Allow set multiple JOINs

Author: natanfelles

src/Manipulation/Traits/Join.php

@@ -365,7 +365,7 @@ private function setJoin(
         string $clause = null,
         Closure | array $expression = null
     ) : static {
-        $this->sql['join'] = [
+        $this->sql['join'][] = [
             'type' => $type,
             'table' => $table,
             'clause' => $clause,
@@ -384,17 +384,24 @@ protected function renderJoin() : ?string
         if ( ! isset($this->sql['join'])) {
             return null;
         }
-        $type = $this->renderJoinType($this->sql['join']['type']);
-        $conditional = $this->renderJoinConditional(
-            $type,
-            $this->sql['join']['table'],
-            $this->sql['join']['clause'],
-            $this->sql['join']['expression']
-        );
-        if ($type) {
-            $type .= ' ';
+        $result = '';
+        foreach ($this->sql['join'] as $index => $join) {
+            $type = $this->renderJoinType($join['type']);
+            $conditional = $this->renderJoinConditional(
+                $type,
+                $join['table'],
+                $join['clause'],
+                $join['expression']
+            );
+            if ($type) {
+                $type .= ' ';
+            }
+            if ($index > 0) {
+                $result .= \PHP_EOL;
+            }
+            $result .= " {$type}JOIN {$conditional}";
         }
-        return " {$type}JOIN {$conditional}";
+        return $result;
     }
 
     /**

tests/Manipulation/Traits/JoinTest.php

@@ -81,17 +81,30 @@ public function testJoin() : void
     {
         self::assertNull($this->statement->renderJoin());
         $this->statement->join('users');
-        self::assertSame(' JOIN `users`', $this->statement->renderJoin());
+        self::assertSame(
+            ' JOIN `users`',
+            $this->statement->renderJoin()
+        );
+    }
+
+    public function testMultipleJoins() : void
+    {
+        self::assertNull($this->statement->renderJoin());
+        $this->statement->join('users');
+        self::assertSame(
+            ' JOIN `users`',
+            $this->statement->renderJoin()
+        );
         $this->statement->join('users', 'natural');
-        self::assertSame(' NATURAL JOIN `users`', $this->statement->renderJoin());
-        $this->statement->join('users', 'cross', 'using', ['user_id']);
         self::assertSame(
-            ' CROSS JOIN `users` USING (`user_id`)',
+            ' JOIN `users`' . \PHP_EOL . ' NATURAL JOIN `users`',
             $this->statement->renderJoin()
         );
-        $this->statement->join('users', 'left', 'on', static fn () => 'profiles.user_id = users.id');
+        $this->statement->join('foo', 'inner');
         self::assertSame(
-            ' LEFT JOIN `users` ON (profiles.user_id = users.id)',
+            ' JOIN `users`' . \PHP_EOL .
+            ' NATURAL JOIN `users`' . \PHP_EOL .
+            ' INNER JOIN `foo`',
             $this->statement->renderJoin()
         );
     }