protected function _getSchemaCache($model = null) {
		if (empty($model) || !isset($this->_schemaCache[$model])) {
			return null;
		}

		return $this->_schemaCache[$model];
	}
protected function _getSchemaCache($model = null) {
		if (empty($model) || !isset($this->_schemaCache[$model])) {
			return null;
		}

		return $this->_schemaCache[$model];
	}
protected function _getSchemaCache ( $ model = null ) { if ( empty ( $ model ) || ! isset ( $ this -> _schemaCache [ $ model ] ) ) { return null ; } return $ this -> _schemaCache [ $ model ] ; }
Return schema for model from cache.

@param string $model Name of model for return schema.
@return array|null Array of schema, or null on failure.
Return schema for model from cache .