public virtual HttpResponseMessage CanPlaceRegistrant(int registrantId, int registrationTemplatePlacementId, int groupId)
{
var rockContext = this.Service.Context as RockContext;
RegistrationTemplatePlacementService registrationTemplatePlacementService = new RegistrationTemplatePlacementService(rockContext);
var registrationTemplatePlacement = registrationTemplatePlacementService.Get(registrationTemplatePlacementId);
// make sure the specified registrant, registrationTemplatePlacement, and group are found
if (registrationTemplatePlacement == null)
{
return(ControllerContext.Request.CreateErrorResponse(
HttpStatusCode.NotFound,
$"Specified RegistrationTemplatePlacement not found."));
}
var group = new GroupService(rockContext).Get(groupId);
if (group == null)
{
return(ControllerContext.Request.CreateErrorResponse(
HttpStatusCode.NotFound,
$"Specified group not found."));
}
var registrantInfo = new RegistrationRegistrantService(rockContext).GetSelect(registrantId, s => new
{
s.PersonAlias.Person,
s.Registration.RegistrationInstance
});
if (registrantInfo == null)
{
return(ControllerContext.Request.CreateErrorResponse(
HttpStatusCode.NotFound,
$"Specified registrant not found."));
}
if (registrationTemplatePlacement.GroupTypeId != group.GroupTypeId)
{
return(ControllerContext.Request.CreateErrorResponse(
HttpStatusCode.BadRequest,
$"Specified group's group type does not match the group type of the registration placement."));
}
RegistrationInstanceService registrationInstanceService = new RegistrationInstanceService(rockContext);
var sharedGroupsQuery = registrationTemplatePlacementService.GetRegistrationTemplatePlacementPlacementGroups(registrationTemplatePlacement);
var instanceGroupsQuery = registrationInstanceService.GetRegistrationInstancePlacementGroups(registrantInfo.RegistrationInstance).Where(a => a.GroupTypeId == registrationTemplatePlacement.GroupTypeId);
var placementGroupsQuery = sharedGroupsQuery.Union(instanceGroupsQuery);
// make sure the specified group is one of the placement groups
if (!placementGroupsQuery.Any(a => a.Id == groupId))
{
return(ControllerContext.Request.CreateErrorResponse(
HttpStatusCode.NotFound,
$"{group.Name} is not a placement group for this registration template or instance."));
}
// If multiple placements are allowed, and there are no more things to check, we can return an OK
if (registrationTemplatePlacement.AllowMultiplePlacements)
{
return(new HttpResponseMessage(HttpStatusCode.OK));
}
else
{
var personAlreadyInPlacementGroup = placementGroupsQuery.Where(a => a.Id != groupId).Any(a => a.Members.Any(m => m.PersonId == registrantInfo.Person.Id));
if (personAlreadyInPlacementGroup)
{
return(ControllerContext.Request.CreateErrorResponse(
HttpStatusCode.BadRequest,
$"{registrantInfo.Person} can not be in more than one {registrationTemplatePlacement.Name} group"));
}
}
return(new HttpResponseMessage(HttpStatusCode.OK));
}