diff options
Diffstat (limited to 'tagging/templatetags/.svn/text-base/tagging_tags.py.svn-base')
| -rw-r--r-- | tagging/templatetags/.svn/text-base/tagging_tags.py.svn-base | 231 |
1 files changed, 0 insertions, 231 deletions
diff --git a/tagging/templatetags/.svn/text-base/tagging_tags.py.svn-base b/tagging/templatetags/.svn/text-base/tagging_tags.py.svn-base deleted file mode 100644 index 11d31cc..0000000 --- a/tagging/templatetags/.svn/text-base/tagging_tags.py.svn-base +++ /dev/null @@ -1,231 +0,0 @@ -from django.db.models import get_model -from django.template import Library, Node, TemplateSyntaxError, Variable, resolve_variable -from django.utils.translation import ugettext as _ - -from tagging.models import Tag, TaggedItem -from tagging.utils import LINEAR, LOGARITHMIC - -register = Library() - -class TagsForModelNode(Node): - def __init__(self, model, context_var, counts): - self.model = model - self.context_var = context_var - self.counts = counts - - def render(self, context): - model = get_model(*self.model.split('.')) - if model is None: - raise TemplateSyntaxError(_('tags_for_model tag was given an invalid model: %s') % self.model) - context[self.context_var] = Tag.objects.usage_for_model(model, counts=self.counts) - return '' - -class TagCloudForModelNode(Node): - def __init__(self, model, context_var, **kwargs): - self.model = model - self.context_var = context_var - self.kwargs = kwargs - - def render(self, context): - model = get_model(*self.model.split('.')) - if model is None: - raise TemplateSyntaxError(_('tag_cloud_for_model tag was given an invalid model: %s') % self.model) - context[self.context_var] = \ - Tag.objects.cloud_for_model(model, **self.kwargs) - return '' - -class TagsForObjectNode(Node): - def __init__(self, obj, context_var): - self.obj = Variable(obj) - self.context_var = context_var - - def render(self, context): - context[self.context_var] = \ - Tag.objects.get_for_object(self.obj.resolve(context)) - return '' - -class TaggedObjectsNode(Node): - def __init__(self, tag, model, context_var): - self.tag = Variable(tag) - self.context_var = context_var - self.model = model - - def render(self, context): - model = get_model(*self.model.split('.')) - if model is None: - raise TemplateSyntaxError(_('tagged_objects tag was given an invalid model: %s') % self.model) - context[self.context_var] = \ - TaggedItem.objects.get_by_model(model, self.tag.resolve(context)) - return '' - -def do_tags_for_model(parser, token): - """ - Retrieves a list of ``Tag`` objects associated with a given model - and stores them in a context variable. - - Usage:: - - {% tags_for_model [model] as [varname] %} - - The model is specified in ``[appname].[modelname]`` format. - - Extended usage:: - - {% tags_for_model [model] as [varname] with counts %} - - If specified - by providing extra ``with counts`` arguments - adds - a ``count`` attribute to each tag containing the number of - instances of the given model which have been tagged with it. - - Examples:: - - {% tags_for_model products.Widget as widget_tags %} - {% tags_for_model products.Widget as widget_tags with counts %} - - """ - bits = token.contents.split() - len_bits = len(bits) - if len_bits not in (4, 6): - raise TemplateSyntaxError(_('%s tag requires either three or five arguments') % bits[0]) - if bits[2] != 'as': - raise TemplateSyntaxError(_("second argument to %s tag must be 'as'") % bits[0]) - if len_bits == 6: - if bits[4] != 'with': - raise TemplateSyntaxError(_("if given, fourth argument to %s tag must be 'with'") % bits[0]) - if bits[5] != 'counts': - raise TemplateSyntaxError(_("if given, fifth argument to %s tag must be 'counts'") % bits[0]) - if len_bits == 4: - return TagsForModelNode(bits[1], bits[3], counts=False) - else: - return TagsForModelNode(bits[1], bits[3], counts=True) - -def do_tag_cloud_for_model(parser, token): - """ - Retrieves a list of ``Tag`` objects for a given model, with tag - cloud attributes set, and stores them in a context variable. - - Usage:: - - {% tag_cloud_for_model [model] as [varname] %} - - The model is specified in ``[appname].