Hi friends,
We already talked about different kinds of validations. Today lets discuss one of the common type of validation that is Strict validation. By using this we can check whether an object is valid or not and can raise ActiveModel::StrictValidationFailed or can pass custom exception of our choice. Lets see an example:

Default Exception:

class Blog < ActiveRecord::Base
  validates :title, presence: { strict: true }
end

Blog.new.valid?  # => ActiveModel::StrictValidationFailed: Title can't be blank

Customized Exception:

class Blog < ActiveRecord::Base
  validates :title, presence: true, uniqueness: true, strict: TitleNotFoundException
end

Blog.new.valid?  # => ActiveModel::TitleNotFoundException: Title can't be blank

Hope you liked this blog too. For other kind of validations check:

• Format Validators in Rails
• Numeric validator in Rails
• Length validator in Rails
• Unique validators in Rails