X-Git-Url: http://git.ithinksw.org/philo.git/blobdiff_plain/bf382c2dc051c451711c65b1967aecc65ede74e5..bf7348280872f3e17f6cb766f27d57c41d9e2ae0:/admin/widgets.py

diff --git a/admin/widgets.py b/admin/widgets.py
index f53c5b7..fb13ac7 100644
--- a/admin/widgets.py
+++ b/admin/widgets.py
@@ -1,33 +1,68 @@
 from django import forms
 from django.conf import settings
+from django.contrib.admin.widgets import FilteredSelectMultiple, url_params_from_lookup_dict
 from django.utils.translation import ugettext as _
-from django.utils.html import escape
-from django.utils.text import truncate_words
 from django.utils.safestring import mark_safe
+from django.utils.text import truncate_words
+from django.utils.html import escape
 
 
 class ModelLookupWidget(forms.TextInput):
 	# is_hidden = False
 	
-	def __init__(self, content_type, attrs=None):
+	def __init__(self, content_type, attrs=None, limit_choices_to=None):
 		self.content_type = content_type
+		self.limit_choices_to = limit_choices_to
 		super(ModelLookupWidget, self).__init__(attrs)
 	
 	def render(self, name, value, attrs=None):
 		related_url = '../../../%s/%s/' % (self.content_type.app_label, self.content_type.model)
+		params = url_params_from_lookup_dict(self.limit_choices_to)
+		if params:
+			url = u'?' + u'&'.join([u'%s=%s' % (k, v) for k, v in params.items()])
+		else:
+			url = u''
 		if attrs is None:
 			attrs = {}
-		if not attrs.has_key('class'):
+		if "class" not in attrs:
 			attrs['class'] = 'vForeignKeyRawIdAdminField'
-		output = super(ModelLookupWidget, self).render(name, value, attrs)
-		output += '<a href="%s" class="related-lookup" id="lookup_id_%s" onclick="return showRelatedObjectLookupPopup(this);">' % (related_url, name)
-		output += '<img src="%simg/admin/selector-search.gif" width="16" height="16" alt="%s" />' % (settings.ADMIN_MEDIA_PREFIX, _('Lookup'))
-		output += '</a>'
+		output = [super(ModelLookupWidget, self).render(name, value, attrs)]
+		output.append('<a href="%s%s" class="related-lookup" id="lookup_id_%s" onclick="return showRelatedObjectLookupPopup(this);">' % (related_url, url, name))
+		output.append('<img src="%simg/admin/selector-search.gif" width="16" height="16" alt="%s" />' % (settings.ADMIN_MEDIA_PREFIX, _('Lookup')))
+		output.append('</a>')
 		if value:
 			value_class = self.content_type.model_class()
 			try:
 				value_object = value_class.objects.get(pk=value)
-				output += '&nbsp;<strong>%s</strong>' % escape(truncate_words(value_object, 14))
+				output.append('&nbsp;<strong>%s</strong>' % escape(truncate_words(value_object, 14)))
 			except value_class.DoesNotExist:
 				pass
-		return mark_safe(output)
\ No newline at end of file
+		return mark_safe(u''.join(output))
+
+
+class TagFilteredSelectMultiple(FilteredSelectMultiple):
+	"""
+	A SelectMultiple with a JavaScript filter interface.
+
+	Note that the resulting JavaScript assumes that the jsi18n
+	catalog has been loaded in the page
+	"""
+	class Media:
+		js = (
+			settings.ADMIN_MEDIA_PREFIX + "js/core.js",
+			settings.ADMIN_MEDIA_PREFIX + "js/SelectBox.js",
+			settings.ADMIN_MEDIA_PREFIX + "js/SelectFilter2.js",
+			settings.ADMIN_MEDIA_PREFIX + "js/TagCreation.js",
+		)
+
+	def render(self, name, value, attrs=None, choices=()):
+		if attrs is None: attrs = {}
+		attrs['class'] = 'selectfilter'
+		if self.is_stacked: attrs['class'] += 'stacked'
+		output = [super(FilteredSelectMultiple, self).render(name, value, attrs, choices)]
+		output.append(u'<script type="text/javascript">addEvent(window, "load", function(e) {')
+		# TODO: "id_" is hard-coded here. This should instead use the correct
+		# API to determine the ID dynamically.
+		output.append(u'SelectFilter.init("id_%s", "%s", %s, "%s"); tagCreation.init("id_%s"); });</script>\n' % \
+			(name, self.verbose_name.replace('"', '\\"'), int(self.is_stacked), settings.ADMIN_MEDIA_PREFIX, name))
+		return mark_safe(u''.join(output))
\ No newline at end of file