How to select data from old database and insert it into new one within doctrine migration? - zend-framework

Question

I use 'doctrine/DoctrineORMModule' module for zend framework 3 (MVC). I have configured 'orm_default' and can configure 'orm_old' but don't know how to use 'orm_old' within migration file.
I can do this within migration file:
public function up(Schema $schema) : void
{
$sql = "INSERT INTO `some_table` VALUES ('some_value','','',NULL,NULL,'1');";
$this->addSql($sql);
//...
But in general I need run something like this:
INSERT INTO DB2.T2(id, title, description)
SELECT id, title, description FROM DB1.T1;
How to do that?

Answer 1

If I understand correctly, you'd like to use Doctrine Migrations for two database connections: orm_default and orm_old.
This is possible in Doctrine, but not with the Zend Framework DoctrineORMModule. This is mentioned very shortly in the official documentation: https://github.com/doctrine/DoctrineORMModule/blob/master/docs/migrations.rst#multiple-migration-configurations
The best thing you can do is to use two separate cli-config files with the same database connections, and put the migrations in two seperate folders. You can then use the 'default' doctrine CLI tools (vendor/bin/doctrine migrations:migrate ) to run migrations for the two connections.
Adding this functionality to the DoctrineORMModule was requested, but never implemented. You can read more about it right here:
https://github.com/doctrine/DoctrineORMModule/issues/537