/**
  * Creates data provider instance with search query applied
  *
  * @param array $params
  *
  * @return ActiveDataProvider
  */
 public function search($params)
 {
     $query = Freelance::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, 'start_date' => $this->start_date, 'end_date' => $this->end_date, 'success_date' => $this->success_date, 'create_date' => $this->create_date]);
     $query->andFilterWhere(['like', 'ref', $this->ref])->andFilterWhere(['like', 'title', $this->title])->andFilterWhere(['like', 'description', $this->description])->andFilterWhere(['like', 'covenant', $this->covenant])->andFilterWhere(['like', 'docs', $this->docs]);
     return $dataProvider;
 }
 private function removeUploadDir($dir)
 {
     BaseFileHelper::removeDirectory(Freelance::getUploadPath() . $dir);
 }