diff --git a/lib/scalatra-forms_2.10-0.0.1.jar b/lib/scalatra-forms_2.10-0.0.1.jar
new file mode 100644
index 0000000..1720a2b
--- /dev/null
+++ b/lib/scalatra-forms_2.10-0.0.1.jar
Binary files differ
diff --git a/sbt.bat b/sbt.bat
index 6949ebb..9a0b378 100644
--- a/sbt.bat
+++ b/sbt.bat
@@ -1,2 +1,2 @@
 set SCRIPT_DIR=%~dp0
-java -XX:+CMSClassUnloadingEnabled -XX:MaxPermSize=256m -Xmx512M -Xss2M -jar "%SCRIPT_DIR%\sbt-launch-0.12.3.jar" %*
+java -Dhttp.proxyHost=proxy.intellilink.co.jp -Dhttp.proxyPort=8080 -XX:+CMSClassUnloadingEnabled -XX:MaxPermSize=256m -Xmx512M -Xss2M -jar "%SCRIPT_DIR%\sbt-launch-0.12.3.jar" %*
diff --git a/src/main/scala/app/CreateRepositoryServlet.scala b/src/main/scala/app/CreateRepositoryServlet.scala
index acdfe29..11af093 100644
--- a/src/main/scala/app/CreateRepositoryServlet.scala
+++ b/src/main/scala/app/CreateRepositoryServlet.scala
@@ -1,12 +1,12 @@
 package app
 
 import util.Directory._
-import util.Validations._
 import org.scalatra._
 import java.io.File
 import org.eclipse.jgit.api.Git
 import org.eclipse.jgit.lib._
 import org.apache.commons.io._
+import jp.sf.amateras.scalatra.forms._
 
 /**
  * Creates new repository.
diff --git a/src/main/scala/app/ServletBase.scala b/src/main/scala/app/ServletBase.scala
index b8a35b3..fed9331 100644
--- a/src/main/scala/app/ServletBase.scala
+++ b/src/main/scala/app/ServletBase.scala
@@ -1,16 +1,15 @@
 package app
 
-import util.Validations._
-
 import org.scalatra._
 import org.scalatra.json._
 import org.json4s._
 import org.json4s.jackson._
+import jp.sf.amateras.scalatra.forms._
 
 /**
  * Provides generic features for ScalatraServlet implementations.
  */
-abstract class ServletBase extends ScalatraServlet with JacksonJsonSupport {
+abstract class ServletBase extends ScalatraServlet with ClientSideValidationFormSupport with JacksonJsonSupport {
   
   implicit val jsonFormats = DefaultFormats
   
@@ -19,31 +18,6 @@
   // TODO get from session
   val LoginUser = System.getProperty("user.name")
   
-  def get[T](path: String, form: MappingValueType[T])(action: T => Any) = {
-    super.get(path){
-      withValidation(form, params){ obj: T =>
-        action(obj)
-      }
-    }
-    registerValidate(path, form)
-  }
-
-  def post[T](path: String, form: MappingValueType[T])(action: T => Any) = {
-    super.post(path){
-      withValidation(form, params){ obj: T =>
-        action(obj)
-      }
-    }
-    registerValidate(path, form)
-  }
-  
-  private def registerValidate[T](path: String, form: MappingValueType[T]) = {
-    super.post(path.replaceFirst("/$", "") + "/validate"){
-      contentType = "application/json"
-      form.validateAsJSON(params)
-    }
-  }
-  
 }
 
 case class Context(path: String)
\ No newline at end of file
diff --git a/src/main/scala/util/Validations.scala b/src/main/scala/util/Validations.scala
deleted file mode 100644
index 0de52f9..0000000
--- a/src/main/scala/util/Validations.scala
+++ /dev/null
@@ -1,325 +0,0 @@
-package util
-
-import org.json4s._
-import org.json4s.jackson._
-
-object Validations {
-  
-  /**
-   * Runs form validation before action.
-   * If there are validation error, action is not invoked and this method throws RuntimeException.
