Started off yesterday with the intention of trying to implement functional Oracle Clobs in Yii similar to how I implemented it in CakePHP a couple years ago. As yesterday went on I kept busting through boundaries and was feeling great about my progress. But Then I hit the roadblock and I wasn’t able to continue. It’s not worth spending another couple days on when I have a deadline for a pilot by Fall. 4000 characters is enough for the pilot.
The result has been to alter the Yii COciSchema. Just changing the declaration of text to a varchar2(4000).
public $columnTypes=array(
'pk' => 'NUMBER(10) NOT NULL PRIMARY KEY',
'string' => 'VARCHAR2(255)',
//'text' => 'CLOB',
'text' => 'VARCHAR2(4000)',
'integer' => 'NUMBER(10)',
'float' => 'NUMBER',
'decimal' => 'NUMBER',
'datetime' => 'TIMESTAMP',
'timestamp' => 'TIMESTAMP',
'time' => 'TIMESTAMP',
'date' => 'DATE',
'binary' => 'BLOB',
'boolean' => 'NUMBER(1)',
'money' => 'NUMBER(19,4)',
);
The issue is Yii (PDO) doesn’t support LOBs well at all, so that declaration didn’t make any sense to begin with.
Hi,
Try using nvl function in oracle. For model that contain clob column. Using sql data provider instead.
For example. Using data provider in yii2 in controller action index
$count = Yii::$app->db->createCommand(‘
SELECT COUNT(*) FROM POST
‘)->queryScalar();
$dataProvider = new SqlDataProvider([
‘sql’ => “SELECT ID, NVL(TEXT_WITH_CLOB, ‘None’) FROM POST”,
‘key’ => ‘ID’,
‘totalCount’ => $count,
‘sort’ => [
‘attributes’ => [
‘ID’,
‘TEXT_WITH_CLOB’,
],
],
‘pagination’ => [
‘pageSize’ => 20,
],
]);
return $this->render(‘index’, [
‘dataProvider’ => $dataProvider,
]);