Symfony Tree就像Twig中的结构

Question

我有3个实体

1. 组
2. 子组
3. 产品

我通过加入这些表来获取数据

Group-SubGroup(OneToMany)和Product-SubGroup(ManyToMany)

数据：

+---------------+------------+----------+
|     Group     |  Subgroup  | Product  |
+---------------+------------+----------+
| Food          | Fruits     | Apple    |
| Food          | Fruits     | Orange   |
| Food          | Vegetables | Brinjal  |
| Food          | Vegetables | Onion    |
| Food          | Vegetables | Potato   |
| Food          | Vegetables | Zucchini |
| Clothes       | Men        | Jeans    |
| Clothes       | Men        | Shirts   |
| Clothes       | Women      | Jeans    |
| Clothes       | Women      | Skirt    |
+---------------+------------+----------+

我想要实现的是使用树枝的树状结构

Group     
  Subgroup   
        Product  
Group     
  Subgroup  
        Product  
        Product  
Group     
  Subgroup  
       Product  
       Product  
       Product  

任何想法我怎样才能在树枝上实现这一目标{i here但是我不明白...... ??

Answer 1

嗯，我想你可以这样运行它（如果我做对了）

{% for group in groups %}
    {% for subgroup in group.subgroups %}
        {% for product in subgroup.products %}
            // display your products
        {% endfor %}
    {% endfor %}
{% endfor %}