-   * 
-   * @param mapping the mapping definition
-   * @param params the request parameters
-   * @param action the action
-   * @return the result of action
-   */
-  def withValidation[T](mapping: MappingValueType[T], params: Map[String, String])(action: T => Any): Any = {
-    mapping.validate("form", params).isEmpty match {
-      case true  => action(mapping.convert("form", params))
-      case false => throw new RuntimeException("Invalid Request") // TODO show error page?
-    }
-  }
-  
-  /////////////////////////////////////////////////////////////////////////////////////////////
-  // ValueTypes
-  
-  trait ValueType[T] {
-    def convert(name: String, params: Map[String, String]): T
-    def validate(name: String, params: Map[String, String]): Seq[(String, String)]
-  }
-  
-  /**
-   * The base class for the single field ValueTypes.
-   */
-  abstract class SingleValueType[T](constraints: Constraint*) extends ValueType[T]{
-    
-    def convert(name: String, params: Map[String, String]): T = convert(params.get(name).orNull)
-    
-    def convert(value: String): T
-    
-    def validate(name: String, params: Map[String, String]): Seq[(String, String)] = validate(name, params.get(name).orNull)
-    
-    def validate(name: String, value: String): Seq[(String, String)] = validaterec(name, value, Seq(constraints: _*))
-    
-    @scala.annotation.tailrec
-    private def validaterec(name: String, value: String, constraints: Seq[Constraint]): Seq[(String, String)] = {
-      constraints match {
-        case (x :: rest) => x.validate(name, value) match {
-          case Some(message) => Seq(name -> message)
-          case None          => validaterec(name, value, rest)
-        }
-        case Nil => Nil
-        case x => println(x); Nil
-      }
-    }
-    
-  }
-  
-  /**
-   * The base class for the object field ValueTypes.
-   */
-  abstract class MappingValueType[T] extends ValueType[T]{
-
-    def fields: Seq[(String, ValueType[_])]
-    
-    def validate(name: String, params: Map[String, String]): Seq[(String, String)] =
-      fields.map { case (name, valueType) => valueType.validate(name, params) }.flatten
-    
-    def validateAsJSON(params: Map[String, String]): JObject = {
-      JObject(validate("form", params).map { case (key, value) =>
-        JField(key, JString(value))
-      }.toList)
-    }
-  }
-  
-  /**
-   * ValueType for the String property.
-   */
-  def text(constraints: Constraint*): SingleValueType[String] = new SingleValueType[String](constraints: _*){
-    def convert(value: String): String = value
-  }
-  
-  /**
-   * ValueType for the Boolean property.
-   */
-  def boolean(constraints: Constraint*): SingleValueType[Boolean] = new SingleValueType[Boolean](constraints: _*){
-    def convert(value: String): Boolean = value match {
-      case null|"false"|"FALSE" => false
-      case _ => true
-    }
-  }
-  
-  /**
-   * ValueType for the Int property.
