Extract the tests and refactor some of the methods.

Extract some of the ACI Tree functionalities, and decouple it from the main source. Also - create some abstractions from the repeated code around the enable/disable the schema children object create/edit/delete functionalities, and also created the dialog wrappers for backup and restore dialogs. Reviewed by: Khushboo and Ashesh Refactored by: Ashesh
2025-02-25 18:55:31 -06:00 · 2018-06-05 16:06:19 +05:30
parent 920934759f
commit 7dd6372eeb
75 changed files with 5186 additions and 1939 deletions
--- a/web/pgadmin/browser/server_groups/servers/databases/schemas/collations/static/js/collation.js
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/collations/static/js/collation.js
@@ -1,8 +1,8 @@
 define('pgadmin.node.collation', [
  'sources/gettext', 'sources/url_for', 'jquery', 'underscore',
  'underscore.string', 'sources/pgadmin', 'pgadmin.browser',
-  'pgadmin.browser.collection',
-], function(gettext, url_for, $, _, S, pgAdmin, pgBrowser) {
+  'pgadmin.node.schema.dir/child', 'pgadmin.browser.collection',
+], function(gettext, url_for, $, _, S, pgAdmin, pgBrowser, schemaChild) {

  if (!pgBrowser.Nodes['coll-collation']) {
    pgAdmin.Browser.Nodes['coll-collation'] =
@@ -15,7 +15,7 @@ define('pgadmin.node.collation', [
  }

  if (!pgBrowser.Nodes['collation']) {
-    pgAdmin.Browser.Nodes['collation'] = pgBrowser.Node.extend({
+    pgAdmin.Browser.Nodes['collation'] = schemaChild.SchemaChildNode.extend({
      type: 'collation',
      sqlAlterHelp: 'sql-altercollation.html',
      sqlCreateHelp: 'sql-createcollation.html',
@@ -222,34 +222,6 @@ define('pgadmin.node.collation', [
          return true;
        },
      }),
-      canCreate: function(itemData, item, data) {
-          //If check is false then , we will allow create menu
-        if (data && data.check == false)
-          return true;
-
-        var t = pgBrowser.tree, i = item, d = itemData;
-          // To iterate over tree to check parent node
-        while (i) {
-            // If it is schema then allow user to create collation
-          if (_.indexOf(['schema'], d._type) > -1)
-            return true;
-
-          if ('coll-collation' == d._type) {
-              //Check if we are not child of catalog
-            var prev_i = t.hasParent(i) ? t.parent(i) : null,
-              prev_d = prev_i ? t.itemData(prev_i) : null;
-            if( prev_d._type == 'catalog') {
-              return false;
-            } else {
-              return true;
-            }
-          }
-          i = t.hasParent(i) ? t.parent(i) : null;
-          d = i ? t.itemData(i) : null;
-        }
-          // by default we do not want to allow create menu
-        return true;
-      },
    });

  }
--- a/web/pgadmin/browser/server_groups/servers/databases/schemas/domains/static/js/domain.js
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/domains/static/js/domain.js
@@ -2,9 +2,10 @@
 define('pgadmin.node.domain', [
  'sources/gettext', 'sources/url_for', 'jquery', 'underscore', 'backbone',
  'sources/pgadmin', 'pgadmin.browser', 'pgadmin.backform', 'pgadmin.backgrid',
-  'pgadmin.browser.collection',
+  'pgadmin.node.schema.dir/child', 'pgadmin.browser.collection',
 ], function(
-  gettext, url_for, $, _, Backbone, pgAdmin, pgBrowser, Backform, Backgrid
+  gettext, url_for, $, _, Backbone, pgAdmin, pgBrowser, Backform, Backgrid,
+  schemaChild
 ) {

  // Define Domain Collection Node
@@ -79,7 +80,7 @@ define('pgadmin.node.domain', [

  // Domain Node
  if (!pgBrowser.Nodes['domain']) {
-    pgBrowser.Nodes['domain'] = pgBrowser.Node.extend({
+    pgBrowser.Nodes['domain'] = schemaChild.SchemaChildNode.extend({
      type: 'domain',
      sqlAlterHelp: 'sql-alterdomain.html',
      sqlCreateHelp: 'sql-createdomain.html',
@@ -88,7 +89,6 @@ define('pgadmin.node.domain', [
      collection_type: 'coll-domain',
      hasSQL: true,
      hasDepends: true,
-      parent_type: ['schema', 'catalog'],
      Init: function() {
        // Avoid mulitple registration of menus
        if (this.initialized)
@@ -118,8 +118,6 @@ define('pgadmin.node.domain', [
        ]);

      },
-      canDrop: pgBrowser.Nodes['schema'].canChildDrop,
-      canDropCascade: pgBrowser.Nodes['schema'].canChildDrop,
      // Domain Node Model
      model: pgBrowser.Node.Model.extend({
        initialize: function(attrs, args) {
@@ -296,34 +294,6 @@ define('pgadmin.node.domain', [
          return errmsg;
        },
      }),
-      canCreate: function(itemData, item, data) {
-        //If check is false then , we will allow create menu
-        if (data && data.check == false)
-          return true;
-
-        var t = pgBrowser.tree, i = item, d = itemData;
-        // To iterate over tree to check parent node
-        while (i) {
-          // If it is schema then allow user to create domain
-          if (_.indexOf(['schema'], d._type) > -1)
-            return true;
-
-          if ('coll-domain' == d._type) {
-            //Check if we are not child of catalog
-            var prev_i = t.hasParent(i) ? t.parent(i) : null,
-              prev_d = prev_i ? t.itemData(prev_i) : null;
-            if( prev_d._type == 'catalog') {
-              return false;
-            } else {
-              return true;
-            }
-          }
-          i = t.hasParent(i) ? t.parent(i) : null;
-          d = i ? t.itemData(i) : null;
-        }
-        // by default we do not want to allow create menu
-        return true;
-      },
      isDisabled: function(m){
        if (!m.isNew()) {
          var server = this.node_info.server;
--- a/web/pgadmin/browser/server_groups/servers/databases/schemas/foreign_tables/static/js/foreign_table.js
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/foreign_tables/static/js/foreign_table.js
@@ -2,9 +2,10 @@
 define('pgadmin.node.foreign_table', [
  'sources/gettext', 'sources/url_for', 'jquery', 'underscore', 'backbone',
  'sources/pgadmin', 'pgadmin.browser', 'pgadmin.backform', 'pgadmin.backgrid',
-  'pgadmin.browser.collection',
+  'pgadmin.node.schema.dir/child', 'pgadmin.browser.collection',
 ], function(
-  gettext, url_for, $, _, Backbone, pgAdmin, pgBrowser, Backform, Backgrid
+  gettext, url_for, $, _, Backbone, pgAdmin, pgBrowser, Backform, Backgrid,
+  schemaChild
 ) {

  if (!pgBrowser.Nodes['coll-foreign_table']) {
@@ -469,7 +470,7 @@ define('pgadmin.node.foreign_table', [


  if (!pgBrowser.Nodes['foreign_table']) {
-    pgBrowser.Nodes['foreign_table'] = pgBrowser.Node.extend({
+    pgBrowser.Nodes['foreign_table'] = schemaChild.SchemaChildNode.extend({
      type: 'foreign_table',
      sqlAlterHelp: 'sql-alterforeigntable.html',
      sqlCreateHelp: 'sql-createforeigntable.html',
@@ -509,8 +510,6 @@ define('pgadmin.node.foreign_table', [
        ]);

      },
-      canDrop: pgBrowser.Nodes['schema'].canChildDrop,
-      canDropCascade: pgBrowser.Nodes['schema'].canChildDrop,
      model: pgBrowser.Node.Model.extend({
        initialize: function(attrs, args) {
          var isNew = (_.size(attrs) === 0);
@@ -659,34 +658,6 @@ define('pgadmin.node.foreign_table', [
          return errmsg;
        },
      }),
-      canCreate: function(itemData, item, data) {
-        //If check is false then , we will allow create menu
-        if (data && data.check == false)
-          return true;
-
-        var t = pgBrowser.tree, i = item, d = itemData;
-        // To iterate over tree to check parent node
-        while (i) {
-          // If it is schema then allow user to create foreign table
-          if (_.indexOf(['schema'], d._type) > -1)
-            return true;
-
-          if ('coll-foreign_table' == d._type) {
-            //Check if we are not child of catalog
-            var prev_i = t.hasParent(i) ? t.parent(i) : null,
-              prev_d = prev_i ? t.itemData(prev_i) : null;
-            if( prev_d._type == 'catalog') {
-              return false;
-            } else {
-              return true;
-            }
-          }
-          i = t.hasParent(i) ? t.parent(i) : null;
-          d = i ? t.itemData(i) : null;
-        }
-        // by default we do not want to allow create menu
-        return true;
-      },
    });

