No empty logs and fixes some errors

application/api/image_processing.py

@@ -20,11 +20,15 @@ async def process_image(image: bytes) -> str:
         if r.boxes:
             for box in r.boxes:
                 cls_name = r.names[int(box.cls[0])]
-                if cls_name == "car":
+                if cls_name in ["car", "truck"]:
                     x1, y1, x2, y2 = map(int, box.xyxy[0])
                     size = (x2 - x1) ** 2 + (y2 - y1) ** 2
                     cars.append((size, (x1, y1, x2, y2)))
+        else:
+            return ""
 
+    if cars == []:
+        return ""
     # Get the biggest car box
     size, corners = max(cars, key=lambda x: x[0])
 
@@ -45,5 +49,7 @@ async def process_image(image: bytes) -> str:
                     lp_np = np.array(object=lp_img)
                     result = ocr_reader.readtext(image=lp_np)
                     print(result)
+        else:
+            return ""
 
     return str(result[0][1])  # type: ignore

application/api/views.py

@@ -17,13 +17,14 @@ def data():
     application.last_image.seek(0)
     application.last_image = io.BytesIO(request.data)
     np = asyncio.run(process_image(image=data))
-
-    # Check if the found plate is allowed to exit
-    allowed = AllowedPlate.query.filter_by(plate=np).first() is not None
-    db.session.add(  # Log the found numberplate and status
-        LoggedItem(plate=np, allowed=allowed, datetime=datetime.now())
-    )
-    db.session.commit()
+    allowed = False
+    if np != "":
+        # Check if the found plate is allowed to exit
+        allowed = AllowedPlate.query.filter_by(plate=np).first() is not None
+        db.session.add(  # Log the found numberplate and status
+            LoggedItem(plate=np, allowed=allowed, datetime=datetime.now())
+        )
+        db.session.commit()
 
     # Return decision to Pico
     return jsonify(

application/dashboard/views.py

@@ -23,8 +23,10 @@ def dashboard():
         .limit(50)
         .all()
     )
-    form = npForm() 
-    return render_template("dashboard.html", plates=Plates, logs=logs, form=form)
+    form = npForm()
+    return render_template(
+        "dashboard.html", plates=Plates, logs=logs, form=form
+    )
 
 
 @dash_blueprint.route("/add", methods=["GET", "POST"])