Inline variable in the Play framework 2.x Scala template - scala

Question

How to create an inline variable in the Play framework 2.x Scala template?
Path from the Play's guide is not clear to me:
#defining(user.firstName + " " + user.lastName) { fullName =>
<div>Hello #fullName</div>
}

Answer 1

First you don't create a variable but a value meaning it's read only.
In your example you have created a value fullName which is accessible inside the curly brackets.
#defining("Farmor") { fullName =>
<div>Hello #fullName</div>
}
Will print Hello Farmor
To define a value which is accessible globally in your template just embrace everything with your curly brackets.
E.g.
#defining("Value") { formId =>
#main("Title") {
#form(routes.Application.addPost, 'id -> formId) {
#inputText(name = "content", required = true)
<input type="submit" value="Create">
}
}
}
In the example you can use the value formId anywere.

Answer 2

If you don't want to use the #defining syntax you can define a reusable block which will be evaluated every time you use it:
#fullName = #{
user.firstName + " " + user.lastName
}
<div>Hello #fullName</div>
With this same syntax you can also pass arguments to the block:
https://github.com/playframework/Play20/blob/master/samples/scala/computer-database/app/views/list.scala.html

Answer 3

It's easy, span your block with code from the sample, then you will can use #fullName variable which has value:
user.firstName + " " + user.lastName