Development workflow. Data merging DB, within one table?

Question

MySQL

The Symfony project The
backend is a kind of constructor
. Apart from writing the code, the developer does the lion's share of the work in the constructor, the results of which are stored in one database table
. But how to exchange changes in the database among themselves?
how to build an effective development chain
I know such a tool as migrations - but when the developer works in the constructor - the designer modifies a lot of things in the database (but fortunately only in one table) and writing such sql by hand to add all these changes to the migration is problematic