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@zen4ever
Created June 19, 2012 08:56
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SpanWidget
class SpanWidget(forms.Widget):
"""
Renders a value wrapped in a <span> tag.
Based on Killarny, http://www.djangosnippets.org/snippets/1340/
Modified to place the value in a hidden control, so that it
returns a value in the GET/POST response.
"""
def __init__(self, attrs=None, choices=(), url=False):
super(SpanWidget, self).__init__(attrs=attrs)
self.url = url
self.choices = list(choices)
def get_hidden(self, name, value):
return "<input type='hidden' name='%s' value='%s' />" \
% (name, escape(value).replace('\n','&#10;').replace('\r','&#13;'))
def get_render_value(self, value):
render_value = value
if self.choices:
render_value = dict(self.choices).get(value, '')
return render_value
def render(self, name, value, attrs=None):
final_attrs = self.build_attrs(attrs, name=name)
render_value = self.get_render_value(value)
if hasattr(value, 'url'):
return mark_safe(u"<span%s><a href='%s'>%s</a></span>" % (
forms.util.flatatt(final_attrs),
escape(striptags(unicode(value.url))),
escape(striptags(unicode(value.name.rsplit('/', 1)[1]))),
))
hidden = self.get_hidden(name, value)
return mark_safe(u"<span%s>%s%s</span>" % (
forms.util.flatatt(final_attrs),
escape(striptags(unicode(render_value))),
hidden))
class URLSpanWidget(SpanWidget):
def render(self, name, value, attrs=None):
final_attrs = self.build_attrs(attrs, name=name)
render_value = self.get_render_value(value)
hidden = self.get_hidden(name, value)
render_value = value[:55]
if render_value != value:
render_value += "..."
return mark_safe(u"<span%s><a href='%s'>%s%s</a></span>" % (
forms.util.flatatt(final_attrs),
escape(striptags(unicode(value))),
escape(striptags(unicode(render_value))),
hidden,
))
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