Flowdock
method

validates_absence_of

Importance_1
v5.2.3 - Show latest stable - 0 notes - Class: ActiveRecord::Validations::ClassMethods
validates_absence_of(*attr_names) public

Validates that the specified attributes are not present (as defined by Object#present?). If the attribute is an association, the associated object is considered absent if it was marked for destruction.

See ActiveModel::Validations::HelperMethods.validates_absence_of for more information.

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