Create new records on before_save.

Question

While creating new records. I need to create more records for the same model.

Example ::

class XYZ < ActiveRecord
 def before_save
   # At this point object is already initialized ..
   # And it's containing values.
   # At this point i want to create 10 more records for the same class.
   # something like this
   XYZ.new(:att1 => value1,:att2 => value2,:att3 => self.att1)
 end
end

How may i handle this type of scenario ? On which call back i have to create more records for the same model ?

Answer 1

class XYZ < ActiveRecord
 def after_initialize
   # At this point object is already initialized ..
   # And it's containing values.
   # At this point i want to create 10 moew records for the same class.
   # something like this
   #XYZ.new(:att1 => value1,:att2 => value2,:att3 => self.att1)
   x = 10 #an integer
   x.times do |task|
     Model.create(:key => :value)
   end
  end
end

Answer 2

First, this sounds like bad engineering, try to rethink your model in a way that makes what you need. maybe if you need to create 10 models of something, do not use the activerecord hooks, otherwise you might incur in infine loops.

I would recommend

class XYZ < ActiveRecord
 def self.create10(original_xyz)
   10.times do
     clone = original_xyz.clone
     clone.save
   end
 end
end

and where in your controller or wherever you have the need to create 10 more, call:

new_xyz = XYZ.new(:att1 => value1,:att2 => value2,:att3 => self.att1)
new_xyz.save
XYZ.create10(new_xyz)

but if you really need to create 10 more on a hook (like before save), do:

class XYZ < ActiveRecord

 before_save create10

 attr_acessor :cloned 

 def create10
   return if cloned # this will prevent infinit loooooooooooooooop
   10.times do
     clone = self.clone
     clone.cloned = true
     clone.save
   end
 end

end

I did not run this, so, try it first.