  }
--- a/web/pgadmin/browser/server_groups/servers/databases/schemas/fts_configurations/static/js/fts_configuration.js
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/fts_configurations/static/js/fts_configuration.js
@@ -1,9 +1,10 @@
 define('pgadmin.node.fts_configuration', [
  'sources/gettext', 'sources/url_for', 'jquery', 'underscore', 'backbone',
  'sources/pgadmin', 'pgadmin.browser', 'pgadmin.backform', 'pgadmin.backgrid',
-  'pgadmin.browser.collection',
+  'pgadmin.node.schema.dir/child', 'pgadmin.browser.collection',
 ], function(
-  gettext, url_for, $, _, Backbone, pgAdmin, pgBrowser, Backform, Backgrid
+  gettext, url_for, $, _, Backbone, pgAdmin, pgBrowser, Backform, Backgrid,
+  schemaChild
 ) {

  // Model for tokens control
@@ -410,14 +411,11 @@ define('pgadmin.node.fts_configuration', [

  // Extend the node class for FTS Configuration
  if (!pgBrowser.Nodes['fts_configuration']) {
-    pgAdmin.Browser.Nodes['fts_configuration'] = pgAdmin.Browser.Node.extend({
-      parent_type: ['schema', 'catalog'],
+    pgAdmin.Browser.Nodes['fts_configuration'] = schemaChild.SchemaChildNode.extend({
      type: 'fts_configuration',
      sqlAlterHelp: 'sql-altertsconfig.html',
      sqlCreateHelp: 'sql-createtsconfig.html',
      dialogHelp: url_for('help.static', {'filename': 'fts_configuration_dialog.html'}),
-      canDrop: true,
-      canDropCascade: true,
      label: gettext('FTS Configuration'),
      hasSQL: true,
      hasDepends: true,
@@ -577,34 +575,6 @@ define('pgadmin.node.fts_configuration', [
          return null;
        },
      }),
-      canCreate: function(itemData, item, data) {
-        //If check is false then , we will allow create menu
-        if (data && data.check == false)
-          return true;
-
-        var t = pgBrowser.tree, i = item, d = itemData;
-        // To iterate over tree to check parent node
-        while (i) {
-          // If it is schema then allow user to create fts configuration
-          if (_.indexOf(['schema'], d._type) > -1)
-            return true;
-
-          if ('coll-fts_configuration' == d._type) {
-            //Check if we are not child of catalog
-            var prev_i = t.hasParent(i) ? t.parent(i) : null,
-              prev_d = prev_i ? t.itemData(prev_i) : null;
-            if( prev_d._type == 'catalog') {
-              return false;
-            } else {
-              return true;
-            }
-          }
-          i = t.hasParent(i) ? t.parent(i) : null;
-          d = i ? t.itemData(i) : null;
-        }
-        // by default we do not want to allow create menu
-        return true;
-      },
    });
  }

--- a/web/pgadmin/browser/server_groups/servers/databases/schemas/fts_dictionaries/static/js/fts_dictionary.js
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/fts_dictionaries/static/js/fts_dictionary.js
@@ -1,8 +1,10 @@
 define('pgadmin.node.fts_dictionary', [
  'sources/gettext', 'sources/url_for', 'jquery', 'underscore',
  'underscore.string', 'sources/pgadmin', 'pgadmin.browser', 'pgadmin.backform',
-  'pgadmin.browser.collection',
-], function(gettext, url_for, $, _, S, pgAdmin, pgBrowser, Backform) {
+  'pgadmin.node.schema.dir/child', 'pgadmin.browser.collection',
+], function(
+  gettext, url_for, $, _, S, pgAdmin, pgBrowser, Backform, schemaChild
+) {

  // Extend the browser's node model class to create a option/value pair
  var OptionLabelModel = pgAdmin.Browser.Node.Model.extend({
@@ -55,14 +57,11 @@ define('pgadmin.node.fts_dictionary', [

  // Extend the node class for FTS Dictionary
  if (!pgBrowser.Nodes['fts_dictionary']) {
-    pgAdmin.Browser.Nodes['fts_dictionary'] = pgAdmin.Browser.Node.extend({
-      parent_type: ['schema', 'catalog'],
+    pgAdmin.Browser.Nodes['fts_dictionary'] = schemaChild.SchemaChildNode.extend({
      type: 'fts_dictionary',
      sqlAlterHelp: 'sql-altertsdictionary.html',
      sqlCreateHelp: 'sql-createtsdictionary.html',
      dialogHelp: url_for('help.static', {'filename': 'fts_dictionary_dialog.html'}),
-      canDrop: true,
-      canDropCascade: true,
      label: gettext('FTS Dictionary'),
      hasSQL: true,
      hasDepends: true,
@@ -186,34 +185,6 @@ define('pgadmin.node.fts_dictionary', [
          return null;
        },
      }),
-      canCreate: function(itemData, item, data) {
-        //If check is false then , we will allow create menu
-        if (data && data.check == false)
-          return true;
-
-        var t = pgBrowser.tree, i = item, d = itemData;
-        // To iterate over tree to check parent node
-        while (i) {
-          // If it is schema then allow user to create fts dictionary
-          if (_.indexOf(['schema'], d._type) > -1)
-            return true;
-
-          if ('coll-fts_dictionary' == d._type) {
-            //Check if we are not child of catalog
-            var prev_i = t.hasParent(i) ? t.parent(i) : null,
-              prev_d = prev_i ? t.itemData(prev_i) : null;
-            if( prev_d._type == 'catalog') {
-              return false;
-            } else {
-              return true;
-            }
-          }
-          i = t.hasParent(i) ? t.parent(i) : null;
-          d = i ? t.itemData(i) : null;
-        }
-        // by default we do not want to allow create menu
-        return true;
-      },
    });
  }

--- a/web/pgadmin/browser/server_groups/servers/databases/schemas/fts_parser/static/js/fts_parser.js
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/fts_parser/static/js/fts_parser.js
@@ -1,7 +1,8 @@
 define('pgadmin.node.fts_parser', [
  'sources/gettext', 'sources/url_for', 'jquery', 'underscore',
-  'sources/pgadmin', 'pgadmin.browser', 'pgadmin.browser.collection',
-], function(gettext, url_for, $, _, pgAdmin, pgBrowser) {
+  'sources/pgadmin', 'pgadmin.browser', 'pgadmin.node.schema.dir/child',
+  'pgadmin.browser.collection',
+], function(gettext, url_for, $, _, pgAdmin, pgBrowser, schemaChild) {

  // Extend the collection class for fts parser
  if (!pgBrowser.Nodes['coll-fts_parser']) {
@@ -16,14 +17,11 @@ define('pgadmin.node.fts_parser', [

  // Extend the node class for fts parser
  if (!pgBrowser.Nodes['fts_parser']) {
-    pgAdmin.Browser.Nodes['fts_parser'] = pgAdmin.Browser.Node.extend({
-      parent_type: ['schema', 'catalog'],
+    pgAdmin.Browser.Nodes['fts_parser'] = schemaChild.SchemaChildNode.extend({
      type: 'fts_parser',
      sqlAlterHelp: 'sql-altertsparser.html',
      sqlCreateHelp: 'sql-createtsparser.html',
      dialogHelp: url_for('help.static', {'filename': 'fts_parser_dialog.html'}),
-      canDrop: true,
-      canDropCascade: true,
      label: gettext('FTS Parser'),
      hasSQL: true,
      hasDepends: true,
@@ -199,34 +197,6 @@ define('pgadmin.node.fts_parser', [
          return null;
        },
      }),
-      canCreate: function(itemData, item, data) {
-        //If check is false then , we will allow create menu
-        if (data && data.check == false)
-          return true;
-
-        var t = pgBrowser.tree, i = item, d = itemData;
-        // To iterate over tree to check parent node
-        while (i) {
-          // If it is schema then allow user to create fts parser
-          if (_.indexOf(['schema'], d._type) > -1)
-            return true;
-
-          if ('coll-fts_parser' == d._type) {
-            //Check if we are not child of catalog
-            var prev_i = t.hasParent(i) ? t.parent(i) : null,
-              prev_d = prev_i ? t.itemData(prev_i) : null;
-            if( prev_d._type == 'catalog') {
-              return false;
-            } else {
-              return true;
-            }
-          }
-          i = t.hasParent(i) ? t.parent(i) : null;
-          d = i ? t.itemData(i) : null;
-        }
-        // by default we do not want to allow create menu
-        return true;
-      },
    });
  }