-   */
-  def number(constraints: Constraint*): SingleValueType[Int] = new SingleValueType[Int](constraints: _*){
-    
-    def convert(value: String): Int = value match {
-      case null|"" => 0
-      case x => x.toInt
-    }
-    
-    override def validate(name: String, value: String): Seq[(String, String)] = {
-      try {
-        value.toInt
-        super.validate(name, value)
-      } catch {
-        case e: NumberFormatException => Seq(name -> "%s must be a number.".format(name))
-      }
-    }
-  }
-  
-  def mapping[T, P1](f1: (String, ValueType[P1]))(factory: (P1) => T): MappingValueType[T] = new MappingValueType[T]{
-    def fields = Seq(f1)
-    def convert(name: String, params: Map[String, String]) = factory(p(f1, params))
-  }
-  
-  def mapping[T, P1, P2](f1: (String, ValueType[P1]), f2: (String, ValueType[P2]))(factory: (P1, P2) => T): MappingValueType[T] = new MappingValueType[T]{
-    def fields = Seq(f1, f2)
-    def convert(name: String, params: Map[String, String]) = factory(p(f1, params), p(f2, params))
-  }
-
-  def mapping[T, P1, P2, P3](f1: (String, ValueType[P1]), f2: (String, ValueType[P2]), f3: (String, ValueType[P3]))(factory: (P1, P2, P3) => T): MappingValueType[T] = new MappingValueType[T]{
-    def fields = Seq(f1, f2, f3)
-    def convert(name: String, params: Map[String, String]) = factory(p(f1, params), p(f2, params), p(f3, params))
-  }
-  
-  def mapping[T, P1, P2, P3, P4](f1: (String, ValueType[P1]), f2: (String, ValueType[P2]), f3: (String, ValueType[P3]), f4: (String, ValueType[P4]))(factory: (P1, P2, P3, P4) => T): MappingValueType[T] = new MappingValueType[T]{
-    def fields = Seq(f1, f2, f3, f4)
-    def convert(name: String, params: Map[String, String]) = factory(p(f1, params), p(f2, params), p(f3, params), p(f4, params))
-  }
-  
-  def mapping[T, P1, P2, P3, P4, P5](f1: (String, ValueType[P1]), f2: (String, ValueType[P2]), f3: (String, ValueType[P3]), f4: (String, ValueType[P4]), f5: (String, ValueType[P5]))(factory: (P1, P2, P3, P4, P5) => T): MappingValueType[T] = new MappingValueType[T]{
-    def fields = Seq(f1, f2, f3, f4, f5)
-    def convert(name: String, params: Map[String, String]) = factory(p(f1, params), p(f2, params), p(f3, params), p(f4, params), p(f5, params))
-  }
-  
-  def mapping[T, P1, P2, P3, P4, P5, P6](f1: (String, ValueType[P1]), f2: (String, ValueType[P2]), f3: (String, ValueType[P3]), f4: (String, ValueType[P4]), f5: (String, ValueType[P5]), f6: (String, ValueType[P6]))(factory: (P1, P2, P3, P4, P5, P6) => T): MappingValueType[T] = new MappingValueType[T]{
-    def fields = Seq(f1, f2, f3, f4, f5, f6)
-    def convert(name: String, params: Map[String, String]) = factory(p(f1, params), p(f2, params), p(f3, params), p(f4, params), p(f5, params), p(f6, params))
-  }
-  
-  def mapping[T, P1, P2, P3, P4, P5, P6, P7](f1: (String, ValueType[P1]), f2: (String, ValueType[P2]), f3: (String, ValueType[P3]), f4: (String, ValueType[P4]), f5: (String, ValueType[P5]), f6: (String, ValueType[P6]), f7: (String, ValueType[P7]))(factory: (P1, P2, P3, P4, P5, P6, P7) => T): MappingValueType[T] = new MappingValueType[T]{
-    def fields = Seq(f1, f2, f3, f4, f5, f6, f7)
-    def convert(name: String, params: Map[String, String]) = factory(p(f1, params), p(f2, params), p(f3, params), p(f4, params), p(f5, params), p(f6, params), p(f7, params))
-  }
-  
-  def mapping[T, P1, P2, P3, P4, P5, P6, P7, P8](f1: (String, ValueType[P1]), f2: (String, ValueType[P2]), f3: (String, ValueType[P3]), f4: (String, ValueType[P4]), f5: (String, ValueType[P5]), f6: (String, ValueType[P6]), f7: (String, ValueType[P7]), f8: (String, ValueType[P8]))(factory: (P1, P2, P3, P4, P5, P6, P7, P8) => T): MappingValueType[T] = new MappingValueType[T]{
-    def fields = Seq(f1, f2, f3, f4, f5, f6, f7, f8)
