MM-20644: Add users to teams as a SchemeAdmin based on a new configuration field on GroupTeams and GroupChannels records. (#13361)

* MM-20644: Add users to teams as a SchemeAdmin based on a new configuration field on GroupTeams and GroupChannels records.

* MM-20644: Adds SchemeAdmin to mapping of the GroupSyncable struct fields.

* MM-2064: Adds test to ensure SchemeAdmin field value is mapped.

* MM-20644: Adds missing index creation for fresh DBs.

* MM-20644: Duplicates UpdateMembersRole across Team and Channel stores. Adds tests.

* MM-20644: Fixes some old method name references.

* MM-20644: Moves variable declaration; removes Println statement.

* MM-20644: Use a SQL query instead of two to update Team and Channel members.

* MM-20644: Fixes tests; updates query.

* MM-20644: Fix permission check for patching a group syncable.

* MM-20644: Fixes test for change of permissions verification in group patch API request.

* MM-20644: Fix for ORM select vs insert.

* MM-20644: Linting fixes.

* MM-20644: Fixes some tests.

* MM-20644: Skips changing the role of guests.

* MM-20644: Added syncableID filtering

app/group.go

@@ -168,7 +168,7 @@ func (a *App) ChannelMembersToRemove() ([]*model.ChannelMember, *model.AppError)
 	return a.Srv.Store.Group().ChannelMembersToRemove()
 }
 
-func (a *App) GetGroupsByChannel(channelId string, opts model.GroupSearchOpts) ([]*model.Group, int, *model.AppError) {
+func (a *App) GetGroupsByChannel(channelId string, opts model.GroupSearchOpts) ([]*model.GroupWithSchemeAdmin, int, *model.AppError) {
 	groups, err := a.Srv.Store.Group().GetGroupsByChannel(channelId, opts)
 	if err != nil {
 		return nil, 0, err
@@ -182,7 +182,7 @@ func (a *App) GetGroupsByChannel(channelId string, opts model.GroupSearchOpts) (
 	return groups, int(count), nil
 }
 
-func (a *App) GetGroupsByTeam(teamId string, opts model.GroupSearchOpts) ([]*model.Group, int, *model.AppError) {
+func (a *App) GetGroupsByTeam(teamId string, opts model.GroupSearchOpts) ([]*model.GroupWithSchemeAdmin, int, *model.AppError) {
 	groups, err := a.Srv.Store.Group().GetGroupsByTeam(teamId, opts)
 	if err != nil {
 		return nil, 0, err
@@ -313,3 +313,18 @@ func (a *App) ChannelMembersMinusGroupMembers(channelID string, groupIDs []strin
 	}
 	return users, totalCount, nil
 }
+
+// UserIsInAdminRoleGroup returns true at least one of the user's groups are configured to set the members as
+// admins in the given syncable.
+func (a *App) UserIsInAdminRoleGroup(userID, syncableID string, syncableType model.GroupSyncableType) (bool, *model.AppError) {
+	groupIDs, err := a.Srv.Store.Group().AdminRoleGroupsForSyncableMember(userID, syncableID, syncableType)
+	if err != nil {
+		return false, err
+	}
+
+	if len(groupIDs) == 0 {
+		return false, nil
+	}
+
+	return true, nil
+}