/**
  * @return \yii\db\ActiveQuery
  */
 public function getSolicitacaos()
 {
     return $this->hasMany(Solicitacao::className(), ['id_categoria' => 'id']);
 }
 /**
  * @return \yii\db\ActiveQuery
  */
 public function getSolicitacaos()
 {
     return $this->hasMany(Solicitacao::className(), ['id_usuario' => 'id']);
 }