-    def convert(name: String, params: Map[String, String]) = factory(p(f1, params), p(f2, params), p(f3, params), p(f4, params), p(f5, params), p(f6, params), p(f7, params), p(f8, params))
-  }
-  
-  def mapping[T, P1, P2, P3, P4, P5, P6, P7, P8, P9](f1: (String, ValueType[P1]), f2: (String, ValueType[P2]), f3: (String, ValueType[P3]), f4: (String, ValueType[P4]), f5: (String, ValueType[P5]), f6: (String, ValueType[P6]), f7: (String, ValueType[P7]), f8: (String, ValueType[P8]), f9: (String, ValueType[P9]))(factory: (P1, P2, P3, P4, P5, P6, P7, P8, P9) => T): MappingValueType[T] = new MappingValueType[T]{
-    def fields = Seq(f1, f2, f3, f4, f5, f6, f7, f8, f9)
-    def convert(name: String, params: Map[String, String]) = factory(p(f1, params), p(f2, params), p(f3, params), p(f4, params), p(f5, params), p(f6, params), p(f7, params), p(f8, params), p(f9, params))
-  }
-  
-  def mapping[T, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10](f1: (String, ValueType[P1]), f2: (String, ValueType[P2]), f3: (String, ValueType[P3]), f4: (String, ValueType[P4]), f5: (String, ValueType[P5]), f6: (String, ValueType[P6]), f7: (String, ValueType[P7]), f8: (String, ValueType[P8]), f9: (String, ValueType[P9]), f10: (String, ValueType[P10]))(factory: (P1, P2, P3, P4, P5, P6, P7, P8, P9, P10) => T): MappingValueType[T] = new MappingValueType[T]{
-    def fields = Seq(f1, f2, f3, f4, f5, f6, f7, f8, f9, f10)
-    def convert(name: String, params: Map[String, String]) = factory(p(f1, params), p(f2, params), p(f3, params), p(f4, params), p(f5, params), p(f6, params), p(f7, params), p(f8, params), p(f9, params), p(f10, params))
-  }
-  
-  def mapping[T, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11](f1: (String, ValueType[P1]), f2: (String, ValueType[P2]), f3: (String, ValueType[P3]), f4: (String, ValueType[P4]), f5: (String, ValueType[P5]), f6: (String, ValueType[P6]), f7: (String, ValueType[P7]), f8: (String, ValueType[P8]), f9: (String, ValueType[P9]), f10: (String, ValueType[P10]), f11: (String, ValueType[P11]))(factory: (P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11) => T): MappingValueType[T] = new MappingValueType[T]{
-    def fields = Seq(f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11)
-    def convert(name: String, params: Map[String, String]) = factory(p(f1, params), p(f2, params), p(f3, params), p(f4, params), p(f5, params), p(f6, params), p(f7, params), p(f8, params), p(f9, params), p(f10, params), p(f11, params))
-  }
-  
-  def mapping[T, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12](f1: (String, ValueType[P1]), f2: (String, ValueType[P2]), f3: (String, ValueType[P3]), f4: (String, ValueType[P4]), f5: (String, ValueType[P5]), f6: (String, ValueType[P6]), f7: (String, ValueType[P7]), f8: (String, ValueType[P8]), f9: (String, ValueType[P9]), f10: (String, ValueType[P10]), f11: (String, ValueType[P11]), f12: (String, ValueType[P12]))(factory: (P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12) => T): MappingValueType[T] = new MappingValueType[T]{
-    def fields = Seq(f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12)
-    def convert(name: String, params: Map[String, String]) = factory(p(f1, params), p(f2, params), p(f3, params), p(f4, params), p(f5, params), p(f6, params), p(f7, params), p(f8, params), p(f9, params), p(f10, params), p(f11, params), p(f12, params))
-  }
-  
-  def mapping[T, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13](f1: (String, ValueType[P1]), f2: (String, ValueType[P2]), f3: (String, ValueType[P3]), f4: (String, ValueType[P4]), f5: (String, ValueType[P5]), f6: (String, ValueType[P6]), f7: (String, ValueType[P7]), f8: (String, ValueType[P8]), f9: (String, ValueType[P9]), f10: (String, ValueType[P10]), f11: (String, ValueType[P11]), f12: (String, ValueType[P12]), f13: (String, ValueType[P13]))(factory: (P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13) => T): MappingValueType[T] = new MappingValueType[T]{
