Class: ActiveData::Model::Associations::ReferencesMany

Inherits:
Base
  • Object
show all
Defined in:
lib/active_data/model/associations/references_many.rb

Instance Attribute Summary

Attributes inherited from Base

#owner, #reflection

Instance Method Summary collapse

Methods inherited from Base

#apply_changes!, #evar_loaded?, #initialize, #inspect, #loaded!, #loaded?, #reload, #reset, #target, #transaction

Constructor Details

This class inherits a constructor from ActiveData::Model::Associations::Base

Instance Method Details

#apply_changes ⇒ Object 



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# File 'lib/active_data/model/associations/references_many.rb', line 5

def apply_changes
  present_keys = target.reject { |t| t.marked_for_destruction? }.map(&reflection.primary_key).compact
  write_source(present_keys)
  true
end

#clear ⇒ Object 



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# File 'lib/active_data/model/associations/references_many.rb', line 61

def clear
  attribute.pollute do
    write_source([])
  end
  reload.empty?
end

#concat(*objects) ⇒ Object 



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# File 'lib/active_data/model/associations/references_many.rb', line 56

def concat(*objects)
  append objects.flatten
  reader
end

#default ⇒ Object 



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# File 'lib/active_data/model/associations/references_many.rb', line 21

def default
  unless evar_loaded?
    default = Array.wrap(reflection.default(owner))
    if default.all? { |object| object.is_a?(reflection.klass) }
      default
    elsif default.all? { |object| object.is_a?(Hash) }
      default.map { |attributes| reflection.klass.new(attributes) }
    else
      scope(default).to_a
    end if default.present?
  end || []
end

#identify ⇒ Object 



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# File 'lib/active_data/model/associations/references_many.rb', line 72

def identify
  target.map(&reflection.primary_key)
end

#load_target ⇒ Object 



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# File 'lib/active_data/model/associations/references_many.rb', line 16

def load_target
  source = read_source
  source.present? ? scope(source).to_a : default
end

#read_source ⇒ Object 



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# File 'lib/active_data/model/associations/references_many.rb', line 34

def read_source
  attribute.read_before_type_cast
end

#reader(force_reload = false) ⇒ Object 



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# File 'lib/active_data/model/associations/references_many.rb', line 42

def reader force_reload = false
  reload if force_reload
  @proxy ||= Collection::Referenced.new self
end

#replace(objects) ⇒ Object Also known as: writer 



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# File 'lib/active_data/model/associations/references_many.rb', line 47

def replace objects
  loaded!
  transaction do
    clear
    append objects
  end
end

#scope(source = read_source) ⇒ Object 



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# File 'lib/active_data/model/associations/references_many.rb', line 68

def scope source = read_source
  reflection.scope.where(reflection.primary_key => source)
end

#target=(object) ⇒ Object 



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# File 'lib/active_data/model/associations/references_many.rb', line 11

def target= object
  loaded!
  @target = object.to_a
end

#write_source(value) ⇒ Object 



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# File 'lib/active_data/model/associations/references_many.rb', line 38

def write_source value
  attribute.write_value value
end