lib/components/db/fields/Base.php
public function setFormat($value)
    {
        if (is_array($value)) {
            if (!isset($value['class'])) {
                $value['class'] = $this->determineFormatClass();
            }
            $value['field'] = $this;
            $value = Yii::createObject($value);
        }
        $this->_format = $value;
    }
public function setFormat($value)
    {
        if (is_array($value)) {
            if (!isset($value['class'])) {
                $value['class'] = $this->determineFormatClass();
            }
            $value['field'] = $this;
            $value = Yii::createObject($value);
        }
        $this->_format = $value;
    }
Set format.

@param unknown $value

@return unknown