Refactoring document and image management

2013-06-03 10:33:01 +05:30
parent 9c1f9cd912
commit 15311f6425
51 changed files with 1204 additions and 1074 deletions
@@ -1,28 +0,0 @@
-INSERT INTO c_configuration (name,enabled) VALUES ('amazon-S3',0);
-
-
-CREATE TABLE IF NOT EXISTS m_external_services (
-	name VARCHAR(150) NOT NULL,
-	value VARCHAR(250),
-	UNIQUE(name) 
-);
-
-INSERT INTO m_external_services (name) VALUES ('s3_bucket_name');
-INSERT INTO m_external_services (name) VALUES ('s3_access_key');
-INSERT INTO m_external_services (name) VALUES ('s3_secret_key');
-
-ALTER TABLE m_document ADD COLUMN storage_type varchar(50);
-
-CREATE TABLE IF NOT EXISTS `m_image`(
-	`id` BIGINT NOT NULL AUTO_INCREMENT,
-	`client_id` BIGINT NOT NULL,
-	`key` varchar(500),
-	`storage_type` varchar(50),
-	FOREIGN KEY (`client_id`) REFERENCES m_client(`id`),
-	PRIMARY KEY (`id`),
-	UNIQUE(client_id)
-);
-
-UPDATE m_document set storage_type='file_system';
-
-insert into m_image (`client_id`,`key`,`storage_type`) select id,`image_key`,'file_system' from m_client where `image_key` IS NOT NULL;
@@ -0,0 +1,70 @@
+INSERT INTO c_configuration (name,enabled) VALUES ('amazon-S3',0);
+
+/*New table for storing details of external services used*/
+CREATE TABLE `c_external_service` (
+	`name` VARCHAR(150) NOT NULL,
+	`value` VARCHAR(250) NULL DEFAULT NULL,
+	UNIQUE INDEX `name` (`name`)
+)
+COLLATE='utf8_general_ci'
+ENGINE=InnoDB;
+
+INSERT INTO c_external_service (name) VALUES ('s3_bucket_name');
+INSERT INTO c_external_service (name) VALUES ('s3_access_key');
+INSERT INTO c_external_service (name) VALUES ('s3_secret_key');
+
+
+
+/*Image tables stores details of all images*/
+CREATE TABLE IF NOT EXISTS `m_image`(
+	`id` BIGINT(20) NOT NULL AUTO_INCREMENT,
+	`location` varchar(500),
+	`storage_type_enum` SMALLINT(5),
+	PRIMARY KEY (`id`)
+)
+COLLATE='utf8_general_ci'
+ENGINE=InnoDB;
+
+/*Client points to image table*/
+ALTER TABLE `m_client`
+	ADD COLUMN `image_id` BIGINT(20) NULL DEFAULT NULL AFTER `display_name`,
+	ADD CONSTRAINT `FK_m_client_m_image` FOREIGN KEY (`image_id`) REFERENCES `m_image` (`id`);
+
+/*Move existing image locations to new table*/
+drop procedure if exists migrate_customer_image_data;
+
+delimiter #
+create procedure migrate_customer_image_data()
+begin
+declare v_counter int unsigned default 0;
+declare num_of_clients INT DEFAULT 0;
+declare curr_client INT DEFAULT 0;
+declare curr_image INT DEFAULT 0;
+declare prev_image INT DEFAULT 0;
+SELECT COUNT(*) FROM m_client INTO num_of_clients;
+while v_counter < num_of_clients do
+	INSERT INTO m_image(`location`,`storage_type_enum`) select image_key, 1 FROM m_client where image_key is not null LIMIT v_counter,1;
+	select ifnull(max(`id`),0) from m_image INTO curr_image;
+	select id FROM m_client where image_key is not null limit v_counter,1 INTO curr_client;
+	IF (prev_image != curr_image) THEN UPDATE m_client set image_id = curr_image where id=curr_client;
+	END IF;
+	set prev_image=curr_image;
+    set v_counter=v_counter+1;
+end while;
+delete from m_image where `location` is null;
+end#
+
+delimiter ;
+call migrate_customer_image_data();
+
+/*Now drop the procedure*/
+drop procedure if exists migrate_customer_image_data;
+
+/*Delete image key from client*/
+ALTER TABLE `m_client` DROP COLUMN `image_key`;
+
+
+/*Add storage type for m_document table and update existing documents to file storage*/
+ALTER TABLE m_document ADD COLUMN storage_type_enum SMALLINT(5);
+UPDATE m_document set storage_type_enum=1;
+