scala - Scala template: tags with increasing id

Question

I am new to the play framework and scala templates. I have to loop through a map, and create an input tag for each element, with ascenting tag id. So what I want to have in my resulting html is something like the following:

<li><input id="option1" type="checkbox"/><label for="option1">sometext</label></li>
<li><input id="option2" type="checkbox"/><label for="option2">sometext</label></li>
<li><input id="option3" type="checkbox"/><label for="option3">sometext</label></li>

The amount of inputs is dynamic, and their id needs to be ascending.

This is what I currently have, just looping through the map:

@for(c <- frage.getAllChoices){
    <li><input id="option1" type="checkbox"/><label for="option1">@c.getText()</label</li>
}

I tried using #define, but i can't change the value afterwards: it just prints the expression. And afaik creating a variable with "var" is not possible in play scala templates.

Answer 1

实际上，在您的情况下，它应该是对象的 ID，而不仅仅是递增的值，不是吗？

无论如何，如果您只需要增加值，则可以使用zipWithIndex ，如此处所示，即

@for((c, index) <- frage.getAllChoices.zipWithIndex) {
    ...
}