Application configurable setting to make unconfigured concepts "un-droppable"

src/server/API/Controllers/ConfigController.cs

@@ -82,6 +82,10 @@ public ActionResult<ConfigDTO> Get()
                 },
                 Client = new ClientOptionsDTO
                 {
+                    FindPatients = new ClientOptionsDTO.FindPatientsDTO
+                    {
+                        AllowEmptyConcepts = clientOptions.FindPatients.AllowEmptyConcepts
+                    },
                     Map = new ClientOptionsDTO.MapOptionsDTO
                     {
                         Enabled = clientOptions.Map.Enabled,

src/server/API/DTO/Compiler/ConceptDTO.cs

@@ -20,6 +20,7 @@ public class ConceptDTO : ConceptRefDTO
         public bool IsParent { get; set; }
         public bool IsEncounterBased { get; set; }
         public bool IsPatientCountAutoCalculated { get; set; }
+        public bool IsQueryable { get; set; }
         public bool IsSpecializable { get; set; }
         public string UiDisplayName { get; set; }
         public string UiDisplayText { get; set; }
@@ -58,6 +59,11 @@ public ConceptDTO(Concept c) : base(c)
             UiDisplayEventName = c.UiDisplayEventName;
             UiNumericDefaultText = c.UiNumericDefaultText;
             EventTypeId = c.EventTypeId;
+
+            // A field is queryable by default, but can be considered ineligible for querying
+            // if it doesn't have query fields (WHERE and numeric) defined.
+            IsQueryable = !(string.IsNullOrWhiteSpace(c.SqlFieldNumeric)
+                            && string.IsNullOrWhiteSpace(c.SqlSetWhere));
         }
     }
 

src/server/API/DTO/Config/ConfigDTO.cs

@@ -68,12 +68,17 @@ public class AttestationCreditsDTO
 
     public class ClientOptionsDTO
     {
+        public FindPatientsDTO FindPatients = new FindPatientsDTO();
         public MapOptionsDTO Map = new MapOptionsDTO();
         public VisualizeOptionsDTO Visualize = new VisualizeOptionsDTO();
         public TimelinesOptionsDTO Timelines = new TimelinesOptionsDTO();
         public PatientListOptionsDTO PatientList = new PatientListOptionsDTO();
         public HelpOptionsDTO Help = new HelpOptionsDTO();
 
+        public class FindPatientsDTO
+        {
+            public bool AllowEmptyConcepts { get; set; }
+        }
         public class MapOptionsDTO
         {
             public bool Enabled { get; set; }

src/server/API/Options/Config.Client.cs

@@ -11,6 +11,11 @@ public partial class Config
     {
         public static class Client
         {
+            public static class FindPatients
+            {
+                public const string Section = @"Client:FindPatients";
+                public const string AllowEmptyConcepts = @"Client:FindPatients:AllowEmptyConcepts";
+            }
             public static class Map
             {
                 public const string Section = @"Client:Map";

src/server/API/Options/StartupExtensions.Options.cs

@@ -255,6 +255,9 @@ static IServiceCollection ConfigureClientOptions(this IServiceCollection service
         {
             services.Configure<ClientOptions>(opts =>
             {
+                // Find Patients
+                opts.FindPatients.AllowEmptyConcepts = config.GetValue<bool>(Config.Client.FindPatients.AllowEmptyConcepts);
+
                 // Map
                 opts.Map.Enabled = config.GetValue<bool>(Config.Client.Map.Enabled);
                 opts.Map.TileURI = config.GetValue<string>(Config.Client.Map.TileURI);

src/server/API/appsettings.json

@@ -113,6 +113,9 @@
     }
   },
   "Client": {
+    "FindPatients": {
+      "AllowEmptyConcepts": true
+    },
     "Map": {
       "Enabled": true,
       "TileURI": "https://server.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer/tile/{z}/{y}/{x}"

src/server/Model/Options/ClientOptions.cs

@@ -9,12 +9,18 @@ namespace Model.Options
 {
     public class ClientOptions
     {
+        public FindPatientsOptions FindPatients = new FindPatientsOptions();
         public MapOptions Map = new MapOptions();
         public VisualizeOptions Visualize = new VisualizeOptions();
         public TimelinesOptions Timelines = new TimelinesOptions();
         public PatientListOptions PatientList = new PatientListOptions();
         public HelpOptions Help = new HelpOptions();
 
+        public class FindPatientsOptions
+        {
+            public bool AllowEmptyConcepts { get; set; }
+        }
+
         public class MapOptions
         {
             public bool Enabled { get; set; }