Contains the Format API used by Form.
For example, to define a custom formatter:
val signedIntFormat = new Formatter[Int] {
def bind(key: String, data: Map[String, String]) = {
stringFormat.bind(key, data).right.flatMap { value =>
scala.util.control.Exception.allCatch[Int]
.either(java.lang.Integer.parseInt(value))
.left.map(e => Seq(FormError(key, "error.signedNumber", Nil)))
}
}
def unbind(key: String, value: Long) = Map(
key -> ((if (value<0) "-" else "+") + value)
)
}
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