Attributes
| association_dependencies | [R] |
A hash specifying the association dependencies for each model. The keys are symbols indicating the type of action and when it should be executed (e.g. :before_delete). Values are an array of method symbols. For before_nullify, the symbols are remove_all_association methods. For other types, the symbols are association_dataset methods, on which delete or destroy is called. |
Public Instance methods
add_association_dependencies(hash)
Add association dependencies to this model. The hash should have association name symbol keys and dependency action symbol values (e.g. albums: :destroy).
[show source]
# File lib/sequel/plugins/association_dependencies.rb 54 def add_association_dependencies(hash) 55 hash.each do |association, action| 56 raise(Error, "Nonexistent association: #{association}") unless r = association_reflection(association) 57 type = r[:type] 58 raise(Error, "Invalid dependence action type: association: #{association}, dependence action: #{action}") unless DEPENDENCE_ACTIONS.include?(action) 59 raise(Error, "Invalid association type: association: #{association}, type: #{type}") unless time = ASSOCIATION_MAPPING[type] 60 association_dependencies[:"#{time}_#{action}"] << if action == :nullify 61 case type 62 when :one_to_many , :many_to_many 63 [r[:remove_all_method]] 64 when :one_to_one 65 [r[:setter_method], nil] 66 else 67 raise(Error, "Can't nullify many_to_one associated objects: association: #{association}") 68 end 69 else 70 raise(Error, "Can only nullify many_to_many associations: association: #{association}") if type == :many_to_many 71 r[:dataset_method] 72 end 73 end 74 end
freeze()
Freeze association dependencies when freezing model class.
[show source]
# File lib/sequel/plugins/association_dependencies.rb 77 def freeze 78 @association_dependencies.freeze.each_value(&:freeze) 79 80 super 81 end