You can search for the references in studio:

1. Open Studio
2. Menu -> Edit -> Search in files
   • Find: Dimension/Measure (for example [DateOfSale].[Actual].[DaySold])
   • File type: *.dfi

It should find relevant entities.

Cache Fileserver is an old project of mine which allows file upload/download. Files have IDs, but to download each client get's an unique link active only for his IP for a limited time. You can remove IDs altogether.

You can define your own device of terminal type (also see System  - Configuration - Devices you can see other defined Cache terminals) :

Here's an idea on how to do it without triggers altogether.

1. Set IsLeader property only in case member is a leader. So its 1 or NULL.

2. Add unique index on (Team, IsLeader). Unique index can have any number of NULL records.

3. If you try to add more than one leader, you'll get an error:

ERROR #5808: Key not unique: Utils.TeamMember:IsLeaderIndex:^Utils.TeamMemberI("IsLeaderIndex"," 1"," 1") [%SaveData+14^Utils.TeamMember.1:USER]

Sample code:

Class Utils.TeamMember Extends %Persistent
{

Property Team As %String;

Property Member As %String;

Property IsLeader(VALUELIST = ",1");

Index IsLeaderIndex On (Team, IsLeader) [ Unique ];

/// do ##class(Utils.TeamMember).Test()
ClassMethod Test(AddTwoLeaders = {$$$YES})
{
    do ..%KillExtent()
    write $System.Status.GetErrorText(..Add(1, "Alice"))
    write $System.Status.GetErrorText(..Add(1, "Bob"))
    write $System.Status.GetErrorText(..Add(1, "Clover"))
    write $System.Status.GetErrorText(..Add(1, "Dave", 1))
    if AddTwoLeaders {
        write $System.Status.GetErrorText(..Add(1, "Helen", 1))
    }
}

ClassMethod Add(Team, Member, IsLeader = "")
{
    set obj = ..%New()
    set obj.Team = Team
    set obj.Member = Member
    set obj.IsLeader = IsLeader
    quit obj.%Save()
}

}

You should have FHIR package, which includes dtls to transform hl7 messages into json or xml. You can either use that or write your own solution based on that.