PrepareQuery callback never firing

[tanner0101]

Tracking down an issue where model.save(...) is never completing (for a complex route).

Looks like callback parameter to PrepareQuery is never firing.

Expected output would be:

START preparing
done preparing

hangtest.zip

Zip file attached can be used to re-create. Note you will need to add this hack:

extension Router {
    /// Creates a `Route` at the provided path using the `PUT` method.
    ///
    /// [Learn More →](https://docs.vapor.codes/3.0/getting-started/routing/)
    @discardableResult
    func get<C, T>(
        _ content: C.Type,
        at path: PathComponent...,
        use closure: @escaping RequestDecodableResponder<C, T>.Closure
    ) -> Route<Responder> where C: RequestDecodable, T: ResponseEncodable {
        let responder = RequestDecodableResponder(closure: closure)
        let route = Route<Responder>(
            path: [.constants([.bytes(HTTPMethod.get.bytes)])] + path,
            output: responder
        )
        self.register(route: route)
        return route
    }
}

You will also need test_user:test_user@testdb configured as a MySQL user w/ full rights.

[SandorDobi]

this is fixed here @ #127

[Joannis]

Merged #127