It doesn't seem appropriate to hide this method from the public space. It precludes the user from customising queries in a DataList.
```php
$mylist->alterDataquery(function($query) {
$query->selectField("225,300,000km", "DistanceToMars");
});
```
When sorting a DataQuery over a relation, the SQLQuery automatically included the sort column. The issue with the implement is that potentially the joined record has a field with the same name as the source record causing it to be overridden.
In the attached test case, without the patch the title will be set to 'Bar' rather than 'Foo'.
This patch aliases the sort column. Alternativally a patch would be to
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
Cleanup of framework's use of @package and @subpackage labels and additional of labels for classes missing packages.
Moved all GridField related components to the one name.
Countless spelling fixes, grammar for other comments.
Link ClassName references in file headers.
Otherwise aggregate queries through DataQuery->column() fail unless the
passed in field is specifically quoted already. This fixes ManyManyListTest->testRemoveAll()
Lazy loading no longer loads fields from the versions table when querying. This could lead to incorrect data being displayed if the data on the object and the version it pointed to did not match.
API methods to allow setting of the context of the query that generated the DataObject on that object (used by the lazy loading mechanism to correctly query the Stage, Live, or Versions tables)
See https://github.com/silverstripe/sapphire/pull/1178 for context.
Lazy loading no longer loads fields from the versions table when querying. This could lead to incorrect data being displayed if the data on the object and the version it pointed to did not match.
API methods to allow setting of the context of the query that generated the DataObject on that object (used by the lazy loading mechanism to correctly query the Stage, Live, or Versions tables)
See https://github.com/silverstripe/sapphire/pull/1178 for context.
BUG Issue with deleted records not being queried properly.
API DataQuery::expressionForField no longer requires a second parameter. Rather the query object is inferred from the DataQuery itself. This should improve consistency of use of this function.
This bug will surface when using the ORM and adding an join to DataList
where a DataObject inherits another DataObject.
If you for example want to restrict the number of pages that only have a
related Staff object:
$list = DataList::create('Page')
->InnerJoin('Staff', '"Staff"."ID" = "Page"."StaffID");
This will create a SQL query where the INNER JOIN is before the
LEFT JOIN of Page and SiteTree in the resulting SQL string. In MySQL
and PostgreSQL this will create an invalid query.
This patch solves the problem by sorting the joins.
The entire framework repo (with the exception of system-generated files) has been amended to respect the 120c line-length limit. This is in preparation for the enforcement of this rule with PHP_CodeSniffer.
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.
The augmentSQL DataExtension method is always extended on the base data
class of data objects in DataQuery::getFinilisedQuery(). This results
in augmentSQL not being called for extensions that are applied to non-
base data classes when finalizing the query.
For example, if Versioned was applied to class B which extends class A,
which in turn extends DataObject, then augmentSQL would be extended for
class A in DataQuery::getFinilisedQuery(). Since class A doesn't have
the Versioned extension in this example, it would not work for class B.
Fixed this by extending augmentSQL on the actual data class and not
on the base class.
If the applyRelation() was passed a relation that went to a class with a parent
class with a database table, applyRelation would return the name of the parent
class, rather than the class the relation was actually too.
This bug was caused by the fact that SQLQuery::whereAny() removed existing filters. In line with addWhere() and setWhere(), I split this into addWhereAny() and setWhereAny(). Strictly speaking, this drops the method SQLQuery::whereAny(), but it was really just an internal function for exclude, and so I think that's acceptable.
MySQLDatabase::enumValuesForField() - Added stripslashes because backslashes are escaped in the type description
DataObject::requireTable() - Added double quotes to column names in automatically generated indexes for many_many relationships
DataObject::write() - Escaped class name for DB query
DataQuery::getFinalisedQuery() - Escaped class names for DB query
