A stored file on a record shows as its name and opens from the row

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GT37Z1Xtfd9pUuQtMTg6Yt

src/app.rs

@@ -1400,6 +1400,7 @@ fn AlternativeCard(
                                                 feature_name=feature_name.clone()
                                                 transitions=spec.transitions.clone()
                                                 link=spec.link.clone()
+                                                bucket=spec.bucket().map(str::to_string)
                                                 empty=spec.empty.clone()
                                                 pending_transitions=pending_transitions
                                                 transition_batch=transition_batch
@@ -1853,6 +1854,7 @@ fn ResourceFeature(
     feature_name: String,
     transitions: Vec<Transition>,
     link: Option<RowLink>,
+    bucket: Option<String>,
     empty: Option<String>,
     pending_transitions: RwSignal<std::collections::HashMap<(String, String), String>>,
     transition_batch: ServerAction<TransitionAnswers>,
@@ -1888,6 +1890,7 @@ fn ResourceFeature(
                     let feature_name = feature_name.clone();
                     let transitions = transitions.clone();
                     let link = link.clone();
+                    let bucket = bucket.clone();
                     let empty = empty.clone().unwrap_or_else(|| t(&lang().get(), "nothing_here_yet").to_string());
                     data.get()
                         .map(|res| match res {
@@ -1897,6 +1900,7 @@ fn ResourceFeature(
                                         feature_name=feature_name
                                         transitions=transitions
                                         link=link
+                                        bucket=bucket
                                         empty=empty
                                         value=value
                                         pending_transitions=pending_transitions
@@ -1925,6 +1929,7 @@ fn ResourceValue(
     feature_name: String,
     transitions: Vec<Transition>,
     link: Option<RowLink>,
+    bucket: Option<String>,
     empty: String,
     value: serde_json::Value,
     pending_transitions: RwSignal<std::collections::HashMap<(String, String), String>>,
@@ -1957,12 +1962,14 @@ fn ResourceValue(
                             let feature_name = feature_name.clone();
                             let transitions = transitions.clone();
                             let link = link.clone();
+                            let bucket = bucket.clone();
                             move |answer: Answer| {
                                 view! {
                                     <AnswerRow
                                         feature_name=feature_name.clone()
                                         transitions=transitions.clone()
                                         link=link.clone()
+                                        bucket=bucket.clone()
                                         answer=answer
                                         pending_transitions=pending_transitions
                                         transition_batch=transition_batch
@@ -2217,11 +2224,20 @@ fn SelectField(
     }
 }
 
+/// The file's own name, if a field's value is an upload's key: a
+/// uuid, a dash, and the name it was sent with (`upload.rs`).
+pub fn uploaded_filename(value: &str) -> Option<&str> {
+    let (id, rest) = value.split_at_checked(36)?;
+    let shaped = id.char_indices().all(|(i, c)| if matches!(i, 8 | 13 | 18 | 23) { c == '-' } else { c.is_ascii_hexdigit() });
+    rest.strip_prefix('-').filter(|name| shaped && !name.is_empty())
+}
+
 #[component]
 fn AnswerRow(
     feature_name: String,
     transitions: Vec<Transition>,
     link: Option<RowLink>,
+    bucket: Option<String>,
     answer: Answer,
     pending_transitions: RwSignal<std::collections::HashMap<(String, String), String>>,
     transition_batch: ServerAction<TransitionAnswers>,
@@ -2255,6 +2271,9 @@ fn AnswerRow(
     let item_id = answer.id.clone();
     let key = (feature_name.clone(), item_id.clone());
     let link = link.map(|l| (l.href(&answer.id, &answer.responses), l.label));
+    // Where a stored file on this record is fetched from: the record
+    // names it, never the key (see `upload::attachment`).
+    let attachment_base = bucket.map(|b| format!("/attachment/{b}/{}", answer.id));
 
     view! {
         <article class="answer-row" class:decided=move || decided>
@@ -2288,6 +2307,17 @@ fn AnswerRow(
                                 .into_any();
                         }
                         let text = value.as_str().map(str::to_string).unwrap_or_else(|| value.to_string());
+                        // A stored file shows as its name, and opens.
+                        if let (Some(base), Some(filename)) = (attachment_base.clone(), uploaded_filename(&text)) {
+                            let href = format!("{base}/{key}");
+                            return view! {
+                                <div class="answer-field">
+                                    <span class="answer-field-key">{key}</span>
+                                    <a class="answer-field-value answer-file" href=href rel="external">{filename.to_string()}</a>
+                                </div>
+                            }
+                            .into_any();
+                        }
                         view! {
                             <div class="answer-field">
                                 <span class="answer-field-key">{key}</span>
@@ -3028,6 +3058,14 @@ mod responsible_tests {
         Responsible { name: "R".into(), contact: contact.into(), group: group.map(String::from) }
     }
 
+    #[test]
+    fn an_uploads_key_shows_as_the_name_it_was_sent_with() {
+        assert_eq!(super::uploaded_filename("3f2b8c1e-9a4d-4e7b-8c21-0a1b2c3d4e5f-rapport 2026.pdf"), Some("rapport 2026.pdf"));
+        assert_eq!(super::uploaded_filename("rapport.pdf"), None);
+        assert_eq!(super::uploaded_filename("3f2b8c1e-9a4d-4e7b-8c21-0a1b2c3d4e5f-"), None);
+        assert_eq!(super::uploaded_filename("Storgata 1, 1850 Mysen - se vedlegg i e-post fra oss"), None);
+    }
+
     #[test]
     fn only_the_person_a_page_names_may_suggest_a_change_to_it() {
         assert!(is_responsible(Some(&user(Some("kari@vel.no"), &[])), &named("mailto:Kari@Vel.no", None)));