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* Restore DATABASE_URL even if it's nil in connection_handler testPrathamesh Sonpatki2014-01-101-1/+1
| | | | | - We have to restore DATABASE_URL to its previous state irrespective of previous value is nil or not
* Ensure Active Record connection consistencyschneems2014-01-091-0/+127
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently Active Record can be configured via the environment variable `DATABASE_URL` or by manually injecting a hash of values which is what Rails does, reading in `database.yml` and setting Active Record appropriately. Active Record expects to be able to use `DATABASE_URL` without the use of Rails, and we cannot rip out this functionality without deprecating. This presents a problem though when both config is set, and a `DATABASE_URL` is present. Currently the `DATABASE_URL` should "win" and none of the values in `database.yml` are used. This is somewhat unexpected to me if I were to set values such as `pool` in the `production:` group of `database.yml` they are ignored. There are many ways that active record initiates a connection today: - Stand Alone (without rails) - `rake db:<tasks>` - ActiveRecord.establish_connection - With Rails - `rake db:<tasks>` - `rails <server> | <console>` - `rails dbconsole` We should make all of these behave exactly the same way. The best way to do this is to put all of this logic in one place so it is guaranteed to be used. Here is my prosed matrix of how this behavior should work: ``` No database.yml No DATABASE_URL => Error ``` ``` database.yml present No DATABASE_URL => Use database.yml configuration ``` ``` No database.yml DATABASE_URL present => use DATABASE_URL configuration ``` ``` database.yml present DATABASE_URL present => Merged into `url` sub key. If both specify `url` sub key, the `database.yml` `url` sub key "wins". If other paramaters `adapter` or `database` are specified in YAML, they are discarded as the `url` sub key "wins". ``` ### Implementation Current implementation uses `ActiveRecord::Base.configurations` to resolve and merge all connection information before returning. This is achieved through a utility class: `ActiveRecord::ConnectionHandling::MergeAndResolveDefaultUrlConfig`. To understand the exact behavior of this class, it is best to review the behavior in activerecord/test/cases/connection_adapters/connection_handler_test.rb though it should match the above proposal.
* Move method used only in the test to the test code itselfIvan Kataitsev2013-04-251-0/+9
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* hide more data in the schema cacheAaron Patterson2013-03-141-13/+10
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* safely publish columns and columns hash infoAaron Patterson2013-03-141-9/+9
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* Alias refute methods to assert_not and perfer assert_not on testsRafael Mendonça França2012-12-311-5/+5
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* Fix memory leak in development modeJon Leighton2012-11-301-7/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Keying these hashes by klass causes reloadable classes to never get freed. Thanks to @thedarkone for pointing this out in the comments on 221571beb6b4bb7437989bdefaf421f993ab6002. This doesn't seem to make a massive difference to performance. Benchmark --------- require 'active_record' require 'benchmark/ips' class Post < ActiveRecord::Base establish_connection adapter: 'sqlite3', database: ':memory:' end GC.disable Benchmark.ips(20) do |r| r.report { Post.connection } end Before ------ Calculating ------------------------------------- 5632 i/100ms ------------------------------------------------- 218671.0 (±1.9%) i/s - 4364800 in 19.969401s After ----- Calculating ------------------------------------- 8743 i/100ms ------------------------------------------------- 206525.9 (±17.8%) i/s - 4039266 in 19.992590s
* Use "refute" instead of "assert !"Carlos Antonio da Silva2012-11-271-6/+5
| | | | Remove FIXME tag from abstract adapter test.
* Properly deprecate ConnectionHandler#connection_poolsJon Leighton2012-11-091-1/+7
| | | | | | | | Rather than just changing it and hoping for the best. Requested by @jeremy: https://github.com/rails/rails/commit/ba1544d71628abff2777c9c514142d7e9a159111#commitcomment-2106059
* Remove ActiveRecord::ModelJon Leighton2012-10-261-2/+2
| | | | | | | | | | In the end I think the pain of implementing this seamlessly was not worth the gain provided. The intention was that it would allow plain ruby objects that might not live in your main application to be subclassed and have persistence mixed in. But I've decided that the benefit of doing that is not worth the amount of complexity that the implementation introduced.
* rename AR::Model::Tag to AR::Tag - fixes #7714Francesco Rodriguez2012-09-201-2/+2
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* Cache the connection pool for a given classJon Leighton2012-08-311-0/+2
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* Make connection pool retrieval fasterJon Leighton2012-08-311-9/+4
| | | | | | * Loop rather than recurse in retrieve_connection_pool * Key the hash by class rather than class name. This avoids creating unnecessary strings.
