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Performance enhancement for Base.exists?. CLoses #8769. [hasmanyjosh]

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git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@7274 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
This commit is contained in:
Michael Koziarski
2007-08-05 00:57:43 +00:00
parent 73f72eeec2
commit c4c6662498
1 changed files with 1 additions and 1 deletions
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activerecord/lib/active_record/base.rb
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@@ -447,7 +447,7 @@ module ActiveRecord #:nodoc:
# Person.exists?(:name => "David")
# Person.exists?(['name LIKE ?', "%#{query}%"])
def exists?(id_or_conditions)
!find(:first, :conditions => expand_id_conditions(id_or_conditions)).nil?
!find(:first, :select => "#{table_name}.#{primary_key}", :conditions => expand_id_conditions(id_or_conditions)).nil?
rescue ActiveRecord::ActiveRecordError
false
end