--- a/src/p4l/utils.py	Tue Sep 03 13:05:55 2013 +0200
+++ b/src/p4l/utils.py	Tue Sep 03 15:23:43 2013 +0200
@@ -56,7 +56,7 @@
 WHERE {
     ?uri skos:inScheme <%s> .
     ?uri skos:prefLabel|skos:label ?label .
-    FILTER (?uri = $root)
+    FILTER (%s)
 }
 """
     query_with_acronym = """
@@ -69,7 +69,7 @@
     ?uri skos:inScheme <%s> .
     ?uri skos:prefLabel|skos:label ?label .
     OPTIONAL { ?uri skos:altLabel ?acro }
-    FILTER (?uri = $root)
+    FILTER (%s)
 }
 """
     if acronyms:
@@ -77,40 +77,45 @@
     else:
         query = query_without_acronym
     res_dict = {}
-    for uri in uri_list:
+    # We build the filter string
+    filter_str = ""
+    for i,uri in enumerate(uri_list):
         res_dict[uri] = ""
-        res = requests.get(
-            settings.SPARQL_QUERY_ENDPOINT,
-            params={'query':query % scheme_uri, 'timeout':10, '$root' : "<"+uri+">"},
-            headers={'accept':'application/sparql-results+json'},
-        )
-        if not res.ok:
-            continue
-        elif res.text:
-            json_res = res.json()
-            if 'results' in json_res and 'bindings' in json_res['results'] and len(json_res['results']['bindings'])>0:
-                # json_res['results']['bindings'] has several languages. If we find french, we save the french label.
-                # If not, we save the first one.
-                tmp_dict = {}
-                first_label = None
-                # We create a temporary dict with the lang code and the label
-                for b in json_res['results']['bindings']:
-                    if lang:
-                        if 'label' in b and 'value' in b['label'] and 'xml:lang' in b['label']:
-                            tmp_dict[b['label']['xml:lang']] = b['label']['value']
-                            if not first_label:
-                                first_label = b['label']['value']
+        if i==0:
+            filter_str = "?uri = <" + uri + ">"
+        else:
+            filter_str += " || ?uri = <" + uri + ">"
+    # We request the labels
+    res = requests.get(
+        settings.SPARQL_QUERY_ENDPOINT,
+        params={'query':query % (scheme_uri, filter_str), 'timeout':10},#, '$root' : "<"+uri+">"},
+        headers={'accept':'application/sparql-results+json'},
+    )
+    if res.ok and res.text:
+        json_res = res.json()
+        if 'results' in json_res and 'bindings' in json_res['results'] and len(json_res['results']['bindings'])>0:
+            # json_res['results']['bindings'] has several languages. If we find french, we save the french label.
+            # If not, we save the first one.
+            tmp_dict = {}
+            first_label = None
+            # We create a temporary dict with the lang code and the label
+            for b in json_res['results']['bindings']:
+                if lang:
+                    if 'label' in b and 'value' in b['label'] and 'xml:lang' in b['label']:
+                        tmp_dict[b['label']['xml:lang']] = b['label']['value']
+                        if not first_label:
+                            first_label = b['label']['value']
+                else:
+                    if 'acro' in b and 'value' in b['acro']:
+                        first_label = b['acro']['value'] + " : " + b['label']['value']
                     else:
-                        if 'acro' in b and 'value' in b['acro']:
-                            first_label = b['acro']['value'] + " : " + b['label']['value']
-                        else:
-                            first_label = b['label']['value']
+                        first_label = b['label']['value']
                 if lang in tmp_dict or first_label:
                     if lang in tmp_dict:
                         label = tmp_dict[lang]
                     else:
                         label = first_label
-                    res_dict[uri] = label
+                    res_dict[b['uri']['value']] = label
     return res_dict