Question

I’ve just got started with Play2 and I’m struggling with scala.

In a view I’ve got this simple form helper to create a news item.

@textarea(
  newsItemForm("content"),
  '_label -> "Content",
  'rows -> 3,
  'cols -> 50,
)

Now I’d like to add a data-wysiwyg to the attributes, but since it contains a – scala complains about – not being a member of Symbol.

since ' is just a nice way of writing Symbol(“data-wysiwyg”) I can get it working, but then my views will look ugly with some attributes beeing specified with Symbol and others with '

My question is: is there a way to use the scala ' notation for html5 data- attributes?

Answer 1

I don’t think it’s possible because the dash will be interpreted as a minus sign. If the matter is to shorten the declaration, why not add a method s to strings to produce the corresponding symbol (akin to the r method for producing regexp) ?

class SymbolString( str: String ) {
  def s = Symbol(str)
}

implicit def str2symstr( str: String ) = new SymbolString(str)

scala> "hello".s
res20: Symbol = 'hello

scala> "data-wysiwyg".s
res21: Symbol = 'data-wysiwyg