yiisoft/yii2 · error · yii\base\InvalidCallException

DB Connection is not active.

Error message

DB Connection is not active.

What it means

Error "DB Connection is not active." thrown in yiisoft/yii2.

Source

Thrown at framework/db/Schema.php:373

    public function findUniqueIndexes($table)
    {
        throw new NotSupportedException(get_class($this) . ' does not support getting unique indexes information.');
    }

    /**
     * Returns the ID of the last inserted row or sequence value.
     * @param string $sequenceName name of the sequence object (required by some DBMS)
     * @return string the row ID of the last row inserted, or the last value retrieved from the sequence object
     * @throws InvalidCallException if the DB connection is not active
     * @see https://www.php.net/manual/en/function.PDO-lastInsertId.php
     */
    public function getLastInsertID($sequenceName = '')
    {
        if ($this->db->isActive) {
            return $this->db->pdo->lastInsertId($sequenceName === '' ? null : $this->quoteTableName($sequenceName));
        }

        throw new InvalidCallException('DB Connection is not active.');
    }

    /**
     * @return bool whether this DBMS supports [savepoint](https://en.wikipedia.org/wiki/Savepoint).
     */
    public function supportsSavepoint()
    {
        return $this->db->enableSavepoint;
    }

    /**
     * Creates a new savepoint.
     * @param string $name the savepoint name
     */
    public function createSavepoint($name)
    {
        $this->db->createCommand("SAVEPOINT $name")->execute();
    }

View on GitHub (pinned to 66f00d18a2)

When it happens

Trigger: Thrown at framework/db/Schema.php:373 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of yiisoft/yii2@66f00d18a2 (2026-08-17). Data as JSON: /api/errors/c70f1dfad9ba7d8b. Report an issue: GitHub.