Module: DeepDirty

Defined in:
lib/deep_dirty.rb,
lib/deep_dirty/version.rb

Constant Summary collapse

VERSION = 
"1.0.2"

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/deep_dirty.rb', line 4

def self.included(base)
  base.class_eval do
    before_validation :deep_dirty_check
  end
end

Instance Method Details

#deep_changed? ⇒ Boolean

apply deep dirty check and then return ‘changed?`

Returns:

  • (Boolean) 


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# File 'lib/deep_dirty.rb', line 11

def deep_changed?
  deep_dirty_check
  changed?
end

#deep_dirty_check ⇒ Object

Compare each attribute to it’s value before type cast and mark changes where detected



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# File 'lib/deep_dirty.rb', line 17

def deep_dirty_check
  self.attributes.keys.each do |attr|
    next if attribute_changed?(attr)
    col = column_for_attribute(attr)
    uncast_value = read_attribute_before_type_cast(attr)
    recast_value = col.type_cast(uncast_value)
    unless recast_value == read_attribute(attr)
      changed_attributes[attr] = recast_value
    end
  end
  # This should never break validation
  true
end