Feature: Support models with specific table_name during migration generation

[buntine]

Context

In our app we have all models namespaced via sub-domain. The current Hoardable generator assumes the table name by doing some string manipulation on the passed in model.

So, in our case (using a fictional example):

bin/rails g hoardable:migration Domain::SubDomain::ModelName  # --> assumes domain_subdomain_model_names table

This causes the migration to die when we run it. If we pass in the explicit table name instead of the model, the migration still dies because it cannot resolve back to the model when it tries to work out the primary key type (we use uuid).

It's perhaps nicer to actually consult the model itself to work out what the correct table name is. That's what this PR does.

Happy to discuss it further if you have some other ideas!

[waymondo]

thanks again. i agree it would be best to try and consult the model's table_name first.

regarding the implementation, i think using constantize is fine in this case and falling back to super on any StandardError is simple and fine with me.