read() public méthode

Advances the reader to the next row in a result set.
public read ( ) : array
Résultat array the current row, false if no more row available
DataReader Class Documentation
Exemple #1
0
 /**
  * Advances the reader to the next row in a result set.
  * @return array the current row, false if no more row available
  */
 public function read()
 {
     //Try..Catch to prevent Function sequence error: -11067
     try {
         return parent::read();
     } catch (\Exception $ex) {
     }
     return false;
 }
Exemple #2
0
 /**
  * Advances the reader to the next row in a result set.
  * @return array the current row, false if no more row available
  */
 public function read()
 {
     //Try..Catch to prevent CLI0125E  Function sequence error. SQLSTATE=HY010
     try {
         return parent::read();
     } catch (\Exception $ex) {
     }
     return false;
 }
Exemple #3
0
 /**
  * Renders next batch of rows.
  * @param integer $rowsNumber set to -1 to render all rows
  * @return string
  */
 public function renderChunk($rowsNumber)
 {
     /** @var ActiveDataProvider $dataProvider */
     $dataProvider = $this->grid->dataProvider;
     /** @var \yii\db\ActiveQuery $query */
     $query = $dataProvider->query;
     $result = '';
     if ($this->rowNumber === 0) {
         $result .= $this->renderHeader();
     }
     $rowCount = $this->dataReader->getRowCount();
     for ($i = 0; $i < $rowsNumber || $rowsNumber === -1; $i++) {
         $row = $this->dataReader->read();
         if ($row === false) {
             $this->dataReader = null;
             $result .= $this->renderFooter();
             break;
         }
         $models = $query->populate([$row]);
         $result .= $this->renderRow(reset($models), $this->rowNumber++, $rowCount);
     }
     return $result;
 }