skip ForeignKeyChecker for rails 6+ multiple databases setup

[uxxman]

ForeignKeyChecker should ignore when the underlying association tables belong to different databases, since a foreign key cannot be defined here.

production:
  primary:
    database: my_primary_database
  animals:
    database: my_animals_database
    migrations_paths: db/animals_migrate

class User < ApplicationRecord
  has_many :dogs
end

class AnimalsRecord < ApplicationRecord
  self.abstract_class = true
  connects_to database: { writing: :animals, reading: :animals }
end

class Dog < AnimalsRecord
  belongs_to :user
end

ForeignKeyChecker fail Dog User should have foreign key in the database

[djezzzl]

Hello @uxxman , thank you for sharing this!

Would you like to contribute and provide a fix?

[uxxman]

hey @djezzzl, i took a stab at it here #116

[uxxman]

fixed in #116 . Closing