I develop application on play framework 2.2 I have a routes file like this:
GET /posting/ controllers.posting.BlogController.allPosts()
GET /posting/:number controllers.posting.BlogController.allPosts(number: Int)
And BlogContriller:
object BlogController extends Controller {
def allPosts(pageNumber:Int = 1, postsPerPage:Int = 10) = Action{
val posts = Post.getLastNPosts(postsPerPage, postsPerPage*(pageNumber-1))
val htmlPosts = new Html(new StringBuilder());
for (post <- posts){
val htmlPost = views.html.posting.post(post.getName, post.getText, post.getDate.toString)
htmlPosts += htmlPost;
}
Ok(views.html.posting.index(htmlPosts))
}
}
When I try to comile that, I give a error:
Error:(14, -1) Play 2 Compiler: C:\...\conf\routes:14: Compilation error[Using different overloaded methods is not allowed. If you are using a single method in combination with default parameters, make sure you declare them all explicitly.]
GET /posting/:number controllers.posting.BlogController.allPosts(number: Int)
And I can't understand how to fix that. Can anyone help me?
You can must use parameter with default value:
GET /posting/ controllers.posting.BlogController.allPosts(number: Int = 1)
GET /posting/:number controllers.posting.BlogController.allPosts(number: Int)
You may not use overloaded methods allPosts(Int)
and allPosts
. Since you declared allPosts
with two parameters with default values, Scala sees this method as 4 different methods. You may only use one of them.
You must have all the parameters defined for same function. In your case allPosts
. Give a default value for routes where you don't need that parameter.
GET /posting/ controllers.posting.BlogController.allPosts(number: Int ?= 0)
GET /posting/:number controllers.posting.BlogController.allPosts(number: Int)
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