-    def fields = Seq(f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13)
-    def convert(name: String, params: Map[String, String]) = factory(p(f1, params), p(f2, params), p(f3, params), p(f4, params), p(f5, params), p(f6, params), p(f7, params), p(f8, params), p(f9, params), p(f10, params), p(f11, params), p(f12, params), p(f13, params))
-  }
-  
-  def mapping[T, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14](f1: (String, ValueType[P1]), f2: (String, ValueType[P2]), f3: (String, ValueType[P3]), f4: (String, ValueType[P4]), f5: (String, ValueType[P5]), f6: (String, ValueType[P6]), f7: (String, ValueType[P7]), f8: (String, ValueType[P8]), f9: (String, ValueType[P9]), f10: (String, ValueType[P10]), f11: (String, ValueType[P11]), f12: (String, ValueType[P12]), f13: (String, ValueType[P13]), f14: (String, ValueType[P14]))(factory: (P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14) => T): MappingValueType[T] = new MappingValueType[T]{
-    def fields = Seq(f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14)
-    def convert(name: String, params: Map[String, String]) = factory(p(f1, params), p(f2, params), p(f3, params), p(f4, params), p(f5, params), p(f6, params), p(f7, params), p(f8, params), p(f9, params), p(f10, params), p(f11, params), p(f12, params), p(f13, params), p(f14, params))
-  }
-  
-  def mapping[T, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14, P15](f1: (String, ValueType[P1]), f2: (String, ValueType[P2]), f3: (String, ValueType[P3]), f4: (String, ValueType[P4]), f5: (String, ValueType[P5]), f6: (String, ValueType[P6]), f7: (String, ValueType[P7]), f8: (String, ValueType[P8]), f9: (String, ValueType[P9]), f10: (String, ValueType[P10]), f11: (String, ValueType[P11]), f12: (String, ValueType[P12]), f13: (String, ValueType[P13]), f14: (String, ValueType[P14]), f15: (String, ValueType[P15]))(factory: (P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14, P15) => T): MappingValueType[T] = new MappingValueType[T]{
-    def fields = Seq(f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15)
-    def convert(name: String, params: Map[String, String]) = factory(p(f1, params), p(f2, params), p(f3, params), p(f4, params), p(f5, params), p(f6, params), p(f7, params), p(f8, params), p(f9, params), p(f10, params), p(f11, params), p(f12, params), p(f13, params), p(f14, params), p(f15, params))
-  }
-  
-  def mapping[T, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14, P15, P16](f1: (String, ValueType[P1]), f2: (String, ValueType[P2]), f3: (String, ValueType[P3]), f4: (String, ValueType[P4]), f5: (String, ValueType[P5]), f6: (String, ValueType[P6]), f7: (String, ValueType[P7]), f8: (String, ValueType[P8]), f9: (String, ValueType[P9]), f10: (String, ValueType[P10]), f11: (String, ValueType[P11]), f12: (String, ValueType[P12]), f13: (String, ValueType[P13]), f14: (String, ValueType[P14]), f15: (String, ValueType[P15]), f16: (String, ValueType[P16]))(factory: (P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14, P15, P16) => T): MappingValueType[T] = new MappingValueType[T]{
-    def fields = Seq(f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16)
-    def convert(name: String, params: Map[String, String]) = factory(p(f1, params), p(f2, params), p(f3, params), p(f4, params), p(f5, params), p(f6, params), p(f7, params), p(f8, params), p(f9, params), p(f10, params), p(f11, params), p(f12, params), p(f13, params), p(f14, params), p(f15, params), p(f16, params))
-  }
-  
