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

Similar codes

1 vote226 views1 answer
Fibonacci sums ruby
Ruby
0 vote214 views1 answer
ActionController::InvalidAuthenticityToken rails when submitting form
Ruby
0 vote233 views1 answer
Or even multiple scope parameters. For example, making sure that a teacher can only be on the schedule once per semester for a particular class.
Ruby
1 vote237 views1 answer
Activerecord list tables
Ruby
0 vote217 views1 answer
Ruby find method
Ruby
0 vote258 views1 answer
How to display the has_many in the api serializer rails
Ruby
1 vote181 views1 answer
Lewagon rails template
Ruby
0 vote240 views1 answer
Ruby deep merge
Ruby
0 vote230 views1 answer
Rspec create list
Ruby
0 vote226 views1 answer
Rails api render show page with id
Ruby