foreign key constraint

[boo-code]

Syncing stops because of foreign key constraint between two collections. directus-extension-sync shows error in console and crashes.

Solution would be to run "SET FOREIGN_KEY_CHECKS=0;" before pushing to DB, and then "SET FOREIGN_KEY_CHECKS=1;" when push is done. But how to set these additional DB commands in config or directus-extension-sync module itself?

[boo-code]

errors: [
{
"message": "alter table cluster_analysis_data modify product int null - Cannot change column 'product': used in a foreign key constraint 'cluster_analysis_data_product_foreign'",
"extensions": {
"code": "INTERNAL_SERVER_ERROR"
}
}
]
response: {}

[EdouardDem]

Hi @boo-code

Solution would be to run "SET FOREIGN_KEY_CHECKS=0;" before pushing to DB, and then "SET FOREIGN_KEY_CHECKS=1;" when push is done. But how to set these additional DB commands in config or directus-extension-sync module itself?

No, you can't inject DB commands during push.

It seems that you are trying to run a migration of schema with existing data. This is related to the schema snapshot of Directus, used by Directus-Sync.

[boo-code]

Destination is completely empty and has no data at all. I should check something in source here where pull was made from?

[boo-code]

If destination database is empty, sync is working. If destination already contains tables (even empty from first sync), sync stops because of foreign key constraints.