aliasing can now move things around

web/src/pages/admin/table_definition/loader.rs

@@ -194,6 +194,7 @@ pub(crate) async fn load_page(
                 .find(|table| table.name == inputs.selection.table)
                 .map(|table| TableDetailView {
                     id: table.id,
+                    row_version: table.row_version,
                     columns: table
                         .columns
                         .iter()

web/src/pages/admin/table_definition/logic.rs

@@ -363,6 +363,7 @@ pub(crate) async fn set_column_presentation(
         profile_name: form.profile.clone(),
         table_name: form.table.clone(),
         columns,
+        expected_row_version: form.expected_row_version,
     };
     let Ok(request) = authenticated_request(&headers, request) else {
         return Redirect::to("/login").into_response();

web/src/pages/admin/table_definition/state.rs

@@ -80,6 +80,7 @@ impl TableSummary {
 #[derive(Clone, Debug)]
 pub(crate) struct TableDetailView {
     pub id: i64,
+    pub row_version: i64,
     pub row_display_columns: Vec<String>,
     pub columns: Vec<DetailColumn>,
     pub scripts: Vec<ScriptView>,
@@ -181,6 +182,8 @@ pub(crate) struct PresentationForm {
     #[serde(default)]
     pub table: String,
     #[serde(default)]
+    pub expected_row_version: i64,
+    #[serde(default)]
     pub column_ids: Vec<i64>,
     #[serde(default)]
     pub aliases: Vec<String>,
@@ -387,6 +390,7 @@ mod tests {
     fn provenance_and_renameability_are_independent() {
         let detail = TableDetailView {
             id: 1,
+            row_version: 1,
             row_display_columns: Vec::new(),
             scripts: Vec::new(),
             columns: vec![

web/src/pages/admin/table_definition/ui.rs

@@ -237,6 +237,7 @@ mod tests {
             link_targets: vec![table("invoice", "dynamic"), table("accounts", "system")],
             detail: Some(TableDetailView {
                 id: 7,
+                row_version: 1,
                 row_display_columns: vec!["number".to_string()],
                 scripts: Vec::new(),
                 columns: vec![DetailColumn {
@@ -377,6 +378,7 @@ mod tests {
 
         assert!(html.contains(r#"hx-post="/admin/tables/presentation""#), "{html}");
         assert!(html.contains(r#"name="column_ids" value="1""#), "{html}");
+        assert!(html.contains(r#"name="expected_row_version" value="1""#), "{html}");
         assert!(html.contains(r#"name="aliases" value="number""#), "{html}");
         assert!(html.contains(r#"name="action" value="save""#), "{html}");
     }

web/templates/pages/admin/table_definition/columns_panel.html

@@ -32,6 +32,7 @@
             hx-target="#table-panel" hx-swap="innerHTML">
         <input type="hidden" name="profile" value="{{ page.selection.profile }}">
         <input type="hidden" name="table" value="{{ page.selection.table }}">
+        <input type="hidden" name="expected_row_version" value="{{ detail.row_version }}">
         <div class="form-grid">
           {% for column in detail.columns %}
             <input type="hidden" name="column_ids" value="{{ column.column_id }}">