20090522 Scalaユーザー会#1

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• <lift:helloWorld.howdy /> class HelloWorld {   def howdy = Welcome to helloworld at  {new _root_.java.util.Date} } 2009 5 22

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•   <lift:helloWorld.howdy /> 2009 5 22

• class HelloWorld {   def howdy =                  Welcome to helloworld at           {new _root_.java.util.Date}        } 2009 5 22

• <lift:SampleSnipet.add form=quot;POSTquot;>     <entry:description />      <entry:amount /> <br />     <entry:submit /> </lift: SampleSnipet.add > 2009 5 22

• class SampleSnipet     def add (xhtml : NodeSeq) : NodeSeq = {         var desc = quot;quot;         var amount = quot;0quot;         def processEntryAdd () { ... }         bind(quot;entryquot;, xhtml,             quot;descriptionquot; -> SHtml.text(desc, desc = _),             quot;amountquot; -> SHtml.text(amount, amount = _),             quot;submitquot; -> SHtml.submit(Add,                    processEntryAdd))     } } 2009 5 22

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• class Expense extends LongKeyedMapper[Expense] with IdPK {    def getSingleton = Expense    object dateOf extends MappedDateTime(this)    object description extends MappedString(this,100)    object amount extends MappedDecimal(this,          MathContext.DECIMAL64, 2)    object account extends        MappedLongForeignKey(this, Account) } 2009 5 22

• object Expense extends Expense with  LongKeyedMetaMapper[Expense] { override def fieldOrder =       List(dateOf, description, amount) } 2009 5 22

• val myEntries1 = Expense.findAll   val myEntries2 = Expense.findAll(By_>(Expense.amout,5) )  val recentEntries = Expense.findAll(   BySql(quot;dateOf > (CURRENT_DATE - interval ’30 days’)quot;,   IHaveValidatedThisSQL(quot;dchenbeckerquot;,quot;2008-12-03quot;)) 2009 5 22

• var myEntr= Expense.create myEntry.dateOf(new Date).description(quot;A sample entryquot;) myEntry.amount(BigDecimal(quot;127.20quot;)) myEntry.save myEntry.delete 2009 5 22

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20090522 Scalaユーザー会#1

by Tomohito Ozaki on May 23, 2009

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