Laravel 5将OR条件与BETWEEN一起使用 [英] Laravel 5 using OR condition with BETWEEN

问题描述

有人可以帮我在laravel中建立下面的查询吗?口才我真的很困惑使用 OR 条件和之间

Hi can anyone help me building below query in laravel Eloquent i am really confuse in using OR condition with between

SELECT * FROM tbl WHERE
existing_start BETWEEN $newSTart AND $newEnd OR
$newStart BETWEEN existing_start AND existing_end

我尝试使用

whereBetween('existing_start',[$newSTart,$newEnd])

但不知道如何使用OR

but have no idea how to use OR

推荐答案

查询生成器提供了一种orWhereBetween方法，但 Laravel API文档中找到它.

There is an orWhereBetween method available from the Query Builder, but it is undocumented in the Query Builder Documentation. You can however find it in the Laravel API Documentation.

以下说明假定变量具有以下值:

The explanations below assume that the variables have the following values:

$newStart = '1';
$newEnd = '10';

---

不幸的是，将orWhereBetween用作第二个条件不适用于您的情况，因为whereBetween和orWhereBetween都将检查列值是否在两个输入值之间.从您的第一个条件开始就可以了，因为它会检查existing_start列的值是否在$newStart和$newEnd之间.这样就可以了:

---

Unfortunatelly, using orWhereBetween for the second condition is not applicable in your case, because both whereBetween and orWhereBetween will check if a column value is between two input values. This is fine from your first condition since it checks if the existing_start column value is between $newStart and $newEnd. So this is fine:

->whereBetween('existing_start', [$newStart, $newEnd])

它将被编译为:

WHERE `existing_start` BETWEEN '1' AND '10'

但是，您的第二个条件要检查$newStart的输入值是否在两个列值existing_start和existing_end之间，并且没有Query Builder方法可以执行此操作.所以这行不通:

However your second condition wants to check if an input value from $newStart is between two column values existing_start and existing_end, and there is no Query Builder method that does that. So this will not work:

->orWhereBetween($newStart, ['existing_start', 'existing_end'])

因为它将被编译为:

OR `1` BETWEEN 'existing_start' AND 'existing_end'

请注意1周围的反引号`，因为MySQL会尝试查找名为1的列并抛出错误.

Notice the backticks ` around 1, because of that MySQL will try to find a column named 1 and throw an error.

所以最好的选择是将orWhereRaw与这样的绑定一起使用:

So the best option here is to use orWhereRaw with bindings like this:

DB::table('tbl')
  ->whereBetween('existing_start', [$newStart, $newEnd])
  ->orWhereRaw('? BETWEEN existing_start AND existing_end', [$newStart])
  ->get();

?将替换为$newStart的值，该值将正确加引号并转义以避免SQL注入.

The ? will be replaced by the value of $newStart which will be properly quoted and escaped to avoid SQL injection.

或者当然，总是可以选择两个分组条件来检查边界，这等同于您的BETWEEN条件:

Or course there is always the option of having two grouped conditions that check the boundaries, which would be equivalent to your BETWEEN condition:

DB::table('tbl')
  ->whereBetween('existing_start', [$newStart, $newEnd])
  ->orWhere(function ($query) use ($newStart) {
      $query->where('existing_start', '<=', $newStart);
      $query->where('existing_end', '>=', $newStart);
  })->get();

将编译为:

SELECT * FROM `tbl`
WHERE
  `existing_start` BETWEEN '1' AND '10' OR
  (`existing_start` <= '1' AND `existing_end` >= '1')

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