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| author | Ryuta Kamizono <kamipo@gmail.com> | 2015-05-05 15:35:42 +0900 |
|---|---|---|
| committer | Ryuta Kamizono <kamipo@gmail.com> | 2015-05-05 15:35:42 +0900 |
| commit | 7bfc6ea1ef6963eeff39d1cdd4852a822371b528 (patch) | |
| tree | cd13bb86555b9e769adc30d0c9a0888784950985 /activerecord/lib | |
| parent | 984a4db3c35af4cd0e2191775b00f850f95ae66c (diff) | |
| download | rails-7bfc6ea1ef6963eeff39d1cdd4852a822371b528.tar.gz rails-7bfc6ea1ef6963eeff39d1cdd4852a822371b528.tar.bz2 rails-7bfc6ea1ef6963eeff39d1cdd4852a822371b528.zip | |
Use `select_rows` instead of `select_one` in `select_value`
`select_one` create `ActiveRecord::Result` instance. It is better to use
`select_rows` instead of `select_one` for performance.
Diffstat (limited to 'activerecord/lib')
| -rw-r--r-- | activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb index 42c794c828..431fe25501 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb @@ -40,8 +40,9 @@ module ActiveRecord # Returns a single value from a record def select_value(arel, name = nil, binds = []) - if result = select_one(arel, name, binds) - result.values.first + arel, binds = binds_from_relation arel, binds + if result = select_rows(to_sql(arel, binds), name, binds).first + result.first end end |