--- a/web/pgadmin/browser/server_groups/servers/databases/schemas/fts_templates/static/js/fts_template.js
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/fts_templates/static/js/fts_template.js
@@ -1,7 +1,8 @@
 define('pgadmin.node.fts_template', [
  'sources/gettext', 'sources/url_for', 'jquery', 'underscore',
-  'sources/pgadmin', 'pgadmin.browser', 'pgadmin.browser.collection',
-], function(gettext, url_for, $, _, pgAdmin, pgBrowser) {
+  'sources/pgadmin', 'pgadmin.browser', 'pgadmin.node.schema.dir/child',
+  'pgadmin.browser.collection',
+], function(gettext, url_for, $, _, pgAdmin, pgBrowser, schemaChild) {

  // Extend the collection class for fts template
  if (!pgBrowser.Nodes['coll-fts_template']) {
@@ -16,14 +17,11 @@ define('pgadmin.node.fts_template', [

  // Extend the node class for fts template
  if (!pgBrowser.Nodes['fts_template']) {
-    pgAdmin.Browser.Nodes['fts_template'] = pgAdmin.Browser.Node.extend({
-      parent_type: ['schema', 'catalog'],
+    pgAdmin.Browser.Nodes['fts_template'] = schemaChild.SchemaChildNode.extend({
      type: 'fts_template',
      sqlAlterHelp: 'sql-altertstemplate.html',
      sqlCreateHelp: 'sql-createtstemplate.html',
      dialogHelp: url_for('help.static', {'filename': 'fts_template_dialog.html'}),
-      canDrop: true,
-      canDropCascade: true,
      label: gettext('FTS Template'),
      hasSQL: true,
      hasDepends: true,
@@ -139,34 +137,6 @@ define('pgadmin.node.fts_template', [
          return null;
        },
      }),
-      canCreate: function(itemData, item, data) {
-        //If check is false then , we will allow create menu
-        if (data && data.check == false)
-          return true;
-
-        var t = pgBrowser.tree, i = item, d = itemData;
-        // To iterate over tree to check parent node
-        while (i) {
-          // If it is schema then allow user to create fts fts_template
-          if (_.indexOf(['schema'], d._type) > -1)
-            return true;
-
-          if ('coll-fts_template' == d._type) {
-            //Check if we are not child of catalog
-            var prev_i = t.hasParent(i) ? t.parent(i) : null,
-              prev_d = prev_i ? t.itemData(prev_i) : null;
-            if( prev_d._type == 'catalog') {
-              return false;
-            } else {
-              return true;
-            }
-          }
-          i = t.hasParent(i) ? t.parent(i) : null;
-          d = i ? t.itemData(i) : null;
-        }
-        // by default we do not want to allow create menu
-        return true;
-      },
    });
  }

--- a/web/pgadmin/browser/server_groups/servers/databases/schemas/functions/static/js/function.js
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/functions/static/js/function.js
@@ -2,8 +2,11 @@
 define('pgadmin.node.function', [
  'sources/gettext', 'sources/url_for', 'jquery', 'underscore', 'backbone',
  'sources/pgadmin', 'pgadmin.browser', 'pgadmin.backform',
-  'pgadmin.browser.collection', 'pgadmin.browser.server.privilege',
-], function(gettext, url_for, $, _, Backbone, pgAdmin, pgBrowser, Backform) {
+  'pgadmin.node.schema.dir/child', 'pgadmin.browser.collection',
+  'pgadmin.browser.server.privilege',
+], function(
+  gettext, url_for, $, _, Backbone, pgAdmin, pgBrowser, Backform, schemaChild
+) {

  if (!pgBrowser.Nodes['coll-function']) {
    pgBrowser.Nodes['coll-function'] =
@@ -83,7 +86,8 @@ define('pgadmin.node.function', [
  });

  if (!pgBrowser.Nodes['function']) {
-    pgBrowser.Nodes['function'] = pgBrowser.Node.extend({
+
+    pgBrowser.Nodes['function'] = schemaChild.SchemaChildNode.extend({
      type: 'function',
      sqlAlterHelp: 'sql-alterfunction.html',
      sqlCreateHelp: 'sql-createfunction.html',
@@ -96,7 +100,6 @@ define('pgadmin.node.function', [
        return treeInformation.server.server_type !== 'gpdb';
      },
      hasScriptTypes: ['create', 'select'],
-      parent_type: ['schema', 'catalog'],
      Init: function() {
        /* Avoid mulitple registration of menus */
        if (this.initialized)
@@ -126,8 +129,6 @@ define('pgadmin.node.function', [
        ]);

      },
-      canDrop: pgBrowser.Nodes['schema'].canChildDrop,
-      canDropCascade: pgBrowser.Nodes['schema'].canChildDrop,
      model: pgBrowser.Node.Model.extend({
        initialize: function(attrs, args) {
          var isNew = (_.size(attrs) === 0);
@@ -438,34 +439,6 @@ define('pgadmin.node.function', [
          return true;
        },
      }),
-      canCreate: function(itemData, item, data) {
-        //If check is false then , we will allow create menu
-        if (data && data.check == false)
-          return true;
-
-        var t = pgBrowser.tree, i = item, d = itemData;
-        // To iterate over tree to check parent node
-        while (i) {
-          // If it is schema then allow user to create Function
-          if (_.indexOf(['schema'], d._type) > -1)
-            return true;
-
-          if ('coll-function' == d._type) {
-            //Check if we are not child of catalog
-            var prev_i = t.hasParent(i) ? t.parent(i) : null,
-              prev_d = prev_i ? t.itemData(prev_i) : null;
-            if( prev_d._type == 'catalog') {
-              return false;
-            } else {
-              return true;
-            }
-          }
-          i = t.hasParent(i) ? t.parent(i) : null;
-          d = i ? t.itemData(i) : null;
-        }
-        // by default we do not want to allow create menu
-        return true;
-      },
    });

  }
--- a/web/pgadmin/browser/server_groups/servers/databases/schemas/functions/static/js/trigger_function.js
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/functions/static/js/trigger_function.js
@@ -2,8 +2,11 @@
 define('pgadmin.node.trigger_function', [
  'sources/gettext', 'sources/url_for', 'jquery', 'underscore',
  'sources/pgadmin', 'pgadmin.browser', 'pgadmin.backform',
-  'pgadmin.browser.collection', 'pgadmin.browser.server.privilege',
-], function(gettext, url_for, $, _, pgAdmin, pgBrowser, Backform) {
+  'pgadmin.node.schema.dir/child', 'pgadmin.browser.collection',
+  'pgadmin.browser.server.privilege',
+], function(
+  gettext, url_for, $, _, pgAdmin, pgBrowser, Backform, schemaChild
+) {

  if (!pgBrowser.Nodes['coll-trigger_function']) {
    pgBrowser.Nodes['coll-trigger_function'] =
@@ -17,7 +20,7 @@ define('pgadmin.node.trigger_function', [
  }

  if (!pgBrowser.Nodes['trigger_function']) {
-    pgBrowser.Nodes['trigger_function'] = pgBrowser.Node.extend({
+    pgBrowser.Nodes['trigger_function'] = schemaChild.SchemaChildNode.extend({
      type: 'trigger_function',
      sqlAlterHelp: 'plpgsql-trigger.html',
      sqlCreateHelp: 'plpgsql-trigger.html',
@@ -27,7 +30,6 @@ define('pgadmin.node.trigger_function', [
      hasSQL: true,
      hasDepends: true,
      hasStatistics: true,
-      parent_type: ['schema', 'catalog'],
      Init: function() {
        /* Avoid mulitple registration of menus */
        if (this.initialized)
@@ -57,8 +59,6 @@ define('pgadmin.node.trigger_function', [
        ]);

      },
-      canDrop: pgBrowser.Nodes['schema'].canChildDrop,
-      canDropCascade: pgBrowser.Nodes['schema'].canChildDrop,
      model: pgBrowser.Node.Model.extend({
        initialize: function(attrs, args) {
          var isNew = (_.size(attrs) === 0);
@@ -357,34 +357,6 @@ define('pgadmin.node.trigger_function', [
          return !(this.node_info &&  'catalog' in this.node_info);
        },
      }),
-      canCreate: function(itemData, item, data) {
-        //If check is false then , we will allow create menu
-        if (data && data.check == false)
-          return true;
-
-        var t = pgBrowser.tree, i = item, d = itemData;
-        // To iterate over tree to check parent node
-        while (i) {
-          // If it is schema then allow user to create Function
-          if (_.indexOf(['schema'], d._type) > -1)
-            return true;
-
-          if ('coll-trigger_function' == d._type) {
-            //Check if we are not child of catalog
-            var prev_i = t.hasParent(i) ? t.parent(i) : null,
-              prev_d = prev_i ? t.itemData(prev_i) : null;
-            if( prev_d._type == 'catalog') {
-              return false;
-            } else {
-              return true;
-            }
-          }
-          i = t.hasParent(i) ? t.parent(i) : null;
-          d = i ? t.itemData(i) : null;
-        }
-        // by default we do not want to allow create menu
-        return true;
-      },
    });

