Clear the node cache, when an node is created/updated to make sure - we

will always have latest data related to that type of node. Also, fixed
the cache_level for different node types.

This commit also contains fixes for the following issue:
* In extension module - use the 'node-list-by-name' instead of using a
  custom 'node-ajax-options' control, and removed redundant template
  schemas from it.
* When we tries to destroy the select2 object from
  Select2Cell/Select2Control while releasing the properties view,
  sometimes select2 can not find the instance related it for some
  unknown reason. Hence - before removing it we will check for manual
  instance existance using $.data('select2').
* When we traverse through the browser tree nodes very quickly, it tries
  to remove the object before it gets created completely, and results
  into an exception.
* Icon in the select2 drop down list was not visible due to some CSS
  issues.

Apart of that, we will generate two new browser events -
'pgadmin-node:created:<NODE-TYPE>', 'pgadmin-node:updated:<NODE-TYPE>'
whenever a new node is created, or an existing node will be updated.

web/pgadmin/browser/server_groups/servers/databases/extensions/templates/extensions/js/extensions.js

@@ -173,27 +173,20 @@ function($, _, S, pgAdmin, pgBrowser) {
           },
           {
             id: 'owner', label:'{{ _('Owner') }}', control: 'node-list-by-name',
-            mode: ['properties'], node: 'role', cell: 'string'
+            mode: ['properties'], node: 'role', cell: 'string',
+            cache_level: 'server'
           },
           {
-            id: 'schema', label: '{{ _('Schema')}}', type: 'text', control: 'node-ajax-options',
-            mode: ['properties', 'create', 'edit'], group: '{{ _('Definition')}}', deps: ['relocatable'],
-            url: 'schemas', first_empty: true, disabled: function(m) {
-
+            id: 'schema', label: '{{ _('Schema')}}', type: 'text',
+            control: 'node-list-by-name', group: '{{ _('Definition')}}',
+            mode: ['properties', 'create', 'edit'], deps: ['relocatable'],
+            node: 'schema', first_empty: true,
+            disabled: function(m) {
               /*
                * enable or disable schema field if model's relocatable
                * attribute is True or False
                */
               return (m.has('relocatable') ? !m.get('relocatable') : false);
-            },
-            transform: function(data) {
-              var res = [];
-              if (data && _.isArray(data)) {
-                _.each(data, function(d) {
-                  res.push({label: d.schema, value: d.schema});
-                })
-              }
-              return res;
             }
           },
           {

web/pgadmin/browser/server_groups/servers/databases/extensions/templates/extensions/sql/schemas.sql

@@ -1,3 +0,0 @@
-{#===================fetch all schemas==========================#}
-SELECT nspname As schema FROM pg_namespace
-    ORDER BY nspname

web/pgadmin/browser/server_groups/servers/databases/schemas/collations/templates/collation/js/collation.js

@@ -62,7 +62,7 @@ function($, _, S, pgAdmin, pgBrowser, alertify) {
           lc_collate: undefined,
           description: undefined
         },
-        
+
         // Default values!
         initialize: function(attrs, args) {
           var isNew = (_.size(attrs) === 0);
@@ -76,7 +76,7 @@ function($, _, S, pgAdmin, pgBrowser, alertify) {
           }
           pgAdmin.Browser.Node.Model.prototype.initialize.apply(this, arguments);
         },
-        
+
         schema: [{
           id: 'name', label: '{{ _('Name') }}', cell: 'string',
           type: 'text', mode: ['properties', 'create', 'edit'],
@@ -87,7 +87,8 @@ function($, _, S, pgAdmin, pgBrowser, alertify) {
         },{
           id: 'owner', label:'{{ _('Owner') }}', cell: 'string',
           type: 'text', mode: ['properties', 'create', 'edit'],
-          disabled: 'inSchema', control: 'node-list-by-name', node: 'role'
+          disabled: 'inSchema', control: 'node-list-by-name',
+          node: 'role'
         },{
           id: 'schema', label:'{{ _('Schema') }}', cell: 'string',
           type: 'text', mode: ['create', 'edit'], node: 'schema',

web/pgadmin/browser/server_groups/servers/databases/schemas/domains/templates/domains/js/domains.js

