   9 @register.filter
  10 def lookup(dic, key):
  11     return mark_safe(dic.get(key, ''))
  12
  13 @register.filter
  14 def lookup_list(dict, keys):
  15     for key in keys:
  16         if key in dict:
  17             yield dict[key]
  18
  19
  20 @register.simple_tag
  21 def smartwidthratio(val, min_val, max_val, upper, lower):
  22     if max_val == 0:
  23         return 0
  24     return max(lower, (float(val-min_val) / max_val * upper))
  25
  26 @register.filter
  27 def page_list(cur, start, total, show_max):
  28     return get_page_list(start, total, cur, show_max)
  29
  30
  31 @register.filter
  32 def filter_dict(dic):
  33     return [key for key, val in dic.iteritems() if val]
  34
  35
  36 @register.filter
  37 def append(l, item):
  38     return l + [item]
  39
  40 @register.filter
  41 def remove(l, item):
  42     return [x for x in l if x != item]
  43
  44 @register.filter
  45 def format_time(time):
  46     from mygpo.utils import format_time as _format_time
  47     return mark_safe(_format_time(time))
  48
  49
  50 @register.filter
  51 def is_tuple(obj):
  52     return isinstance(obj, tuple)
  53
  54 @register.filter
  55 def is_list(obj):
  56     return isinstance(obj, list)
  57
  58 @register.filter
  59 def markdown(txt):
  60     import markdown2
  61     html = markdown2.markdown(txt)
  62     return mark_safe(html)
  63
  64
  65 @register.filter
  66 def nbsp(s):
  67     """ collapses multiple whitespaces and replaces them with &nbsp; """
  68     import re
  69     s = re.sub("\s+", "&nbsp;", s)
  70     return mark_safe(s)
  71
  72
  73 @register.filter
  74 def license_name(license_url):
  75     """ returns a "pretty" license name for a license URL """
  76
  77     info = license_info(license_url)
  78
  79     if info.name:
  80         return '%s %s' % (info.name, info.version or '')
  81
  82     return info.url
  83
  84
  85 @register.filter
  86 def urlquote(s):
  87     """ makes urllib.quote_plus available as a template filter """
  88     import urllib
  89     if isinstance(s, unicode):
  90         s = s.encode('utf-8')
  91     return mark_safe(urllib.quote_plus(s))