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Added update_attributes! which uses save! to raise an exception if a validation error prevents saving (closes #6192) [jonathan]

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Deprecation tests. Remove warnings for dynamic finders and for the foo_count ethod if it's also an attribute.

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We cant make MySQL 5 happy if it means making SQLite and PostgreSQL cry. So currently MySQL 5 is not fully supported for Rails when youre using eager loading (closes #6133, #6135). I have contacted MySQL to make them fix http://bugs.mysql.com/bug.php?id=13551 [DHH]

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Added parentheses around FROM clauses generated by Base and associations since MySQL 5 claim that to be the standard (and will screw up joins if its not there), see http://bugs.mysql.com/bug.php?id=13551 [DHH]

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Backed out of new_record? to new? transformation as it would screw up existing models that did boolean calls on "new" attributes [DHH]

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Deprecated ActiveRecord::Base.new_record? in favor of ActiveRecord::Base.new? (old version still works until Rails 2.0) [DHH]

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Nested subclasses are not prefixed with the parent class' table_name since they should always use the base class' table_name. Closes #5911.

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Refactor ActiveRecord::Base.reset_subclasses to #reset, and add global observer resetting.  [Rick Olson]

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Fixed that default timezones for new / initialize should uphold utc setting (closes #5709) [daniluk@yahoo.com]

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The exists? class method should treat a string argument as an id rather than as conditions. Closes #5698.

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 Create and update return the new pk and the number of affected rows, respectively. The job of returning true to appease the validations chain is up to create_or_update.


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 Only set method_name = md.pre_match if the pre_match is an attribute. Plays nicely with other ? suffixed attribute methods.
 r4881@ks:  jeremy | 2006-07-30 23:53:37 -0700
 Heavier testing for attribute method suffixes.


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 Attribute methods
 r4877@ks:  jeremy | 2006-07-30 20:23:53 -0700
 Factor the attribute#{suffix} methods out of method_missing for easier extension.
 r4878@ks:  jeremy | 2006-07-30 20:42:23 -0700
 More specific method naming, declare many attribute method suffixes, set up default suffixes at module include rather than lazily.


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 decimal
 r4705@asus:  jeremy | 2006-06-27 12:20:47 -0700
 current_adapter? checks whether any of its arguments is the name of the current adapter class
 r4834@asus:  jeremy | 2006-07-08 13:08:24 -0700
 Room to float.
 r4835@asus:  jeremy | 2006-07-08 13:09:18 -0700
 Give lock test a few chances.
 r4836@asus:  jeremy | 2006-07-08 13:12:05 -0700
 Numeric and decimal columns map to BigDecimal instead of Float. Those with scale 0 map to Integer. Closes #5454.


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find_one uses find_every.first instead of find_initial since its primary key constraint obviates find_initial's :limit => 1. References #5635.

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Fixed a few Oracle issues: Allows Oracle's odd date handling to still work consistently within #to_xml, Passes test that hardcode insert statement by dropping the :id column, Updated RUNNING_UNIT_TESTS with Oracle instructions, Corrects method signature for #exec #5294 [schoenm@earthlink.net]

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Added find_or_initialize_by_X which works like find_or_create_by_X but doesn't save the newly instantiated record

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 Use the #lock method to obtain a row lock on a single record. Simply reloads the record with :lock => true.


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 locking
 r4645@asus:  jeremy | 2006-06-17 12:41:30 -0700
 missing reply fixture
 r4646@asus:  jeremy | 2006-06-19 13:05:23 -0700
 Use a per-thread (rather than global) transaction mutex so you may execute concurrent transactions on separate connections.
 r4647@asus:  jeremy | 2006-06-19 13:07:23 -0700
 PostgreSQL: introduce allow_concurrency option which determines whether to use blocking or asynchronous #execute. Adapters with blocking #execute will deadlock Ruby threads. The default value is ActiveRecord::Base.allow_concurrency.
 r4648@asus:  jeremy | 2006-06-19 13:08:40 -0700
 Pass the default allow_concurrency when instantiating new connections.
 r4649@asus:  jeremy | 2006-06-19 13:11:12 -0700
 Break out concurrent transaction tests and run them for PostgreSQLAdapter only (need to fork or system('some_test_script') for the other adapters)
 r4650@asus:  jeremy | 2006-06-19 13:42:48 -0700
 Row locking. Provide a locking clause with the :lock finder option or true for the default "FOR UPDATE".
 r4661@asus:  jeremy | 2006-06-19 15:36:51 -0700
 excise the junk mutex


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Use explicit delegation instead of method aliasing for AR::Base.to_param -> AR::Base.id. (closes #5299)


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