将布尔值传递给 Laravel 中的视图
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Pass a boolean to a view in Laravel
提问by Lucien Dubois
What I try to do:
我尝试做的事情：
I try to pass a boolean to my view to to check if it is true or not. If it is set to true, I want to add a class. I use Laravel. Actually, here is my situation:
我尝试将一个布尔值传递给我的视图以检查它是否为真。如果设置为true，我想添加一个类。我使用 Laravel。其实我的情况是这样的：
- The .red class is added to all rows
- $finances->depense always return 1 even if it says 0 in the database
- .red 类被添加到所有行
- $finances->depense 总是返回 1，即使它在数据库中显示为 0
Here is my code:
这是我的代码：
index.blade.php
index.blade.php
@foreach($finances as $finance)
@if ($finance->depense = 1)
<tr class="red">
@elseif ($finance->depense = 0)
<tr>
@endif
<td><a href="{{ URL::to('finances/' . $finance->id) }}">{{$finance->description}}</a></td>
<td>{{ $finance->depense }}</td>
<td>{{ $finance->prix }}</td>
<td>{{ $finance->tps }}</td>
<td>{{ $finance->tvq }}</td>
<td>{{ $finance->grandtotal }}</td>
</tr>
@endforeach
FinancesController.php
财务控制器.php
public function index()
{
$finances = Finance::all();
return View::make('finances.index')->withFinances($finances);
}
What is wrong?
怎么了？
回答by Lucien Dubois
The answer was finally very simple..
答案终于很简单了..
Instead of
代替
@if ($finance->depense = 1)
<tr class="red">
@elseif ($finance->depense = 0)
<tr>
@endif
I changed the expression from =(Assignment Operator)to ==(Equal)
我将表达式从(Assignment Operator)更改为(Equal)===
@if ($finance->depense == 1)
<tr class="red">
@else
<tr>
@endif
Don't forget to use double equal to compare.
不要忘记使用 double 等于进行比较。
回答by undefined variable
I could be wrong but I thought you don't need to do comparison with boolean value for a condition check, as it defaults to true.
我可能是错的，但我认为您不需要与布尔值进行比较以进行条件检查，因为它默认为 true。
@if ($finance->depense)
<tr class="red">
@else
<tr>
@endif
If you want to check for false add the '!'
如果您想检查错误，请添加“！”
@if (!$finance->depense)
<tr class="red">
@else
<tr>
@endif
