/**
* Set up the simplest initial query
*/
protected function initialiseQuery()
{
// Join on base table and let lazy loading join subtables
$baseClass = DataObject::getSchema()->baseDataClass($this->dataClass());
if (!$baseClass) {
throw new InvalidArgumentException("DataQuery::create() Can't find data classes for '{$this->dataClass}'");
}
// Build our intial query
$this->query = new SQLSelect(array());
$this->query->setDistinct(true);
if ($sort = singleton($this->dataClass)->stat('default_sort')) {
$this->sort($sort);
}
$baseTable = DataObject::getSchema()->tableName($baseClass);
$this->query->setFrom("\"{$baseTable}\"");
$obj = Injector::inst()->get($baseClass);
$obj->extend('augmentDataQueryCreation', $this->query, $this);
}
/**
* 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();
}
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();
}