* Simplify AR configuration code.Jon Leighton2012-06-151-3/+2
| | | | | Get rid of ActiveModel::Configuration, make better use of ActiveSupport::Concern + class_attribute, etc.
* Make connection pool fair with respect to waiting threads.Patrick Mahoney2012-05-251-1/+1
| | | | | | | | | | | | | | | The core of this fix is a threadsafe, fair Queue class. It is very similar to Queue in stdlib except that it supports waiting with a timeout. The issue this solves is that if several threads are contending for database connections, an unfair queue makes is possible that a thread will timeout even while other threads successfully acquire and release connections. A fair queue means the thread that has been waiting the longest will get the next available connection. This includes a few test fixes to avoid test ordering issues that cropped up during development of this patch.
* Revert "Merge pull request #6416 from pmahoney/threadsafe-connection-pool"Rafael Mendonça França2012-05-221-1/+1
| | | | | | | | | | | | This reverts commit d2901f0fc4270a765717ad572d559dc49a56b3a8, reversing changes made to 525839fdd8cc34d6d524f204528d5b6f36fe410c. Conflicts: activerecord/test/cases/connection_pool_test.rb Reason: This change broke the build (http://travis-ci.org/#!/rails/rails/builds/1391490) and we don't have any solution until now. I asked the author to try to fix it and open a new pull request.
* Make connection pool fair with respect to waiting threads.Patrick Mahoney2012-05-201-1/+1
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* Allow to run `connection_adapters/quoting_test.rb` independentlyPiotr Sarnacki2012-05-091-1/+3
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* Merge pull request #5362 from zenprogrammer/quoting_bugAaron Patterson2012-05-091-0/+11
|\ | | | | Fixed bug in ActiveRecord that caused classes to be quoted incorrectly
| * Fixed bug in Quoting that caused classes to be quoted incorrectlyRyan Oblak2012-03-091-0/+11
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* | Add support schema cache dump and load.kennyj2012-03-011-0/+15
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* connection specification will deep copy the configAaron Patterson2011-12-301-0/+12
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* Support establishing connection on ActiveRecord::Model.Jon Leighton2011-12-281-1/+1
| | | | | This is the 'top level' connection, inherited by any models that include ActiveRecord::Model or inherit from ActiveRecord::Base.
* Extract common logic into a methodJon Leighton2011-12-241-0/+3
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* Should clear the primary keys cache alsoJon Leighton2011-12-161-1/+5
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* Don't store defaults in the schema cacheJon Leighton2011-12-161-1/+1
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* Cache columns at the model level.Jon Leighton2011-12-161-9/+0
| | | | Allows two models to use the same table but have different primary keys.
* AbstractAdapter#close can be called to add the connection back to theAaron Patterson2011-11-291-0/+16
| | | | pool.
* expire will set in_use to falseAaron Patterson2011-11-291-0/+7
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* last_use is set on connection leaseAaron Patterson2011-11-291-0/+6
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* Leased connections return false on second leaseAaron Patterson2011-11-291-2/+11
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* Adapters keep in_use flag when leasedAaron Patterson2011-11-291-0/+16
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* Fix schema_cache_test.rb for sqlite3_memJon Leighton2011-11-291-6/+0
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* pools are 1:1 with spec now rather than 1:1 with classAaron Patterson2011-11-281-2/+0
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* pushing caching and visitors down to the connectionAaron Patterson2011-11-191-0/+55
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* Merge pull request #2897 from rsutphin/ar31-remove_connectionAaron Patterson2011-09-061-1/+20
| | | | Patch for issue #2820
* please use ruby -I lib:test path/to/test.rb, or export RUBY_OPTAaron Patterson2011-06-061-1/+1
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* Refactor Active Record test connection setup. Please see the ↵Jon Leighton2011-06-041-1/+1
| | | | RUNNING_UNIT_TESTS file for details, but essentially you can now configure things in test/config.yml. You can also run tests directly via the command line, e.g. ruby path/to/test.rb (no rake needed, uses default db connection from test/config.yml). This will help us fix the CI by enabling us to isolate the different Rails versions to different databases.
* adding active_connections? to the connection pool for finding open connectionsAaron Patterson2011-03-281-0/+33
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