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# frozen_string_literal: true
class Eye < ActiveRecord::Base
attr_reader :after_create_callbacks_stack
attr_reader :after_update_callbacks_stack
attr_reader :after_save_callbacks_stack
attr_writer :override_iris_with_read_only_foreign_key_color
# Callbacks configured before the ones has_one sets up.
after_create :trace_after_create, if: :iris
after_update :trace_after_update, if: :iris
after_save :trace_after_save, if: :iris
has_one :iris
accepts_nested_attributes_for :iris
# Callbacks configured after the ones has_one sets up.
after_create :trace_after_create2, if: :iris
after_update :trace_after_update2, if: :iris
after_save :trace_after_save2, if: :iris
def trace_after_create
(@after_create_callbacks_stack ||= []) << !iris.persisted?
end
alias trace_after_create2 trace_after_create
def trace_after_update
(@after_update_callbacks_stack ||= []) << iris.has_changes_to_save?
end
alias trace_after_update2 trace_after_update
def trace_after_save
(@after_save_callbacks_stack ||= []) << iris.has_changes_to_save?
end
alias trace_after_save2 trace_after_save
has_one :iris_with_read_only_foreign_key, class_name: "IrisWithReadOnlyForeignKey", foreign_key: :eye_id
accepts_nested_attributes_for :iris_with_read_only_foreign_key
before_save :set_iris_with_read_only_foreign_key_color_to_blue, if: -> {
iris_with_read_only_foreign_key && @override_iris_with_read_only_foreign_key_color
}
def set_iris_with_read_only_foreign_key_color_to_blue
iris_with_read_only_foreign_key.color = "blue"
end
end
class Iris < ActiveRecord::Base
belongs_to :eye
end
class IrisWithReadOnlyForeignKey < Iris
attr_readonly :eye_id
end
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