我正在使用 Laravel Eloquent 查询构建器,并且我有一个查询,我希望在多个条件下使用 WHERE
子句。它有效,但并不优雅。
例子:
$results = User::where('this', '=', 1)
->where('that', '=', 1)
->where('this_too', '=', 1)
->where('that_too', '=', 1)
->where('this_as_well', '=', 1)
->where('that_as_well', '=', 1)
->where('this_one_too', '=', 1)
->where('that_one_too', '=', 1)
->where('this_one_as_well', '=', 1)
->where('that_one_as_well', '=', 1)
->get();
有没有更好的方法来做到这一点,还是我应该坚持这种方法?
->where(...)
调用可以替换为一个 ->whereIn(...)
调用,等等。
在 Laravel 5.3 中(自 7.x 起仍然如此)您可以使用更精细的 where 作为数组传递:
$query->where([
['column_1', '=', 'value_1'],
['column_2', '<>', 'value_2'],
[COLUMN, OPERATOR, VALUE],
...
])
就我个人而言,我还没有通过多次 where
调用找到此用例,但事实是您可以使用它。
自 2014 年 6 月起,您可以将数组传递给 where
只要您希望所有的 wheres
使用 and
运算符,您可以这样分组:
$matchThese = ['field' => 'value', 'another_field' => 'another_value', ...];
// if you need another group of wheres as an alternative:
$orThose = ['yet_another_field' => 'yet_another_value', ...];
然后:
$results = User::where($matchThese)->get();
// with another group
$results = User::where($matchThese)
->orWhere($orThose)
->get();
以上将导致这样的查询:
SELECT * FROM users
WHERE (field = value AND another_field = another_value AND ...)
OR (yet_another_field = yet_another_value AND ...)
您可以像这样在匿名函数中使用子查询:
$results = User::where('this', '=', 1)
->where('that', '=', 1)
->where(
function($query) {
return $query
->where('this_too', 'LIKE', '%fake%')
->orWhere('that_too', '=', 1);
})
->get();
查询范围可以帮助您让您的代码更具可读性。
http://laravel.com/docs/eloquent#query-scopes
用一些例子更新这个答案:
在您的模型中,创建如下范围方法:
public function scopeActive($query)
{
return $query->where('active', '=', 1);
}
public function scopeThat($query)
{
return $query->where('that', '=', 1);
}
然后,您可以在构建查询时调用此范围:
$users = User::active()->that()->get();
使用数组的条件:
$users = User::where([
'column1' => value1,
'column2' => value2,
'column3' => value3
])->get();
将产生如下查询:
SELECT * FROM TABLE WHERE column1 = value1 and column2 = value2 and column3 = value3
使用匿名函数的条件:
$users = User::where('column1', '=', value1)
->where(function($query) use ($variable1,$variable2){
$query->where('column2','=',$variable1)
->orWhere('column3','=',$variable2);
})
->where(function($query2) use ($variable1,$variable2){
$query2->where('column4','=',$variable1)
->where('column5','=',$variable2);
})->get();
将产生如下查询:
SELECT * FROM TABLE WHERE column1 = value1 and (column2 = value2 or column3 = value3) and (column4 = value4 and column5 = value5)
在这种情况下,您可以使用以下内容:
User::where('this', '=', 1)
->whereNotNull('created_at')
->whereNotNull('updated_at')
->where(function($query){
return $query
->whereNull('alias')
->orWhere('alias', '=', 'admin');
});
它应该为您提供如下查询:
SELECT * FROM `user`
WHERE `user`.`this` = 1
AND `user`.`created_at` IS NOT NULL
AND `user`.`updated_at` IS NOT NULL
AND (`alias` IS NULL OR `alias` = 'admin')
Model::where('column_1','=','value_1')
->where('column_2 ','=','value_2')
->get();
或者
// If you are looking for equal value then no need to add =
Model::where('column_1','value_1')
->where('column_2','value_2')
