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

0 vote253 views1 answer
Blocked host: c25f383bd08f.ngrok.io
Ruby
0 vote240 views1 answer
Ruby join hash to string
Ruby
0 vote222 views1 answer
Ruby is method defined
Ruby
1 vote223 views1 answer
Ruby comments
Ruby
2 votes234 views1 answer
Array to hash to one hash
Ruby
0 vote302 views1 answer
Rails active storage get all attachment names
Ruby
4 votes278 views2 answers
Ruby merge array of hashes into one hash
Ruby
0 vote233 views1 answer
What is exclamation mark in ruby
Ruby
0 vote215 views1 answer
Ruby list all class methods
Ruby
0 vote210 views1 answer
Ruby raise to power
Ruby