-  def mapping[T, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14, P15, P16, P17](f1: (String, ValueType[P1]), f2: (String, ValueType[P2]), f3: (String, ValueType[P3]), f4: (String, ValueType[P4]), f5: (String, ValueType[P5]), f6: (String, ValueType[P6]), f7: (String, ValueType[P7]), f8: (String, ValueType[P8]), f9: (String, ValueType[P9]), f10: (String, ValueType[P10]), f11: (String, ValueType[P11]), f12: (String, ValueType[P12]), f13: (String, ValueType[P13]), f14: (String, ValueType[P14]), f15: (String, ValueType[P15]), f16: (String, ValueType[P16]), f17: (String, ValueType[P17]))(factory: (P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14, P15, P16, P17) => T): MappingValueType[T] = new MappingValueType[T]{
-    def fields = Seq(f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17)
-    def convert(name: String, params: Map[String, String]) = factory(p(f1, params), p(f2, params), p(f3, params), p(f4, params), p(f5, params), p(f6, params), p(f7, params), p(f8, params), p(f9, params), p(f10, params), p(f11, params), p(f12, params), p(f13, params), p(f14, params), p(f15, params), p(f16, params), p(f17, params))
-  }
-  
-  def mapping[T, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14, P15, P16, P17, P18](f1: (String, ValueType[P1]), f2: (String, ValueType[P2]), f3: (String, ValueType[P3]), f4: (String, ValueType[P4]), f5: (String, ValueType[P5]), f6: (String, ValueType[P6]), f7: (String, ValueType[P7]), f8: (String, ValueType[P8]), f9: (String, ValueType[P9]), f10: (String, ValueType[P10]), f11: (String, ValueType[P11]), f12: (String, ValueType[P12]), f13: (String, ValueType[P13]), f14: (String, ValueType[P14]), f15: (String, ValueType[P15]), f16: (String, ValueType[P16]), f17: (String, ValueType[P17]), f18: (String, ValueType[P18]))(factory: (P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14, P15, P16, P17, P18) => T): MappingValueType[T] = new MappingValueType[T]{
-    def fields = Seq(f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18)
-    def convert(name: String, params: Map[String, String]) = factory(p(f1, params), p(f2, params), p(f3, params), p(f4, params), p(f5, params), p(f6, params), p(f7, params), p(f8, params), p(f9, params), p(f10, params), p(f11, params), p(f12, params), p(f13, params), p(f14, params), p(f15, params), p(f16, params), p(f17, params), p(f18, params))
-  }
-  
-  def mapping[T, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14, P15, P16, P17, P18, P19](f1: (String, ValueType[P1]), f2: (String, ValueType[P2]), f3: (String, ValueType[P3]), f4: (String, ValueType[P4]), f5: (String, ValueType[P5]), f6: (String, ValueType[P6]), f7: (String, ValueType[P7]), f8: (String, ValueType[P8]), f9: (String, ValueType[P9]), f10: (String, ValueType[P10]), f11: (String, ValueType[P11]), f12: (String, ValueType[P12]), f13: (String, ValueType[P13]), f14: (String, ValueType[P14]), f15: (String, ValueType[P15]), f16: (String, ValueType[P16]), f17: (String, ValueType[P17]), f18: (String, ValueType[P18]), f19: (String, ValueType[P19]))(factory: (P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14, P15, P16, P17, P18, P19) => T): MappingValueType[T] = new MappingValueType[T]{
-    def fields = Seq(f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19)
-    def convert(name: String, params: Map[String, String]) = factory(p(f1, params), p(f2, params), p(f3, params), p(f4, params), p(f5, params), p(f6, params), p(f7, params), p(f8, params), p(f9, params), p(f10, params), p(f11, params), p(f12, params), p(f13, params), p(f14, params), p(f15, params), p(f16, params), p(f17, params), p(f18, params), p(f19, params))
-  }
-  
-  def mapping[T, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14, P15, P16, P17, P18, P19, P20](f1: (String, ValueType[P1]), f2: (String, ValueType[P2]), f3: (String, ValueType[P3]), f4: (String, ValueType[P4]), f5: (String, ValueType[P5]), f6: (String, ValueType[P6]), f7: (String, ValueType[P7]), f8: (String, ValueType[P8]), f9: (String, ValueType[P9]), f10: (String, ValueType[P10]), f11: (String, ValueType[P11]), f12: (String, ValueType[P12]), f13: (String, ValueType[P13]), f14: (String, ValueType[P14]), f15: (String, ValueType[P15]), f16: (String, ValueType[P16]), f17: (String, ValueType[P17]), f18: (String, ValueType[P18]), f19: (String, ValueType[P19]), f20: (String, ValueType[P20]))(factory: (P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14, P15, P16, P17, P18, P19, P20) => T): MappingValueType[T] = new MappingValueType[T]{
