attr

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").

Linear Supertypes

AttrHelper[Box], AnyRef, Any

Type Members

type Info = String

Definition Classes
attr → AttrHelper

Value Members

final def !=(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def ##(): Int

Definition Classes
AnyRef → Any
final def ==(arg0: Any): Boolean

Definition Classes
AnyRef → Any
def apply[T](prefix: String, key: String, f: (Info) ⇒ T, default: ⇒ T): T

Definition Classes
AttrHelper
def apply[T](key: String, f: (Info) ⇒ T, default: ⇒ T): T

Definition Classes
AttrHelper
def apply[T](prefix: String, key: String, f: (Info) ⇒ T): Box[T]

Definition Classes
AttrHelper
def apply[T](key: String, f: (Info) ⇒ T): Box[T]

Definition Classes
AttrHelper
def apply(prefix: String, key: String, default: ⇒ Info): Info

Definition Classes
AttrHelper
def apply(key: String, default: ⇒ Info): Info

Definition Classes
AttrHelper
def apply(prefix: String, key: String): Box[Info]

Definition Classes
AttrHelper
def apply(key: String): Box[Info]

Definition Classes
AttrHelper
final def asInstanceOf[T0]: T0

Definition Classes
Any
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( ... )
def convert[T](in: Option[T]): Box[T]

Attributes
protected
Definition Classes
attr → AttrHelper
final def eq(arg0: AnyRef): Boolean

Definition Classes
AnyRef
def equals(arg0: Any): Boolean

Definition Classes
AnyRef → Any
def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] )
def findAttr(prefix: String, key: String): Option[Info]

Attributes
protected
Definition Classes
attr → AttrHelper
def findAttr(key: String): Option[Info]

Attributes
protected
Definition Classes
attr → AttrHelper
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
def hashCode(): Int

Definition Classes
AnyRef → Any
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toString(): String

Definition Classes
AnyRef → Any
final def wait(): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long, arg1: Int): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
def ~(prefix: String, key: String): Option[NodeSeq]

Returns the prefixed attribute value as an Option[NodeSeq] for easy addition to the attributes
def ~(key: String): Option[NodeSeq]

Returns the unprefixed attribute value as an Option[NodeSeq] for easy addition to the attributes

Related Doc: package S

object attr extends AttrHelper[Box]

Type Members

type Info = String

Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

def apply[T](prefix: String, key: String, f: (Info) ⇒ T, default: ⇒ T): T

def apply[T](key: String, f: (Info) ⇒ T, default: ⇒ T): T

def apply[T](prefix: String, key: String, f: (Info) ⇒ T): Box[T]

def apply[T](key: String, f: (Info) ⇒ T): Box[T]

def apply(prefix: String, key: String, default: ⇒ Info): Info

def apply(key: String, default: ⇒ Info): Info

def apply(prefix: String, key: String): Box[Info]

def apply(key: String): Box[Info]

final def asInstanceOf[T0]: T0

def clone(): AnyRef

def convert[T](in: Option[T]): Box[T]

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def finalize(): Unit

def findAttr(prefix: String, key: String): Option[Info]

def findAttr(key: String): Option[Info]

final def getClass(): Class[_]

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

final def synchronized[T0](arg0: ⇒ T0): T0

def toString(): String

final def wait(): Unit

final def wait(arg0: Long, arg1: Int): Unit

final def wait(arg0: Long): Unit

def ~(prefix: String, key: String): Option[NodeSeq]

def ~(key: String): Option[NodeSeq]

Inherited from AttrHelper[Box]

Inherited from AnyRef

Inherited from Any

Ungrouped