@@ -205,10 +205,12 @@ function($, _, S, pgAdmin, pgBrowser, alertify) {
           id: 'description', label:'{{ _('Comment') }}', cell: 'string',
           type: 'multiline'
         },{
-          id: 'basetype', label:'{{ _('Base type') }}', cell: 'string', control: 'node-ajax-options',
-          type: 'text', mode:['properties', 'create', 'edit'], group: '{{ _('Definition') }}', url: 'get_types',
-          disabled: function(m) { return !m.isNew(); }, first_empty: true,
-          transform: function(d){
+          id: 'basetype', label:'{{ _('Base type') }}', cell: 'string',
+          control: 'node-ajax-options', type: 'text', url: 'get_types',
+          mode:['properties', 'create', 'edit'], group: '{{ _('Definition') }}',
+          cache_level: 'database', cache_node: 'schema', disabled: function(m) {
+            return !m.isNew();
+          }, first_empty: true, transform: function(d) {
             this.model.type_options =  d;
             return d;
           }
@@ -279,8 +281,10 @@ function($, _, S, pgAdmin, pgBrowser, alertify) {
             'size': 'small'
           }
         },{
-          id: 'collname', label:'{{ _('Collation') }}', cell: 'string', control: 'node-ajax-options',
-          type: 'text', group: '{{ _('Definition') }}', url: 'get_collations', disabled: function(m) {
+          id: 'collname', label:'{{ _('Collation') }}', cell: 'string',
+          control: 'node-ajax-options', type: 'text', url: 'get_collations',
+          group: '{{ _('Definition') }}', cache_level: 'database',
+          cache_node: 'schema', disabled: function(m) {
             return !m.isNew();
           }
         },{

web/pgadmin/browser/server_groups/servers/databases/schemas/fts_dictionaries/templates/fts_dictionary/js/fts_dictionary.js

@@ -126,14 +126,15 @@ function($, _, S, pgAdmin, pgBrowser, alertify) {
         },{
           id: 'schema', label: '{{ _('Schema')}}', cell: 'string',
           type: 'text', mode: ['create','edit'], node: 'schema',
-          control: 'node-list-by-id'
+          cache_node: 'database', control: 'node-list-by-id'
         },{
           id: 'description', label:'{{ _('Comment') }}', cell: 'string',
           type: 'multiline', cellHeaderClasses: 'width_percent_50'
         },{
           id: 'template', label: '{{ _('Template')}}',type: 'text',
           disabled: function(m) { return !m.isNew(); }, url: 'fetch_templates',
-           group: '{{ _('Definition') }}',control: 'node-ajax-options'
+          group: '{{ _('Definition') }}', control: 'node-ajax-options',
+          cache_node: 'database'
         },{
           id: 'options', label: '{{ _('Option') }}', type: 'collection',
           group: '{{ _('Options') }}', control: 'unique-col-collection',
@@ -182,4 +183,4 @@ function($, _, S, pgAdmin, pgBrowser, alertify) {
   }
 
 return pgBrowser.Nodes['coll-fts_dictionary'];
-});
+});

web/pgadmin/browser/server_groups/servers/databases/schemas/fts_parser/templates/fts_parser/js/fts_parser.js

@@ -93,27 +93,33 @@ function($, _, S, pgAdmin, pgBrowser, alertify) {
           id: 'prsstart', label: '{{ _('Start function')}}',
           type: 'text', disabled: function(m) { return !m.isNew(); },
           control: 'node-ajax-options', url: 'start_functions',
-          group: '{{ _('Definition') }}'
+          group: '{{ _('Definition') }}', cache_level: 'database',
+          cache_node: 'schema'
         },{
           id: 'prstoken', label: '{{ _('Get next token function')}}',
           type: 'text', disabled: function(m) { return !m.isNew(); },
           control: 'node-ajax-options', url: 'token_functions',
-          group: '{{ _('Definition') }}'
+          group: '{{ _('Definition') }}', cache_level: 'database',
+          cache_node: 'schema'
         },{
           id: 'prsend', label: '{{ _('End function')}}',
           type: 'text', disabled: function(m) { return !m.isNew(); },
           control: 'node-ajax-options', url: 'end_functions',
-          group: '{{ _('Definition') }}'
+          group: '{{ _('Definition') }}', cache_level: 'database',
+          cache_node: 'schema',
+          cache_node: 'schema'
         },{
           id: 'prslextype', label: '{{ _('Lextypes function')}}',
           type: 'text', disabled: function(m) { return !m.isNew(); },
           control: 'node-ajax-options', url: 'lextype_functions',
-          group: '{{ _('Definition') }}'
+          group: '{{ _('Definition') }}', cache_level: 'database',
+          cache_node: 'schema'
         },{
           id: 'prsheadline', label: '{{ _('Headline function')}}',
           type: 'text', disabled: function(m) { return !m.isNew(); },
           control: 'node-ajax-options', url: 'headline_functions',
-          group: '{{ _('Definition') }}'
+          group: '{{ _('Definition') }}', cache_level: 'database',
+          cache_node: 'schema'
         }],
 
