Исправил отображения объектов в источниках

dbapp/mainapp/views/lyngsat.py

@@ -46,22 +46,30 @@ class LinkLyngsatSourcesView(LoginRequiredMixin, FormMessageMixin, FormView):
                 
             param = objitem.parameter_obj
             
-            # Round object frequency
+            # Round object frequency to 1 decimal place
             if param.frequency:
-                rounded_freq = round(param.frequency, 0)  # Round to integer
+                rounded_freq = round(param.frequency, 1)  # Round to 1 decimal place
                 
                 # Find matching LyngSat source
-                # Compare by rounded frequency and polarization
+                # Compare by rounded frequency (with tolerance) and polarization
+                # LyngSat frequencies are also rounded to 1 decimal place for comparison
                 lyngsat_sources = LyngSat.objects.filter(
                     id_satellite=param.id_satellite,
-                    polarization=param.polarization,
-                    frequency__gte=rounded_freq - frequency_tolerance,
-                    frequency__lte=rounded_freq + frequency_tolerance
-                ).order_by('frequency')
+                    polarization=param.polarization
+                ).select_related('id_satellite', 'polarization')
                 
-                if lyngsat_sources.exists():
-                    # Take first matching source
-                    objitem.lyngsat_source = lyngsat_sources.first()
+                # Filter by rounded frequency with tolerance
+                matching_sources = []
+                for lyngsat in lyngsat_sources:
+                    if lyngsat.frequency:
+                        rounded_lyngsat_freq = round(lyngsat.frequency, 1)
+                        if abs(rounded_lyngsat_freq - rounded_freq) <= frequency_tolerance:
+                            matching_sources.append(lyngsat)
+                
+                if matching_sources:
+                    # Take first matching source (sorted by frequency difference)
+                    matching_sources.sort(key=lambda x: abs(round(x.frequency, 1) - rounded_freq))
+                    objitem.lyngsat_source = matching_sources[0]
                     objitem.save(update_fields=['lyngsat_source'])
                     linked_count += 1
         
@@ -159,3 +167,35 @@ class ClearLyngsatCacheView(LoginRequiredMixin, View):
     def get(self, request):
         """Cache management page."""
         return render(request, 'mainapp/clear_lyngsat_cache.html')
+
+
+class UnlinkAllLyngsatSourcesView(LoginRequiredMixin, View):
+    """View for unlinking all LyngSat sources from ObjItems."""
+    
+    def post(self, request):
+        """Unlink all LyngSat sources."""
+        try:
+            # Count objects with LyngSat sources before unlinking
+            linked_count = ObjItem.objects.filter(lyngsat_source__isnull=False).count()
+            
+            # Unlink all LyngSat sources
+            ObjItem.objects.filter(lyngsat_source__isnull=False).update(lyngsat_source=None)
+            
+            messages.success(
+                request,
+                f"Успешно отвязано {linked_count} объектов от источников LyngSat"
+            )
+        except Exception as e:
+            messages.error(request, f"Ошибка при отвязке источников: {str(e)}")
+        
+        return redirect('mainapp:actions')
+    
+    def get(self, request):
+        """Show confirmation page."""
+        # Count objects with LyngSat sources
+        linked_count = ObjItem.objects.filter(lyngsat_source__isnull=False).count()
+        
+        context = {
+            'linked_count': linked_count
+        }
+        return render(request, 'mainapp/unlink_lyngsat_confirm.html', context)