Granada\ORM::save PHP Method

    public function save($ignore = false)
    {
        $query = array();
        // remove any expression fields as they are already baked into the query
        $values = array_values(array_diff_key($this->_dirty_fields, $this->_expr_fields));
        if ($ignore) {
            $query = $this->_build_insert_update();
            $values = array_merge($values, $values);
        } else {
            if (!$this->_is_new) {
                // UPDATE
                // If there are no dirty values, do nothing
                if (empty($values) && empty($this->_expr_fields)) {
                    return true;
                }
                $query = $this->_build_update();
                $values[] = $this->id();
            } else {
                // INSERT
                $query = $this->_build_insert();
            }
        }
        $success = self::_execute($query, $values, $this->_connection_name);
        // If we've just inserted a new record, set the ID of this object
        if ($this->_is_new) {
            $this->_is_new = false;
            if (!$this->id()) {
                if (self::$_db[$this->_connection_name]->getAttribute(PDO::ATTR_DRIVER_NAME) == 'pgsql') {
                    $this->_data[$this->_get_id_column_name()] = self::get_last_statement()->fetchColumn();
                } else {
                    $this->_data[$this->_get_id_column_name()] = self::$_db[$this->_connection_name]->lastInsertId();
                }
            }
        }
        $this->clear_cache();
        $this->_dirty_fields = $this->_expr_fields = array();
        return $success;
    }