https://github.com/solnic/dm-validations-ext

Various additions to the dm-validations API
https://github.com/solnic/dm-validations-ext

Last synced: 12 months ago
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Various additions to the dm-validations API

• Host: GitHub
• URL: https://github.com/solnic/dm-validations-ext
• Owner: solnic
• License: mit
• Created: 2010-09-09T16:30:16.000Z (almost 16 years ago)
• Default Branch: master
• Last Pushed: 2011-03-19T12:48:25.000Z (about 15 years ago)
• Last Synced: 2025-05-31T22:57:21.590Z (about 1 year ago)
• Language: Ruby
• Homepage:
• Size: 101 KB
• Stars: 11
• Watchers: 2
• Forks: 5
• Open Issues: 1
• Metadata Files:
  • Readme: README.rdoc
  • License: LICENSE

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README

          
= dm-validations-ext

DataMapper plugin providing access to validation errors of associated parent and children objects. See the example below to get an idea on how it works.

= Example

  DataMapper.setup :default, "sqlite::memory"

  class User

    include DataMapper::Resource

    property :id, Serial

    property :name, String

    belongs_to :group

    has n, :roles

  end

  class Group

    include DataMapper::Resource

    property :id, Serial

    property :name, String, :length => 10..255

    has n, :users

  end

  class Role

    include DataMapper::Resource

    property :id, Serial

    property :name, String, :length => 4..10

    belongs_to :user

  end

  DataMapper.finalize

  DataMapper.auto_migrate!

  user  = User.new(:name => "John")

  group = Group.new(:name => "Too Short")

  role  = Role.new(:name => "Way Too Long")

  user.group = group

  user.roles << role

  user.save

  # => false

  user.errors[:group].inspect

  # => , @errors={:name=>["Name must be between 10 and 255 characters long"]}>

  user.errors[:roles].inspect

  # => [#, @errors={:name=>["Name must be between 4 and 10 characters long"], :user_id=>["User must not be blank"]}>]