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

4 votes302 views1 answer
Ruby read file
Ruby
0 vote210 views2 answers
Rails faker
Ruby
0 vote218 views1 answer
Httparty headers
Ruby
0 vote226 views1 answer
Add key and value to the beginning of a hash ruby
Ruby
0 vote219 views1 answer
Formatting a floating point number in ruby
Ruby
0 vote232 views1 answer
How to delete database in rails
Ruby
8 votes449 views3 answers
Ruby each with index
Ruby
0 vote225 views3 answers
Invalid authenticity token rails
Ruby
0 vote224 views1 answer
Ruby string trmi
Ruby
0 vote215 views1 answer
Timeout in rails
Ruby