validate() protected

Overwrite this method for validation checks on all saves and use Errors.add(field, msg) for invalid attributes.

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June 25, 2009 - (>= v2.3.2)
1 thank

Validate() is run always before one of the more specific validation methods

I did not see this mentioned explicitly anywhere.

The method validate is run always before a call to validate_on_create or validate_on_update is made.

Example: 

  class Foo < ActiveRecord::Base
    def validate
      puts 'In validate'
    end

    def validate_on_create
      puts 'In validate_on_create'
    end

    def validate_on_update
      puts 'In validate_on_update'
    end
  end

Now, when creating a new Foo using script/console, the output is as follows: 

  In validate
  In validate_on_create

and when updating a Foo, the output looks like: 

  In validate
  In validate_on_update