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Home/ Questions/Q 8033199
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Editorial Team
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Editorial Team
Asked: June 5, 20262026-06-05T01:37:19+00:00 2026-06-05T01:37:19+00:00

New to Play, looks like one can apply numeric constraint to Ints and Longs,

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New to Play, looks like one can apply numeric constraint to Ints and Longs, but not Doubles.

Kind of a show stopper given that case classes with Double properties cannot be bound/unbound; i.e.

case class Foo(orderTotal: Double)

// no dice, need a Double but get an Int (same deal with longNumber)
val form = Form(mapping('orderTotal -> number)(Foo.apply)(Foo.unapply) )

Anyone got a workaround? Seems like an oversight, no? You’d think that Double would be a fairly common requirement…

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  1. Editorial Team
    Editorial Team
    2026-06-05T01:37:20+00:00Added an answer on June 5, 2026 at 1:37 am

    see Julian’s comment above, resolved in 2.1 snapshot…

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