public function testParameterisedLeftJoins()
{
$query = new SQLSelect();
$query->setSelect(array('"SQLSelectTest_DO"."Name"', '"SubSelect"."Count"'));
$query->setFrom('"SQLSelectTest_DO"');
$query->addLeftJoin('(SELECT "Title", COUNT(*) AS "Count" FROM "SQLSelectTestBase" GROUP BY "Title" HAVING "Title" NOT LIKE ?)', '"SQLSelectTest_DO"."Name" = "SubSelect"."Title"', 'SubSelect', 20, array('%MyName%'));
$query->addWhere(array('"SQLSelectTest_DO"."Date" > ?' => '2012-08-08 12:00'));
$this->assertSQLEquals('SELECT "SQLSelectTest_DO"."Name", "SubSelect"."Count"
FROM "SQLSelectTest_DO" LEFT JOIN (SELECT "Title", COUNT(*) AS "Count" FROM "SQLSelectTestBase"
GROUP BY "Title" HAVING "Title" NOT LIKE ?) AS "SubSelect" ON "SQLSelectTest_DO"."Name" =
"SubSelect"."Title"
WHERE ("SQLSelectTest_DO"."Date" > ?)', $query->sql($parameters));
$this->assertEquals(array('%MyName%', '2012-08-08 12:00'), $parameters);
$query->execute();
}
/**
* Return the number of rows in this query if the limit were removed. Useful in paged data sets.
*
* @param string $column
* @return int
*/
public function unlimitedRowCount($column = null)
{
// we can't clear the select if we're relying on its output by a HAVING clause
if (count($this->having)) {
$records = $this->execute();
return $records->numRecords();
}
$clone = clone $this;
$clone->limit = null;
$clone->orderby = null;
// Choose a default column
if ($column == null) {
if ($this->groupby) {
// @todo Test case required here
$countQuery = new SQLSelect();
$countQuery->setSelect("count(*)");
$countQuery->setFrom(array('(' . $clone->sql($innerParameters) . ') all_distinct'));
$sql = $countQuery->sql($parameters);
// $parameters should be empty
$result = DB::prepared_query($sql, $innerParameters);
return (int) $result->value();
} else {
$clone->setSelect(array("count(*)"));
}
} else {
$clone->setSelect(array("count({$column})"));
}
$clone->setGroupBy(array());
return (int) $clone->execute()->value();
}
/**
* Set foreign keys of has_many objects to 0 where those objects were
* disowned as a result of a partial publish / unpublish.
* I.e. this object and its owned objects were recently written to $targetStage,
* but deleted objects were not.
*
* Note that this operation does not create any new Versions
*
* @param string $sourceStage Objects in this stage will not be unlinked.
* @param string $targetStage Objects which exist in this stage but not $sourceStage
* will be unlinked.
*/
public function unlinkDisownedObjects($sourceStage, $targetStage)
{
$owner = $this->owner;
// after publishing, objects which used to be owned need to be
// dis-connected from this object (set ForeignKeyID = 0)
$owns = $owner->config()->owns;
$hasMany = $owner->config()->has_many;
if (empty($owns) || empty($hasMany)) {
return;
}
$ownedHasMany = array_intersect($owns, array_keys($hasMany));
foreach ($ownedHasMany as $relationship) {
// Find metadata on relationship
$joinClass = $owner->hasManyComponent($relationship);
$joinField = $owner->getRemoteJoinField($relationship, 'has_many', $polymorphic);
$idField = $polymorphic ? "{$joinField}ID" : $joinField;
$joinTable = DataObject::getSchema()->tableForField($joinClass, $idField);
// Generate update query which will unlink disowned objects
$targetTable = $this->stageTable($joinTable, $targetStage);
$disowned = new SQLUpdate("\"{$targetTable}\"");
$disowned->assign("\"{$idField}\"", 0);
$disowned->addWhere(array("\"{$targetTable}\".\"{$idField}\"" => $owner->ID));
// Build exclusion list (items to owned objects we need to keep)
$sourceTable = $this->stageTable($joinTable, $sourceStage);
$owned = new SQLSelect("\"{$sourceTable}\".\"ID\"", "\"{$sourceTable}\"");
$owned->addWhere(array("\"{$sourceTable}\".\"{$idField}\"" => $owner->ID));
// Apply class condition if querying on polymorphic has_one
if ($polymorphic) {
$disowned->assign("\"{$joinField}Class\"", null);
$disowned->addWhere(array("\"{$targetTable}\".\"{$joinField}Class\"" => get_class($owner)));
$owned->addWhere(array("\"{$sourceTable}\".\"{$joinField}Class\"" => get_class($owner)));
}
// Merge queries and perform unlink
$ownedSQL = $owned->sql($ownedParams);
$disowned->addWhere(array("\"{$targetTable}\".\"ID\" NOT IN ({$ownedSQL})" => $ownedParams));
$owner->extend('updateDisownershipQuery', $disowned, $sourceStage, $targetStage, $relationship);
$disowned->execute();
}
}
