private static People FilterByMembership(BasicPerson[] candidates, Organization organization)
{
// Get the organization tree
Organizations orgTree = organization.ThisAndBelow();
// Build a lookup table of this organization tree. For each person in 'people'
// that has at least one membership in an organization in the lookup table,
// add that person to the final result.
Dictionary <int, BasicOrganization> lookup = new Dictionary <int, BasicOrganization>();
foreach (Organization org in orgTree)
{
lookup[org.Identity] = org;
}
// Get the list of all memberships
Dictionary <int, List <BasicParticipation> > memberships =
SwarmDb.GetDatabaseForReading()
.GetParticipationsForPeople(LogicServices.ObjectsToIdentifiers(candidates));
People result = new People();
foreach (BasicPerson basicPerson in candidates)
{
bool memberOfOrganization = false;
if (memberships.ContainsKey(basicPerson.Identity))
{
foreach (BasicParticipation membership in memberships[basicPerson.Identity])
{
if (lookup.ContainsKey(membership.OrganizationId))
{
memberOfOrganization = true;
}
}
}
if (memberOfOrganization)
{
result.Add(Person.FromBasic(basicPerson));
}
}
return(result);
}
