9 from django import template
10 from django.utils.encoding import smart_unicode
11 from django.utils.safestring import mark_safe
12 from forum.models import Question, Answer, QuestionRevision, AnswerRevision, NodeRevision
13 from django.utils.translation import ugettext as _
14 from django.utils.translation import ungettext
15 from django.utils import simplejson
16 from forum import settings
17 from django.template.defaulttags import url as default_url
18 from forum import skins
19 from forum.utils import html
20 from extra_filters import decorated_int
21 from django.core.urlresolvers import reverse
23 register = template.Library()
25 GRAVATAR_TEMPLATE = ('<img class="gravatar" width="%(size)s" height="%(size)s" '
26 'src="http://www.gravatar.com/avatar/%(gravatar_hash)s'
27 '?s=%(size)s&d=%(default)s&r=%(rating)s" '
28 'alt="%(username)s\'s gravatar image" />')
31 def gravatar(user, size):
33 gravatar = user['gravatar']
34 username = user['username']
35 except (TypeError, AttributeError, KeyError):
36 gravatar = user.gravatar
37 username = user.username
38 return mark_safe(GRAVATAR_TEMPLATE % {
40 'gravatar_hash': gravatar,
41 'default': settings.GRAVATAR_DEFAULT_IMAGE,
42 'rating': settings.GRAVATAR_ALLOWED_RATING,
43 'username': template.defaultfilters.urlencode(username),
48 def get_score_badge(user):
49 if user.is_suspended():
50 return _("(suspended)")
52 repstr = decorated_int(user.reputation, "")
54 BADGE_TEMPLATE = '<span class="score" title="%(reputation)s %(reputationword)s">%(repstr)s</span>'
56 BADGE_TEMPLATE = '%s%s' % (BADGE_TEMPLATE, '<span title="%(gold)s %(badgesword)s">'
57 '<span class="badge1">●</span>'
58 '<span class="badgecount">%(gold)s</span>'
61 BADGE_TEMPLATE = '%s%s' % (BADGE_TEMPLATE, '<span title="%(silver)s %(badgesword)s">'
62 '<span class="silver">●</span>'
63 '<span class="badgecount">%(silver)s</span>'
66 BADGE_TEMPLATE = '%s%s' % (BADGE_TEMPLATE, '<span title="%(bronze)s %(badgesword)s">'
67 '<span class="bronze">●</span>'
68 '<span class="badgecount">%(bronze)s</span>'
70 BADGE_TEMPLATE = smart_unicode(BADGE_TEMPLATE, encoding='utf-8', strings_only=False, errors='strict')
71 return mark_safe(BADGE_TEMPLATE % {
72 'reputation' : user.reputation,
75 'silver' : user.silver,
76 'bronze' : user.bronze,
77 'badgesword' : _('badges'),
78 'reputationword' : _('reputation points'),
81 # Usage: {% get_accept_rate node.author %}
83 def get_accept_rate(user):
84 # We get the number of all user's answers.
85 total_answers_count = Answer.objects.filter(author=user).count()
87 # We get the number of the user's accepted answers.
88 accepted_answers_count = Answer.objects.filter(author=user, state_string__contains="(accepted)").count()
90 # In order to represent the accept rate in percentages we divide the number of the accepted answers to the
91 # total answers count and make a hundred multiplication.
93 accept_rate = (float(accepted_answers_count) / float(total_answers_count) * 100)
94 except ZeroDivisionError:
97 # If the user has more than one accepted answers the rate title will be in plural.
98 if accepted_answers_count > 1:
99 accept_rate_number_title = _('%(user)s has %(count)d accepted answers') % {
100 'user' : user.username,
101 'count' : int(accepted_answers_count)
103 # If the user has one accepted answer we'll be using singular.
104 elif accepted_answers_count == 1:
105 accept_rate_number_title = _('%s has one accepted answer') % user.username
106 # This are the only options. Otherwise there are no accepted answers at all.