  }
--- a/web/pgadmin/browser/server_groups/servers/databases/schemas/sequences/static/js/sequence.js
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/sequences/static/js/sequence.js
@@ -1,8 +1,10 @@
 define('pgadmin.node.sequence', [
  'sources/gettext', 'sources/url_for', 'jquery', 'underscore',
  'underscore.string', 'sources/pgadmin', 'pgadmin.browser', 'pgadmin.backform',
-  'pgadmin.browser.collection',
-], function(gettext, url_for, $, _, S, pgAdmin, pgBrowser, Backform) {
+  'pgadmin.node.schema.dir/child', 'pgadmin.browser.collection',
+], function(
+  gettext, url_for, $, _, S, pgAdmin, pgBrowser, Backform, schemaChild
+) {

  // Extend the browser's collection class for sequence collection
  if (!pgBrowser.Nodes['coll-sequence']) {
@@ -18,7 +20,7 @@ define('pgadmin.node.sequence', [

  // Extend the browser's node class for sequence node
  if (!pgBrowser.Nodes['sequence']) {
-    pgBrowser.Nodes['sequence'] = pgBrowser.Node.extend({
+    pgBrowser.Nodes['sequence'] = schemaChild.SchemaChildNode.extend({
      type: 'sequence',
      sqlAlterHelp: 'sql-altersequence.html',
      sqlCreateHelp: 'sql-createsequence.html',
@@ -28,7 +30,6 @@ define('pgadmin.node.sequence', [
      hasSQL: true,
      hasDepends: true,
      hasStatistics: true,
-      parent_type: ['schema', 'catalog'],
      Init: function() {
        /* Avoid mulitple registration of menus */
        if (this.initialized)
@@ -58,36 +59,6 @@ define('pgadmin.node.sequence', [
        ]);

      },
-      canDrop: pgBrowser.Nodes['schema'].canChildDrop,
-      canDropCascade: pgBrowser.Nodes['schema'].canChildDrop,
-      canCreate: function(itemData, item, data) {
-          //If check is false then , we will allow create menu
-        if (data && data.check == false)
-          return true;
-
-        var t = pgBrowser.tree, i = item, d = itemData;
-          // To iterate over tree to check parent node
-        while (i) {
-            // If it is schema then allow user to create collation
-          if (_.indexOf(['schema'], d._type) > -1)
-            return true;
-
-          if ('coll-sequence' == d._type) {
-              //Check if we are not child of catalog
-            var prev_i = t.hasParent(i) ? t.parent(i) : null,
-              prev_d = prev_i ? t.itemData(prev_i) : null;
-            if( prev_d._type == 'catalog') {
-              return false;
-            } else {
-              return true;
-            }
-          }
-          i = t.hasParent(i) ? t.parent(i) : null;
-          d = i ? t.itemData(i) : null;
-        }
-          // by default we want to allow create menu
-        return true;
-      },
      // Define the model for sequence node.
      model: pgBrowser.Node.Model.extend({
        defaults: {
--- a/web/pgadmin/browser/server_groups/servers/databases/schemas/static/js/child.js
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/static/js/child.js
@@ -0,0 +1,22 @@
+/////////////////////////////////////////////////////////////
+//
+// pgAdmin 4 - PostgreSQL Tools
+//
+// Copyright (C) 2013 - 2018, The pgAdmin Development Team
+// This software is released under the PostgreSQL Licence
+//
+/////////////////////////////////////////////////////////////
+
+import * as Node from 'pgbrowser/node';
+import {
+  isTreeItemOfChildOfSchema, childCreateMenuEnabled,
+} from './schema_child_tree_node';
+
+let SchemaChildNode = Node.extend({
+  parent_type: ['schema', 'catalog'],
+  canDrop: isTreeItemOfChildOfSchema,
+  canDropCascade: isTreeItemOfChildOfSchema,
+  canCreate: childCreateMenuEnabled,
+}, false);
+
+export {SchemaChildNode};
--- a/web/pgadmin/browser/server_groups/servers/databases/schemas/static/js/schema.js
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/static/js/schema.js
@@ -425,54 +425,10 @@ define('pgadmin.node.schema', [
          return null;
        },
      }),
-      // This function will checks whether we can allow user to
-      // drop object or not based on location within schema & catalog
-      canChildDrop: function(itemData, item) {
-        var t = pgBrowser.tree, i = item, d = itemData;
-        // To iterate over tree to check parent node
-        while (i) {
-          // If it is schema then allow user to create collation
-          if (_.indexOf(['schema'], d._type) > -1)
-            return true;
-
-            //Check if we are not child of catalog
-          var prev_i = t.hasParent(i) ? t.parent(i) : null,
-            prev_d = prev_i ? t.itemData(prev_i) : null;
-          if(prev_d && prev_d._type == 'catalog') {
-            return false;
-          }
-          i = t.hasParent(i) ? t.parent(i) : null;
-          d = i ? t.itemData(i) : null;
-        }
-        // by default we do not want to allow create menu
-        return true;
-      },
    });

    pgBrowser.tableChildTreeNodeHierarchy = function(i) {
-      var idx = 0,
-        res = {},
-        t = pgBrowser.tree;
-
-      do {
-        var d = t.itemData(i);
-        if (
-          d._type in pgBrowser.Nodes && pgBrowser.Nodes[d._type].hasId
-        ) {
-          if (d._type === 'partition' || d._type === 'table') {
-            if (!('table' in res)) {
-              res['table'] = _.extend({}, d, {'priority': idx});
-              idx -= 1;
-            }
-          } else {
-            res[d._type] = _.extend({}, d, {'priority': idx});
-            idx -= 1;
-          }
-        }
-        i = t.hasParent(i) ? t.parent(i) : null;
-      } while (i);
-
-      return res;
+      return this.getTreeNodeHierarchy(i);
    };
  }

--- a/web/pgadmin/browser/server_groups/servers/databases/schemas/static/js/schema_child_tree_node.js
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/static/js/schema_child_tree_node.js
@@ -0,0 +1,41 @@
+/////////////////////////////////////////////////////////////
+//
+// pgAdmin 4 - PostgreSQL Tools
+//
+// Copyright (C) 2013 - 2018, The pgAdmin Development Team
+// This software is released under the PostgreSQL Licence
+//
+/////////////////////////////////////////////////////////////
+
+import * as pgBrowser from 'pgbrowser/browser';
+
+export function childCreateMenuEnabled(itemData, item, data) {
+  // If check is false then , we will allow create menu
+  if (data && data.check === false) {
+    return true;
+  }
+
+  let node = pgBrowser.treeMenu.findNodeByDomElement(item);
+
+  if (node)
+    return node.anyFamilyMember(
+      (node) => (node.getData()._type === 'schema')
+    );
+
+  return false;
+}
+
+export function isTreeItemOfChildOfSchema(itemData, item) {
+  let node = pgBrowser.treeMenu.findNodeByDomElement(item);
+
+  if (node)
+    return isTreeNodeOfSchemaChild(node);
+
+  return false;
+}
+
+export function isTreeNodeOfSchemaChild(node) {
+  return node.anyParent(
+    (parentNode) => (parentNode.getData()._type === 'schema')
+  );
+}
--- a/web/pgadmin/browser/server_groups/servers/databases/schemas/tables/column/static/js/column.js
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/tables/column/static/js/column.js
@@ -88,7 +88,6 @@ define('pgadmin.node.column', [

  if (!pgBrowser.Nodes['column']) {
    pgBrowser.Nodes['column'] = pgBrowser.Node.extend({
-      getTreeNodeHierarchy: pgBrowser.tableChildTreeNodeHierarchy,
      parent_type: ['table', 'view', 'mview'],
      collection_type: ['coll-table', 'coll-view', 'coll-mview'],
      type: 'column',
@@ -97,27 +96,24 @@ define('pgadmin.node.column', [
      sqlAlterHelp: 'sql-altertable.html',
      sqlCreateHelp: 'sql-altertable.html',
      dialogHelp: url_for('help.static', {'filename': 'column_dialog.html'}),
-      canDrop: function(itemData, item, data){
-        if (pgBrowser.Nodes['schema'].canChildDrop.apply(this, [itemData, item, data])) {
-          var t = pgBrowser.tree, i = item, d = itemData, parents = [];
-          // To iterate over tree to check parent node
-          while (i) {
-            parents.push(d._type);
-            i = t.hasParent(i) ? t.parent(i) : null;
-            d = i ? t.itemData(i) : null;
-          }
+      canDrop: function(itemData, item){
+        let node = pgBrowser.treeMenu.findNodeByDomElement(item);

