<?php

namespace app\modules\question\models;

use Yii;
use yii\base\Model;
use yii\data\ActiveDataProvider;
use app\modules\question\models\Answer;
use yii\db\ActiveQuery;

/**
 * AnswerSearch represents the model behind the search form about `app\modules\question\models\Answer`.
 */
class AnswerSearch extends Answer
{
    /**
     * @inheritdoc
     */
    public function rules()
    {
        return [
            [['id', 'pid', 'author_id', 'view_count', 'comment_count', 'favorite_count', 'like_count', 'hate_count', 'status', 'created_at', 'updated_at'], 'integer'],
            [['subject', 'content', 'type'], '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, ActiveQuery $query = null)
    {
        $query === null && $query = Answer::find();

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

        $this->load($params);

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

        $query->andFilterWhere([
            'id' => $this->id,
            'pid' => $this->pid,
            'author_id' => $this->author_id,
            'view_count' => $this->view_count,
            'comment_count' => $this->comment_count,
            'favorite_count' => $this->favorite_count,
            'like_count' => $this->like_count,
            'hate_count' => $this->hate_count,
            'status' => $this->status,
            'created_at' => $this->created_at,
            'updated_at' => $this->updated_at,
        ]);

        $query->andFilterWhere(['like', 'subject', $this->subject])
            ->andFilterWhere(['like', 'content', $this->content])
            ->andFilterWhere(['like', 'type', $this->type]);

        return $dataProvider;
    }
}
