framework/db/sqlite/Schema.php
protected function loadTableForeignKeys($tableName)
    {
        $foreignKeys = $this->db->createCommand('PRAGMA FOREIGN_KEY_LIST (' . $this->quoteValue($tableName) . ')')->queryAll();
        $foreignKeys = $this->normalizePdoRowKeyCase($foreignKeys, true);
        $foreignKeys = ArrayHelper::index($foreignKeys, null, 'table');
        ArrayHelper::multisort($foreignKeys, 'seq', SORT_ASC, SORT_NUMERIC);
        $result = [];
        foreach ($foreignKeys as $table => $foreignKey) {
            $result[] = new ForeignKeyConstraint([
                'columnNames' => ArrayHelper::getColumn($foreignKey, 'from'),
                'foreignTableName' => $table,
                'foreignColumnNames' => ArrayHelper::getColumn($foreignKey, 'to'),
                'onDelete' => isset($foreignKey[0]['on_delete']) ? $foreignKey[0]['on_delete'] : null,
                'onUpdate' => isset($foreignKey[0]['on_update']) ? $foreignKey[0]['on_update'] : null,
            ]);
        }

        return $result;
    }
protected function loadTableForeignKeys($tableName)
    {
        $foreignKeys = $this->db->createCommand('PRAGMA FOREIGN_KEY_LIST (' . $this->quoteValue($tableName) . ')')->queryAll();
        $foreignKeys = $this->normalizePdoRowKeyCase($foreignKeys, true);
        $foreignKeys = ArrayHelper::index($foreignKeys, null, 'table');
        ArrayHelper::multisort($foreignKeys, 'seq', SORT_ASC, SORT_NUMERIC);
        $result = [];
        foreach ($foreignKeys as $table => $foreignKey) {
            $result[] = new ForeignKeyConstraint([
                'columnNames' => ArrayHelper::getColumn($foreignKey, 'from'),
                'foreignTableName' => $table,
                'foreignColumnNames' => ArrayHelper::getColumn($foreignKey, 'to'),
                'onDelete' => isset($foreignKey[0]['on_delete']) ? $foreignKey[0]['on_delete'] : null,
                'onUpdate' => isset($foreignKey[0]['on_update']) ? $foreignKey[0]['on_update'] : null,
            ]);
        }

        return $result;
    }
{@inheritdoc}