column_for_attribute

column_for_attribute(name)

Instance Public methods

Returns the column object for the named attribute. Returns nil if the named attribute not exists.

class Person < ActiveRecord::Base
end

person = Person.new
person.column_for_attribute(:name) # the result depends on the ConnectionAdapter
# => #<ActiveRecord::ConnectionAdapters::SQLite3Column:0x007ff4ab083980 @name="name", @sql_type="varchar(255)", @null=true, ...>

person.column_for_attribute(:nothing)
# => nil

Links:

https://github.com/rails/rails/blob/1d6d72ac7be9512041bfd1dfb928f242ede5c061/activerecord/lib/active_record/attribute_methods.rb#L360

doc_ruby_on_rails

2015-06-20 00:00:00

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