Issues resolved related to connection management and collection nodes:

- Allow to release connection using the database OID (did).
- Generate correct url for the collection nodes.
- Removed the server-type from the collection node module, from the
  generate_browser_collection_node(...) function.
- Show version string, and not version integer in the server properties
  (when connected).

web/pgadmin/browser/collection.py

@@ -13,7 +13,7 @@ from flask import url_for, render_template
 from flask.ext.babel import gettext
 from pgadmin.browser.utils import PgAdminModule, PGChildModule
 from pgadmin.browser import BrowserPluginModule
-from pgadmin.browser.utils import NodeView, PGChildNode, PGChildNodeView
+from pgadmin.browser.utils import PGChildNodeView
 
 @six.add_metaclass(ABCMeta)
 class CollectionNodeModule(PgAdminModule, PGChildModule):
@@ -86,7 +86,7 @@ class CollectionNodeModule(PgAdminModule, PGChildModule):
 
     @property
     def node_type(self):
-        return '%s-%s' % (self.SERVER_TYPE, self.NODE_TYPE)
+        return '%s' % (self.NODE_TYPE)
 
     @property
     def csssnippets(self):
@@ -171,7 +171,7 @@ class CollectionNodeModule(PgAdminModule, PGChildModule):
         return []
 
 
-class CollectionNodeView(NodeView, PGChildNode):
+class CollectionNodeView(PGChildNodeView):
     """
     A PostgreSQL Collection node has specific functions needs to address
     i.e.

web/pgadmin/browser/server_groups/servers/__init__.py

@@ -62,7 +62,7 @@ class ServerModule(sg.ServerGroupPluginModule):
                     self.NODE_TYPE,
                     connected=connected,
                     server_type=manager.server_type if connected else "pg",
-                    server_version=manager.sversion if connected else 0
+                    version=manager.version
                     )
 
     @property
@@ -137,7 +137,7 @@ class ServerNode(PGChildNodeView):
                     self.node_type,
                     connected=connected,
                     server_type=manager.server_type if connected else 'PG',
-                    version=manager.sversion
+                    version=manager.version
                     )
                 )
         return make_json_response(result=res)
@@ -295,7 +295,7 @@ class ServerNode(PGChildNodeView):
                 'comment': server.comment,
                 'role': server.role,
                 'connected': connected,
-                'version': manager.sversion,
+                'version': manager.ver,
                 'server_type': manager.server_type if connected else 'PG'
             }
         )
@@ -522,7 +522,7 @@ class ServerNode(PGChildNodeView):
                                 ),
                             'connected': True,
                             'type': manager.server_type,
-                            'version': manager.sversion
+                            'version': manager.version
                             }
                         )
 

web/pgadmin/browser/templates/browser/js/collection.js

@@ -86,7 +86,15 @@ function($, _, S, pgAdmin, Backbone, Alertify, Backform) {
       j.append(content);
 
       // Fetch Data
-      collections.fetch({reset: true});
+      collections.fetch({reset: true})
+      .error(function(jqxhr, error, message) {
+          Alertify.pgNotifier(
+            error, jqxhr,
+            S(
+              "{{ _("Error fetching the properties - %%s!") }}"
+              ).sprintf(message).value()
+            );
+        });
     },
     generate_url: function(item, type, d) {
       var url = pgAdmin.Browser.URL + '{TYPE}/{REDIRECT}{REF}',
@@ -114,7 +122,7 @@ function($, _, S, pgAdmin, Backbone, Alertify, Backform) {
         });
 
       var args = {
-        'TYPE': self.type,
+        'TYPE': self.node,
         'REDIRECT': (type in opURL ? opURL[type] : type),
         'REF': S('%s/').sprintf(ref).value()
       };

web/pgadmin/utils/driver/psycopg2/__init__.py

@@ -479,7 +479,15 @@ WHERE db.oid = {0}""".format(did))
 
             return self.connections[my_id]
 
-    def release(self, database=None, conn_id=None):
+    def release(self, database=None, conn_id=None, did=None):
+        if did is not None:
+            if did in self.db_info and 'datname' in self.db_info[did]:
+                database = self.db_info[did]['datname']
+                if database is None:
+                    return False
+            else:
+                return False
+
 
         my_id = ('CONN:' + str(conn_id)) if conn_id is not None else \
                 ('DB:' + str(database)) if database is not None else None
@@ -501,7 +509,6 @@ WHERE db.oid = {0}""".format(did))
 
         return True
 
-
 class Driver(BaseDriver):
     """
     class Driver(BaseDriver):