Question

我有两个表，page和edit。

page

+----+-----------+
| id | page_name |
+----+-----------+
|  1 | page      |
+----+-----------+

edit

+----+---------+------+
| id | page_id | name |
+----+---------+------+
|  1 |       1 | home |
|  1 |       1 | side |
+----+---------+------+

现在我有一个关系定义将两者联系在一起。它返回如下内容：

array(
  'id' => 1,
  'page_name' => 'page',
  'edit' => array(
    0 => array(
      'id' => 1,
      'page_id' => 1,
      'name' => 'home'
    ),
    1 => array(
      'id' => 2,
      'page_id' => 1,
      'name' => 'side'      
    )
  )
)

我希望能够将edit数组的键设置为某列的值。像这样：

array(
  'id' => 1,
  'page_name' => 'page',
  'edit' => array(
    'home' => array( // the key is the name column
      'id' => 1,
      'page_id' => 1,
      'name' => 'home'
    ),
    'side' => array( // the key is the name column
      'id' => 2,
      'page_id' => 1,
      'name' => 'side'      
    )
  )
)

如何使用Laravel的查询构建器执行此操作？或者这是我必须要格式化的东西用循环手动结构？

Answer 1

一种解决方案

//the page you will work with
$page = Page::find(1);

//his edits, by pairs array('name' => 'id', ..)
$page_edit_lists = $page->edit()->list('id', 'name');    

//now, look for a name
$edit_name = 'grammar fix';
$edit_id = array_get($page_edit_lists , $edit_name); //if exist or null

//now get the row by is ID
$page_edits = $page->edit()->get();
//when edits data is already loaded, so it will loop for you..
$edit = $page_edits->find($edit_id);
//or by dynamic querying, SELECT .. WHERE id = ? ..
$edit = $page->edit()->find($edit_id);

没有测试过，但我认为你明白了。还有我可怜的英语......

Answer 2

http://laravel.com/docs/5.1/collections keyBy（）。

$ collection = collect（[       [＆＃39; PRODUCT_ID＆＃39; =＆GT; ＆＃39; prod-100＆＃39;，＆＃39; name＆＃39; =＆GT; ＆＃39;台＆＃39]，       [＆＃39; PRODUCT_ID＆＃39; =＆GT; ＆＃39; prod-200＆＃39;，＆＃39; name＆＃39; =＆GT; ＆＃39;主席＆＃39;]，]）;

$ keyed = $ collection-＆gt; keyBy（＆＃39; product_id＆＃39;）;

$ keyed-＆GT;所有（）;

/ *       [           ＆＃39; PROD-100＆＃39; =＆GT; [＆＃39; PRODUCT_ID＆＃39; =＆GT; ＆＃39; prod-100＆＃39;，＆＃39; name＆＃39; =＆GT; ＆＃39;台＆＃39]，           ＆＃39; PROD-200＆＃39; =＆GT; [＆＃39; PRODUCT_ID＆＃39; =＆GT; ＆＃39; prod-200＆＃39;，＆＃39; name＆＃39; =＆GT; ＆＃39;椅＆＃39]，       ]   * /

如何设置Laravel查询构建器返回的数组键？

2 个答案: