<?php

/**
 * This is the model class for table "widget_instance".
 *
 * The followings are the available columns in table 'widget_instance':
 * @property integer $id
 * @property string $title
 * @property string $options
 * @property integer $widget_id
 *
 * The followings are the available model relations:
 * @property Widget $widget
 */
class WidgetInstance extends CActiveRecord {

    /**
     * @return string the associated database table name
     */
    public function tableName() {
        return 'widget_instance';
    }

    /**
     * @return array validation rules for model attributes.
     */
    public function rules() {
// NOTE: you should only define rules for those attributes that
// will receive user inputs.
        return array(
            array('title, options, widget_id', 'required'),
            array('widget_id', 'numerical', 'integerOnly' => true),
            array('title', 'length', 'max' => 200),
            // The following rule is used by search().
// @todo Please remove those attributes that should not be searched.
            array('id, title,  options, widget_id', 'safe', 'on' => 'search'),
        );
    }

    /**
     * @return array relational rules.
     */
    public function relations() {
// NOTE: you may need to adjust the relation name and the related
// class name for the relations automatically generated below.
        return array(
            'widget' => array(self::BELONGS_TO, 'Widget', 'widget_id'),
        );
    }

    /**
     * @return array customized attribute labels (name=>label)
     */
    public function attributeLabels() {
        return array(
            'id' => Yii::t("admin", "ID"),
            'title' => Yii::t("admin", "Title"),
            'options' => Yii::t("admin", "Options"),
            'widget_id' => Yii::t("admin", "Widget"),
        );
    }

    /**
     * Retrieves a list of models based on the current search/filter conditions.
     *
     * Typical usecase:
     * - Initialize the model fields with values from filter form.
     * - Execute this method to get CActiveDataProvider instance which will filter
     * models according to data in model fields.
     * - Pass data provider to CGridView, CListView or any similar widget.
     *
     * @return CActiveDataProvider the data provider that can return the models
     * based on the search/filter conditions.
     */
    public function search() {
// @todo Please modify the following code to remove attributes that should not be searched.
        $criteria = new CDbCriteria;
        $criteria->compare('id', $this->id);
        $criteria->compare('title', $this->title, true);
        $criteria->compare('options', $this->options, true);
        $criteria->compare('widget_id', $this->widget_id);
        return new CActiveDataProvider($this, array(
            'criteria' => $criteria,
        ));
    }

    /**
     * Returns the static model of the specified AR class.
     * Please note that you should have this exact method in all your CActiveRecord descendants!
     * @param string $className active record class name.
     * @return WidgetInstance the static model class
     */
    public static function model($className = __CLASS__) {
        return parent::model($className);
    }

    /**
     * Returns Widget Options as array instead of stored json
     * @return array
     */
    public function getOptions() {
        return CJSON::decode($this->options);
    }

    protected function beforeValidate() {
        if ($this->options === NULL) {
            $this->options = array();
        }
        if (is_array($this->options)) {
            $this->options = CJSON::encode($this->options);
        }
        return parent::beforeSave();
    }

    public function getDefaultOptions() {
        if (class_exists($this->widget->class)) {
            $class = new $this->widget->class;
            if (method_exists($class, 'getOptions') && is_callable(array($class, 'getOptions'))) {
                $defaultOptions = call_user_func(array($class, 'getOptions'));
                if (is_array($defaultOptions)) {
                    return $defaultOptions;
                }
            }
        }
        return array();
    }

}
