object attr extends AttrHelper[Box]
Used to get an attribute by its name. There are several means to getting attributes:
// Get a Box for the attribute: val myAttr = S.attr("test") openOr "Not found" // Get an attribute or return a default value: val myAttr = S.attr("name", "Fred") // Apply a transform function on the attribute value, or return an Empty: val pageSize = S.attr("count", _.toInt) openOr 20 // There are also prefixed versions: val prefixedAttr = S.attr("prefix", "name") openOr "Not found"
Note that this uses the data held in S.attrs, which means that it will find attributes through the entire snippet nesting stack. For example, given the snippets:
<lift:MyStuff.snippetA foo="bar"> <lift.MyStuff.snippetB>...</lift.MyStuff.snippetB> </lift:MyStuff.snippetA>
Calling S.attr("foo")
from snippetB will return
Full("bar")
.
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type
Info = String
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def
apply[T](prefix: String, key: String, f: (Info) ⇒ T, default: ⇒ T): T
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def
apply[T](key: String, f: (Info) ⇒ T, default: ⇒ T): T
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def
apply[T](prefix: String, key: String, f: (Info) ⇒ T): Box[T]
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def
apply[T](key: String, f: (Info) ⇒ T): Box[T]
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def
apply(prefix: String, key: String, default: ⇒ Info): Info
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def
apply(key: String, default: ⇒ Info): Info
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def
apply(prefix: String, key: String): Box[Info]
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def
apply(key: String): Box[Info]
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def
findAttr(prefix: String, key: String): Option[Info]
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def
findAttr(key: String): Option[Info]
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def
~(prefix: String, key: String): Option[NodeSeq]
Returns the prefixed attribute value as an Option[NodeSeq] for easy addition to the attributes
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def
~(key: String): Option[NodeSeq]
Returns the unprefixed attribute value as an Option[NodeSeq] for easy addition to the attributes