我正在使用Scala Play 2.7.x(您可以在play-silhouette-seed googleauth branch处签出项目),并且我将表单定义为:
object TotpSetupForm {
val form = Form(
mapping(
"sharedKey" -> nonEmptyText,
"scratchCodes" -> seq(mapping(
"hasher" -> nonEmptyText,
"password" -> nonEmptyText,
"salt" -> optional(nonEmptyText)
)(PasswordInfo.apply)(PasswordInfo.unapply)),
"scratchCodesPlain" -> optional(seq(nonEmptyText)),
"verificationCode" -> nonEmptyText(minLength = 6, maxLength = 6)
)(Data.apply)(Data.unapply)
)
case class Data(
sharedKey: String,
scratchCodes: Seq[PasswordInfo],
scratchCodesPlain: Option[Seq[String]],
verificationCode: String = "")
}
PasswordInfo
来自Play-Silhouette的地方,看起来像:
case class PasswordInfo(
hasher: String,
password: String,
salt: Option[String] = None
) extends AuthInfo
在我的控制器中,填充表单,并将其作为参数传递给我的视图模板,如下所示。请注意,我已经调试了它,并且totpInfo.scratchCodes
有5个值,并且表格已正确填充:
val formData = TotpSetupForm.form.fill(TotpSetupForm.Data(totpInfo.sharedKey, totpInfo.scratchCodes, totpInfo.scratchCodesPlain))
Ok(views.html.someView(formData, ...)
我按如下所示渲染视图,请注意,我确实读过the Scala Forms Repeated Values documentation note :)
@helper.form(action = controllers.routes.TotpController.submit()) {
@helper.CSRF.formField
@b3.text(totpForm("verificationCode"), '_hiddenLabel -> messages("verificationCode"), 'placeholder -> messages("verificationCode"), 'autocomplete -> "off", 'class -> "form-control input-lg")
@b3.hidden(totpForm("sharedKey"))
@helper.repeatWithIndex(totpForm("scratchCodes"), min = 1) { (scratchCodeField, index) =>
@b3.hidden(scratchCodeField, '_label -> ("scratchCode #" + index))
}
<div class="form-group">
<div>
<button id="submit" type="submit" value="submit" class="btn btn-lg btn-primary btn-block">@messages("verify")</button>
</div>
</div>
}
即使正确地填充了表格的scratchCodes序列,每个序列值仍呈现为空:
<input type="hidden" name="scratchCodes[0]" value="" >
<input type="hidden" name="scratchCodes[1]" value="" >
<input type="hidden" name="scratchCodes[2]" value="" >
<input type="hidden" name="scratchCodes[3]" value="" >
<input type="hidden" name="scratchCodes[4]" value="" >
序列中的字段数正确。
我也尝试使用@helper.repeat
替代方法,甚至使用@helper.input
代替@b3.hidden
,只是为了确保结果始终相同...我得到空值{ {1}}个元组已呈现。
我该如何解决?
答案 0 :(得分:0)
确定是罪魁祸首:重复+嵌套值需要像这样分别访问每个属性:
@helper.repeat(totpForm("scratchCodes"), min = 1) { scratchCodeField =>
@b3.hidden(scratchCodeField("hasher"))
@b3.hidden(scratchCodeField("password"))
@b3.hidden(scratchCodeField("salt"))
}
然后可以正常工作,并且发布请求可以正确填充PasswordInfo
UDT的序列。