FIX: add autoincrement to all ID fields

database/schema.sql

@@ -1,5 +1,5 @@
 -- MySQL Script generated by MySQL Workbench
--- Út 26. leden 2016, 21:33:51 CET
+-- Út 26. leden 2016, 21:53:01 CET
 -- Model: New Model    Version: 1.0
 -- MySQL Workbench Forward Engineering
 
@@ -45,7 +45,7 @@ ENGINE = InnoDB;
 -- Table `files`
 -- -----------------------------------------------------
 CREATE TABLE IF NOT EXISTS `files` (
-  `id` INT NOT NULL,
+  `id` INT NOT NULL AUTO_INCREMENT,
   `user_id` INT NOT NULL COMMENT 'User, who uploaded this file',
   `created_at` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
   `filename` VARCHAR(128) NOT NULL,
@@ -66,7 +66,7 @@ COMMENT = 'Table containing files which were uploaded into system.';
 -- Table `contents`
 -- -----------------------------------------------------
 CREATE TABLE IF NOT EXISTS `contents` (
-  `id` INT NOT NULL,
+  `id` INT NOT NULL AUTO_INCREMENT,
   `user_id` INT NOT NULL,
   `module_handler` VARCHAR(255) NOT NULL,
   `created_at` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
@@ -111,7 +111,7 @@ COMMENT = 'Table with all content pages.';
 -- Table `content_history`
 -- -----------------------------------------------------
 CREATE TABLE IF NOT EXISTS `content_history` (
-  `id` INT NOT NULL,
+  `id` INT NOT NULL AUTO_INCREMENT,
   `user_id` INT NOT NULL,
   `content_id` INT NOT NULL,
   `changed_at` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
@@ -154,7 +154,7 @@ COMMENT = 'Widget type table contains information about all installed widgets. T
 -- Table `widgets`
 -- -----------------------------------------------------
 CREATE TABLE IF NOT EXISTS `widgets` (
-  `id` INT NOT NULL,
+  `id` INT NOT NULL AUTO_INCREMENT,
   `widget_type_handler` VARCHAR(255) NOT NULL,
   `user_id` INT NOT NULL COMMENT 'User ID who created this widget',
   `created_at` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
@@ -223,7 +223,7 @@ ENGINE = InnoDB;
 -- Table `custom_field_types`
 -- -----------------------------------------------------
 CREATE TABLE IF NOT EXISTS `custom_field_types` (
-  `id` INT NOT NULL,
+  `id` INT NOT NULL AUTO_INCREMENT,
   `name` VARCHAR(64) NOT NULL COMMENT 'Name of custom field. Given as a translation string (e.g. as dir/section.translation)',
   `handler` VARCHAR(255) NOT NULL COMMENT 'Class for handling this type of custom field',
   PRIMARY KEY (`id`),
@@ -237,7 +237,7 @@ COMMENT = 'List of all custom field types.';
 -- Table `custom_fields`
 -- -----------------------------------------------------
 CREATE TABLE IF NOT EXISTS `custom_fields` (
-  `id` INT NOT NULL,
+  `id` INT NOT NULL AUTO_INCREMENT,
   `name` VARCHAR(128) NOT NULL,
   `type_id` INT NOT NULL COMMENT 'Foreign key to custom_field_types table',
   `description` MEDIUMTEXT NULL DEFAULT NULL COMMENT 'Description used for detailed information about meaning of given custom field',
@@ -307,7 +307,7 @@ COMMENT = 'Table used for assigning different custom fields to different modules
 -- Table `action_log_types`
 -- -----------------------------------------------------
 CREATE TABLE IF NOT EXISTS `action_log_types` (
-  `id` INT NOT NULL,
+  `id` INT NOT NULL AUTO_INCREMENT,
   `name` VARCHAR(128) NOT NULL,
   `value` VARCHAR(128) NOT NULL COMMENT 'Log content - represented as translation string.',
   PRIMARY KEY (`id`))
@@ -319,7 +319,7 @@ COMMENT = 'List of all types which can be logged.';
 -- Table `action_log`
 -- -----------------------------------------------------
 CREATE TABLE IF NOT EXISTS `action_log` (
-  `id` INT NOT NULL,
+  `id` INT NOT NULL AUTO_INCREMENT,
   `type_id` INT NOT NULL,
   `user_id` INT NOT NULL,
   `created_at` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,