Unlock ReadOnly Model Object

Phasing some interesting problem after creating record for model which has HasMany relationship.

I have class say 'Category' & 'CategoryOptions'.

Category Has Many CategoryOptions

When i create record for CategoryOption using below syntax it locks the newly created object.

category = Category.first

category_option = category.category_options.create(params[:category_option])

If i do 

category_option.readonly?

=> true

Now i'm trying to update category_option using

category_option.update_attributes(params[:category_option])

but it raises Exception like 

ActiveRecord::ReadOnlyRecord

To remove readonly lock from object use below method

category_option.send(:instance_variable_set, :@readonly, false)

Now try

category_option.readonly?

=> false

category_option.update_attributes(params[:category_option]) works perfectly.

Hope this article will help you to remove Readonly lock from Model Object.

How to invoke method in ruby?

Guys,

         Do you aware about the method invocation in ruby using different ways?

 want to know? There are 3 different ways to invoke a method in ruby.

a) Using period operator

    eg. we have class called 'Car' and we need to access the method called 'car_detail'

    car = Car.new

    car.car_detail

b) Using .send method

    car = Car.new

    car.send(:car_detail)

c) Using .call method

    car = Car.new

    car.method(:car_detail).call

So, these are the three ways to invoke method in ruby.  Hope this post will help you.