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Add doc to #attribute_names

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Sebastian Martinez 2011-05-15 21:33:49 -03:00
parent d043d65396
commit 2470392e89
1 changed files with 3 additions and 0 deletions
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3
activerecord/lib/active_record/base.rb
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@ -767,6 +767,9 @@ module ActiveRecord #:nodoc:
super || (table_exists? && column_names.include?(attribute.to_s.sub(/=$/, '')))
end
# Returns an array of column names as strings if it's not
# an abstract class and table exists.
# Otherwise it returns an empty array.
def attribute_names
@attribute_names ||= if !abstract_class? && table_exists?
column_names