在播放框架中填充 html 下拉列表 [英] Populate a html drop down list in play framework

问题描述

可能的重复:
在 Play Framework 2.0 模板中使用选项助手

普通的html代码:

                        <select id = "game_duration">          
                        <option>01 hour</option>
                        <option>02 hour</option>
                        <option>03 hour</option>
                        <option>04 hour</option>
                        <option>05 hour</option>
                        <option>Never end</option>
                        </select>

到 @select 的 Play 框架...
我尝试遵循教程，但它只打印了@的纯html选择标签..
我是新手，所以有人可以帮助我吗?
非常感谢.

To @select of Play framework...
I tried following Tutorial but it only printed plain html of the @select tag..
I'm new to play thus can anyone please help me?
Thank you very much.

推荐答案

First import helper package(s) at the start of your view:

First import helper package(s) at the beginning of your view:

@import helper._

因此您可以使用该示例:

So you can use that sample:

@select(
   gameForm("game_duration"),
   options(Seq("01 hour","02 hour","03 hour","Never end")),
   '_label -> "Game duration", '_default -> "-- Select duration --"
)

或者，您也可以使用该代码而无需事先导入helper 包

Alternatively you can also use that code without previous importing helper package(s)

@helper.select(
   gameForm("game_duration"),
   helper.options(Seq("01 hour","02 hour","03 hour","Never end")),
   '_label -> "Game duration", '_default -> "-- Select duration --"
)

重要: 尝试使用 options(List("01 hours","02 hours","03 hours","Never end")) 如果 Seq(...) 版本在编译时会失败.

important: Try to use options(List("01 hour","02 hour","03 hour","Never end")) if Seq(...) version will fail while compiling.

顺便说一句，很可能使用数值会更好(即 int - 更容易在 DB 中存储和搜索):

btw, most probably it would be better using numeric values (ie int - easier to store and search in DB):

...
helper.options("60" -> "01 hour","120" -> "02 hour","180" -> "03 hour", "9999" -> "Never end"),
...

另请查看此答案以获取更多示例

Also check this answer for more samples

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