Reordered classes in AR Validation #validates_with example [ci skip]
Person called GoodnessValidator before it was defined. This change will compile the example correctly.
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@ -616,10 +616,6 @@ The default error message is _"has already been taken"_.
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This helper passes the record to a separate class for validation.
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```ruby
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class Person < ActiveRecord::Base
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validates_with GoodnessValidator
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end
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class GoodnessValidator < ActiveModel::Validator
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def validate(record)
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if record.first_name == "Evil"
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@ -627,6 +623,10 @@ class GoodnessValidator < ActiveModel::Validator
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end
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end
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end
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class Person < ActiveRecord::Base
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validates_with GoodnessValidator
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end
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```
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NOTE: Errors added to `record.errors[:base]` relate to the state of the record
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@ -644,10 +644,6 @@ Like all other validations, `validates_with` takes the `:if`, `:unless` and
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validator class as `options`:
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```ruby
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class Person < ActiveRecord::Base
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validates_with GoodnessValidator, fields: [:first_name, :last_name]
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end
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class GoodnessValidator < ActiveModel::Validator
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def validate(record)
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if options[:fields].any?{|field| record.send(field) == "Evil" }
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@ -655,6 +651,10 @@ class GoodnessValidator < ActiveModel::Validator
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end
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end
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end
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class Person < ActiveRecord::Base
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validates_with GoodnessValidator, fields: [:first_name, :last_name]
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end
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```
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Note that the validator will be initialized *only once* for the whole application
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