method
column_for_attribute
v4.2.9 -
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Class: ActiveRecord::AttributeMethods::ClassMethods
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- What's this?
column_for_attribute(name)
public
Returns the column object for the named attribute. Returns nil if the named attribute does not exist.
class Person < ActiveRecord::Base end person = Person.new person.column_for_attribute(:name) # the result depends on the ConnectionAdapter # => #<ActiveRecord::ConnectionAdapters::Column:0x007ff4ab083980 @name="name", @sql_type="varchar(255)", @null=true, ...> person.column_for_attribute(:nothing) # => nil