Error

[rudy-on-rails]

Whenever you have an association with a name that doesn't match associated class name, act_as_a_list_mongoid will try to use the 'associated class pluralized and underscoralized name' when one of its methods is invoked, raising a "NoMethodError" exception.

Example:

class Commit
   include Mongoid::Document
   embeds_many :properties, class_name: 'CommitProperty'
end

class CommitProperty
   include Mongoid::Document
   include ActsAsList::Mongoid
   embedded_in :commit, class_name: 'Commit', inverse_of: :properties
end

Calling commit.init_list! will raise the error.

Workaround:

add an alias to match relation name. In above's case,

class Commit
   include Mongoid::Document
   embeds_many :properties, class_name: 'CommitProperty'
   alias :commit_properties :properties
end