Update app.py

app.py

@@ -182,11 +182,12 @@ def load_loras(lora_strings_json:str):
         try:
             lora_configs = json.loads(lora_strings_json)
         except:
-            print("parse lora failed")
+            print("parse lora configs failed")
 
     if lora_configs:
+        
         with calculateDuration("Loading LoRA weights"):
-            pipe.unload_lora_weights()
+            active_adapters = pipe.get_active_adapters()
             adapter_names = []
             adapter_weights = []
             for lora_info in lora_configs:
@@ -196,11 +197,15 @@ def load_loras(lora_strings_json:str):
                     adapter_weight = lora_info.get("adapter_weight")
                     if lora_repo and weights and adapter_name:
                         # load lora
-                        pipe.load_lora_weights(lora_repo, weight_name=weights, adapter_name=adapter_name)
-                        adapter_names.append(adapter_name)
-                        adapter_weights.append(adapter_weight)
+                        if adapter_name in active_adapters:
+                            continue
+                        else:
+                            pipe.load_lora_weights(lora_repo, weight_name=weights, adapter_name=adapter_name)
+                            adapter_names.append(adapter_name)
+                            adapter_weights.append(adapter_weight)
             # set lora weights
-            pipe.set_adapters(adapter_names, adapter_weights=adapter_weights)
+            if len(adapter_names) > 0:
+                pipe.set_adapters(adapter_names, adapter_weights=adapter_weights)
 
 
 def generate_control_image(image, mask, width, height):