108 accept_rate_number_title = _('%s has no accepted answers') % smart_unicode(user.username)
111 <span title="%(accept_rate_title)s" class="accept_rate">%(accept_rate_label)s:</span>
112 <span title="%(accept_rate_number_title)s">%(accept_rate)d%</span>
114 'accept_rate_label' : _('accept rate'),
115 'accept_rate_title' : _('Rate of the user\'s accepted answers'),
116 'accept_rate' : int(accept_rate),
117 'accept_rate_number_title' : u'%s' % accept_rate_number_title,
120 return mark_safe(html_output)
123 def get_age(birthday):
124 current_time = datetime.datetime(*time.localtime()[0:6])
126 month = birthday.month
128 diff = current_time - datetime.datetime(year, month, day, 0, 0, 0)
129 return diff.days / 365
132 def diff_date(date, limen=2):
136 now = datetime.datetime.now()
139 hours = int(diff.seconds/3600)
140 minutes = int(diff.seconds/60)
143 if date.year == now.year:
144 return date.strftime(_("%b %d at %H:%M").encode())
146 return date.strftime(_("%b %d '%y at %H:%M").encode())
148 return _('2 days ago')
150 return _('yesterday')
152 return ungettext('%(hr)d ' + _("hour ago"), '%(hr)d ' + _("hours ago"), hours) % {'hr':hours}
153 elif diff.seconds >= 60:
154 return ungettext('%(min)d ' + _("min ago"), '%(min)d ' + _("mins ago"), minutes) % {'min':minutes}
156 return ungettext('%(sec)d ' + _("sec ago"), '%(sec)d ' + _("secs ago"), diff.seconds) % {'sec':diff.seconds}
160 url = skins.find_media_source(url)
162 # Create the URL prefix.
163 url_prefix = settings.FORCE_SCRIPT_NAME + '/m/'
165 # Make sure any duplicate forward slashes are replaced with a single
167 url_prefix = re.sub("/+", "/", url_prefix)
169 url = url_prefix + url
172 class ItemSeparatorNode(template.Node):
173 def __init__(self, separator):
174 sep = separator.strip()
175 if sep[0] == sep[-1] and sep[0] in ('\'', '"'):
178 raise template.TemplateSyntaxError('separator in joinitems tag must be quoted')
181 def render(self, context):
184 class BlockMediaUrlNode(template.Node):
185 def __init__(self, nodelist):
186 self.items = nodelist
188 def render(self, context):
189 prefix = settings.APP_URL + 'm/'
193 for item in self.items:
194 url += item.render(context)
196 url = skins.find_media_source(url)
199 return out.replace(' ', '')
201 @register.tag(name='blockmedia')
202 def blockmedia(parser, token):
204 tagname = token.split_contents()
206 raise template.TemplateSyntaxError("blockmedia tag does not use arguments")
209 nodelist.append(parser.parse(('endblockmedia')))
210 next = parser.next_token()
211 if next.contents == 'endblockmedia':
213 return BlockMediaUrlNode(nodelist)
218 domain = settings.APP_BASE_URL
219 #protocol = getattr(settings, "PROTOCOL", "http")
221 return "%s%s" % (domain, path)
224 class SimpleVarNode(template.Node):
225 def __init__(self, name, value):
227 self.value = template.Variable(value)
229 def render(self, context):
230 context[self.name] = self.value.resolve(context)
233 class BlockVarNode(template.Node):
234 def __init__(self, name, block):
238 def render(self, context):
239 source = self.block.render(context)
240 context[self.name] = source.strip()
244 @register.tag(name='var')
245 def do_var(parser, token):
246 tokens = token.split_contents()[1:]
248 if not len(tokens) or not re.match('^\w+$', tokens[0]):
249 raise template.TemplateSyntaxError("Expected variable name")
252 nodelist = parser.parse(('endvar',))
253 parser.delete_first_token()
254 return BlockVarNode(tokens[0], nodelist)
255 elif len(tokens) == 3:
256 return SimpleVarNode(tokens[0], tokens[2])
258 raise template.TemplateSyntaxError("Invalid number of arguments")
260 class DeclareNode(template.Node):
261 dec_re = re.compile('^\s*(\w+)\s*(:?=)\s*(.*)$')
263 def __init__(self, block):
266 def render(self, context):
267 source = self.block.render(context)
269 for line in source.splitlines():
270 m = self.dec_re.search(line)
272 clist = list(context)
278 d['reverse'] = reverse
282 context[m.group(1).strip()] = eval(m.group(3).strip(), d)
284 logging.error("Error in declare tag, when evaluating: %s" % m.group(3).strip())
288 @register.tag(name='declare')
289 def do_declare(parser, token):
290 nodelist = parser.parse(('enddeclare',))
291 parser.delete_first_token()
292 return DeclareNode(nodelist)
294 # Usage: {% random 1 999 %}
295 # Generates random number in the template
296 class RandomNumberNode(template.Node):
297 # We get the limiting numbers
298 def __init__(self, int_from, int_to):
299 self.int_from = int(int_from)
300 self.int_to = int(int_to)
302 # We generate the random number using the standard python interface
303 def render(self, context):
304 return str(random.randint(self.int_from, self.int_to))
306 @register.tag(name="random")
307 def random_number(parser, token):
308 # Try to get the limiting numbers from the token
310 tag_name, int_from, int_to = token.split_contents()
312 # If we had no success -- raise an exception
313 raise template.TemplateSyntaxError, "%r tag requires exactly two arguments" % token.contents.split()[0]
315 # Call the random Node
316 return RandomNumberNode(int_from, int_to)