method

exists?

v2.2.1 - Show latest stable - 0 notes - Class: ActiveResource::Base

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What's this?

exists?() public

Evaluates to true if this resource is not new? and is found on the remote service. Using this method, you can check for resources that may have been deleted between the object’s instantiation and actions on it.

Examples

  Person.create(:name => 'Theodore Roosevelt')
  that_guy = Person.find(:first)
  that_guy.exists? # => true

  that_lady = Person.new(:name => 'Paul Bean')
  that_lady.exists? # => false

  guys_id = that_guy.id
  Person.delete(guys_id)
  that_guy.exists? # => false

Show source

# File activeresource/lib/active_resource/base.rb, line 829
    def exists?
      !new? && self.class.exists?(to_param, :params => prefix_options)
    end

exists?

Related methods

Examples