Search widget with JSONP support. Sample included.

[wolnelektury.git] / apps / catalogue / views.py

diff --git a/apps/catalogue/views.py b/apps/catalogue/views.py
index de9d0b2..e7df9bc 100644 (file)
--- a/apps/catalogue/views.py
+++ b/apps/catalogue/views.py
@@ -45,6 +45,16 @@ class LazyEncoder(simplejson.JSONEncoder):
             return force_unicode(obj)
         return obj
 
+# shortcut for JSON reponses
+class JSONResponse(HttpResponse):
+    def __init__(self, data={}, callback=None, **kwargs):
+        # get rid of mimetype
+        kwargs.pop('mimetype', None)
+        data = simplejson.dumps(data)
+        if callback:
+            data = callback + "(" + data + ");" 
+        super(JSONResponse, self).__init__(data, mimetype="application/json", **kwargs)
+
 
 def main_page(request):
     if request.user.is_authenticated():
@@ -304,7 +314,6 @@ def _tags_starting_with(prefix, user=None):
         tags = tags.filter(~Q(category='book') & (~Q(category='set') | Q(user=user)))
     else:
         tags = tags.filter(~Q(category='book') & ~Q(category='set'))
-
     return list(books) + list(tags) + list(book_stubs)
 
 
@@ -321,7 +330,7 @@ def _get_result_type(match):
         type = 'book'
     else:
         type = match.category
-    return dict(models.TAG_CATEGORIES)[type]
+    return type
 
 
 
@@ -379,8 +388,29 @@ def tags_starting_with(request):
     # Prefix must have at least 2 characters
     if len(prefix) < 2:
         return HttpResponse('')
-
-    return HttpResponse('\n'.join(tag.name for tag in _tags_starting_with(prefix, request.user)))
+    tags_list = []
+    result = ""   
+    for tag in _tags_starting_with(prefix, request.user):
+        if not tag.name in tags_list:
+            result += "\n" + tag.name
+            tags_list.append(tag.name)
+    return HttpResponse(result)
+
+def json_tags_starting_with(request, callback=None):
+    # Callback for JSONP
+    prefix = request.GET.get('q', '')
+    callback = request.GET.get('callback', '')
+    # Prefix must have at least 2 characters
+    if len(prefix) < 2:
+        return HttpResponse('')
+    tags_list = []
+    result = ""   
+    for tag in _tags_starting_with(prefix, request.user):
+        if not tag.name in tags_list:
+            result += "\n" + tag.name
+            tags_list.append(tag.name)
+    dict_result = {"matches": tags_list}
+    return JSONResponse(dict_result, callback)
 
 # ====================
 # = Shelf management =