Commands

To create the schemas:
vendor/bin/doctrine orm:schema-tool:create
To delete the schemas:
vendor/bin/doctrine orm:schema-tool:drop --force
To update all schemas:
vendor/bin/doctrine orm:schema-tool:update --force --dump-sql

Persist / Flush ?

We use persist method to tell to the orm that we want to insert a new data to the database, but it doesn't immediatly insert the data. We need to call flush to persist all the datas that we passed to the previous persist method

Update composer autoload

composer dump-autoload -o

Relations

In a many-to-many relation, both sides can be the owning side of the relation. However, in a bi-directional many-to-many relation, only one side is allowed to be the owning side.

• The "owning side" has to use the inversedBy.
• The "inverse side" has to use the mappedBy.