-    def fields = Seq(f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20)
-    def convert(name: String, params: Map[String, String]) = factory(p(f1, params), p(f2, params), p(f3, params), p(f4, params), p(f5, params), p(f6, params), p(f7, params), p(f8, params), p(f9, params), p(f10, params), p(f11, params), p(f12, params), p(f13, params), p(f14, params), p(f15, params), p(f16, params), p(f17, params), p(f18, params), p(f19, params), p(f20, params))
-  }
-  
-  def mapping[T, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14, P15, P16, P17, P18, P19, P20, P21](f1: (String, ValueType[P1]), f2: (String, ValueType[P2]), f3: (String, ValueType[P3]), f4: (String, ValueType[P4]), f5: (String, ValueType[P5]), f6: (String, ValueType[P6]), f7: (String, ValueType[P7]), f8: (String, ValueType[P8]), f9: (String, ValueType[P9]), f10: (String, ValueType[P10]), f11: (String, ValueType[P11]), f12: (String, ValueType[P12]), f13: (String, ValueType[P13]), f14: (String, ValueType[P14]), f15: (String, ValueType[P15]), f16: (String, ValueType[P16]), f17: (String, ValueType[P17]), f18: (String, ValueType[P18]), f19: (String, ValueType[P19]), f20: (String, ValueType[P20]), f21: (String, ValueType[P21]))(factory: (P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14, P15, P16, P17, P18, P19, P20, P21) => T): MappingValueType[T] = new MappingValueType[T]{
-    def fields = Seq(f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21)
-    def convert(name: String, params: Map[String, String]) = factory(p(f1, params), p(f2, params), p(f3, params), p(f4, params), p(f5, params), p(f6, params), p(f7, params), p(f8, params), p(f9, params), p(f10, params), p(f11, params), p(f12, params), p(f13, params), p(f14, params), p(f15, params), p(f16, params), p(f17, params), p(f18, params), p(f19, params), p(f20, params), p(f21, params))
-  }
-  
-  def mapping[T, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14, P15, P16, P17, P18, P19, P20, P21, P22](f1: (String, ValueType[P1]), f2: (String, ValueType[P2]), f3: (String, ValueType[P3]), f4: (String, ValueType[P4]), f5: (String, ValueType[P5]), f6: (String, ValueType[P6]), f7: (String, ValueType[P7]), f8: (String, ValueType[P8]), f9: (String, ValueType[P9]), f10: (String, ValueType[P10]), f11: (String, ValueType[P11]), f12: (String, ValueType[P12]), f13: (String, ValueType[P13]), f14: (String, ValueType[P14]), f15: (String, ValueType[P15]), f16: (String, ValueType[P16]), f17: (String, ValueType[P17]), f18: (String, ValueType[P18]), f19: (String, ValueType[P19]), f20: (String, ValueType[P20]), f21: (String, ValueType[P21]), f22: (String, ValueType[P22]))(factory: (P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14, P15, P16, P17, P18, P19, P20, P21, P22) => T): MappingValueType[T] = new MappingValueType[T]{
-    def fields = Seq(f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22)
-    def convert(name: String, params: Map[String, String]) = factory(p(f1, params), p(f2, params), p(f3, params), p(f4, params), p(f5, params), p(f6, params), p(f7, params), p(f8, params), p(f9, params), p(f10, params), p(f11, params), p(f12, params), p(f13, params), p(f14, params), p(f15, params), p(f16, params), p(f17, params), p(f18, params), p(f19, params), p(f20, params), p(f21, params), p(f22, params))
-  }
-  
-  private def p[T](field: (String, ValueType[T]), params: Map[String, String]): T = field._2.convert(field._1, params)
-  
-  /////////////////////////////////////////////////////////////////////////////////////////////
-  // ValueType wrappers to provide additional features.
