How can i make ruby on rails handle duplicate record errors from MySQL
begin Event.create!(:name => 'Ironman Lanzarote 2011')rescue ActiveRecord::RecordNotUnique => e # handle duplicate entry endThis works for me under Rails 3.
You can add a uniqueness constraint to your model so that the record returns with errors and is invalid.
For example (Rails 2):
class User < ActiveRecord::Base validates_uniqueness_of :email, :scope => [:name, :age]endor (Rails 3)
class User < ActiveRecord::Base validates :email, :uniqueness => {:scope => [:name, :age]}endThis should result in the following:
user1 = User.create :email => "one@example.com", :name => "one", :age => 20user2 = User.create :email => "one@example.com", :name => "one", :age => 20user2.valid? # false
Can you change the query to
INSERT IGNORE INTO `entries` ...Alternatively, you could consider INSERT... ON DUPLICATE KEY UPDATE....
The INSERT Documentation is here.