Module: ActiveRecord::Validations

### Home Classes Methods

### In Files

- lib/active_record/validations.rb
- lib/active_record/validations/associated.rb
- lib/active_record/validations/uniqueness.rb

### Namespace

- MODULE ActiveRecord::Validations::ClassMethods
- CLASS ActiveRecord::Validations::AssociatedValidator
- CLASS ActiveRecord::Validations::UniquenessValidator

### Methods

- #perform_validations
- #save
- #save!
- #valid?

### Included Modules

- ActiveModel::Validations

### Files

- README.rdoc

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No matching classes.

# ActiveRecord::Validations

# Active Record Validations

Active Record includes the majority of its validations from `ActiveModel::Validations` all of which accept the `:on` argument to define the context where the validations are active. Active Record will always supply either the context of `:create` or `:update` dependent on whether the model is a `new_record?`.

### Public Instance Methods

save(options={}) click to toggle source

The validation process on save can be skipped by passing `:validate => false`. The regular Base#save method is replaced with this when the validations module is mixed in, which it is by default.

    # File lib/active_record/validations.rb, line 49
    def save(options={})
      perform_validations(options) ? super : false
    end

save!(options={}) click to toggle source

Attempts to save the record just like Base#save but will raise a `RecordInvalid` exception instead of returning false if the record is not valid.

    # File lib/active_record/validations.rb, line 55
    def save!(options={})
      perform_validations(options) ? super : raise(RecordInvalid.new(self))
    end

valid?(context = nil) click to toggle source

Runs all the validations within the specified context. Returns true if no errors are found, false otherwise.

If the argument is false (default is `nil`), the context is set to `:create` if `new_record?` is true, and to `:update` if it is not.

Validations with no `:on` option will run no matter the context. Validations with some `:on` option will only run in the specified context.

    # File lib/active_record/validations.rb, line 67
    def valid?(context = nil)
      context ||= (new_record? ? :create : :update)
      output = super(context)
      errors.empty? && output
    end

### Protected Instance Methods

perform_validations(options={}) click to toggle source

    # File lib/active_record/validations.rb, line 75
    def perform_validations(options={})
      perform_validation = options[:validate] != false
      perform_validation ? valid?(options[:context]) : true
    end

[Validate]

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