Added meta operation.

pkg/funcspec/function_api.go

@@ -757,8 +757,8 @@ func (h *Handler) replaceMetaVariables(sqlquery string, r *http.Request, userCtx
 	}
 
 	if strings.Contains(sqlquery, "[rid_session]") {
-		sessionID := userCtx.SessionID
-		sqlquery = strings.ReplaceAll(sqlquery, "[rid_session]", fmt.Sprintf("'%s'", sessionID))
+		sessionID, _ := strconv.ParseInt(userCtx.SessionID, 10, 64)
+		sqlquery = strings.ReplaceAll(sqlquery, "[rid_session]", fmt.Sprintf("%d", sessionID))
 	}
 
 	if strings.Contains(sqlquery, "[method]") {
@@ -874,7 +874,7 @@ func IsNumeric(s string) bool {
 
 // getReplacementForBlankParam determines the replacement value for an unused parameter
 // based on whether it appears within quotes in the SQL query.
-// It checks for PostgreSQL quotes: single quotes ('') and dollar quotes ($...$)
+// It checks for PostgreSQL quotes: single quotes (”) and dollar quotes ($...$)
 func getReplacementForBlankParam(sqlquery, param string) string {
 	// Find the parameter in the query
 	idx := strings.Index(sqlquery, param)

pkg/funcspec/function_api_test.go

@@ -784,7 +784,7 @@ func TestReplaceMetaVariables(t *testing.T) {
 	userCtx := &security.UserContext{
 		UserID:    123,
 		UserName:  "testuser",
-		SessionID: "session-abc",
+		SessionID: "456",
 	}
 
 	metainfo := map[string]interface{}{
@@ -819,7 +819,7 @@ func TestReplaceMetaVariables(t *testing.T) {
 			name:     "Replace [rid_session]",
 			sqlQuery: "SELECT * FROM sessions WHERE session_id = [rid_session]",
 			expectedCheck: func(result string) bool {
-				return strings.Contains(result, "'session-abc'")
+				return strings.Contains(result, "456")
 			},
 		},
 	}

pkg/resolvespec/handler.go

@@ -151,6 +151,8 @@ func (h *Handler) Handle(w common.ResponseWriter, r common.Request, params map[s
 		h.handleUpdate(ctx, w, id, req.ID, req.Data, req.Options)
 	case "delete":
 		h.handleDelete(ctx, w, id, req.Data)
+	case "meta":
+		h.handleMeta(ctx, w, schema, entity, model)
 	default:
 		logger.Error("Invalid operation: %s", req.Operation)
 		h.sendError(w, http.StatusBadRequest, "invalid_operation", "Invalid operation", nil)
@@ -188,6 +190,21 @@ func (h *Handler) HandleGet(w common.ResponseWriter, r common.Request, params ma
 	h.sendResponse(w, metadata, nil)
 }
 
+// handleMeta processes meta operation requests
+func (h *Handler) handleMeta(ctx context.Context, w common.ResponseWriter, schema, entity string, model interface{}) {
+	// Capture panics and return error response
+	defer func() {
+		if err := recover(); err != nil {
+			h.handlePanic(w, "handleMeta", err)
+		}
+	}()
+
+	logger.Info("Getting metadata for %s.%s via meta operation", schema, entity)
+
+	metadata := h.generateMetadata(schema, entity, model)
+	h.sendResponse(w, metadata, nil)
+}
+
 func (h *Handler) handleRead(ctx context.Context, w common.ResponseWriter, id string, options common.RequestOptions) {
 	// Capture panics and return error response
 	defer func() {

pkg/restheadspec/handler.go

@@ -146,13 +146,25 @@ func (h *Handler) Handle(w common.ResponseWriter, r common.Request, params map[s
 			h.handleRead(ctx, w, "", options)
 		}
 	case "POST":
-		// Create operation
+		// Read request body
 		body, err := r.Body()
 		if err != nil {
 			logger.Error("Failed to read request body: %v", err)
 			h.sendError(w, http.StatusBadRequest, "invalid_request", "Failed to read request body", err)
 			return
 		}
+
+		// Try to detect if this is a meta operation request
+		var bodyMap map[string]interface{}
+		if err := json.Unmarshal(body, &bodyMap); err == nil {
+			if operation, ok := bodyMap["operation"].(string); ok && operation == "meta" {
+				logger.Info("Detected meta operation request for %s.%s", schema, entity)
+				h.handleMeta(ctx, w, schema, entity, model)
+				return
+			}
+		}
+
+		// Not a meta operation, proceed with normal create/update
 		var data interface{}
 		if err := json.Unmarshal(body, &data); err != nil {
 			logger.Error("Failed to decode request body: %v", err)
@@ -229,6 +241,21 @@ func (h *Handler) HandleGet(w common.ResponseWriter, r common.Request, params ma
 	h.sendResponse(w, metadata, nil)
 }
 
+// handleMeta processes meta operation requests
+func (h *Handler) handleMeta(ctx context.Context, w common.ResponseWriter, schema, entity string, model interface{}) {
+	// Capture panics and return error response
+	defer func() {
+		if err := recover(); err != nil {
+			h.handlePanic(w, "handleMeta", err)
+		}
+	}()
+
+	logger.Info("Getting metadata for %s.%s via meta operation", schema, entity)
+
+	metadata := h.generateMetadata(schema, entity, model)
+	h.sendResponse(w, metadata, nil)
+}
+
 // parseOptionsFromHeaders is now implemented in headers.go
 
 func (h *Handler) handleRead(ctx context.Context, w common.ResponseWriter, id string, options ExtendedRequestOptions) {