instance method
increment
Ruby on Rails 2.3.18
Last seen in v2.3.18Available in: v2.2.3 v2.3.18
Signature
increment(attribute, by = 1)Initializes attribute to zero if nil and adds the value passed as by (default is 1). The increment is performed directly on the underlying attribute, no setter is invoked. Only makes sense for number-based attributes. Returns self.
Parameters
-
attributereq -
byopt = 1
Source
# File activerecord/lib/active_record/base.rb, line 2696
def increment(attribute, by = 1)
self[attribute] ||= 0
self[attribute] += by
self
end
Defined in activerecord/lib/active_record/base.rb line 2696
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Defined in ActiveRecord::Base