Module: Lore::Behaviours::Movable

Defined in:
lib/lore/behaviours/movable.rb

Instance Method Summary collapse

Instance Method Details

#move(inst, sortpos, criteria) ⇒ Object 



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# File 'lib/lore/behaviours/movable.rb', line 12

def move(inst, sortpos, criteria)

  sortpos = sortpos.to_i
  return if sortpos < 1
  
  sortpos_old = inst.attr[@order_attr_name].to_i

  # move down: 
  if sortpos.to_i > sortpos_old then
    
    self.update { |na|
      na.set({@order_attr_name => @order_attr-1}).where(
        (criteria) &
        (@order_attr <= sortpos) &
        (@order_attr > sortpos_old)
      )
    }

  elsif sortpos.to_i < sortpos_old then
    
    self.update { |na|
      na.set({@order_attr_name => @order_attr+1}).where(
        (criteria) &
        (@order_attr >= sortpos) &
        (@order_attr < sortpos_old)
      )
    }
    
  end

  if sortpos != sortpos_old then
    
    inst.set_attribute_value(@order_attr_name, sortpos)
    inst.commit()

  end

end

#ordered_by(attr) ⇒ Object 



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# File 'lib/lore/behaviours/movable.rb', line 7

def ordered_by(attr)
  @order_attr = attr
  @order_attr_name = attr.to_s.split('.')[-1].intern
end