Module: SkuGenerator::ClassMethods

Defined in:
lib/sku_generator.rb

Instance Method Summary collapse

Instance Method Details

#sku_generator(column_name, options) ⇒ Object

column_name : Name of the sku column options :

parents : array of parent relation, if you want to include
sku_initial : specify, any SKU intials if you want, otherwise, it will take first 4 letters from the class name.
padding : 0 padding on the model id; default is 6
parent_padding : 0 padding on the parent model's ids; default is 3



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# File 'lib/sku_generator.rb', line 14

def sku_generator column_name, options

  self.after_save :generate_sku

  define_method 'generate_sku' do
    sku_initial = (options.delete(:sku_initial) or self.class.to_s[0..3].upcase)
    relational_parents = (options.delete(:parents) or [])
    padding = (options.delete(:padding) or 6)
    parent_padding = (options.delete(:parent_padding) or 3)
    sku_parent_component = relational_parents.map { |parent| self.send(parent).id.to_s.rjust(parent_padding, '0') }.join('')
    sku_sef_component = self.id.to_s.rjust(padding, '0')
    sku = sku_initial + sku_parent_component + sku_sef_component
    self.update_column column_name, sku
  end

end