<?php

namespace app\models;

use Yii;
use yii\base\Model;
use yii\data\ActiveDataProvider;
use app\models\Staff;

/**
 * StaffSearch represents the model behind the search form of `app\models\Staff`.
 */
class StaffSearch extends Staff {

    /**
     * {@inheritdoc}
     */
    public function rules() {
        return [
                [['id', 'code', 'card_number', 'department_id'], 'integer'],
                [['name', 'gender', 'email', 'phone', 'address'], 'safe'],
        ];
    }

    /**
     * {@inheritdoc}
     */
    public function scenarios() {
        // bypass scenarios() implementation in the parent class
        return Model::scenarios();
    }

    /**
     * Creates data provider instance with search query applied
     *
     * @param array $params
     *
     * @return ActiveDataProvider
     */
    public function search($params) {
        $query = Staff::find();

        // add conditions that should always apply here

        $dataProvider = new ActiveDataProvider([
            'query' => $query,
        ]);

        $this->load($params);

        if (!$this->validate()) {
            // uncomment the following line if you do not want to return any records when validation fails
            // $query->where('0=1');
            return $dataProvider;
        }

        if ($this->department_id) {
            $m = new Department();
            $departmentChild = $m->departmentChilds($this->department_id);
            $query->andFilterWhere(["IN", "department_id", $departmentChild]);
        }
        // grid filtering conditions
        $query->andFilterWhere([
            'id' => $this->id,
            'card_number' => $this->card_number,
            'birthday' => $this->birthday,
            'date_in' => $this->date_in,
            'created_at' => $this->created_at,
            'modified_at' => $this->modified_at,
        ]);

        $query->andFilterWhere(['like', 'name', $this->name])
                ->andFilterWhere(['like', 'gender', $this->gender])
                ->andFilterWhere(['like', 'email', $this->email])
                ->andFilterWhere(['like', 'phone', $this->phone])
                ->andFilterWhere(['like', 'code', $this->code])
                ->andFilterWhere(['like', 'address', $this->address]);

        return $dataProvider;
    }

}