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NEW Add abstraction for sql RIGHT JOIN
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@GuySartorelli
GuySartorelli committed Sep 21, 2023
1 parent b8665a7 commit 47881da
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Showing 4 changed files with 98 additions and 52 deletions.
20 changes: 20 additions & 0 deletions src/ORM/DataQuery.php
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Original file line number Diff line number Diff line change
Expand Up @@ -831,6 +831,26 @@ public function leftJoin($table, $onClause, $alias = null, $order = 20, $paramet
return $this;
}

/**
* Add a RIGHT JOIN clause to this query.
*
* @param string $table The unquoted table to join to.
* @param string $onClause The filter for the join (escaped SQL statement).
* @param string $alias An optional alias name (unquoted)
* @param int $order A numerical index to control the order that joins are added to the query; lower order values
* will cause the query to appear first. The default is 20, and joins created automatically by the
* ORM have a value of 10.
* @param array $parameters Any additional parameters if the join is a parameterised subquery
* @return $this
*/
public function rightJoin($table, $onClause, $alias = null, $order = 20, $parameters = [])
{
if ($table) {
$this->query->addRightJoin($table, $onClause, $alias, $order, $parameters);
}
return $this;
}

/**
* Prefix of all joined table aliases. E.g. ->filter('Banner.Image.Title)'
* Will join the Banner, and then Image relations
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40 changes: 28 additions & 12 deletions src/ORM/Queries/SQLConditionalExpression.php
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Original file line number Diff line number Diff line change
Expand Up @@ -136,17 +136,25 @@ public function useConjunction()
*/
public function addLeftJoin($table, $onPredicate, $tableAlias = '', $order = 20, $parameters = [])
{
if (!$tableAlias) {
$tableAlias = $table;
}
$this->from[$tableAlias] = [
'type' => 'LEFT',
'table' => $table,
'filter' => [$onPredicate],
'order' => $order,
'parameters' => $parameters
];
return $this;
return $this->addJoin($table, 'LEFT', $onPredicate, $tableAlias, $order, $parameters);
}

/**
* Add a RIGHT JOIN criteria to the tables list.
*
* @param string $table Unquoted table name
* @param string $onPredicate The "ON" SQL fragment in a "RIGHT JOIN ... AS ... ON ..." statement, Needs to be valid
* (quoted) SQL.
* @param string $tableAlias Optional alias which makes it easier to identify and replace joins later on
* @param int $order A numerical index to control the order that joins are added to the query; lower order values
* will cause the query to appear first. The default is 20, and joins created automatically by the
* ORM have a value of 10.
* @param array $parameters Any additional parameters if the join is a parameterized subquery
* @return $this Self reference
*/
public function addRightJoin($table, $onPredicate, $tableAlias = '', $order = 20, $parameters = [])
{
return $this->addJoin($table, 'RIGHT', $onPredicate, $tableAlias, $order, $parameters);
}

/**
Expand All @@ -163,12 +171,20 @@ public function addLeftJoin($table, $onPredicate, $tableAlias = '', $order = 20,
* @return $this Self reference
*/
public function addInnerJoin($table, $onPredicate, $tableAlias = null, $order = 20, $parameters = [])
{
return $this->addJoin($table, 'INNER', $onPredicate, $tableAlias, $order, $parameters);
}

/**
* Add a JOIN criteria
*/
private function addJoin($table, $type, $onPredicate, $tableAlias = null, $order = 20, $parameters = []): static
{
if (!$tableAlias) {
$tableAlias = $table;
}
$this->from[$tableAlias] = [
'type' => 'INNER',
'type' => $type,
'table' => $table,
'filter' => [$onPredicate],
'order' => $order,
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33 changes: 22 additions & 11 deletions tests/php/ORM/DataQueryTest.php
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Original file line number Diff line number Diff line change
Expand Up @@ -51,22 +51,33 @@ public function testSortByJoinedFieldRetainsSourceInformation()
$this->assertEquals('Foo', $result['Title']);
}

public function provideJoins()
{
return [
[
'joinMethod' => 'innerJoin',
'joinType' => 'INNER',
],
[
'joinMethod' => 'leftJoin',
'joinType' => 'LEFT',
],
[
'joinMethod' => 'rightJoin',
'joinType' => 'RIGHT',
],
];
}

/**
* Test the leftJoin() and innerJoin method of the DataQuery object
* @dataProvider provideJoins
*/
public function testJoins()
public function testJoins($joinMethod, $joinType)
{
$dq = new DataQuery(Member::class);
$dq->innerJoin("Group_Members", "\"Group_Members\".\"MemberID\" = \"Member\".\"ID\"");
$this->assertSQLContains(
"INNER JOIN \"Group_Members\" ON \"Group_Members\".\"MemberID\" = \"Member\".\"ID\"",
$dq->sql($parameters)
);

