Updated Example (API) to use the new CMS_STORAGE interface.

persistence/implementation/common/cms_storage_null.e

@@ -45,11 +45,13 @@ feature -- User Nodes
 	user_collaborator_nodes (a_id: like {CMS_USER}.id): LIST[CMS_NODE]
 			-- Possible list of nodes where the user identified by `a_id', is a collaborator.
 		do
+			create {ARRAYED_LIST[CMS_NODE]} Result.make (0)
 		end
 
 	user_author_nodes (a_id: like {CMS_USER}.id): LIST[CMS_NODE]
 			-- Possible list of nodes where the user identified by `a_id', is the author.
 		do
+			create {ARRAYED_LIST[CMS_NODE]} Result.make (0)
 		end
 
 feature -- Change: user
@@ -67,6 +69,7 @@ feature -- Access: roles and permissions
 
 	user_roles: LIST [CMS_USER_ROLE]
 		do
+			create {ARRAYED_LIST[CMS_USER_ROLE]} Result.make (0)
 		end
 
 
@@ -104,6 +107,7 @@ feature -- Access: node
 	node_collaborators (a_id: like {CMS_NODE}.id): LIST [CMS_USER]
 			-- Possible list of node's collaborator.
 		do
+			create {ARRAYED_LIST[CMS_USER]} Result.make (0)
 		end
 
 feature -- Node

persistence/implementation/mysql/scripts/create_database.sql

@@ -25,6 +25,7 @@ CREATE TABLE IF NOT EXISTS `cms_dev`.`users` (
   PRIMARY KEY (`id`),
   UNIQUE INDEX `username` (`username` ASC))
 ENGINE = InnoDB
+AUTO_INCREMENT = 2
 DEFAULT CHARACTER SET = latin1;
 
 
@@ -40,7 +41,7 @@ CREATE TABLE IF NOT EXISTS `cms_dev`.`nodes` (
   `summary` TEXT NOT NULL,
   `content` MEDIUMTEXT NOT NULL,
   `author_id` INT(10) UNSIGNED NULL DEFAULT NULL,
-  `version` INT(10) ZEROFILL NULL,
+  `version` INT(10) UNSIGNED ZEROFILL NULL DEFAULT NULL,
   `editor_id` INT(10) UNSIGNED NULL DEFAULT NULL,
   PRIMARY KEY (`id`),
   INDEX `fk_nodes_users1_idx` (`author_id` ASC),
@@ -56,6 +57,7 @@ CREATE TABLE IF NOT EXISTS `cms_dev`.`nodes` (
     ON DELETE NO ACTION
     ON UPDATE NO ACTION)
 ENGINE = InnoDB
+AUTO_INCREMENT = 11
 DEFAULT CHARACTER SET = latin1;
 
 

persistence/implementation/mysql/src/cms_storage_mysql.e

@@ -189,6 +189,7 @@ feature -- Node
 
 	delete_node (a_id: INTEGER_64)
 		do
+			node_provider.delete_from_user_nodes(a_id)
 			node_provider.delete_node (a_id)
 			post_node_provider_execution
 		end

persistence/implementation/mysql/src/provider/node_data_provider.e

@@ -224,6 +224,18 @@ feature -- Basic operations
 			post_execution
 		end
 
+	delete_from_user_nodes (a_id: INTEGER_64)
+		local
+			l_parameters: STRING_TABLE [ANY]
+		do
+			log.write_information (generator + ".delete_from_user_nodes")
+			create l_parameters.make (1)
+			l_parameters.put (a_id, "id")
+			db_handler.set_query (create {DATABASE_QUERY}.data_reader (sql_delete_from_user_node, l_parameters))
+			db_handler.execute_change
+			post_execution
+		end
+
 feature -- Basic Operations: User_Nodes
 
 	add_author (a_user_id: INTEGER_64; a_node_id: INTEGER_64)
@@ -413,6 +425,8 @@ feature {NONE} -- Sql Queries: USER_ROLES collaborators, author
 
 	Select_exist_user_node: STRING= "Select Count(*) from Users_nodes where users_id=:user_id and nodes_id=:node_id;"
 
+	sql_delete_from_user_node: STRING = "delete from users_nodes where nodes_id=:id"
+
 
 feature --