Question

我找不到如何在可重用块中插入变量的方法。我没试过就试过这个：

@headers = @{
    page match {
        case "home" => Map(
                "title" -> "Welcome",
                "description" -> "Welcome to our site")
        case "profile" => Map(
                "title" -> "@user.name - @site.name",
                "description" -> "Hello @user.name")
        }
    }


@headers = @{
    page match {
        case "home" => Map(
            "title" -> "Welcome",
            "description" -> "Welcome to our site")
        case "profile" => Map(
            "title" -> user.name + "-" site.name,
            "description" -> "Hello" + user.name)
    }
}

Answer 1

您应该将变量作为参数传递：

@headers(user:User,site:Site) = @{
    page match {
        case "home" => Map(
            "title" -> "Welcome",
            "description" -> "Welcome to our site")
        case "profile" => Map(
            "title" -> user.name + "-" site.name,
            "description" -> "Hello" + user.name)
    }
}

注意：我猜到了user和site的类型。当然，你需要改变它们。

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如何在Play Framework 2（Scala）中的可重用块中使用变量

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