斯卡拉播放！ 形式+动态路线

Question

As for now i had my url look like this: /chart?phrase=xxx

I wanted to prettify it, so i've created a route:

GET     /chart/:phrase          controllers.Application.chart(phrase: String)

Here's my old form:

@form(routes.Application.chart) {

    @inputText(tagForm("phrase"), 'placeholder -> "Phrase") 

    <input type="submit" value="Search for phrase">
}

But compiler returns errors about missing parameters in form(call). How can i make this work?

Please notice, that i'm using custom class "tagForm".

Answer 1

change your url to

GET     /chart/:phrase          controllers.Application.chart(phrase: String)

and at your template

 routes.Application.chart("phraseValue")

now url looks like

/chart/pharseValue

Answer 2

Edit : It wasn't clear that you didn't want query parameters, so have a look at the Reverse routing section of the Play Documentation .

---

Query parameters aren't included in the route URI. There are two ways you can use them. One requires a default value, and the other uses an Option , depending on what suits your needs.

#  Defaults to an empty string if the query parameter is not in the URL.
GET     /chart         controllers.Application.chart(phrase: String ?= "")

#  Defaults to `None` if the query parameter is not in the URL.
GET     /chart          controllers.Application.chart(phrase: Option[String])

The reverse routes would work as such:

// Routes with default values
routes.Application.chart("test")    // Outputs /chart?phrase=test
routes.Application.chart()    // Outputs /chart

// Routes using `Option`
routes.Application.chart(Some("test"))    // Outputs /chart?phrase=test
routes.Application.chart(None)    // Outputs /chart

Answer 3

I've found a solution. Maybe it's not perfect, but suits my needs.

To have pretty URLs when submitting a form I created two Routes:

GET     /chart/:phrase          controllers.Application.chart(phrase: String)
GET     /getResult              controllers.Application.getResult

And two Actions:

def chart(query: String) = Action { implicit request =>
    tagForm.bind(Map("phrase"->query)).fold(error,success)
}

def getResult = Action { implicit request =>
tagForm.bindFromRequest.fold(
  errors => BadRequest(...),
    req => {
      ...
      Redirect(routes.Application.chart(string))
    }
  )
}

And in form: @form(routes.Application.getResult)

Form submits tagForm to getResult, where after validation it redirects to pretty url.