->get();
或者
Model::where(['column_1' => 'value_1',
'column_2' => 'value_2'])->get();
多个 where 子句
$query=DB::table('users')
->whereRaw("users.id BETWEEN 1003 AND 1004")
->whereNotIn('users.id', [1005,1006,1007])
->whereIn('users.id', [1008,1009,1010]);
$query->where(function($query2) use ($value)
{
$query2->where('user_type', 2)
->orWhere('value', $value);
});
if ($user == 'admin'){
$query->where('users.user_name', $user);
}
终于得到结果
$result = $query->get();
whereColumn
方法可以传递多个条件的数组。这些条件将使用 and
运算符连接。
例子:
$users = DB::table('users')
->whereColumn([
['first_name', '=', 'last_name'],
['updated_at', '>', 'created_at']
])->get();
$users = User::whereColumn([
['first_name', '=', 'last_name'],
['updated_at', '>', 'created_at']
])->get();
有关详细信息,请查看文档的此部分 https://laravel.com/docs/5.4/queries#where-clauses
$projects = DB::table('projects')->where([['title','like','%'.$input.'%'],
['status','<>','Pending'],
['status','<>','Not Available']])
->orwhere([['owner', 'like', '%'.$input.'%'],
['status','<>','Pending'],
['status','<>','Not Available']])->get();
请务必将任何其他过滤器应用于子查询,否则 or 可能会收集所有记录。
$query = Activity::whereNotNull('id');
$count = 0;
foreach ($this->Reporter()->get() as $service) {
$condition = ($count == 0) ? "where" : "orWhere";
$query->$condition(function ($query) use ($service) {
$query->where('branch_id', '=', $service->branch_id)
->where('activity_type_id', '=', $service->activity_type_id)
->whereBetween('activity_date_time', [$this->start_date, $this->end_date]);
});
$count++;
}
return $query->get();
使用 Eloquent 可以很容易地创建多个 where 检查:
第一:(使用简单的where)
$users = User::where('name', $request['name'])
->where('surname', $request['surname'])
->where('address', $request['address'])
...
->get();
第二:(将您的位置分组到数组中)
$users = User::where([
['name', $request['name']],
['surname', $request['surname']],
['address', $request['address']],
...
])->get();
您还可以在其中使用条件(=、<> 等),如下所示:
$users = User::where('name', '=', $request['name'])
->where('surname', '=', $request['surname'])
->where('address', '<>', $request['address'])
...
->get();
你可以在 Laravel 5.3 中使用 eloquent
所有结果
UserModel::where('id_user', $id_user)
->where('estado', 1)
->get();
部分结果
UserModel::where('id_user', $id_user)
->where('estado', 1)
->pluck('id_rol');
根据我的建议,如果您正在进行过滤或搜索
那么你应该去:
$results = User::query();
$results->when($request->that, function ($q) use ($request) {
$q->where('that', $request->that);
});
$results->when($request->this, function ($q) use ($request) {
$q->where('this', $request->that);
});
$results->when($request->this_too, function ($q) use ($request) {
$q->where('this_too', $request->that);
});
$results->get();
您可以通过多种方式使用,
$results = User::where([
['column_name1', '=', $value1],
['column_name2', '<', $value2],
['column_name3', '>', $value3]
])->get();
你也可以这样使用,
$results = User::orderBy('id','DESC');
$results = $results->where('column1','=', $value1);
$results = $results->where('column2','<', $value2);
$results = $results->where('column3','>', $value3);
$results = $results->get();
