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-rw-r--r--activemodel/lib/active_model/validations.rb33
1 files changed, 33 insertions, 0 deletions
diff --git a/activemodel/lib/active_model/validations.rb b/activemodel/lib/active_model/validations.rb
index 6a2668b8f7..176d4c0607 100644
--- a/activemodel/lib/active_model/validations.rb
+++ b/activemodel/lib/active_model/validations.rb
@@ -371,6 +371,15 @@ module ActiveModel
!valid?(context)
end
+ # Runs all the validations within the specified context. Returns +true+ if
+ # no errors are found, raises +ValidationError+ otherwise.
+ #
+ # Validations with no <tt>:on</tt> option will run no matter the context. Validations with
+ # some <tt>:on</tt> option will only run in the specified context.
+ def validate!(context = nil)
+ valid?(context) || raise_validation_error
+ end
+
# Hook method defining how an attribute value should be retrieved. By default
# this is assumed to be an instance named after the attribute. Override this
# method in subclasses should you need to retrieve the value for a given
@@ -395,6 +404,30 @@ module ActiveModel
_run_validate_callbacks
errors.empty?
end
+
+ def raise_validation_error
+ raise(ValidationError.new(self))
+ end
+ end
+
+ # = Active Model ValidationError
+ #
+ # Raised by <tt>validate!</tt> when the model is invalid. Use the
+ # +model+ method to retrieve the record which did not validate.
+ #
+ # begin
+ # complex_operation_that_internally_calls_validate!
+ # rescue ActiveModel::ValidationError => invalid
+ # puts invalid.model.errors
+ # end
+ class ValidationError < StandardError
+ attr_reader :model
+
+ def initialize(model)
+ @model = model
+ errors = @model.errors.full_messages.join(", ")
+ super(I18n.t(:"#{@model.class.i18n_scope}.errors.messages.model_invalid", errors: errors, default: :"errors.messages.model_invalid"))
+ end
end
end