/**
* Alter Table method
*
* @param string $type Type of operation to be done
* @param array $tables List of tables and fields
* @return boolean Return true in case of success, otherwise false
* @access protected
*/
protected function _alterTable($type, $tables)
{
foreach ($tables as $table => $fields) {
$indexes = array();
if (isset($fields['indexes'])) {
$indexes = $fields['indexes'];
unset($fields['indexes']);
}
foreach ($fields as $field => $col) {
$model = new Model(array('table' => $table, 'ds' => $this->connection));
$tableFields = $this->db->describe($model);
if ($type === 'drop') {
$field = $col;
}
if ($type !== 'add' && !isset($tableFields[$field])) {
throw new MigrationException($this, sprintf(__d('migrations', 'Field "%s" does not exists in "%s".', true), $field, $table));
}
switch ($type) {
case 'add':
if (isset($tableFields[$field])) {
throw new MigrationException($this, sprintf(__d('migrations', 'Field "%s" already exists in "%s".', true), $field, $table));
}
$sql = $this->db->alterSchema(array($table => array('add' => array($field => $col))));
break;
case 'drop':
$sql = $this->db->alterSchema(array($table => array('drop' => array($field => array()))));
break;
case 'change':
$sql = $this->db->alterSchema(array($table => array('change' => array($field => array_merge($tableFields[$field], $col)))));
break;
case 'rename':
$sql = $this->db->alterSchema(array($table => array('change' => array($field => array_merge($tableFields[$field], array('name' => $col))))));
break;
}
if ($type == 'rename') {
$data = array('table' => $table, 'old_name' => $field, 'new_name' => $col);
} else {
$data = array('table' => $table, 'field' => $field);
}
$this->_invokeCallbacks('beforeAction', $type . '_field', $data);
if (@$this->db->execute($sql) === false) {
throw new MigrationException($this, sprintf(__d('migrations', 'SQL Error: %s', true), $this->db->error));
}
$this->_invokeCallbacks('afterAction', $type . '_field', $data);
}
foreach ($indexes as $key => $index) {
if (is_numeric($key)) {
$key = $index;
$index = array();
}
$sql = $this->db->alterSchema(array($table => array($type => array('indexes' => array($key => $index)))));
$this->_invokeCallbacks('beforeAction', $type . '_index', array('table' => $table, 'index' => $key));
if (@$this->db->execute($sql) === false) {
throw new MigrationException($this, sprintf(__d('migrations', 'SQL Error: %s', true), $this->db->error));
}
$this->_invokeCallbacks('afterAction', $type . '_index', array('table' => $table, 'index' => $key));
}
}
return true;
}
protected function _execute($sql)
{
if (@$this->db->execute($sql) === false) {
throw new Exception($this, sprintf(__d('Auditable', 'SQL Error: %s'), $this->db->lastError()));
}
return true;
}
/**
* (non-PHPdoc)
* @see Syncroton_Backend_IBackend::update()
*/
public function update($model)
{
if (!$model instanceof $this->_modelInterfaceName) {
throw new InvalidArgumentException('$model must be instanace of ' . $this->_modelInterfaceName);
}
$data = $this->_convertModelToArray($model);
$this->_db->execute(sprintf('UPDATE %1$s SET %2$s %3$s', $this->_tablePrefix . $this->_tableName, implode('=?, ', array_keys($data)) . '=?', $this->_db->conditions(array('id' => $model->id))), array(), array_values($data));
return $this->get($model->id);
}
/**
* Alter Table method
*
* @param string $type Type of operation to be done
* @param array $tables List of tables and fields
* @return boolean Return true in case of success, otherwise false
* @access protected
*/
public function _alterTable($type, $tables)
{
foreach ($tables as $table => $fields) {
$indexes = array();
if (isset($fields['indexes'])) {
$indexes = $fields['indexes'];
unset($fields['indexes']);
}
foreach ($fields as $field => $col) {
switch ($type) {
case 'add':
$sql = $this->db->alterSchema(array($table => array('add' => array($field => $col))));
break;
case 'drop':
$field = $col;
$sql = $this->db->alterSchema(array($table => array('drop' => array($field => array()))));
break;
case 'change':
$model = new Model(array('table' => $table, 'ds' => $this->connection));
$tableFields = $this->db->describe($model);
$sql = $this->db->alterSchema(array($table => array('change' => array($field => array_merge($tableFields[$field], $col)))));
break;
case 'rename':
$model = new Model(array('table' => $table, 'ds' => $this->connection));
$tableFields = $this->db->describe($model);
$sql = $this->db->alterSchema(array($table => array('change' => array($field => array_merge($tableFields[$field], array('name' => $col))))));
break;
}
if ($type == 'rename') {
$data = array('table' => $table, 'old_name' => $field, 'new_name' => $col);
} else {
$data = array('table' => $table, 'field' => $field);
}
$this->__invokeCallbacks('beforeAction', $type . '_field', $data);
$this->db->execute($sql);
$this->__invokeCallbacks('afterAction', $type . '_field', $data);
}
foreach ($indexes as $key => $index) {
if (is_numeric($key)) {
$key = $index;
$index = array();
}
$sql = $this->db->alterSchema(array($table => array($type => array('indexes' => array($key => $index)))));
$this->__invokeCallbacks('beforeAction', $type . '_index', array('table' => $table, 'index' => $key));
$this->db->execute($sql);
$this->__invokeCallbacks('afterAction', $type . '_index', array('table' => $table, 'index' => $key));
}
}
return true;
}
/**
* Alter Indexes method
*
* @param array $indexes List of indexes
* @param string $type Type of operation to be done
* @param array $tables List of tables and fields
* @return void
*/
protected function _alterIndexes($indexes, $type, $table)
{
foreach ($indexes as $key => $index) {
if (is_numeric($key)) {
$key = $index;
$index = array();
}
$sql = $this->db->alterSchema(array($table => array($type => array('indexes' => array($key => $index)))));
$this->_invokeCallbacks('beforeAction', $type . '_index', array('table' => $table, 'index' => $key));
if (@$this->db->execute($sql) === false) {
throw new MigrationException($this, sprintf(__d('migrations', 'SQL Error: %s'), $this->db->error));
}
$this->_invokeCallbacks('afterAction', $type . '_index', array('table' => $table, 'index' => $key));
}
}
/**
* @param DataSource $sourceDb
* @param $viewName
*
* @return mixed
*/
protected function getCreateStatement(DataSource $sourceDb, $viewName)
{
$resultSet = $sourceDb->execute(sprintf('SHOW CREATE VIEW %s', $viewName));
foreach ($resultSet as $result) {
if (array_key_exists('Create View', $result) && !empty($result['Create View'])) {
preg_match('/(?:CREATE(?:\\s+OR\\s+REPLACE)?\\s+)' . '(ALGORITHM=[^\\s]+\\s+)?(?:DEFINER=`[^`]+`@`[^`]+`\\s+)?' . '(?:SQL\\s+SECURITY\\s+(?:DEFINER|INVOKER)\\s+)?VIEW\\s+`([^`]+)`\\s+AS\\s+(.*)$/', $result['Create View'], $matches);
return sprintf('CREATE OR REPLACE %sVIEW `%s` AS %s', $matches[1], $matches[2], $matches[3]);
}
}
throw new InternalErrorException(sprintf('Could not fetch the create statement for view %s in schema %s. Check your MySQL View fixture settings!', $viewName, $sourceDb->getSchemaName()));
}
