/ Ruby on Rails
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method

validate

rails latest stable - Class: ActiveRecord::Validations
validate(context = nil)
public

Alias for ActiveRecord::Validations#valid?

1Note

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

jlamberg ยท Jun 25, 20091 thank

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