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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Refactored ActiveRecord::Base.to_xml to become a delegate for XmlSerializer, which restores sanity to the mega method. This refactoring also reinstates the opinions that type="string" is redundant and ugly and nil-differentiation is not a concern of serialization [DHH]

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Added simple hash conditions to find that'll just convert hash to an AND-based condition string (closes #5143) [hcatlin@gmail.com]

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Fixed that :includes merged from with_scope won't cause the same association to be loaded more than once if repetition occurs in the clauses (closes #5253) [alex@purefiction.net]

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Fixed that Base.find :all, :conditions => [ "id IN (?)", collection ] would fail if collection was empty [DHH]

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Add support for FrontBase (http://www.frontbase.com/) with a new adapter thanks to the hard work of one Mike Laster. Closes #4093. [mlaster@metavillage.com]

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Stop respond_to? from throwing when instances are created 'irregularly' i.e. yaml loads.  [zenspider] Closes #4587


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Changed those private ActiveRecord methods to take optional third argument :auto instead of nil for performance optimizations.  (closes #4456) [Stefan]

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Private ActiveRecord methods add_limit, add_joins, and add_conditions take an OPTIONAL third argument 'scope' (closes #4456) [Rick]

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Fixed that records returned from has_and_belongs_to_many associations with additional attributes should be marked as read only (fixes #4512) [DHH] DEPRECATED: Using additional attributes on has_and_belongs_to_many associations. Instead upgrade your association to be a real join model [DHH]

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Do not implicitly mark recordss of has_many :through as readonly but do mark habtm records as readonly (eventually only on join tables without rich attributes).

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Remove overrated warning from adapter_test




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