Module: GuardAgainstPhysicalDelete::SupportCounterCache::Associations

Defined in:
lib/guard_against_physical_delete/support_counter_cache/3.0.10/associations.rb,
lib/guard_against_physical_delete/support_counter_cache/associations/builder/belongs_to.rb,
lib/guard_against_physical_delete/support_counter_cache/3.2_and_4.0/associations/builder/belongs_to.rb

Defined Under Namespace

Modules: Builder

Class Method Summary collapse

Class Method Details

.included(obj) ⇒ Object 



4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
 
# File 'lib/guard_against_physical_delete/support_counter_cache/3.0.10/associations.rb', line 4

def self.included(obj)
  class << obj
    def add_counter_cache_callbacks_with_logical_delete(reflection)
      add_counter_cache_callbacks_without_logical_delete(reflection)
      return unless logical_delete?
      add_logical_delete_counter_cache_callback(reflection)
    end
    alias_method_chain :add_counter_cache_callbacks, :logical_delete

    def add_logical_delete_counter_cache_callback(reflection)
      cache_column = reflection.counter_cache_column

      logical_delete_method_name = "belongs_to_counter_cache_before_logical_delete_for_#{reflection.name}".to_sym
      define_method(logical_delete_method_name) do
        delete_column = self.logical_delete_column
        next unless send("#{delete_column}_changed?")
        next unless send("#{delete_column}_was").nil?
        association = send(reflection.name)
        association.class.decrement_counter(cache_column, association.id) unless association.nil?
      end

      revive_method_name = "belongs_to_counter_cache_before_revive_for_#{reflection.name}".to_sym
      define_method(revive_method_name) do
        delete_column = self.logical_delete_column
        next unless send("#{delete_column}_changed?")
        next if send("#{delete_column}_was").nil?
        next unless send(delete_column).nil?

        clear_association_cache
        association = send(reflection.name)
        association.class.increment_counter(cache_column, association.id) unless association.nil?
      end

      before_update(logical_delete_method_name, revive_method_name)
    end
  end
end