-          // Check if menu is allowed ?
-          if(_.indexOf(parents, 'catalog') > -1 ||
-             _.indexOf(parents, 'view') > -1 ||
-             _.indexOf(parents, 'mview') > -1) {
-            return false;
-          } else if(_.indexOf(parents, 'table') > -1) {
-            return true;
-          }
-        } else {
+        if (!node)
          return false;
-        }
+
+        // Only a column of a table can be droped, and only when it is not of
+        // catalog.
+        return node.anyParent(
+          (parentNode) => (
+            parentNode.getData()._type === 'table' &&
+              !parentNode.anyParent(
+                (grandParentNode) => (
+                  grandParentNode.getData()._type === 'catalog'
+                )
+              )
+          )
+        );
      },
      hasDepends: true,
      hasStatistics: true,
--- a/web/pgadmin/browser/server_groups/servers/databases/schemas/tables/constraints/check_constraint/static/js/check_constraint.js
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/tables/constraints/check_constraint/static/js/check_constraint.js
@@ -8,7 +8,6 @@ define('pgadmin.node.check_constraint', [
  // Check Constraint Node
  if (!pgBrowser.Nodes['check_constraint']) {
    pgAdmin.Browser.Nodes['check_constraint'] = pgBrowser.Node.extend({
-      getTreeNodeHierarchy: pgBrowser.tableChildTreeNodeHierarchy,
      type: 'check_constraint',
      label: gettext('Check'),
      collection_type: 'coll-constraints',
--- a/web/pgadmin/browser/server_groups/servers/databases/schemas/tables/constraints/exclusion_constraint/static/js/exclusion_constraint.js
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/tables/constraints/exclusion_constraint/static/js/exclusion_constraint.js
@@ -605,7 +605,6 @@ define('pgadmin.node.exclusion_constraint', [
  // Extend the browser's node class for exclusion constraint node
  if (!pgBrowser.Nodes['exclusion_constraint']) {
    pgAdmin.Browser.Nodes['exclusion_constraint'] = pgBrowser.Node.extend({
-      getTreeNodeHierarchy: pgBrowser.tableChildTreeNodeHierarchy,
      type: 'exclusion_constraint',
      label: gettext('Exclusion constraint'),
      collection_type: 'coll-constraints',
--- a/web/pgadmin/browser/server_groups/servers/databases/schemas/tables/constraints/foreign_key/static/js/foreign_key.js
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/tables/constraints/foreign_key/static/js/foreign_key.js
@@ -603,7 +603,6 @@ define('pgadmin.node.foreign_key', [
  // Extend the browser's node class for foreign key node
  if (!pgBrowser.Nodes['foreign_key']) {
    pgAdmin.Browser.Nodes['foreign_key'] = pgBrowser.Node.extend({
-      getTreeNodeHierarchy: pgBrowser.tableChildTreeNodeHierarchy,
      type: 'foreign_key',
      label: gettext('Foreign key'),
      collection_type: 'coll-constraints',
--- a/web/pgadmin/browser/server_groups/servers/databases/schemas/tables/constraints/index_constraint/static/js/primary_key.js
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/tables/constraints/index_constraint/static/js/primary_key.js
@@ -20,7 +20,6 @@ define('pgadmin.node.primary_key', [
      parent_type: ['table','partition'],
      canDrop: true,
      canDropCascade: true,
-      getTreeNodeHierarchy: pgBrowser.tableChildTreeNodeHierarchy,
      Init: function() {
        /* Avoid multiple registration of menus */
        if (this.initialized)
--- a/web/pgadmin/browser/server_groups/servers/databases/schemas/tables/constraints/index_constraint/static/js/unique_constraint.js
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/tables/constraints/index_constraint/static/js/unique_constraint.js
@@ -20,7 +20,6 @@ define('pgadmin.node.unique_constraint', [
      parent_type: ['table','partition'],
      canDrop: true,
      canDropCascade: true,
-      getTreeNodeHierarchy: pgBrowser.tableChildTreeNodeHierarchy,
      Init: function() {
        /* Avoid multiple registration of menus */
        if (this.initialized)
--- a/web/pgadmin/browser/server_groups/servers/databases/schemas/tables/constraints/static/js/constraints.js
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/tables/constraints/static/js/constraints.js
@@ -12,14 +12,12 @@ define('pgadmin.node.constraints', [
        node: 'constraints',
        label: gettext('Constraints'),
        type: 'coll-constraints',
-        getTreeNodeHierarchy: pgBrowser.tableChildTreeNodeHierarchy,
        columns: ['name', 'comment'],
      });
  }

  if (!pgBrowser.Nodes['constraints']) {
    pgAdmin.Browser.Nodes['constraints'] = pgBrowser.Node.extend({
-      getTreeNodeHierarchy: pgBrowser.tableChildTreeNodeHierarchy,
      type: 'constraints',
      label: gettext('Constraints'),
      collection_type: 'coll-constraints',
--- a/web/pgadmin/browser/server_groups/servers/databases/schemas/tables/indexes/static/js/index.js
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/tables/indexes/static/js/index.js
@@ -1,10 +1,12 @@
 define('pgadmin.node.index', [
  'sources/gettext', 'sources/url_for', 'jquery', 'underscore',
  'backbone', 'sources/pgadmin', 'pgadmin.browser', 'pgadmin.alertifyjs',
-  'pgadmin.backform', 'pgadmin.backgrid', 'pgadmin.browser.collection',
+  'pgadmin.backform', 'pgadmin.backgrid',
+  'pgadmin.node.schema.dir/schema_child_tree_node',
+  'pgadmin.browser.collection',
 ], function(
  gettext, url_for, $, _, Backbone, pgAdmin, pgBrowser, Alertify, Backform,
-  Backgrid
+  Backgrid, SchemaChildTreeNode
 ) {

  if (!pgBrowser.Nodes['coll-index']) {
@@ -13,7 +15,6 @@ define('pgadmin.node.index', [
        node: 'index',
        label: gettext('Indexes'),
        type: 'coll-index',
-        getTreeNodeHierarchy: pgBrowser.tableChildTreeNodeHierarchy,
        sqlAlterHelp: 'sql-alterindex.html',
        sqlCreateHelp: 'sql-createindex.html',
        dialogHelp: url_for('help.static', {'filename': 'index_dialog.html'}),
@@ -215,7 +216,6 @@ define('pgadmin.node.index', [

  if (!pgBrowser.Nodes['index']) {
    pgAdmin.Browser.Nodes['index'] = pgBrowser.Node.extend({
-      getTreeNodeHierarchy: pgBrowser.tableChildTreeNodeHierarchy,
      parent_type: ['table', 'view', 'mview', 'partition'],
      collection_type: ['coll-table', 'coll-view'],
      sqlAlterHelp: 'sql-alterindex.html',
@@ -266,8 +266,8 @@ define('pgadmin.node.index', [
        },
        ]);
      },
-      canDrop: pgBrowser.Nodes['schema'].canChildDrop,
-      canDropCascade: pgBrowser.Nodes['schema'].canChildDrop,
+      canDrop: SchemaChildTreeNode.isTreeItemOfChildOfSchema,
+      canDropCascade: SchemaChildTreeNode.isTreeItemOfChildOfSchema,
      model: pgAdmin.Browser.Node.Model.extend({
        idAttribute: 'oid',

