Database abstraction broken up into controller, connector, query builder, and schema manager, each independently configurable via YAML / Injector
Creation of new DBQueryGenerator for database specific generation of SQL
Support for parameterised queries, move of code base to use these over escaped conditions
Refactor of SQLQuery into separate query classes for each of INSERT UPDATE DELETE and SELECT
Support for PDO
Installation process upgraded to use new ORM
SS_DatabaseException created to handle database errors, maintaining details of raw sql and parameter details for user code designed interested in that data.
Renamed DB static methods to conform correctly to naming conventions (e.g. DB::getConn -> DB::get_conn)
3.2 upgrade docs
Performance Optimisation and simplification of code to use more concise API
API Ability for database adapters to register extensions to ConfigureFromEnv.php
- Document the format for descriptor arrays
- Implement the behaviour that developers have come to expect for
string descriptors of indexes
- Add test for handling of unique indexes (MySQL & sqlite3)
- Resolve#2403
Versioned needs to convert unique indexes to non-unique for its suffixed
tables, such as Foo_Live and Foo_versions. Because DataObject accepts
string descriptors such as array('UniqIDX' => 'unique (Uniq)') as well
as array-based descriptors, Versioned needs to recognize string
descriptors. This patch accomplishes that. Before, Versioned would fail
to convert string-described indexes to non-unique, resulting in run-time
errors when creating a new version of an object.
The previous argument to the Enum was:
"Status" => "Enum('Active, Injured, Retired')"
This would cause issues where the 'Injured' and 'Retired' statuses would actually be stored in the database as ' Injured' and ' Retired' respectively, at least in 3.0.
Using an array() to specify the enum, and using normal array syntax (albeit within a string) is less likely to cause errors.
Adds three extra methods to Data/SQLQuery query that allow for starting
a disjunctive subgroup, a conjunctive subgroup and for ending a subgroup.
Database::sqlWhereToString() now builds up the WHERE clause one by one
instead of with a straight implode. Uses a stack to know which conenctive
to use.
Some of the SQLQuery recipes are now handled better by DataList,
others should be contrasted with their respective DataList implementation,
pointing out the limitations