         /*
@@ -192,4 +198,4 @@ function($, _, S, pgAdmin, pgBrowser, alertify) {
   }
 
 return pgBrowser.Nodes['coll-fts_parser'];
-});
+});

web/pgadmin/browser/server_groups/servers/databases/schemas/fts_templates/templates/fts_template/js/fts_templates.js

@@ -83,13 +83,16 @@ function($, _, S, pgAdmin, pgBrowser, alertify) {
           id: 'description', label:'{{ _('Comment') }}', cell: 'string',
           type: 'multiline', cellHeaderClasses: 'width_percent_50'
         },{
-          id: 'tmplinit', label: '{{ _('Init function')}}', group: '{{ _('Definition') }}',
-          type: 'text', disabled: function(m) { return !m.isNew(); },
-          control: 'node-ajax-options', url: 'get_init'
+          id: 'tmplinit', label: '{{ _('Init function')}}',
+          group: '{{ _('Definition') }}', type: 'text', disabled: function(m) {
+            return !m.isNew();
+          }, control: 'node-ajax-options', url: 'get_init',
+          cache_level: 'database', cache_node: 'schema'
         },{
           id: 'tmpllexize', label: '{{ _('Lexize function')}}', group: '{{ _('Definition') }}',
           type: 'text', disabled: function(m) { return !m.isNew(); },
-          control: 'node-ajax-options', url: 'get_lexize'
+          control: 'node-ajax-options', url: 'get_lexize', cache_level: 'database',
+          cache_node: 'schema'
         }],
 
         /*
@@ -132,4 +135,4 @@ function($, _, S, pgAdmin, pgBrowser, alertify) {
   }
 
 return pgBrowser.Nodes['coll-fts_template'];
-});
+});

web/pgadmin/browser/server_groups/servers/databases/templates/databases/js/databases.js

@@ -257,12 +257,12 @@ function($, _, S, pgAdmin, pgBrowser, Alertify) {
           id: 'encoding', label: '{{ _('Encoding') }}',
           editable: false, type: 'text', group: 'Definition',
           disabled: function(m) { return !m.isNew(); }, url: 'get_encodings',
-          control: 'node-ajax-options'
+          control: 'node-ajax-options', cache_level: 'server'
         },{
           id: 'template', label: '{{ _('Template') }}',
           editable: false, type: 'text', group: 'Definition',
           disabled: function(m) { return !m.isNew(); },
-          control: 'node-list-by-name', node: 'database'
+          control: 'node-list-by-name', node: 'database', cache_level: 'server'
         },{
           id: 'spcname', label: '{{ _('Tablespace') }}',
           editable: false, type: 'text', group: 'Definition',
@@ -275,12 +275,12 @@ function($, _, S, pgAdmin, pgBrowser, Alertify) {
           id: 'datcollate', label: '{{ _('Collation') }}',
           editable: false, type: 'text', group: 'Definition',
           disabled: function(m) { return !m.isNew(); }, url: 'get_ctypes',
-          control: 'node-ajax-options'
+          control: 'node-ajax-options', cache_level: 'server'
         },{
           id: 'datctype', label: '{{ _('Character Type') }}',
           editable: false, type: 'text', group: 'Definition',
           disabled: function(m) { return !m.isNew(); }, url: 'get_ctypes',
-          control: 'node-ajax-options'
+          control: 'node-ajax-options', cache_level: 'server'
         },{
           id: 'datconnlimit', label: '{{ _('Connection Limit') }}',
           editable: false, type: 'int', group: 'Definition', min: -1

web/pgadmin/browser/server_groups/servers/databases/templates/databases/sql/9.1_plus/nodes.sql

@@ -3,7 +3,7 @@ SELECT
     has_database_privilege(db.oid, 'CREATE') as cancreate, datdba as owner
 FROM
     pg_database db
-    LEFT OUTER JOIN pg_tablespace ta ON db.dattablespace = ta.oid{% if did %}
+    LEFT OUTER JOIN pg_tablespace ta ON db.dattablespace = ta.oid
 WHERE {% if did %}
 db.oid = {{ did|qtLiteral }}::OID{% else %}
 db.oid > {{ last_system_oid }}::OID