Symfony表单类别-子类别 [英] Symfony form category - subcategory

问题描述

我尝试制作一个带有类别和子类别的表单，如下图所示:

I try to make a form with category and subcategory like the picture below :

所以，我把表格做成了:

So, I made my form like that :

        ->add('souscategorie', EntityType::class, array(
                                    'label' => false,
                                    'class' => 'App:souscategorie',
                                    'query_builder' => function(EntityRepository $er) {
                                        return $er->createQueryBuilder('souscategorie')
                                            ->leftJoin('souscategorie.categorie', 'categorie')
                                            ->addSelect('souscategorie')
                                            ->addSelect('categorie')
                                        ;
                                    },
                                    'expanded'=> true,
                                    'multiple'=> true,
                                    'choice_label' => function($sousCategorie){
                                        return $sousCategorie->getCategorie()->getNom()." - ".$sousCategorie->getNom();
                                    },
                                    'group_by' => function($sousCategorie, $key, $value){
                                        return $sousCategorie->getCategorie()->getNom();
                                    }))

结果显示所有类别和子类别是串联的.

The result show all categories and subcategories concatenate.

如何划分类别和子类别?

How to split categories and subcategories ?

感谢您的帮助；)

推荐答案

要为类别创建 tree 结构，可以使用

To make tree structure for your categories you can use StofDoctrineExtensionsBundle

该软件包的文档在这里

您需要使用 Tree 扩展名(嵌套集变体).

You would need to use Tree extension (nestedset variation).

以下是显示 查看全文