--- a/web/pgadmin/browser/server_groups/servers/databases/schemas/tables/partitions/static/js/partition.js
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/tables/partitions/static/js/partition.js
@@ -2,10 +2,12 @@ define([
  'sources/gettext', 'sources/url_for', 'jquery', 'underscore',
  'underscore.string', 'sources/pgadmin', 'pgadmin.browser',
  'pgadmin.alertifyjs', 'pgadmin.backform', 'pgadmin.backgrid',
+  'pgadmin.node.schema.dir/schema_child_tree_node',
  'pgadmin.browser.collection', 'pgadmin.browser.table.partition.utils',
 ],
 function(
-  gettext, url_for, $, _, S, pgAdmin, pgBrowser, Alertify, Backform, Backgrid
+  gettext, url_for, $, _, S, pgAdmin, pgBrowser, Alertify, Backform, Backgrid,
+  SchemaChildTreeNode
 ) {

  if (!pgBrowser.Nodes['coll-partition']) {
@@ -13,7 +15,6 @@ function(
      pgAdmin.Browser.Collection.extend({
        node: 'partition',
        label: gettext('Partitions'),
-        getTreeNodeHierarchy: pgBrowser.tableChildTreeNodeHierarchy,
        type: 'coll-partition',
        columns: [
          'name', 'schema', 'partition_value', 'is_partitioned', 'description',
@@ -80,36 +81,6 @@ function(
        },
        ]);
      },
-      getTreeNodeHierarchy: function(i) {
-        var idx = 0,
-          res = {},
-          t = pgBrowser.tree;
-
-        do {
-          var d = t.itemData(i);
-          if (
-            d._type in pgBrowser.Nodes && pgBrowser.Nodes[d._type].hasId
-          ) {
-            if (d._type == 'partition' && 'partition' in res) {
-              if (!('table' in res)) {
-                res['table'] = _.extend({}, d, {'priority': idx});
-                idx -= 1;
-              }
-            } else if (d._type == 'table') {
-              if (!('table' in res)) {
-                res['table'] = _.extend({}, d, {'priority': idx});
-                idx -= 1;
-              }
-            } else {
-              res[d._type] = _.extend({}, d, {'priority': idx});
-              idx -= 1;
-            }
-          }
-          i = t.hasParent(i) ? t.parent(i) : null;
-        } while (i);
-
-        return res;
-      },
      generate_url: function(item, type, d, with_id, info) {
        if (_.indexOf([
          'stats', 'statistics', 'dependency', 'dependent', 'reset',
@@ -133,8 +104,8 @@ function(
            encodeURIComponent(info['partition']._id)
            ).value();
      },
-      canDrop: pgBrowser.Nodes['schema'].canChildDrop,
-      canDropCascade: pgBrowser.Nodes['schema'].canChildDrop,
+      canDrop: SchemaChildTreeNode.isTreeItemOfChildOfSchema,
+      canDropCascade: SchemaChildTreeNode.isTreeItemOfChildOfSchema,
      callbacks: {
        /* Enable trigger(s) on table */
        enable_triggers_on_table: function(args) {
@@ -1189,34 +1160,7 @@ function(
          return data;
        },
      }),
-      canCreate: function(itemData, item, data) {
-          //If check is false then , we will allow create menu
-        if (data && data.check == false)
-          return true;
-
-        var t = pgBrowser.tree, i = item, d = itemData;
-          // To iterate over tree to check parent node
-        while (i) {
-            // If it is schema then allow user to create table
-          if (_.indexOf(['schema'], d._type) > -1)
-            return true;
-
-          if ('coll-table' == d._type) {
-              //Check if we are not child of catalog
-            var prev_i = t.hasParent(i) ? t.parent(i) : null;
-            var prev_d = prev_i ? t.itemData(prev_i) : null;
-            if( prev_d._type == 'catalog') {
-              return false;
-            } else {
-              return true;
-            }
-          }
-          i = t.hasParent(i) ? t.parent(i) : null;
-          d = i ? t.itemData(i) : null;
-        }
-          // by default we do not want to allow create menu
-        return true;
-      },
+      canCreate: SchemaChildTreeNode.isTreeItemOfChildOfSchema,
      // Check to whether table has disable trigger(s)
      canCreate_with_trigger_enable: function(itemData, item, data) {
        if(this.canCreate.apply(this, [itemData, item, data])) {
--- a/web/pgadmin/browser/server_groups/servers/databases/schemas/tables/rules/static/js/rule.js
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/tables/rules/static/js/rule.js
@@ -16,7 +16,6 @@ define('pgadmin.node.rule', [
        node: 'rule',
        label: gettext('Rules'),
        type: 'coll-rule',
-        getTreeNodeHierarchy: pgBrowser.tableChildTreeNodeHierarchy,
        columns: ['name', 'owner', 'comment'],
      });
  }
@@ -35,7 +34,6 @@ define('pgadmin.node.rule', [
   */
  if (!pgBrowser.Nodes['rule']) {
    pgAdmin.Browser.Nodes['rule'] = pgBrowser.Node.extend({
-      getTreeNodeHierarchy: pgBrowser.tableChildTreeNodeHierarchy,
      parent_type: ['table','view', 'partition'],
      type: 'rule',
      sqlAlterHelp: 'sql-alterrule.html',
--- a/web/pgadmin/browser/server_groups/servers/databases/schemas/tables/static/js/enable_disable_triggers.js
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/tables/static/js/enable_disable_triggers.js
@@ -0,0 +1,52 @@
+/////////////////////////////////////////////////////////////
+//
+// pgAdmin 4 - PostgreSQL Tools
+//
+// Copyright (C) 2013 - 2018, The pgAdmin Development Team
+// This software is released under the PostgreSQL Licence
+//
+//////////////////////////////////////////////////////////////
+
+import axios from 'axios';
+
+export function disableTriggers(tree, alertify, generateUrl, args) {
+  return setTriggers(tree, alertify, generateUrl, args, {enable: 'false' });
+}
+export function enableTriggers(tree, alertify, generateUrl, args) {
+  return setTriggers(tree, alertify, generateUrl, args, {enable: 'true' });
+}
+
+function setTriggers(tree, alertify, generateUrl, args, params) {
+  const treeNode = retrieveTreeNode(args, tree);
+
+  if (!treeNode || treeNode.getData() === null || treeNode.getData() === undefined)
+    return false;
+
+  axios.put(
+    generateUrl(treeNode.getHtmlIdentifier(), 'set_trigger', treeNode.getData(), true),
+    params
+  )
+    .then((res) => {
+      if (res.data.success === 1) {
+        alertify.success(res.data.info);
+        treeNode.reload(tree);
+      }
+    })
+    .catch((xhr) => {
+      try {
+        const err = xhr.response.data;
+        if (err.success === 0) {
+          alertify.error(err.errormsg);
+        }
+      } catch (e) {
+        console.warn(e.stack || e);
+      }
+      treeNode.unload(tree);
+    });
+}
+
+function retrieveTreeNode(args, tree) {
+  const input = args || {};
+  const domElementIdentifier = input.item || tree.selected();
+  return tree.findNodeByDomElement(domElementIdentifier);
+}
--- a/web/pgadmin/browser/server_groups/servers/databases/schemas/tables/static/js/table.js
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/tables/static/js/table.js
@@ -1,13 +1,16 @@
 define('pgadmin.node.table', [
+  'pgadmin.tables.js/enable_disable_triggers',
  'sources/gettext', 'sources/url_for', 'jquery', 'underscore',
  'underscore.string', 'sources/pgadmin', 'pgadmin.browser',
  'pgadmin.alertifyjs', 'pgadmin.backform', 'pgadmin.backgrid',
  'pgadmin.tables.js/show_advanced_tab',
-  'pgadmin.browser.collection', 'pgadmin.node.column',
-  'pgadmin.node.constraints', 'pgadmin.browser.table.partition.utils',
+  'pgadmin.node.schema.dir/child', 'pgadmin.browser.collection',
+  'pgadmin.node.column', 'pgadmin.node.constraints',
+  'pgadmin.browser.table.partition.utils',
 ], function(
+  tableFunctions,
  gettext, url_for, $, _, S, pgAdmin, pgBrowser, Alertify, Backform, Backgrid,
-  ShowAdvancedTab
+  ShowAdvancedTab, SchemaChild
 ) {

  if (!pgBrowser.Nodes['coll-table']) {
@@ -25,8 +28,7 @@ define('pgadmin.node.table', [
  }

