Update app.py

app.py

@@ -10,6 +10,7 @@ DEFAULT_STYLE_NAME = "Photographic (Default)"
 
 
 def generate_image(upload_images, prompt, negative_prompt, style_name, steps, progress=gr.Progress(track_tqdm=True)):
+    error_if_no_img(prompt)
     p, n = apply_style(style_name, prompt, negative_prompt)
 
     job = prodia.create("/photomaker",
@@ -23,6 +24,11 @@ def generate_image(upload_images, prompt, negative_prompt, style_name, steps, pr
     return result.image_url
 
 
+def error_if_no_img(prompt):
+    raise gr.Error("test") if ("img" not in prompt)
+
+
+
 def swap_to_gallery(images):
     return gr.update(value=images, visible=True), gr.update(visible=True), gr.update(visible=False)