Parent

Object

Methods

DataMapper::Collection

Public Instance Methods

adjust(attributes = {}, reload = false) click to toggle source 
# File lib/dm-adjust/collection.rb, line 4
def adjust(attributes = {}, reload = false)
  raise NotImplementedError, 'adjust *with* validations has not be written yet, try adjust!'
end
adjust!(attributes = {}, reload = false) click to toggle source

increment or decrement attributes on a collection

@example [Usage]

* People.all.adjust(:salary => +1000)
* Children.all(:age.gte => 18).adjust(:allowance => -100)

@param attributes <Hash> A hash of attributes to adjust, and their adjustment @param reload <FalseClass,TrueClass> If true, affected objects will be reloaded

@api public

# File lib/dm-adjust/collection.rb, line 19
def adjust!(attributes = {}, reload = false)
  return true if attributes.empty?

  reload_conditions = if reload
    model_key = model.key(repository.name)
    Query.target_conditions(self, model_key, model_key)
  end

  adjust_attributes = adjust_attributes(attributes)
  repository.adjust(adjust_attributes, self)

  if reload_conditions
    @query.clear
    @query.update(:conditions => reload_conditions)
    self.reload
  end

  true
end

[Validate]

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