Lift (Scala) nested snippets (multiple items per day)
Trying to get started with Scala by playing around with the Lift framework and I'm having trouble creating what I imagined would be typify a common scenario: I have a list of days and for each day a list of items for that day (nested lists).
My thought was to take this approach:
<div class="lift:DaySnippet">
<h1 class="day">Name of Day</h1>
<ul class="day-items">
<!-- wanted to have a separate snippet but haven't made it work -->
<!-- <li class="lift:DayItemSnippet">Item content</li> -->
<li class="item">
<span class="name">Name</span>
<span class=开发者_Go百科"desc">Description</span>
</li>
</ul>
</div>
Originally I wasn't going to have the inner snippet but thought that made sense.
So I can define a snippet like this:
class DaySnippet {
// Ignoring that this is a stupid way to define the data
val days = ("Monday", ("Item 1", "Item 1 Description") :: Nil) ::
("Tuesday", ("Item 2", "Item 2 Description") ::
("Item 3", "Item 3 Description") :: Nil) :: Nil;
def render = {
// EDIT: Original code was broken, this is what I was trying to show
"* *" #> days.map { case (day, items) => ".day *" #> day }
}
}
At any rate, I'm looking for some documents or examples of either nesting snippets and/or how to iterate over nested collections and use CssSels to modify the whole NodeSeq as we go.
I'd be happy to add any additional information that might clarify.
I came up with some code to do what I wanted, but I'm not sure it's optimal so suggestions are welcome:
class DaySnippet {
// Ignoring that this is a stupid way to define the data
val days = ("Monday", ("Item 1", "Item 1 Description") :: Nil) ::
("Tuesday", ("Item 2", "Item 2 Description") ::
("Item 3", "Item 3 Description") :: Nil) :: Nil;
def render = {
"* *" #> days.map { case (day, items) =>
".day *" #> day & ".item *" #> item.map {
case (name, desc) =>
".name *" #> name * ".desc *" #> desc
}
}
}
}
Here good discussion, using S.attr to get index of nested snippet is described.
精彩评论