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Add draft loadTableChecks() method, and add tests.

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This commit is contained in:
Wilmer Arambula
2024-05-18 13:35:03 -04:00
parent f3f2f2bb08
commit 4996fd3d91
4 changed files with 93 additions and 10 deletions
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48
framework/db/mysql/Schema.php
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@ -11,6 +11,7 @@ namespace yii\db\mysql;
use Yii;
use yii\base\InvalidConfigException;
use yii\base\NotSupportedException;
use yii\db\CheckConstraint;
use yii\db\Constraint;
use yii\db\ConstraintFinderInterface;
use yii\db\ConstraintFinderTrait;
@ -201,11 +202,54 @@ SQL;
/**
* {@inheritdoc}
* @throws NotSupportedException if this method is called.
*/
protected function loadTableChecks($tableName)
{
throw new NotSupportedException('MySQL does not support check constraints.');
// check version MySQL >= 8.0.16
if (version_compare($this->db->getSlavePdo()->getAttribute(\PDO::ATTR_SERVER_VERSION), '8.0.16', '<')) {
$this->markTestSkipped('MySQL < 8.0.16 does not support CHECK constraints.');
}
$checks = [];
$sql = <<<SQL
SELECT * FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE TABLE_NAME = :tableName
SQL;
$resolvedName = $this->resolveTableName($tableName);
$tableRows = $this->db->createCommand($sql, [':tableName' => $resolvedName->name])->queryAll();
if ($tableRows === []) {
return $checks;
}
foreach ($tableRows as $tableRow) {
$sql = <<<SQL
SELECT * FROM INFORMATION_SCHEMA.CHECK_CONSTRAINTS WHERE CONSTRAINT_NAME = :constraintName
SQL;
$checkRows = $this->db->createCommand($sql, [':constraintName' => $tableRow['CONSTRAINT_NAME']])->queryAll();
foreach ($checkRows as $checkRow) {
$matches = [];
$columnName = null;
if (preg_match('/\(`?([a-zA-Z0-9_]+)`?\s*[><=]/', $checkRow['CHECK_CLAUSE'], $matches)) {
$columnName = $matches[1];
}
$check = new CheckConstraint(
[
'name' => $checkRow['CONSTRAINT_NAME'],
'columnNames' => $columnName,
'expression' => $checkRow['CHECK_CLAUSE'],
]
);
$checks[] = $check;
}
}
return $checks;
}
/**