Update app.py

app.py

@@ -1268,8 +1268,7 @@ with gr.Blocks(title="Makerspace Inventory System", css=CUSTOM_CSS) as demo:
                         height=400
                     )
                     
-                    if EXAMPLE_CHECKOUT_IMAGE:
-                        load_example_checkout_btn = gr.Button("📸 Load Example", size="sm", variant="secondary", scale=0)
+                    load_example_checkout_btn = gr.Button("📸 Load Example", size="sm", variant="secondary", scale=0, visible=EXAMPLE_CHECKOUT_IMAGE is not None)
                 
                 with gr.Column(scale=1):
                     gr.Markdown("""
@@ -1364,8 +1363,7 @@ with gr.Blocks(title="Makerspace Inventory System", css=CUSTOM_CSS) as demo:
             
             receipt_file = gr.File(label="Upload Receipt (PDF or Image)", file_types=[".pdf", ".png", ".jpg", ".jpeg"])
             
-            if EXAMPLE_RECEIPT_PDF:
-                load_example_receipt_btn = gr.Button("📄 Load Example", size="sm", variant="secondary", scale=0)
+            load_example_receipt_btn = gr.Button("📄 Load Example", size="sm", variant="secondary", scale=0, visible=EXAMPLE_RECEIPT_PDF is not None)
             
             receipt_status = gr.Markdown("")
             
@@ -1740,29 +1738,32 @@ with gr.Blocks(title="Makerspace Inventory System", css=CUSTOM_CSS) as demo:
     )
     
     # EXAMPLE INPUTS
-    if EXAMPLE_CHECKOUT_IMAGE:
-        def load_checkout_example():
-            try:
+    def load_checkout_example():
+        try:
+            if EXAMPLE_CHECKOUT_IMAGE:
                 return Image.open(EXAMPLE_CHECKOUT_IMAGE)
-            except:
-                return None
-        
-        load_example_checkout_btn.click(
-            fn=load_checkout_example,
-            outputs=[checkout_image]
-        )
+        except:
+            pass
+        return None
+    
+    load_example_checkout_btn.click(
+        fn=load_checkout_example,
+        outputs=[checkout_image]
+    )
     
-    if EXAMPLE_RECEIPT_PDF:
-        def load_receipt_example():
-            try:
+    def load_receipt_example():
+        try:
+            if EXAMPLE_RECEIPT_PDF:
                 return EXAMPLE_RECEIPT_PDF
-            except:
-                return None
-        
-        load_example_receipt_btn.click(
-            fn=load_receipt_example,
-            outputs=[receipt_file]
-        )
+        except:
+            pass
+        return None
+    
+    load_example_receipt_btn.click(
+        fn=load_receipt_example,
+        outputs=[receipt_file]
+    )
 
 if __name__ == "__main__":
-    demo.launch()    
+    demo.queue()
+    demo.launch()