Module: HasManyWithSet::Relationships

Defined in:
lib/has-many-with-set/relationships.rb

Class Method Summary collapse

Class Method Details

.create_set_model(set_model_name) ⇒ Object 



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# File 'lib/has-many-with-set/relationships.rb', line 3

def self.create_set_model(set_model_name)
  Object.const_set(set_model_name, Class.new(ApplicationRecord)) unless
    Object.const_defined?(set_model_name) # this *should* never happen...
end

.relate_child_to_set(set_model_name, child_model_name) ⇒ Object 



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# File 'lib/has-many-with-set/relationships.rb', line 8

def self.relate_child_to_set(set_model_name, child_model_name)
  # Take the child model and add a regular many-to-many relationship to the Set model...
  Object.const_get(child_model_name).class_eval do
    has_and_belongs_to_many set_model_name.tableize.to_sym, :join_table => "#{ set_model_name.tableize }_#{ child_model_name.tableize }"
  end

  # ... and take the Set model and finish the many-to-many relationship.
  Object.const_get(set_model_name).class_eval do
    has_and_belongs_to_many child_model_name.tableize.to_sym, :join_table => "#{ set_model_name.tableize }_#{ child_model_name.tableize }"
  end
end

.relate_parent_to_set(set_model_name, parent_model_name) ⇒ Object 



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# File 'lib/has-many-with-set/relationships.rb', line 20

def self.relate_parent_to_set(set_model_name, parent_model_name)
  # The parent object has a FK to the Set table, so it belongs_to it.
  Object.const_get(parent_model_name).class_eval do
    belongs_to set_model_name.tableize.singularize.to_sym, optional: true
  end
end