$dq = new DataQuery(Member::class);
$dq->leftJoin("Group_Members", "\"Group_Members\".\"MemberID\" = \"Member\".\"ID\"");
$dq->$joinMethod("Group_Members", "\"Group_Members\".\"MemberID\" = \"Member\".\"ID\"");
$this->assertSQLContains(
"LEFT JOIN \"Group_Members\" ON \"Group_Members\".\"MemberID\" = \"Member\".\"ID\"",
"$joinType JOIN \"Group_Members\" ON \"Group_Members\".\"MemberID\" = \"Member\".\"ID\"",
$dq->sql($parameters)
);
}
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57 changes: 28 additions & 29 deletions tests/php/ORM/SQLSelectTest.php
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Original file line number Diff line number Diff line change
Expand Up @@ -435,29 +435,33 @@ public function testFiltersOnFK()
);
}

public function testInnerJoin()
public function testJoinSQL()
{
$query = new SQLSelect();
$query->setFrom('MyTable');
$query->addInnerJoin('MyOtherTable', 'MyOtherTable.ID = 2');
$query->addRightJoin('MySecondTable', 'MyOtherTable.ID = MySecondTable.ID');
$query->addLeftJoin('MyLastTable', 'MyOtherTable.ID = MyLastTable.ID');

$this->assertSQLEquals(
'SELECT * FROM MyTable ' .
'INNER JOIN "MyOtherTable" ON MyOtherTable.ID = 2 ' .
'RIGHT JOIN "MySecondTable" ON MyOtherTable.ID = MySecondTable.ID ' .
'LEFT JOIN "MyLastTable" ON MyOtherTable.ID = MyLastTable.ID',
$query->sql($parameters)
);

$query = new SQLSelect();
$query->setFrom('MyTable');
$query->addInnerJoin('MyOtherTable', 'MyOtherTable.ID = 2', 'table1');
$query->addLeftJoin('MyLastTable', 'MyOtherTable.ID = MyLastTable.ID', 'table2');
$query->addRightJoin('MySecondTable', 'MyOtherTable.ID = MySecondTable.ID', 'table2');
$query->addLeftJoin('MyLastTable', 'MyOtherTable.ID = MyLastTable.ID', 'table3');

$this->assertSQLEquals(
'SELECT * FROM MyTable ' .
'INNER JOIN "MyOtherTable" AS "table1" ON MyOtherTable.ID = 2 ' .
'LEFT JOIN "MyLastTable" AS "table2" ON MyOtherTable.ID = MyLastTable.ID',
'RIGHT JOIN "MySecondTable" AS "table2" ON MyOtherTable.ID = MySecondTable.ID ' .
'LEFT JOIN "MyLastTable" AS "table3" ON MyOtherTable.ID = MyLastTable.ID',
$query->sql($parameters)
);
}
Expand Down Expand Up @@ -739,38 +743,33 @@ public function testLimitSetFromClauseString()
$this->assertEquals(10, $limit['start']);
}

public function testParameterisedInnerJoins()
public function provideParameterisedJoinSQL()
{
$query = new SQLSelect();
$query->setSelect(['"SQLSelectTest_DO"."Name"', '"SubSelect"."Count"']);
$query->setFrom('"SQLSelectTest_DO"');
$query->addInnerJoin(
'(SELECT "Title", COUNT(*) AS "Count" FROM "SQLSelectTestBase" GROUP BY "Title" HAVING "Title" NOT LIKE ?)',
'"SQLSelectTest_DO"."Name" = "SubSelect"."Title"',
'SubSelect',
20,
['%MyName%']
);
$query->addWhere(['"SQLSelectTest_DO"."Date" > ?' => '2012-08-08 12:00']);

$this->assertSQLEquals(
'SELECT "SQLSelectTest_DO"."Name", "SubSelect"."Count"
FROM "SQLSelectTest_DO" INNER 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(['%MyName%', '2012-08-08 12:00'], $parameters);
$query->execute();
return [
[
'joinMethod' => 'addInnerJoin',
'joinType' => 'INNER',
],
[
'joinMethod' => 'addLeftJoin',
'joinType' => 'LEFT',
],
[
'joinMethod' => 'addRightJoin',
'joinType' => 'RIGHT',
],
];
}

public function testParameterisedLeftJoins()
/**
* @dataProvider provideParameterisedJoinSQL
*/
public function testParameterisedJoinSQL($joinMethod, $joinType)
{
$query = new SQLSelect();
$query->setSelect(['"SQLSelectTest_DO"."Name"', '"SubSelect"."Count"']);
$query->setFrom('"SQLSelectTest_DO"');
$query->addLeftJoin(
$query->$joinMethod(
'(SELECT "Title", COUNT(*) AS "Count" FROM "SQLSelectTestBase" GROUP BY "Title" HAVING "Title" NOT LIKE ?)',
'"SQLSelectTest_DO"."Name" = "SubSelect"."Title"',
'SubSelect',
Expand All @@ -781,7 +780,7 @@ public function testParameterisedLeftJoins()

$this->assertSQLEquals(
'SELECT "SQLSelectTest_DO"."Name", "SubSelect"."Count"
FROM "SQLSelectTest_DO" LEFT JOIN (SELECT "Title", COUNT(*) AS "Count" FROM "SQLSelectTestBase"
FROM "SQLSelectTest_DO" ' . $joinType . ' 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" > ?)',
Expand Down

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