您可以在 where 子句中使用数组,如下所示。
$result=DB::table('users')->where(array(
'column1' => value1,
'column2' => value2,
'column3' => value3))
->get();
DB::table('users')
->where('name', '=', 'John')
->orWhere(function ($query) {
$query->where('votes', '>', 100)
->where('title', '<>', 'Admin');
})
->get();
用这个
$users = DB::table('users')
->where('votes', '>', 100)
->orWhere('name', 'John')
->get();
代码示例。
首先 :
$matchesLcl=[];
使用所需的条件计数/循环在此处填充数组,增量:
$matchesLcl['pos']= $request->pos;
$matchesLcl['operation']= $operation;
//+......+
$matchesLcl['somethingN']= $valueN;
并进一步使用像这种收缩表达这样的雄辩:
if (!empty($matchesLcl))
$setLcl= MyModel::select(['a', 'b', 'c', 'd'])
->where($matchesLcl)
->whereBetween('updated_at', array($newStartDate . ' 00:00:00', $newEndDate . ' 23:59:59'));
else
$setLcl= MyModel::select(['a', 'b', 'c', 'd'])
->whereBetween('updated_at', array($newStartDate . ' 00:00:00', $newEndDate . ' 23:59:59'));
使用纯 Eloquent,像这样实现它。此代码返回其帐户处于活动状态的所有登录用户。 $users = \App\User::where('status', 'active')->where('logged_in', true)->get();
如果你的条件是这样的(匹配单个值),一个简单更优雅的方法是:
$results = User::where([
'this' => value,
'that' => value,
'this_too' => value,
...
])
->get();
但是如果您需要 OR 子句,请确保为每个 orWhere() 子句重复必须满足条件。
$player = Player::where([
'name' => $name,
'team_id' => $team_id
])
->orWhere([
['nickname', $nickname],
['team_id', $team_id]
])
我们使用该指令根据用户分类类型和用户名两个条件获取用户。
在这里,除了从配置文件表中获取用户信息以减少查询数量外,我们还使用两个条件在您键入时进行过滤。
$users = $this->user->where([
['name','LIKE','%'.$request->name.'%'],
['trainers_id','=',$request->trainers_id]
])->with('profiles')->paginate(10);
您可以按照以下方式进行操作,这是最短的方法。
$results = User::where(['this'=>1,
'that'=>1,
'this_too'=>1,
'that_too'=>1,
'this_as_well'=>1,
'that_as_well'=>1,
'this_one_too'=>1,
'that_one_too'=>1,
'this_one_as_well'=>1,
'that_one_as_well'=>1])->get();
在 Eloquent 中,你可以试试这个:
$results = User::where('this', '=', 1)
->orWhere('that', '=', 1)
->orWhere('this_too', '=', 1)
->orWhere('that_too', '=', 1)
->orWhere('this_as_well', '=', 1)
->orWhere('that_as_well', '=', 1)
->orWhere('this_one_too', '=', 1)
->orWhere('that_one_too', '=', 1)
->orWhere('this_one_as_well', '=', 1)
->orWhere('that_one_as_well', '=', 1)
->get();
public function search()
{
if (isset($_GET) && !empty($_GET))
{
$prepareQuery = '';
foreach ($_GET as $key => $data)
{
if ($data)
{
$prepareQuery.=$key . ' = "' . $data . '" OR ';
}
}
$query = substr($prepareQuery, 0, -3);
if ($query)
$model = Businesses::whereRaw($query)->get();
else
$model = Businesses::get();
return view('pages.search', compact('model', 'model'));
}
}
$variable = array('this' => 1,
'that' => 1
'that' => 1,
'this_too' => 1,
'that_too' => 1,
'this_as_well' => 1,
'that_as_well' => 1,
'this_one_too' => 1,
'that_one_too' => 1,
'this_one_as_well' => 1,
'that_one_as_well' => 1);
foreach ($variable as $key => $value) {
User::where($key, '=', $value);
}
=
。WHERE (a IS NOT NULL AND b=1) OR (a IS NULL AND b=2);
?$users = DB::table('users')->where([ ['status', '=', '1'], ['subscribed', '<>', '1'], ])->get();
whereNotIn
包含在其他where
条款中?