Merge pull request #8 from shopwareLabs/fix-level-changes-on-move

fix level changes on move

Author: JanPietrzyk

composer.json

@@ -7,6 +7,11 @@
             "Shopware\\DbalNestedSet\\": "src"
         }
     },
+    "autoload-dev": {
+        "psr-4": {
+            "Shopware\\DbalNestedSetTest\\": "tests"
+        }
+    },
     "require": {
         "php": "^7.0",
         "doctrine/dbal": "^2.5"

src/NestedSetWriter.php

@@ -207,9 +207,10 @@ public function moveAsLastChild(string $tableExpression, string $rootColumnName,
             throw new NestedSetExceptionInvalidNodeOperation('Cannot move node as last child of itself or into a descendant');
         }
 
-        $level = ($parent['level'] + 1) - $child['level'];
+        $level = ($parent['level'] + 1);
 
-        $this->updateNodePosition($tableExpression, $child, $parent['right'], $level);
+        $this->updateLevel($tableExpression, $child['id'], $level);
+        $this->updateNodePosition($tableExpression, $child, $parent['right'], $level - $child['level']);
     }
 
     /**
@@ -233,9 +234,10 @@ public function moveAsFirstChild(string $tableExpression, string $rootColumnName
             throw new NestedSetExceptionInvalidNodeOperation('Cannot move node as first child of itself or into a descendant');
         }
 
-        $level = ($parent['level'] + 1) - $child['level'];
+        $level = ($parent['level'] + 1);
 
-        $this->updateNodePosition($tableExpression, $child, $parent['left'] + 1, $level);
+        $this->updateLevel($tableExpression, $child['id'], $level);
+        $this->updateNodePosition($tableExpression, $child, $parent['left'] + 1, $level - $child['level']);
     }
 
     /**
@@ -259,9 +261,10 @@ public function moveAsPrevSibling(string $tableExpression, string $rootColumnNam
             throw new NestedSetExceptionInvalidNodeOperation('Cannot move node as prev sibling of itself or into a descendant');
         }
 
-        $level = $sibling['level'] - $child['level'];
+        $level = $sibling['level'];
 
-        $this->updateNodePosition($tableExpression, $child, $sibling['left'], $level);
+        $this->updateLevel($tableExpression, $child['id'], $level);
+        $this->updateNodePosition($tableExpression, $child, $sibling['left'], $level - $child['level']);
     }
 
     /**
@@ -285,9 +288,10 @@ public function moveAsNextSibling(string $tableExpression, string $rootColumnNam
             throw new NestedSetExceptionInvalidNodeOperation('Cannot move node as next sibling of itself or into a descendant');
         }
 
-        $level = $sibling['level'] - $child['level'];
+        $level = $sibling['level'];
 
-        $this->updateNodePosition($tableExpression, $child, $sibling['right'] + 1, $level);
+        $this->updateLevel($tableExpression, $child['id'], $level);
+        $this->updateNodePosition($tableExpression, $child, $sibling['right'] + 1, $level - $child['level']);
     }
 
     /**
@@ -465,4 +469,18 @@ private function applyDeltaToSubtree(string $tableExpression, int $rootValue, in
             ])
             ->execute();
     }
+
+    /**
+     * @param string $tableExpression
+     * @param int $id
+     * @param int $level
+     */
+    private function updateLevel(string $tableExpression, int $id, int $level)
+    {
+        $this->connection->update(
+            $tableExpression,
+            [$this->levelCol => $level],
+            [$this->pkCol => $id]
+        );
+    }
 }

tests/NestedSetWriterTest.php

@@ -162,6 +162,27 @@ public function test_move_as_last_child()
         $this->assertNode(11, 18, 19, 3, 1);
     }
 
+    public function test_move_as_last_child_with_different_levels()
+    {
+        \NestedSetBootstrap::insertDemoTree();
+
+        $this->writer->moveAsLastChild('tree', 'root_id', 3, 2); //make men last child of women
+
+        \NestedSetBootstrap::validateTree(1);
+
+        $this->assertNode(1, 1, 22, 0, 1);
+        $this->assertNode(3, 2, 21, 1, 1);
+        $this->assertNode(7, 3, 8, 2, 1);
+        $this->assertNode(10, 4, 5, 3, 1);
+        $this->assertNode(11, 6, 7, 3, 1);
+        $this->assertNode(8, 9, 10, 2, 1);
+        $this->assertNode(9, 11, 12, 2, 1);
+        $this->assertNode(2, 13, 20, 2, 1);
+        $this->assertNode(4, 14, 19, 3, 1);
+        $this->assertNode(5, 15, 16, 4, 1);
+        $this->assertNode(6, 17, 18, 4, 1);
+    }
+
     public function test_move_as_last_child_throws()
     {
         \NestedSetBootstrap::insertDemoTree();

tests/_bootstrap.php

@@ -96,11 +96,11 @@ public static function insertDemoTree(int $rootId = 1)
         $data = [
             [1,  1, 22, 0, 'Clothing'],
             [2,  2,  9, 1, 'Mens'],
-            [ 4,  3,  8, 2, 'Suits'],
-            [ 5,  4,  5, 3, 'Slacks'],
-            [ 6,  6,  7, 3, 'Jackets'],
-            [ 3, 10, 21, 1, 'Women'],
-            [ 7, 11, 16, 2, 'Dresses'],
+            [4,  3,  8, 2, 'Suits'],
+            [5,  4,  5, 3, 'Slacks'],
+            [6,  6,  7, 3, 'Jackets'],
+            [3, 10, 21, 1, 'Women'],
+            [7, 11, 16, 2, 'Dresses'],
             [10, 12, 13, 3, 'Evening Growns'],
             [11, 14, 15, 3, 'Sun Dresses'],
             [8, 17, 18, 2, 'Skirts'],