CODEWITHSUNDEEP
ruby-on-rails
Teresa
Teresa

Reputation: 373

In rails, does "if @user.save" actually save the object, or is it just a check?

Newbie question! In many controller methods, I see something like

@user.doSomething
if @user.save
  #flash or redirect something
else 
  #flash or redirect something

In this case, is it checking whether the object has been saved, or does this save the object, then checks whether it worked?

Upvotes: 0

Views: 1025

Answers (2)

Kris
Kris

Reputation: 19948

You can also do something like:

def edit
  @user = User.find(params[:id])
  @user.assign_attributes(params[:user])

  if @user.valid?
    @user.save!
    redirect
  else
    render
  end
end

This will save the user if it is valid, but if it cannot be saved due to some other reason an exception is raised.

Upvotes: 1

Deepak Mahakale
Deepak Mahakale

Reputation: 23671

if @user.save

This will save the object if it's valid and return

  • true if the @user is saved successfully
  • false if the @user is not saved

See the example below

@user = User.new

@user.save
#=> false

@user = User.new(email: '[email protected]', password: 'foobar123')

@user.save
#=> true

Upvotes: 2

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