adds language tabs to admin

stacks/admin.py

@@ -10,7 +10,8 @@ class StackAdmin(PlaceholderAdmin):
     search_fields = ('name', 'code',)
 
     def change_view(self, request, object_id, form_url='', extra_context=None):
-        extra_context = self.update_language_tab_context(request, obj, context)
+        extra_context = extra_context or {}
+        extra_context.update(self.language_tab_context(request))
         tab_language = request.GET.get("language", None)
         response = super(StackAdmin, self).change_view(request, object_id, extra_context=extra_context)
 
@@ -19,16 +20,19 @@ def change_view(self, request, object_id, form_url='', extra_context=None):
             response._headers['location'] = (location[0], "%s?language=%s" % (location[1], tab_language))
         return response
 
-    def update_language_tab_context(self, request, obj, context=None):
-        if not context:
-            context = {}
-        language = get_language_from_request(request, obj)
-        languages = [lang for lang, __ in settings.LANGUAGES]
-        context.update({
+    def language_tab_context(self, request):
+        language = get_language_from_request(request)
+        languages = [(lang, lang_name) for lang, lang_name in settings.LANGUAGES]
+        context = {
             'language': language,
             'language_tabs': languages,
             'show_language_tabs': len(languages) > 1,
-            })
+        }
         return context
 
+    def placeholder_plugin_filter(self, request, queryset):
+        language = get_language_from_request(request)
+        return queryset.filter(language=language)
+
+
 admin.site.register(Stack, StackAdmin)

stacks/templates/admin/stacks/stack/change_form.html

@@ -1,7 +1,78 @@
 {% extends 'admin/change_form.html' %}
+{% load cms_admin %}
+
+{% block extrahead %}
+{{ block.super }}
+<script type="text/javascript">
+(function($) {
+    $(document).ready(function() {
+		$("#id_name").focus();
+		$("#id_name").change(function() { this._changed = true; });
+		$('#id_code').change(function() { this._changed = true; });
+    });
+	// global functions
+	trigger_lang_button = function(e, url) {
+        console.log("lang switch!");
+		var changed = false;
+		var question = '';
+		var answer = '';
+
+		if($("#id_name")[0]._changed){
+			changed = true;
+		}
+
+		if($("#id_code")[0]._changed){
+			changed = true;
+		}
+
+		if($('iframe').length){
+			changed = true;
+		}
+
+		if (changed) {
+			question = gettext("Are you sure you want to change tabs without saving the page first?");
+			answer = confirm(question);
+		}else{
+			answer = true;
+		}
+
+		if (!answer) {
+			return false;
+		} else {
+			window.location = url;
+		}
+	}
+})(django.jQuery);
+</script>
+<style type="text/css">
+	<!--
+	.language_button {
+		font-weight:bold;
+		margin-bottom:-1px;
+		border-color:#ddd #aaa #ccc #ddd !important;
+		border:1px;
+		background:#fff url('{% cms_admin_icon_base %}nav-bg.gif') repeat-x center bottom !important;
+	}
+
+	#lang_tab_content h2.header {
+		margin:0;
+		padding:2px 5px 3px 5px;
+		font-size:11px;
+		text-align:left;
+		font-weight:bold;
+		background:#7ca0c7 url('{% cms_admin_icon_base %}default-bg.gif') repeat-x left top;
+		color:#fff;
+	}
+
+	.notfilled {
+		color: #808080 !important;
+	}
+	-->
+</style>
+{% endblock %}
 
 {% block field_sets %}
-	<div style="display: none;"><input type="hidden" name="language" value="{{language}}" id="id_language"/></div>
+	<div style="display: none;"><input type="hidden" name="language" value="{{ language }}" id="id_language"/></div>
 
 	{% if show_language_tabs %}
 		<div id="page_form_lang_tabs">
@@ -13,9 +84,12 @@
 		</div>
 	{% endif %}
 
+	<div id="lang_tab_content">
+		{% if show_language_tabs %}
+			<h2 class="header"></h2>
+		{% endif %}
 
-	{% if show_language_tabs %}
-		<h2 class="header"></h2>
-	{% endif %}
-{{ block.super }}
+		{{ block.super }}
+
+	</div>
 {% endblock %}