Question

我使用Yii MVC。

我必须经常在数据表中添加新列。

我想使用Gii并重新生成model并保留我制作的内容;常数，变量，规则，关系等变化......

所以，让我们以url类模型为例：

<?php

/**
 * This is the model class for table "url".
 *
 * The followings are the` available columns in table 'url':
 * @property string $id
 * @property integer $instance_id
 * @property integer $website_id
 * @property string $link
 * @property string $title
 * @property integer $created
 * @property integer $updated
 * @property integer $status
 */
class Url extends CActiveRecord {

    const ACTIVE = 1;

    /**
     * Returns the static model of the specified AR class.
     * @param string $className active record class name.
     * @return Url the static model class
     */
    public static function model($className = __CLASS__) {
        return parent::model($className);
    }

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

    /**
     * @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('instance_id, website_id, link, title, created, updated, status', 'required'),
            array('instance_id, website_id, created, updated, status', 'numerical', 'integerOnly' => true),
            array('link, title', 'length', 'max' => 255),
            array('link', 'unique'),
            // The following rule is used by search().
            // Please remove those attributes that should not be searched.
            array('id, instance_id, website_id, link, title, created, updated, status', '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(
        );
    }

    /**
     * @return array customized attribute labels (name=>label)
     */
    public function attributeLabels() {
        return array(
            'id' => 'ID',
            'instance_id' => 'Instance',
            'website_id' => 'Website',
            'link' => 'Link',
            'title' => 'Title',
            'created' => 'Created',
            'updated' => 'Updated',
            'status' => 'Status',
        );
    }

    /**
     * Retrieves a list of models based on the current search/filter conditions.
     * @return CActiveDataProvider the data provider that can return the models based on the search/filter conditions.
     */
    public function search() {
        // Warning: Please modify the following code to remove attributes that
        // should not be searched.

        $criteria = new CDbCriteria;

        $criteria->compare('id', $this->id, true);
        $criteria->compare('instance_id', $this->instance_id);
        $criteria->compare('website_id', $this->website_id);
        $criteria->compare('link', $this->link, true);
        $criteria->compare('title', $this->title, true);
        $criteria->compare('created', $this->created);
        $criteria->compare('updated', $this->updated);
        $criteria->compare('status', $this->status);

        return new CActiveDataProvider($this, array(
            'criteria' => $criteria,
        ));
    }

}

当我重新生成model时，const和rule unique将会丢失

所以，我创建了一个新的model class，UrlM，它扩展了url模型类，并且这个类加强了我的所有增强功能：

<?php

class UrlM extends Url {

    const ACTIVE = 1;

    public function rules() {
        return array(
            array('link', 'unique'),
        );
    }

    public function relations() {
        return array(
        );
    }

}

如何将url模型类中的规则与rules模型类中的urlm结合起来？

同样的答案应该适用于未来的增强功能，例如relations

Answer 1

父类的每个函数 - 如rules()，relations()等返回数组。因此，您可以使用parent::rules()调用，然后加入“数组”。

public function rules() {
  $myParentRules=parent::rules();
  $myConcatRules=$myParentRules + array(
    array('link', 'unique'),
  );
  return $myConcatRules;
}

Answer 2

array_merge会帮助你。

    public function rules() {
    $myRules = array(
        array('id', 'numerical', 'integerOnly'=>true),
    );

    return array_merge(parent::rules(),$myRules);

}

如何在Yii中连接相同AR模型的规则

2 个答案: