Class: ActiveTouch::DefineTouch

Inherits:
Object
  • Object
show all
Defined in:
lib/active_touch/define_touch.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(klass, association, options) ⇒ DefineTouch

Returns a new instance of DefineTouch.



10
11
12
13
14
15
16
17
 
# File 'lib/active_touch/define_touch.rb', line 10

def initialize(klass, association, options)
  @klass = klass
  @association = association
  @options = default_options.merge(options)
  @before_commit_method = "touch_#{SecureRandom.uuid}"
  @after_commit_method = "touch_#{SecureRandom.uuid}"
  @before_destroy_method = "touch_#{SecureRandom.uuid}"
end

Class Method Details

.on(klass, association, options) ⇒ Object 



4
5
6
7
8
 
# File 'lib/active_touch/define_touch.rb', line 4

def self.on(klass, association, options)
  new(klass, association, options).define if ActiveRecord::Base.connection.data_source_exists?(klass.table_name)
rescue ActiveRecord::NoDatabaseError
  # do nothing
end

Instance Method Details

#add_active_record_callback(event, method, args = {}) ⇒ Object 



92
93
94
 
# File 'lib/active_touch/define_touch.rb', line 92

def add_active_record_callback(event, method, args = {})
  @klass.send(event) { send(method, args) }
end

#add_to_network ⇒ Object 



96
97
98
99
 
# File 'lib/active_touch/define_touch.rb', line 96

def add_to_network
  touched = @options[:class_name] || @association.to_s.camelize
  ActiveTouch.network.add_touch(@klass.to_s, touched, @options[:watch])
end

#default_options ⇒ Object 



101
102
103
104
105
106
107
108
109
110
111
 
# File 'lib/active_touch/define_touch.rb', line 101

def default_options
  {
      touch_in_transaction: ActiveTouch.configuration.touch_in_transaction,
      async: ActiveTouch.configuration.async,
      watch: @klass.column_names.map(&:to_sym) - ActiveTouch.configuration.ignored_attributes,
      after_touch: nil,
      if: Proc.new { true },
      unless: Proc.new { false },
      touch_updates: ActiveTouch.configuration.touch_updates
  }
end

#define ⇒ Object 



19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
 
# File 'lib/active_touch/define_touch.rb', line 19

def define
  if @options[:touch_in_transaction]
    define_before_commit_method
    add_active_record_callback(:before_commit, @before_commit_method)
  end

  if !@options[:touch_in_transaction] || !@options[:after_touch].nil?
    define_after_commit_method
    add_active_record_callback(:after_commit, @after_commit_method)
  end

  define_before_destroy
  add_active_record_callback(:before_destroy, @before_destroy_method, prepend: true)

  add_to_network
end

#define_after_commit_method ⇒ Object 



51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
 
# File 'lib/active_touch/define_touch.rb', line 51

def define_after_commit_method
  association = @association
  options = @options

  @klass.send :define_method, @after_commit_method do |*args|
    changed_attributes = self.previous_changes.keys.map(&:to_sym)
    watched_changes = (options[:watch] & changed_attributes)

    if watched_changes.any? && options[:if].call(self) && !options[:unless].call(self)
      Rails.logger.debug "Touch After Commit: #{self.class}(#{self.id}) => #{association} due to changes in #{watched_changes}"
      options = {
          after_touch: options[:after_touch].to_s,
          is_destroy: false,
          is_touched: options[:touch_in_transaction],
          touch_updates: options[:touch_updates]
      }

      if options[:async]
        TouchJob.set(queue: ActiveTouch.configuration.queue).perform_later(self, association.to_s, options)
      else
        TouchJob.perform_now(self, association.to_s, options)
      end

    end
  end
end

#define_before_commit_method ⇒ Object 



36
37
38
39
40
41
42
43
44
45
46
47
48
49
 
# File 'lib/active_touch/define_touch.rb', line 36

def define_before_commit_method
  association = @association
  options = @options

  @klass.send :define_method, @before_commit_method do |*args|
    changed_attributes = self.previous_changes.keys.map(&:to_sym)
    watched_changes = (options[:watch] & changed_attributes)

    if watched_changes.any? && options[:if].call(self) && !options[:unless].call(self)
      TouchJob.perform_now(self, association.to_s, touch_updates: options[:touch_updates])
      Rails.logger.debug "Touch Before Commit: #{self.class}(#{self.id}) => #{association} due to changes in #{watched_changes}"
    end
  end
end

#define_before_destroy ⇒ Object 



78
79
80
81
82
83
84
85
86
87
88
89
90
 
# File 'lib/active_touch/define_touch.rb', line 78

def define_before_destroy
  association = @association
  options = @options

  @klass.send :define_method, @before_destroy_method do |*args|
    Rails.logger.debug "Touch Before Destroy: #{self.class}(#{self.id}) => #{association} due to destroy"
    TouchJob.perform_now(self, association.to_s, {
        after_touch: options[:after_touch].to_s,
        is_destroy: true,
        touch_updates: options[:touch_updates]
    })
  end
end