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(); } }