Module: Dynamoid::Dirty

Extended by:

ActiveSupport::Concern

Includes:

ActiveModel::Dirty

Included in:

Components

Defined in:

lib/dynamoid/dirty.rb

Defined Under Namespace

Modules: ClassMethods

Instance Method Summary (collapse)

• - (Object) clear_changes
• - (Object) reload
• - (Object) save
• - (Object) update!
• - (Object) write_attribute(name, value)

26
27
28
29
30
31
32
33
34

# File 'lib/dynamoid/dirty.rb', line 26

def clear_changes
  previous = changes
  (block_given? ? yield : true).tap do |result|
    unless result == false #failed validation; nil is OK.
      @previously_changed = previous
      changed_attributes.clear
    end
  end
end

22
23
24

# File 'lib/dynamoid/dirty.rb', line 22

def reload
  super.tap { clear_changes }
end

12
13
14

# File 'lib/dynamoid/dirty.rb', line 12

def save(*)
  clear_changes { super }
end

16
17
18
19
20

# File 'lib/dynamoid/dirty.rb', line 16

def update!(*)
  ret = super
  clear_changes #update! completely reloads all fields on the class, so any extant changes are wiped out
  ret
end

36
37
38
39

# File 'lib/dynamoid/dirty.rb', line 36

def write_attribute(name, value)
  attribute_will_change!(name) unless self.read_attribute(name) == value
  super
end