instance method `update_column`

Ruby on Rails 3.2.22.5

Since v3.1.12

Available in: 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_column(name, value)

Updates a single attribute of an object, without calling save.

Validation is skipped.
Callbacks are skipped.
updated_at/updated_on column is not updated if that column is available.

Raises an ActiveRecordError when called on new objects, or when the name attribute is marked as readonly.

Parameters

name req
value req

Source

# File activerecord/lib/active_record/persistence.rb, line 192
    def update_column(name, value)
      name = name.to_s
      raise ActiveRecordError, "#{name} is marked as readonly" if self.class.readonly_attributes.include?(name)
      raise ActiveRecordError, "can not update on a new record object" unless persisted?

      updated_count = self.class.unscoped.update_all({ name => value }, self.class.primary_key => id)

      raw_write_attribute(name, value)

      updated_count == 1
    end

Defined in activerecord/lib/active_record/persistence.rb line 192 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveRecord::Persistence

Signature

Parameters