  if (!pgBrowser.Nodes['table']) {
-    pgBrowser.Nodes['table'] = pgBrowser.Node.extend({
-      getTreeNodeHierarchy: pgBrowser.tableChildTreeNodeHierarchy,
+    pgBrowser.Nodes['table'] = SchemaChild.SchemaChildNode.extend({
      type: 'table',
      label: gettext('Table'),
      collection_type: 'coll-table',
@@ -39,7 +41,6 @@ define('pgadmin.node.table', [
      sqlAlterHelp: 'sql-altertable.html',
      sqlCreateHelp: 'sql-createtable.html',
      dialogHelp: url_for('help.static', {'filename': 'table_dialog.html'}),
-      parent_type: ['schema', 'catalog'],
      hasScriptTypes: ['create', 'select', 'insert', 'update', 'delete'],
      height: '95%',
      width: '85%',
@@ -113,51 +114,24 @@ define('pgadmin.node.table', [
          this.handle_cache, this
        );
      },
-      canDrop: pgBrowser.Nodes['schema'].canChildDrop,
-      canDropCascade: pgBrowser.Nodes['schema'].canChildDrop,
      callbacks: {
        /* Enable trigger(s) on table */
        enable_triggers_on_table: function(args) {
-          var params = {'enable': true };
-          this.callbacks.set_triggers.apply(this, [args, params]);
+          tableFunctions.enableTriggers(
+            pgBrowser.treeMenu,
+            Alertify,
+            this.generate_url.bind(this),
+            args
+          );
        },
        /* Disable trigger(s) on table */
        disable_triggers_on_table: function(args) {
-          var params = {'enable': false };
-          this.callbacks.set_triggers.apply(this, [args, params]);
-        },
-        set_triggers: function(args, params) {
-          // This function will send request to enable or
-          // disable triggers on table level
-          var input = args || {},
-            obj = this,
-            t = pgBrowser.tree,
-            i = input.item || t.selected(),
-            d = i && i.length == 1 ? t.itemData(i) : undefined;
-          if (!d)
-            return false;
-
-          $.ajax({
-            url: obj.generate_url(i, 'set_trigger' , d, true),
-            type:'PUT',
-            data: params,
-            dataType: 'json',
-            success: function(res) {
-              if (res.success == 1) {
-                Alertify.success(res.info);
-                t.unload(i);
-                t.setInode(i);
-                t.deselect(i);
-                setTimeout(function() {
-                  t.select(i);
-                }, 10);
-              }
-            },
-            error: function(xhr, status, error) {
-              Alertify.pgRespErrorNotify(xhr, error);
-              t.unload(i);
-            },
-          });
+          tableFunctions.disableTriggers(
+            pgBrowser.treeMenu,
+            Alertify,
+            this.generate_url.bind(this),
+            args
+          );
        },
        /* Truncate table */
        truncate_table: function(args) {
@@ -1299,55 +1273,15 @@ define('pgadmin.node.table', [
          return data;
        },
      }),
-      canCreate: function(itemData, item, data) {
-        //If check is false then , we will allow create menu
-        if (data && data.check == false)
-          return true;
-
-        var t = pgBrowser.tree, i = item, d = itemData;
-        // To iterate over tree to check parent node
-        while (i) {
-          // If it is schema then allow user to create table
-          if (_.indexOf(['schema'], d._type) > -1)
-            return true;
-
-          if ('coll-table' == d._type) {
-            //Check if we are not child of catalog
-            var prev_i = t.hasParent(i) ? t.parent(i) : null,
-              prev_d = prev_i ? t.itemData(prev_i) : null;
-            if( prev_d._type == 'catalog') {
-              return false;
-            } else {
-              return true;
-            }
-          }
-          i = t.hasParent(i) ? t.parent(i) : null;
-          d = i ? t.itemData(i) : null;
-        }
-        // by default we do not want to allow create menu
-        return true;
-      },
      // Check to whether table has disable trigger(s)
      canCreate_with_trigger_enable: function(itemData, item, data) {
-        if(this.canCreate.apply(this, [itemData, item, data])) {
-          // We are here means we can create menu, now let's check condition
-          if(itemData.tigger_count > 0) {
-            return true;
-          } else {
-            return false;
-          }
-        }
+        return itemData.tigger_count > 0 &&
+          this.canCreate.apply(this, [itemData, item, data]);
      },
      // Check to whether table has enable trigger(s)
      canCreate_with_trigger_disable: function(itemData, item, data) {
-        if(this.canCreate.apply(this, [itemData, item, data])) {
-          // We are here means we can create menu, now let's check condition
-          if(itemData.tigger_count > 0 && itemData.has_enable_triggers > 0) {
-            return true;
-          } else {
-            return false;
-          }
-        }
+        return itemData.tigger_count > 0 && itemData.has_enable_triggers > 0 &&
+          this.canCreate.apply(this, [itemData, item, data]);
      },
      onTableUpdated: function(_node, _oldNodeData, _newNodeData) {
        var key, childIDs;
--- a/web/pgadmin/browser/server_groups/servers/databases/schemas/tables/triggers/static/js/trigger.js
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/tables/triggers/static/js/trigger.js
@@ -1,8 +1,13 @@
 define('pgadmin.node.trigger', [
  'sources/gettext', 'sources/url_for', 'jquery', 'underscore',
-  'underscore.string', 'sources/pgadmin', 'pgadmin.browser', 'backform', 'pgadmin.alertifyjs',
+  'underscore.string', 'sources/pgadmin', 'pgadmin.browser',
+  'pgadmin.backform', 'pgadmin.alertifyjs',
+  'pgadmin.node.schema.dir/schema_child_tree_node',
  'pgadmin.browser.collection',
-], function(gettext, url_for, $, _, S, pgAdmin, pgBrowser, Backform, alertify) {
+], function(
+  gettext, url_for, $, _, S, pgAdmin, pgBrowser, Backform, alertify,
+  SchemaChildTreeNode
+) {

  Backform.CustomSwitchControl = Backform.SwitchControl.extend({
    template: _.template([
@@ -29,14 +34,12 @@ define('pgadmin.node.trigger', [
        node: 'trigger',
        label: gettext('Triggers'),
        type: 'coll-trigger',
-        getTreeNodeHierarchy: pgBrowser.tableChildTreeNodeHierarchy,
        columns: ['name', 'description'],
      });
  }

  if (!pgBrowser.Nodes['trigger']) {
    pgAdmin.Browser.Nodes['trigger'] = pgBrowser.Node.extend({
-      getTreeNodeHierarchy: pgBrowser.tableChildTreeNodeHierarchy,
      parent_type: ['table', 'view', 'partition'],
      collection_type: ['coll-table', 'coll-view'],
      type: 'trigger',
@@ -175,8 +178,8 @@ define('pgadmin.node.trigger', [
          });
        },
      },
-      canDrop: pgBrowser.Nodes['schema'].canChildDrop,
-      canDropCascade: pgBrowser.Nodes['schema'].canChildDrop,
+      canDrop: SchemaChildTreeNode.isTreeItemOfChildOfSchema,
+      canDropCascade: SchemaChildTreeNode.isTreeItemOfChildOfSchema,
      model: pgAdmin.Browser.Node.Model.extend({
        defaults: {
          name: undefined,
@@ -618,50 +621,16 @@ define('pgadmin.node.trigger', [
          return flag;
        },
      }),
-      // Below function will enable right click menu for creating column
-      canCreate: function(itemData, item, data) {
-        // If check is false then , we will allow create menu
-        if (data && data.check == false)
-          return true;
-
-        var t = pgBrowser.tree, i = item, d = itemData, parents = [];
-        // To iterate over tree to check parent node
-        while (i) {
-          // If it is schema then allow user to c reate table
-          if (_.indexOf(['schema'], d._type) > -1)
-            return true;
-          parents.push(d._type);
-          i = t.hasParent(i) ? t.parent(i) : null;
-          d = i ? t.itemData(i) : null;
-        }
-        // If node is under catalog then do not allow 'create' menu
-        if (_.indexOf(parents, 'catalog') > -1) {
-          return false;
-        } else {
-          return true;
-        }
-      },
+      canCreate: SchemaChildTreeNode.isTreeItemOfChildOfSchema,
      // Check to whether trigger is disable ?
      canCreate_with_trigger_enable: function(itemData, item, data) {
-        if(this.canCreate.apply(this, [itemData, item, data])) {
-          // We are here means we can create menu, now let's check condition
-          if(itemData.icon === 'icon-trigger-bad') {
-            return true;
-          } else {
-            return false;
-          }
-        }
+        return itemData.icon === 'icon-trigger-bad' &&
+          this.canCreate.apply(this, [itemData, item, data]);
      },
      // Check to whether trigger is enable ?
      canCreate_with_trigger_disable: function(itemData, item, data) {
-        if(this.canCreate.apply(this, [itemData, item, data])) {
-          // We are here means we can create menu, now let's check condition
-          if(itemData.icon === 'icon-trigger') {
-            return true;
-          } else {
-            return false;
-          }
-        }
+        return itemData.icon === 'icon-trigger' &&
+          this.canCreate.apply(this, [itemData, item, data]);
      },
    });
  }
--- a/web/pgadmin/browser/server_groups/servers/databases/schemas/types/static/js/type.js
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/types/static/js/type.js
@@ -1,8 +1,12 @@
 define('pgadmin.node.type', [
  'sources/gettext', 'sources/url_for', 'jquery', 'underscore',
  'sources/pgadmin', 'pgadmin.browser', 'pgadmin.backform',
-  'pgadmin.backgrid', 'pgadmin.browser.collection',
-], function(gettext, url_for, $, _, pgAdmin, pgBrowser, Backform, Backgrid) {
+  'pgadmin.backgrid', 'pgadmin.node.schema.dir/child',
+  'pgadmin.browser.collection',
+], function(
+  gettext, url_for, $, _, pgAdmin, pgBrowser, Backform, Backgrid,
+  schemaChild
+) {

  if (!pgBrowser.Nodes['coll-type']) {
    pgBrowser.Nodes['coll-type'] =
@@ -245,7 +249,7 @@ define('pgadmin.node.type', [
  });

  if (!pgBrowser.Nodes['type']) {
-    pgBrowser.Nodes['type'] = pgBrowser.Node.extend({
+    pgBrowser.Nodes['type'] = schemaChild.SchemaChildNode.extend({
      type: 'type',
      sqlAlterHelp: 'sql-altertype.html',
      sqlCreateHelp: 'sql-createtype.html',
@@ -254,7 +258,6 @@ define('pgadmin.node.type', [
      collection_type: 'coll-type',
      hasSQL: true,
      hasDepends: true,
-      parent_type: ['schema', 'catalog'],
      Init: function() {
        /* Avoid multiple registration of menus */
        if (this.initialized)
@@ -284,8 +287,6 @@ define('pgadmin.node.type', [
        ]);

