is_unique | ActiveRecord extension to prevent duplicate records | Application Framework library

is_unique is a Ruby library typically used in Server, Application Framework applications. is_unique has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

This is a simple ActiveRecord extension that makes sure that no duplicate records are added to the database. When you create a new model instance that already exists, it won’t create a new record, but will return the existing one instead. The extension generates a hash off the model attributes and use it to check for existing records. Of course, it ignores primary key, created_at, updated_at and other columns that you ask it to. Here’s an example. Say you have a Location model and you want all your locations to be unique. When you add a new location you’d like to check whether it already exists and if it does, you don’t want to create a new record. $ ./script/generate model Location name:string lat:float lng:float alias:string.