Update dashboard.py

dashboard.py

@@ -592,28 +592,32 @@ def load_Task_Method_trends(topic, **kwargs):
 
     task_data = dict()
 
+    # Check if macro_topics_mapping exists
+    if topic not in macro_topics_mapping:
+        raise ValueError(f"Topic '{topic}' not found in macro_topics_mapping")
+    macro_topic_str = str(macro_topics_mapping[topic])
+
     topic2toptasks = load_topic2toptasks()
 
 
     #load the task_timeseries dataframe for each of the task mapped from the selected topic in the dict topic2toptasks
-    for task in topic2toptasks[str(macro_topics_mapping[topic])]:
-        task_data[task]=loadTaskMethodTimeSeries(str(macro_topics_mapping[topic]),task)
+    for task in topic2toptasks.get(macro_topic_str, []):
+        task_data[task] = loadTaskMethodTimeSeries(macro_topic_str, task)
 
     # Create Panel UI with dropdown selection
-    task_dropdown = pn.widgets.Select(name="Select TASK", options=[key for key in task_data.keys()])
+    task_dropdown = pn.widgets.Select(
+        name="Select TASK",
+        options=[key for key in task_data.keys()] if task_data else ["No available tasks"]
+    )
 
     @pn.depends(task_dropdown.param.value)
     def load_task_overlays(task):
-        for tsk, task_method_df in task_data.items():
-            if tsk == task:
-                return create_overlay_plot(task_method_df)
-
-        return hv.Text(0.5, 0.5, "No data available", halign="center")
+        task_method_df = task_data.get(task)
+        return create_overlay_plot(task_method_df) if task_method_df else hv.Text(0.5, 0.5, "No data available", halign="center")
 
     return pn.Column(
         task_dropdown,
-        pn.bind(load_task_overlays, task_dropdown,),
-        align="center",
+        pn.bind(load_task_overlays, task_dropdown,)
     )
     
 mapping = {