-  
-  /**
-   * ValueType wrapper for the Option property.
-   */
-  def optional[T](valueType: SingleValueType[T]): SingleValueType[Option[T]] = new SingleValueType[Option[T]](){
-    def convert(value: String): Option[T] = if(value == null) None else Some(valueType.convert(value))
-    override def validate(name: String, value: String): Seq[(String, String)] = if(value == null) Nil else valueType.validate(name, value)
-  }
-  
-  /**
-   * ValueType wrapper to trim a parameter.
-   * 
-   * {{{
-   * val form = mapping(
-   *   "name" -> trim(text(required)),
-   *   "mail" -> trim(text(required))
-   * )
-   * }}}
-   */
-  def trim[T](valueType: SingleValueType[T]): SingleValueType[T] = new SingleValueType[T](){
-    def convert(value: String): T = valueType.convert(value.trim)
-    override def validate(name: String, value: String): Seq[(String, String)] = valueType.validate(name, value.trim)
-  }
-  
-//  /**
-//   * ValueType wrapper to trim all parameters.
-//   * 
-//   * {{{
-//   * val form = trim(mapping(
-//   *   "name" -> text(required),
-//   *   "mail" -> text(required)
-//   * ))
-//   * }}}
-//   */
-//  def trim[T](valueType: MappingValueType[T]): MappingValueType[T] = new MappingValueType[T](){
-//    override def validate(name: String, params: Map[String, String]): Seq[(String, String)] =
-//      fields.map { case (name, valueType) => valueType.validate(name, trimMap(params)) }.flatten
-//    
-//    override def validateAsJSON(params: Map[String, String]): JObject = {
-//      JObject(validate("form", trimMap(params)).map { case (key, value) =>
-//        JField(key, JString(value))
-//      }.toList)
-//    }
-//      
-//    private def trimMap(params: Map[String, String]): Map[String, String] = params.map{ x => x._1 -> x._2.trim }
-//  }
-  
-  /**
-   * ValueType wrapper to specified a property name which is used in the error message. 
-   * 
-   * {{{
-   * val form = trim(mapping(
-   *   "name" -> label("User name"   , text(required)),
-   *   "mail" -> label("Mail address", text(required))
-   * ))
-   * }}}
-    */
-  def label[T](label: String, valueType: SingleValueType[T]): SingleValueType[T] = new SingleValueType[T](){
-    def convert(value: String): T = valueType.convert(value)
-    override def validate(name: String, value: String): Seq[(String, String)] = 
-      valueType.validate(label, value).map { case (label, message) => name -> message }
-  }
-  
-  /////////////////////////////////////////////////////////////////////////////////////////////
-  // Constraints
-  
-  trait Constraint {
-    def validate(name: String, value: String): Option[String]
-  }
-  
-  def required: Constraint = new Constraint(){
-    def validate(name: String, value: String): Option[String] = {
-      if(value == null || value.isEmpty) Some("%s is required.".format(name)) else None
-    }
-  }
-  
-  def required(message: String): Constraint = new Constraint(){
-    def validate(name: String, value: String): Option[String] = 
-      if(value == null || value.isEmpty) Some(message) else None
-  }
-  
-  def maxlength(length: Int): Constraint = new Constraint(){
-    def validate(name: String, value: String): Option[String] =
-      if(value != null && value.length > length) Some("%s cannot be longer than %d characters.".format(name, length)) else None
-  }
-  
-  def minlength(length: Int): Constraint = new Constraint(){
-    def validate(name: String, value: String): Option[String] =
-      if(value != null && value.length < length) Some("%s cannot be shorter than %d characters".format(name, length)) else None
-  }
-  
-  def pattern(pattern: String, message: String = ""): Constraint = new Constraint {
-    def validate(name: String, value: String): Option[String] =
-      if(value != null && !value.matches("^" + pattern + "$")){
-        if(message.isEmpty) Some("%s must be '%s'.".format(name, pattern)) else Some(message)
-      } else None
-  }
-  
-}
\ No newline at end of file