Forms 将Play Framework表单元素映射到自定义类型
我希望将表单元素映射到Forms 将Play Framework表单元素映射到自定义类型,forms,scala,playframework,mapping,Forms,Scala,Playframework,Mapping,我希望将表单元素映射到java.sql.Time,映射方式与映射java.sql.Date相同。我有以下代码: case class Item (timeField: java.sql.Time, dateField: java.sql.Date) val itemForm = Form( mapping( "timeField" -> sqlDate("H:mm"), "dateField" -> sqlDate("yyyy\M\d")
java.sql.Time
,映射方式与映射java.sql.Date
相同。我有以下代码:
case class Item (timeField: java.sql.Time, dateField: java.sql.Date)
val itemForm = Form(
mapping(
"timeField" -> sqlDate("H:mm"),
"dateField" -> sqlDate("yyyy\M\d")
)(Item.apply)(Item.unapply)
)
映射dodateField
效果很好,但是是否可以创建自定义映射,例如时间域?我期待着这样的事情
val itemForm = Form(
mapping(
"timeField" -> sqlTime("H:mm"), //my own mapping function
"dateField" -> sqlDate("yyyy\M\d")
)(Item.apply)(Item.unapply)
)
您可以使用自定义格式化程序来实现这一点。代码如下所示:
def sqlTime(pattern: String) = of(sqlTimeFormat(pattern))
def sqlTimeFormat(pattern: String): Formatter[java.sql.Time] = new Formatter[java.sql.Time] {
def bind(key: String, data: Map[String, String]) = {
try {
val sdf = new SimpleDateFormat(pattern)
Right(new java.sql.Time(sdf.parse(data.getOrElse(key, "")).getTime))
} catch {
case e: Exception => Left(List(FormError(key, "Your error message")))
}
}
def unbind(key: String, value: java.sql.Time) = Map(key -> value.formatted(pattern))
}
注意:我还没有对此进行测试,您可能需要进行一些调整,但应该很接近。您可以使用自定义格式化程序来实现这一点。代码如下所示:
def sqlTime(pattern: String) = of(sqlTimeFormat(pattern))
def sqlTimeFormat(pattern: String): Formatter[java.sql.Time] = new Formatter[java.sql.Time] {
def bind(key: String, data: Map[String, String]) = {
try {
val sdf = new SimpleDateFormat(pattern)
Right(new java.sql.Time(sdf.parse(data.getOrElse(key, "")).getTime))
} catch {
case e: Exception => Left(List(FormError(key, "Your error message")))
}
}
def unbind(key: String, value: java.sql.Time) = Map(key -> value.formatted(pattern))
}
注意:我还没有对此进行测试,您可能需要进行一些调整,但应该很接近。您可以使用自定义格式化程序来实现这一点。代码如下所示:
def sqlTime(pattern: String) = of(sqlTimeFormat(pattern))
def sqlTimeFormat(pattern: String): Formatter[java.sql.Time] = new Formatter[java.sql.Time] {
def bind(key: String, data: Map[String, String]) = {
try {
val sdf = new SimpleDateFormat(pattern)
Right(new java.sql.Time(sdf.parse(data.getOrElse(key, "")).getTime))
} catch {
case e: Exception => Left(List(FormError(key, "Your error message")))
}
}
def unbind(key: String, value: java.sql.Time) = Map(key -> value.formatted(pattern))
}
注意:我还没有对此进行测试,您可能需要进行一些调整,但应该很接近。您可以使用自定义格式化程序来实现这一点。代码如下所示:
def sqlTime(pattern: String) = of(sqlTimeFormat(pattern))
def sqlTimeFormat(pattern: String): Formatter[java.sql.Time] = new Formatter[java.sql.Time] {
def bind(key: String, data: Map[String, String]) = {
try {
val sdf = new SimpleDateFormat(pattern)
Right(new java.sql.Time(sdf.parse(data.getOrElse(key, "")).getTime))
} catch {
case e: Exception => Left(List(FormError(key, "Your error message")))
}
}
def unbind(key: String, value: java.sql.Time) = Map(key -> value.formatted(pattern))
}
注意:我还没有测试过这个,你可能需要做一些调整,但应该很接近