Laravel Eloquent 选择案例? [英] Laravel Eloquent Select CASE?
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问题描述
有没有人有 PHP 经验?Laravel Eloquent 谁能帮我解决这个语句?我正在尝试在 raw() 方法中注入一个 CASE... WHEN.. END... .似乎完全被无视了.现有的文档还没有.我尝试了几种不同的方法都没有成功.我正在努力解决这个问题:
Is there anyone with experience in PHP & Laravel Eloquent who can help me resolve this statement? I'm trying to inject a CASE... WHEN.. END... inside a raw() method. It seemed like it was completely ignored. The existing documentation hasn't been . I've tried several different things to no prevail. I'm trying to pull this off:
SELECT shares.id, ...,
CASE WHEN users.id = <CurrentUser> THEN 1 ELSE 0 END AS is_user,
...
FROM <table>
...
源代码如下:
$shares = Share::where('shares.status', '=', SHARE_STATUS_APPROVED)
->where('shares.deleted', '=', '0')
->where('locations.lat', '<=', $nelat)
->where('locations.lat', '>=', $swlat)
->where('locations.lng', '>=', $nelng)
->where('locations.lng', '<=', $swlng)
->where('users.id', '=', $user)
->orWhere('shares.connected_user_id', '=', $user)
->join('users', 'shares.user_id', '=', 'users.id')
->join('locations', 'locations.id', '=', 'users.location_id')
->join('provinces', 'provinces.id', '=', 'locations.province_id')
->join('countries', 'countries.id', '=', 'locations.country_id')
->select('shares.id AS share_id', 'users.id AS user_id', 'shares.connected_user_id', 'shares.original_language_id', 'shares.image',
'users.first_name', 'users.last_name', 'users.email',
'locations.city', 'provinces.name', 'countries.code',
'locations.lat', 'locations.lng',
'shares.created_at')
->raw('(CASE WHEN users.id = ' . $user . ' THEN 1 ELSE 0 END) AS is_user')
->orderBy('shares.created_at', 'desc')
->orderBy('users.id', 'asc')
->orderBy('shares.connected_user_id', 'asc')
->get();
推荐答案
在 SELECT
语句中移动你的 raw()
调用:
Move your raw()
call inside the SELECT
statement:
->select('shares.id AS share_id', 'users.id AS user_id', 'shares.connected_user_id',
'shares.original_language_id', 'shares.image',
'users.first_name', 'users.last_name', 'users.email',
'locations.city', 'provinces.name', 'countries.code',
'locations.lat', 'locations.lng',
'shares.created_at',
DB::raw('(CASE WHEN users.id = ' . $user . ' THEN 1 ELSE 0 END) AS is_user')
)
->orderBy('shares.created_at', 'desc')
来自:https://laravel.com/docs/5.4/queries#raw-表达式
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