AIMS_BD_IATI.WebAPI.Controllers.IATIImportController.GetProjectsToMap C# (CSharp) Method

        public ProjectMapModelMinified GetProjectsToMap(ProjectFieldMapModel GeneralPreference)
        {
            Sessions.GeneralPreferences = GeneralPreference ?? Sessions.GeneralPreferences ?? GetGeneralPreferences();

            if (Sessions.ProjectMapModel.MatchedProjects.IsEmpty() && Sessions.ProjectMapModel.NewProjectsToAddInAims.IsEmpty())
            {

                Sessions.activitiesContainer = aimsDbIatiDAL.GetMappedActivities(Sessions.DP.ID);
                var heirarchyModel = CalculateHierarchyMatching();

                var filterBDModel = SubmitHierarchy(heirarchyModel);
                var iOrgs = GetAllImplementingOrg(filterBDModel);
                var relevantActivities = FilterDP(iOrgs.Orgs);
                var projectMapModel = SubmitActivities(relevantActivities);

            }

            ImportLogic.SetFieldMappingPreferences(Sessions.ProjectMapModel.MatchedProjects, Sessions.GeneralPreferences);

            Sessions.CurrentStage = Stage.ReviewAdjustment;
            var returnResult = new ProjectMapModel
            {
                MatchedProjects = Sessions.ProjectMapModel.MatchedProjects,
                IatiActivitiesNotInAims = null,
                AimsProjectsNotInIati = null,
                NewProjectsToAddInAims = Sessions.ProjectMapModel.NewProjectsToAddInAims,
                ProjectsOwnedByOther = null
            };

            Sessions.ProjectsToMap = returnResult;



            return ToMinifiedProjectMapModel(returnResult);
        }