Rails validate uniqueness

Rails validators

validates :name, length: { minimum: 2 } # or { maximum: 500 } or { in: 6..20 } or { is: 6 } 
validates :name, :login, :email, presence: true
validates :email, uniqueness: true
validates :switch, inclusion: { in: [true, false]  }
validates :terms_of_service, acceptance: true
validates :size, inclusion: { in: %w(small medium large), message: "%{value} is not a valid size" }
validates :legacy_code, format: { with: /\A[a-zA-Z]+\z/, message: "only allows letters" }

Source: guides.rubyonrails.org

Rails validate uniqueness

validates :email, uniqueness: true

Similar codes

1 vote137 views1 answer
Devise redirectt after sign up
Ruby
1 vote130 views1 answer
Rails controller generator
Ruby
0 vote145 views1 answer
How to find even number in an array ruby
Ruby
0 vote159 views1 answer
Rails form_tag
Ruby
0 vote157 views1 answer
How do I update an index in rails
Ruby
0 vote166 views1 answer
Rbenv not changing version
Ruby
2 votes137 views1 answer
Ruby reorder keys in hash
Ruby
0 vote226 views1 answer
Include? reverse ruby
Ruby
9 votes128 views3 answers
Ruby replace words in a string
Ruby
0 vote142 views1 answer
Rails string to html
Ruby