instance method `update`

Ruby on Rails 3.1.12

Since v3.0.20 Private

Available in: v3.0.20 v3.1.12 v3.2.22.5 v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

update(attribute_names = @attributes.keys)

Updates the associated record with values matching those of the instance attributes. Returns the number of affected rows.

Parameters

attribute_names opt = @attributes.keys

Source

# File activerecord/lib/active_record/persistence.rb, line 300
    def update(attribute_names = @attributes.keys)
      attributes_with_values = arel_attributes_values(false, false, attribute_names)
      return 0 if attributes_with_values.empty?
      klass = self.class
      stmt = klass.unscoped.where(klass.arel_table[klass.primary_key].eq(id)).arel.compile_update(attributes_with_values)
      klass.connection.update stmt
    end

Defined in activerecord/lib/active_record/persistence.rb line 300 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveRecord::Persistence

Signature

Parameters