attribute_method?

attribute_method?(attribute)
Instance Public methods

Returns true if attribute is an attribute method and table exists, false otherwise.

class Person < ActiveRecord::Base
end

Person.attribute_method?('name')   # => true
Person.attribute_method?(:age=)    # => true
Person.attribute_method?(:nothing) # => false
doc_ruby_on_rails
2015-06-20 00:00:00
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