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| author | lukeludwig <ludwig@tstmedia.com> | 2009-01-16 13:04:19 -0600 |
|---|---|---|
| committer | Michael Koziarski <michael@koziarski.com> | 2009-01-17 18:09:13 +1300 |
| commit | 3ee4e009185173aab78f6503ee45e3ef4482874e (patch) | |
| tree | cdf8f8219a3af0c6a33275d1217abfb4efc79d90 /activerecord/test/cases/associations | |
| parent | fe013ce93415a88b6c23fd750bd8cbab60d6395d (diff) | |
| download | rails-3ee4e009185173aab78f6503ee45e3ef4482874e.tar.gz rails-3ee4e009185173aab78f6503ee45e3ef4482874e.tar.bz2 rails-3ee4e009185173aab78f6503ee45e3ef4482874e.zip | |
Cache columns for has_and_belongs_to_many associations
This avoids repeatedly calling SHOW COLUMNS when the association is queried
[#1738 state:committed]
Diffstat (limited to 'activerecord/test/cases/associations')
| -rw-r--r-- | activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb b/activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb index 2f08e09d43..ee03d5d944 100644 --- a/activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb +++ b/activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb @@ -775,4 +775,15 @@ class HasAndBelongsToManyAssociationsTest < ActiveRecord::TestCase end end end + + def test_caching_of_columns + david = Developer.find(1) + # clear cache possibly created by other tests + david.projects.reset_column_information + assert_queries(1) { david.projects.columns; david.projects.columns } + # and again to verify that reset_column_information clears the cache correctly + david.projects.reset_column_information + assert_queries(1) { david.projects.columns; david.projects.columns } + end + end |