feat: improve getting server resources

src/pages/scholarship_info.rs

@@ -259,7 +259,7 @@ fn ScholarshipForm(
     });
     
     let comparison_list: Resource<Vec<ComparisonData>> = Resource::new(
-        move || (),  // There's no input to this function.
+        move || scholarship_id.get(),  // There's no input to this function.
         async move |_| {
             get_comparison_info().await
                 .unwrap_or_else(|e| {
@@ -269,10 +269,14 @@ fn ScholarshipForm(
         }
     );
 
-    let scholarship_info: Resource<Result<ExpandableInfo, ServerFnError>> = Resource::new(
+    let scholarship_info = Resource::new(
-        move || scholarship_id.get().unwrap_or_default(),
+        move || scholarship_id.get(),
-        async move |id| {
+        async move |opt_id| {
+            if let Some(id) = opt_id {
                 get_scholarship_info(id).await
+            } else {
+                Err(ServerFnError::new("Cannot get from server with no ID."))
+            }
         }
     );
     
@@ -296,6 +300,10 @@ fn ScholarshipForm(
     
     view! {
         <Panel>
+            <Show
+                when=move || scholarship_id.get().is_some()
+                fallback=|| view! { <p>"Choose a scholarship from the right, or create a new one."</p> }
+            >
                 <Suspense fallback=Loading>
                     {move || {
                         scholarship_info.get()
@@ -429,6 +437,7 @@ fn ScholarshipForm(
                             }).collect_view()
                     }}
                 </Suspense>
+            </Show>
         </Panel>
     }
 }