PHP DataSource::execute方法代码示例

 /**
  * 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()));
 }