Problems with inverse

[tillsc]

The automatic detection of inverse relationships seems a little error-prone to me. It heavily depends upon the usage of symbols in :child_key Options. Example:

class A
  belongs_to :b
end

class B
  has n, :as, :child_key => 'b_id'
end

In this case the inverse would be generated (ignoring the existing one) because of :child_key being a String.

The Bug is located here:

dm-core/lib/dm-core/associations/relationship.rb

Line 642 in c8f87d9

self_key.send(operator, other_key)

 ["b_id"].send(:==, [:b_id]) # => false

This problem prevents the specification of DB constraints other then :protect (the default for automatically generated inverse relationships) when using Strings instead of Symbols in :child_key options.