首先是我的桌子
我已将产品的格式/模板数据存储在第一个表中。许多产品可以使用格式/模板。
Format meta table. Primary Key is format_id. (has some more other columns)
+-----------+-------+
| format_id | title |
+-----------+-------+
| 1 | f.a |
| 2 | f.b |
| 3 | f.c |
| 4 | f.d |
+-----------+-------+
在第二个表中，我存储产品数据。每个产品都有一个唯一的 ID，并且只使用一个唯一的格式/模板。此表包含 product_price、product_quantity 等数据。每个产品的详细信息都保存在另一个表中。
Product meta table. Primary Key is product_id. (has some more other columns)
+-----------+------------+-------+
| format_id | product_id | title |
+-----------+------------+-------+
| 1 | 1 | p.a |
| 1 | 2 | p.b |
| 1 | 3 | p.c |
| 1 | 4 | p.d |
+-----------+------------+-------+
这是我保存产品详细信息的最终表格。这里的值存储在 cell_id => 值对中。
Details table. No primary key. (has some more other columns)
+-----------+------------+---------+-------+
| format_id | product_id | cell_id | value |
+-----------+------------+---------+-------+
| 1 | 1 | 1 | d.a |
| 1 | 1 | 2 | d.b |
| 1 | 1 | 3 | d.c |
| 1 | 1 | 4 | d.d |
+-----------+------------+---------+-------+
现在我想要的结果
$result => ['format_meta'] => ['format_id'] = 1
=> ['title'] = f.a
['product_meta'] => ['format_id'] = 1
=> ['product_id'] = 1
=> ['title'] = p.a
['details'] => [0] => ['format_id'] = 1
=> ['product_id'] = 1
=> ['cell_id'] = 1
=> ['value'] = d.a
=> [1] => ['format_id'] = 1
=> ['product_id'] = 1
=> ['cell_id'] = 2
=> ['value'] = d.b
=> [2] => ['format_id'] = 1
=> ['product_id'] = 1
=> ['cell_id'] = 3
=> ['value'] = d.c
我完全不知道如何做到这一点。