      },
-      canDrop: pgBrowser.Nodes['schema'].canChildDrop,
-      canDropCascade: pgBrowser.Nodes['schema'].canChildDrop,
      ext_funcs: undefined,
      model: pgBrowser.Node.Model.extend({
        defaults: {
@@ -911,34 +912,6 @@ define('pgadmin.node.type', [
          return result;
        },
      }),
-      canCreate: function(itemData, item, data) {
-        //If check is false then , we will allow create menu
-        if (data && data.check == false)
-          return true;
-
-        var t = pgBrowser.tree, i = item, d = itemData;
-        // To iterate over tree to check parent node
-        while (i) {
-          // If it is schema then allow user to create table
-          if (_.indexOf(['schema'], d._type) > -1)
-            return true;
-
-          if ('coll-type' == d._type) {
-            //Check if we are not child of catalog
-            var prev_i = t.hasParent(i) ? t.parent(i) : null,
-              prev_d = prev_i ? t.itemData(prev_i) : null;
-            if( prev_d._type == 'catalog') {
-              return false;
-            } else {
-              return true;
-            }
-          }
-          i = t.hasParent(i) ? t.parent(i) : null;
-          d = i ? t.itemData(i) : null;
-        }
-        // by default we do not want to allow create menu
-        return true;
-      },
    });
  }
  return pgBrowser.Nodes['type'];
--- a/web/pgadmin/browser/server_groups/servers/databases/schemas/views/static/js/mview.js
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/views/static/js/mview.js
@@ -1,8 +1,12 @@
 define('pgadmin.node.mview', [
  'sources/gettext', 'sources/url_for', 'jquery', 'underscore',
  'sources/pgadmin', 'pgadmin.alertifyjs', 'pgadmin.browser',
-  'pgadmin.backform', 'pgadmin.browser.server.privilege',
-], function(gettext, url_for, $, _, pgAdmin, Alertify, pgBrowser, Backform) {
+  'pgadmin.backform', 'pgadmin.node.schema.dir/child',
+  'pgadmin.browser.server.privilege',
+], function(
+  gettext, url_for, $, _, pgAdmin, Alertify, pgBrowser, Backform,
+  schemaChild
+) {

  /**
    Create and add a view collection into nodes
@@ -33,19 +37,16 @@ define('pgadmin.node.mview', [
    view option in the context menu
   */
  if (!pgBrowser.Nodes['mview']) {
-    pgBrowser.Nodes['mview'] = pgBrowser.Node.extend({
-      parent_type: ['schema', 'catalog'],
+    pgBrowser.Nodes['mview'] = schemaChild.SchemaChildNode.extend({
      type: 'mview',
      sqlAlterHelp: 'sql-altermaterializedview.html',
      sqlCreateHelp: 'sql-creatematerializedview.html',
      dialogHelp: url_for('help.static', {'filename': 'materialized_view_dialog.html'}),
      label: gettext('Materialized View'),
-      hasSQL:  true,
+      hasSQL: true,
      hasDepends: true,
      hasScriptTypes: ['create', 'select'],
      collection_type: 'coll-mview',
-      canDrop: pgBrowser.Nodes['schema'].canChildDrop,
-      canDropCascade: pgBrowser.Nodes['schema'].canChildDrop,
      Init: function() {

        // Avoid mulitple registration of menus
@@ -236,43 +237,6 @@ define('pgadmin.node.mview', [

      }),

-      /**
-        Show or hide create view menu option on parent node
-        and hide for system view in catalogs.
-       */
-      canCreate: function(itemData, item, data) {
-
-        // If check is false then, we will allow create menu
-        if (data && data.check === false)
-          return true;
-
-        var t = pgBrowser.tree, i = item, d = itemData;
-
-        // To iterate over tree to check parent node
-        while (i) {
-
-          // If it is schema then allow user to create view
-          if (_.indexOf(['schema'], d._type) > -1)
-            return true;
-
-          if ('coll-mview' == d._type) {
-
-            // Check if we are not child of view
-            var prev_i = t.hasParent(i) ? t.parent(i) : null,
-              prev_d = prev_i ? t.itemData(prev_i) : null;
-            if( prev_d._type == 'catalog') {
-              return false;
-            } else {
-              return true;
-            }
-          }
-          i = t.hasParent(i) ? t.parent(i) : null;
-          d = i ? t.itemData(i) : null;
-        }
-
-        // by default we do not want to allow create menu
-        return true;
-      },
      refresh_mview: function(args) {
        var input = args || {},
          obj = this,
--- a/web/pgadmin/browser/server_groups/servers/databases/schemas/views/static/js/view.js
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/views/static/js/view.js
@@ -1,9 +1,12 @@
 define('pgadmin.node.view', [
-  'sources/gettext',
-  'sources/url_for', 'jquery', 'underscore', 'sources/pgadmin',
-  'pgadmin.browser', 'pgadmin.backform', 'pgadmin.browser.server.privilege',
+  'sources/gettext', 'sources/url_for', 'jquery', 'underscore',
+  'sources/pgadmin', 'pgadmin.browser', 'pgadmin.backform',
+  'pgadmin.node.schema.dir/child', 'pgadmin.browser.server.privilege',
  'pgadmin.node.rule',
-], function(gettext, url_for, $, _, pgAdmin, pgBrowser, Backform) {
+], function(
+  gettext, url_for, $, _, pgAdmin, pgBrowser, Backform, schemaChild
+) {
+

  /**
    Create and add a view collection into nodes
@@ -28,14 +31,9 @@ define('pgadmin.node.view', [
    under which this node to display
    @param {variable} type - Type of Node
    @param {variable} hasSQL - To show SQL tab
-    @param {variable} canDrop - Adds drop view option
-    in the context menu
-    @param {variable} canDropCascade - Adds drop Cascade
-    view option in the context menu
   */
  if (!pgBrowser.Nodes['view']) {
-    pgBrowser.Nodes['view'] = pgBrowser.Node.extend({
-      parent_type: ['schema', 'catalog'],
+    pgBrowser.Nodes['view'] = schemaChild.SchemaChildNode.extend({
      type: 'view',
      sqlAlterHelp: 'sql-alterview.html',
      sqlCreateHelp: 'sql-createview.html',
@@ -45,8 +43,6 @@ define('pgadmin.node.view', [
      hasDepends: true,
      hasScriptTypes: ['create', 'select', 'insert'],
      collection_type: 'coll-view',
-      canDrop: pgBrowser.Nodes['schema'].canChildDrop,
-      canDropCascade: pgBrowser.Nodes['schema'].canChildDrop,
      Init: function() {

        // Avoid mulitple registration of menus
@@ -197,45 +193,6 @@ define('pgadmin.node.view', [
          return false;
        },
      }),
-
-      /**
-        Show or hide create view menu option on parent node
-        and hide for system view in catalogs.
-        */
-      canCreate: function(itemData, item, data) {
-
-        // If check is false then, we will allow create menu
-        if (data && data.check == false)
-          return true;
-
-        var t = pgBrowser.tree, i = item, d = itemData;
-
-        // To iterate over tree to check parent node
-        while (i) {
-
-          // If it is schema then allow user to create view
-          if (_.indexOf(['schema'], d._type) > -1)
-            return true;
-
-          if ('coll-view' == d._type) {
-
-            // Check if we are not child of view
-            var prev_i = t.hasParent(i) ? t.parent(i) : null,
-              prev_d = prev_i ? t.itemData(prev_i) : null;
-            if( prev_d._type == 'catalog') {
-              return false;
-            } else {
-              return true;
-            }
-          }
-          i = t.hasParent(i) ? t.parent(i) : null;
-          d = i ? t.itemData(i) : null;
-        }
-
-        // by default we do not want to allow create menu
-        return true;
-
-      },
    });
  }