Add unit test

Signed-off-by: Vitor Mattos <vitor@php.rio>

5 files changed, 12 insertions, 25 deletions

diff --git a/lib/private/DB/QueryBuilder/FunctionBuilder/FunctionBuilder.php b/lib/private/DB/QueryBuilder/FunctionBuilder/FunctionBuilder.php
index 3384ad8b42f..6b5fb751fbd 100644
--- a/lib/private/DB/QueryBuilder/FunctionBuilder/FunctionBuilder.php
+++ b/lib/private/DB/QueryBuilder/FunctionBuilder/FunctionBuilder.php
@@ -54,14 +54,9 @@ class FunctionBuilder implements IFunctionBuilder {
 		return new QueryFunction('CONCAT(' . $this->helper->quoteColumnName($x) . ', ' . $this->helper->quoteColumnName($y) . ')');
 	}
 
-	public function groupConcat($expr, ?string $separator = ',', ?string $orderBy = null): IQueryFunction {
-		if (is_null($orderBy)) {
-			$orderByClause = '';
-		} else {
-			$orderByClause = ' ORDER BY ' . $orderBy;
-		}
+	public function groupConcat($expr, ?string $separator = ','): IQueryFunction {
 		$separator = $this->connection->quote($separator);
-		return new QueryFunction('GROUP_CONCAT(' . $this->helper->quoteColumnName($expr) . $orderByClause . ' SEPARATOR ' . $separator . ')');
+		return new QueryFunction('GROUP_CONCAT(' . $this->helper->quoteColumnName($expr) . ' SEPARATOR ' . $separator . ')');
 	}
 
 	public function substring($input, $start, $length = null): IQueryFunction {
diff --git a/lib/private/DB/QueryBuilder/FunctionBuilder/OCIFunctionBuilder.php b/lib/private/DB/QueryBuilder/FunctionBuilder/OCIFunctionBuilder.php
index d3553565b7e..efc42e66112 100644
--- a/lib/private/DB/QueryBuilder/FunctionBuilder/OCIFunctionBuilder.php
+++ b/lib/private/DB/QueryBuilder/FunctionBuilder/OCIFunctionBuilder.php
@@ -73,11 +73,8 @@ class OCIFunctionBuilder extends FunctionBuilder {
 		return parent::least($x, $y);
 	}
 
-	public function groupConcat($expr, ?string $separator = ',', ?string $orderBy = null): IQueryFunction {
-		if (is_null($orderBy)) {
-			$orderBy = 'NULL';
-		}
-		$orderByClause = ' WITHIN GROUP(ORDER BY ' . $orderBy . ')';
+	public function groupConcat($expr, ?string $separator = ','): IQueryFunction {
+		$orderByClause = ' WITHIN GROUP(ORDER BY NULL)';
 		if (is_null($separator)) {
 			return new QueryFunction('LISTAGG(' . $this->helper->quoteColumnName($expr) . $orderByClause . ')');
 		}
diff --git a/lib/private/DB/QueryBuilder/FunctionBuilder/PgSqlFunctionBuilder.php b/lib/private/DB/QueryBuilder/FunctionBuilder/PgSqlFunctionBuilder.php
index 702b71e12b8..f4c1364fab1 100644
--- a/lib/private/DB/QueryBuilder/FunctionBuilder/PgSqlFunctionBuilder.php
+++ b/lib/private/DB/QueryBuilder/FunctionBuilder/PgSqlFunctionBuilder.php
@@ -31,15 +31,11 @@ class PgSqlFunctionBuilder extends FunctionBuilder {
 		return new QueryFunction('(' . $this->helper->quoteColumnName($x) . ' || ' . $this->helper->quoteColumnName($y) . ')');
 	}
 
-	public function groupConcat($expr, ?string $separator = ',', ?string $orderBy = null): IQueryFunction {
-		if (is_null($orderBy)) {
-			$orderByClause = '';
-		} else {
-			$orderByClause = ' ORDER BY ' . $orderBy;
-		}
+	public function groupConcat($expr, ?string $separator = ','): IQueryFunction {
 		if (is_null($separator)) {
-			return new QueryFunction('string_agg(' . $this->helper->quoteColumnName($expr) . $orderByClause . ')');
+			return new QueryFunction('string_agg(cast(' . $this->helper->quoteColumnName($expr) . ' AS varchar)');
 		}
-		return new QueryFunction('string_agg(' . $this->helper->quoteColumnName($expr) . ", '$separator'$orderByClause)");
+		$separator = $this->connection->quote($separator);
+		return new QueryFunction('string_agg(cast(' . $this->helper->quoteColumnName($expr) . " AS varchar), $separator)");
 	}
 }
diff --git a/lib/private/DB/QueryBuilder/FunctionBuilder/SqliteFunctionBuilder.php b/lib/private/DB/QueryBuilder/FunctionBuilder/SqliteFunctionBuilder.php
index 796495dfd89..74e4e30e7ff 100644
--- a/lib/private/DB/QueryBuilder/FunctionBuilder/SqliteFunctionBuilder.php
+++ b/lib/private/DB/QueryBuilder/FunctionBuilder/SqliteFunctionBuilder.php
@@ -31,9 +31,9 @@ class SqliteFunctionBuilder extends FunctionBuilder {
 		return new QueryFunction('(' . $this->helper->quoteColumnName($x) . ' || ' . $this->helper->quoteColumnName($y) . ')');
 	}
 
-	public function groupConcat($expr, ?string $separator = ',', ?string $orderBy = null): IQueryFunction {
-		$separator = $this->helper->quoteColumnName($separator);
-		return new QueryFunction('GROUP_CONCAT(' . $this->helper->quoteColumnName($expr) . "$separator)");
+	public function groupConcat($expr, ?string $separator = ','): IQueryFunction {
+		$separator = $this->connection->quote($separator);
+		return new QueryFunction('GROUP_CONCAT(' . $this->helper->quoteColumnName($expr) . ", $separator)");
 	}
 
 	public function greatest($x, $y): IQueryFunction {
diff --git a/lib/public/DB/QueryBuilder/IFunctionBuilder.php b/lib/public/DB/QueryBuilder/IFunctionBuilder.php
index 466a1c4ddf4..e04a4cbfdba 100644
--- a/lib/public/DB/QueryBuilder/IFunctionBuilder.php
+++ b/lib/public/DB/QueryBuilder/IFunctionBuilder.php
@@ -62,11 +62,10 @@ interface IFunctionBuilder {
 	 *
 	 * @param string|ILiteral|IParameter|IQueryFunction $expr The expression to group
 	 * @param string|null $separator The separator
-	 * @param string|null $orderBy Optional SQL expression (and direction) to order the grouped rows by.
 	 * @return IQueryFunction
 	 * @since 24.0.0
 	 */
-	public function groupConcat($expr, ?string $separator = ',', ?string $orderBy = null): IQueryFunction;
+	public function groupConcat($expr, ?string $separator = ','): IQueryFunction;
 
 	/**
 	 * Takes a substring from the input string