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m140506_102106_rbac_init.php
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m140506_102106_rbac_init.php
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<?php
/**
* @link http://www.yiiframework.com/
* @copyright Copyright (c) 2008 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
use yii\base\InvalidConfigException;
use yii\rbac\DbManager;
/**
* Initializes RBAC tables.
*
* @author Alexander Kochetov <creocoder@gmail.com>
* @since 2.0
*/
class m140506_102106_rbac_init extends \yii\db\Migration
{
/**
* @throws yii\base\InvalidConfigException
* @return DbManager
*/
protected function getAuthManager()
{
$authManager = Yii::$app->getAuthManager();
if (!$authManager instanceof DbManager) {
throw new InvalidConfigException('You should configure "authManager" component to use database before executing this migration.');
}
return $authManager;
}
/**
* @return bool
*/
protected function isMSSQL()
{
return $this->db->driverName === 'mssql' || $this->db->driverName === 'sqlsrv' || $this->db->driverName === 'dblib';
}
protected function isOracle()
{
return $this->db->driverName === 'oci';
}
/**
* {@inheritdoc}
*/
public function up()
{
$authManager = $this->getAuthManager();
$this->db = $authManager->db;
$schema = $this->db->getSchema()->defaultSchema;
$tableOptions = null;
if ($this->db->driverName === 'mysql') {
// http://stackoverflow.com/questions/766809/whats-the-difference-between-utf8-general-ci-and-utf8-unicode-ci
$tableOptions = 'CHARACTER SET utf8 COLLATE utf8_unicode_ci ENGINE=InnoDB';
}
$this->createTable($authManager->ruleTable, [
'name' => $this->string(64)->notNull(),
'data' => $this->binary(),
'created_at' => $this->integer(),
'updated_at' => $this->integer(),
'PRIMARY KEY ([[name]])',
], $tableOptions);
$this->createTable($authManager->itemTable, [
'name' => $this->string(64)->notNull(),
'type' => $this->smallInteger()->notNull(),
'description' => $this->text(),
'rule_name' => $this->string(64),
'data' => $this->binary(),
'created_at' => $this->integer(),
'updated_at' => $this->integer(),
'PRIMARY KEY ([[name]])',
'FOREIGN KEY ([[rule_name]]) REFERENCES ' . $authManager->ruleTable . ' ([[name]])' .
$this->buildFkClause('ON DELETE SET NULL', 'ON UPDATE CASCADE'),
], $tableOptions);
$this->createIndex('idx-auth_item-type', $authManager->itemTable, 'type');
$this->createTable($authManager->itemChildTable, [
'parent' => $this->string(64)->notNull(),
'child' => $this->string(64)->notNull(),
'PRIMARY KEY ([[parent]], [[child]])',
'FOREIGN KEY ([[parent]]) REFERENCES ' . $authManager->itemTable . ' ([[name]])' .
$this->buildFkClause('ON DELETE CASCADE', 'ON UPDATE CASCADE'),
'FOREIGN KEY ([[child]]) REFERENCES ' . $authManager->itemTable . ' ([[name]])' .
$this->buildFkClause('ON DELETE CASCADE', 'ON UPDATE CASCADE'),
], $tableOptions);
$this->createTable($authManager->assignmentTable, [
'item_name' => $this->string(64)->notNull(),
'user_id' => $this->string(64)->notNull(),
'created_at' => $this->integer(),
'PRIMARY KEY ([[item_name]], [[user_id]])',
'FOREIGN KEY ([[item_name]]) REFERENCES ' . $authManager->itemTable . ' ([[name]])' .
$this->buildFkClause('ON DELETE CASCADE', 'ON UPDATE CASCADE'),
], $tableOptions);
if ($this->isMSSQL()) {
$this->execute("CREATE TRIGGER {$schema}.trigger_auth_item_child
ON {$schema}.{$authManager->itemTable}
INSTEAD OF DELETE, UPDATE
AS
DECLARE @old_name VARCHAR (64) = (SELECT name FROM deleted)
DECLARE @new_name VARCHAR (64) = (SELECT name FROM inserted)
BEGIN
IF COLUMNS_UPDATED() > 0
BEGIN
IF @old_name <> @new_name
BEGIN
ALTER TABLE {$authManager->itemChildTable} NOCHECK CONSTRAINT FK__auth_item__child;
UPDATE {$authManager->itemChildTable} SET child = @new_name WHERE child = @old_name;
END
UPDATE {$authManager->itemTable}
SET name = (SELECT name FROM inserted),
type = (SELECT type FROM inserted),
description = (SELECT description FROM inserted),
rule_name = (SELECT rule_name FROM inserted),
data = (SELECT data FROM inserted),
created_at = (SELECT created_at FROM inserted),
updated_at = (SELECT updated_at FROM inserted)
WHERE name IN (SELECT name FROM deleted)
IF @old_name <> @new_name
BEGIN
ALTER TABLE {$authManager->itemChildTable} CHECK CONSTRAINT FK__auth_item__child;
END
END
ELSE
BEGIN
DELETE FROM {$schema}.{$authManager->itemChildTable} WHERE parent IN (SELECT name FROM deleted) OR child IN (SELECT name FROM deleted);
DELETE FROM {$schema}.{$authManager->itemTable} WHERE name IN (SELECT name FROM deleted);
END
END;");
}
}
/**
* {@inheritdoc}
*/
public function down()
{
$authManager = $this->getAuthManager();
$this->db = $authManager->db;
$schema = $this->db->getSchema()->defaultSchema;
if ($this->isMSSQL()) {
$this->execute("DROP TRIGGER {$schema}.trigger_auth_item_child;");
}
$this->dropTable($authManager->assignmentTable);
$this->dropTable($authManager->itemChildTable);
$this->dropTable($authManager->itemTable);
$this->dropTable($authManager->ruleTable);
}
protected function buildFkClause($delete = '', $update = '')
{
if ($this->isMSSQL()) {
return '';
}
if ($this->isOracle()) {
return ' ' . $delete;
}
return implode(' ', ['', $delete, $update]);
}
}