[modelname]`` format. - - Extended usage:: - - {% tag_cloud_for_model [model] as [varname] with [options] %} - - Extra options can be provided after an optional ``with`` argument, - with each option being specified in ``[name]=[value]`` format. Valid - extra options are: - - ``steps`` - Integer. Defines the range of font sizes. - - ``min_count`` - Integer. Defines the minimum number of times a tag must have - been used to appear in the cloud. - - ``distribution`` - One of ``linear`` or ``log``. Defines the font-size - distribution algorithm to use when generating the tag cloud. - - Examples:: - - {% tag_cloud_for_model products.Widget as widget_tags %} - {% tag_cloud_for_model products.Widget as widget_tags with steps=9 min_count=3 distribution=log %} - - """ - bits = token.contents.split() - len_bits = len(bits) - if len_bits != 4 and len_bits not in range(6, 9): - raise TemplateSyntaxError(_('%s tag requires either three or between five and seven arguments') % bits[0]) - if bits[2] != 'as': - raise TemplateSyntaxError(_("second argument to %s tag must be 'as'") % bits[0]) - kwargs = {} - if len_bits > 5: - if bits[4] != 'with': - raise TemplateSyntaxError(_("if given, fourth argument to %s tag must be 'with'") % bits[0]) - for i in range(5, len_bits): - try: - name, value = bits[i].split('=') - if name == 'steps' or name == 'min_count': - try: - kwargs[str(name)] = int(value) - except ValueError: - raise TemplateSyntaxError(_("%(tag)s tag's '%(option)s' option was not a valid integer: '%(value)s'") % { - 'tag': bits[0], - 'option': name, - 'value': value, - }) - elif name == 'distribution': - if value in ['linear', 'log']: - kwargs[str(name)] = {'linear': LINEAR, 'log': LOGARITHMIC}[value] - else: - raise TemplateSyntaxError(_("%(tag)s tag's '%(option)s' option was not a valid choice: '%(value)s'") % { - 'tag': bits[0], - 'option': name, - 'value': value, - }) - else: - raise TemplateSyntaxError(_("%(tag)s tag was given an invalid option: '%(option)s'") % { - 'tag': bits[0], - 'option': name, - }) - except ValueError: - raise TemplateSyntaxError(_("%(tag)s tag was given a badly formatted option: '%(option)s'") % { - 'tag': bits[0], - 'option': bits[i], - }) - return TagCloudForModelNode(bits[1], bits[3], **kwargs) - -def do_tags_for_object(parser, token): - """ - Retrieves a list of ``Tag`` objects associated with an object and - stores them in a context variable. - - Usage:: - - {% tags_for_object [object] as [varname] %} - - Example:: - - {% tags_for_object foo_object as tag_list %} - """ - bits = token.contents.split() - if len(bits) != 4: - raise TemplateSyntaxError(_('%s tag requires exactly three arguments') % bits[0]) - if bits[2] != 'as': - raise TemplateSyntaxError(_("second argument to %s tag must be 'as'") % bits[0]) - return TagsForObjectNode(bits[1], bits[3]) - -def do_tagged_objects(parser, token): - """ - Retrieves a list of instances of a given model which are tagged with - a given ``Tag`` and stores them in a context variable. - - Usage:: - - {% tagged_objects [tag] in [model] as [varname] %} - - The model is specified in ``[appname].[modelname]`` format. - - The tag must be an instance of a ``Tag``, not the name of a tag. - - Example:: - - {% tagged_objects comedy_tag in tv.Show as comedies %} - - """ - bits = token.contents.split() - if len(bits) != 6: - raise TemplateSyntaxError(_('%s tag requires exactly five arguments') % bits[0]) - if bits[2] != 'in': - raise TemplateSyntaxError(_("second argument to %s tag must be 'in'") % bits[0]) - if bits[4] != 'as': - raise TemplateSyntaxError(_("fourth argument to %s tag must be 'as'") % bits[0]) - return TaggedObjectsNode(bits[1], bits[3], bits[5]) - -register.tag('tags_for_model', do_tags_for_model) -register.tag('tag_cloud_for_model', do_tag_cloud_for_model) -register.tag('tags_for_object', do_tags_for_object) -register.tag('tagged_objects', do_tagged_objects) |