<?php

namespace common\models;

use Yii;

/**
 * This is the model class for table "specialization".
 *
 * @property integer $specialization_id
 * @property integer $specialization_pid
 * @property string $specialization_name
 * @property string $image
 * @property string $background
 */
class Specialization extends \yii\db\ActiveRecord
{
    /**
     * @inheritdoc
     */
    public static function tableName()
    {
        return 'specialization';
    }

    /**
     * @inheritdoc
     */
    public function rules()
    {
        return [
            [['specialization_pid','status'], 'integer'],
            [['specialization_pid'], 'default', 'value' => '0',],
            [['specialization_name'], 'required'],
            [['specialization_name','image','background'], 'string', 'max' => 255],
        ];
    }

    /**
     * @inheritdoc
     */
    public function attributeLabels()
    {
        return [
            'specialization_id' => 'Specialization ID',
            'specialization_pid' => 'Specialization Pid',
            'specialization_name' => 'Specialization Name',
            'specialization_parent_name' => 'Specialization Parent Name',
            'image' => 'Картинка',
            'background' => 'Background',
            'status' => 'Status',
        ];
    }


    public function getParent()
    {
        return $this->hasOne(self::className(), ['specialization_id' => 'specialization_pid']);
    }

    public function getChildren()
    {
        return $this->hasMany(self::className(), ['specialization_pid' => 'specialization_id']);
    }

}