Collapse a project's sessions by clicking its name

src/database.rs

@@ -257,6 +257,8 @@ pub struct Project {
     pub id: i32,
     pub name: String,
     pub path: String,
+    /// Sidebar state: hides this project's session rows.
+    pub collapsed: bool,
 }
 
 #[derive(Insertable)]
@@ -536,6 +538,18 @@ impl Database {
             .map_err(|error| error.to_string())
     }
 
+    pub fn set_project_collapsed(
+        &mut self,
+        project_id: i32,
+        collapsed: bool,
+    ) -> Result<(), String> {
+        diesel::update(projects::table.find(project_id))
+            .set(projects::collapsed.eq(collapsed))
+            .execute(&mut self.connection)
+            .map(|_| ())
+            .map_err(|error| error.to_string())
+    }
+
     pub fn delete_project(&mut self, project_id: i32) -> Result<(), String> {
         self.connection
             .transaction(|connection| {
@@ -863,6 +877,9 @@ mod tests {
 
         database.set_sidebar_collapsed(true).unwrap();
         database.set_last_project(Some(project.id)).unwrap();
+        assert!(!loaded[0].project.collapsed);
+        database.set_project_collapsed(project.id, true).unwrap();
+        assert!(database.load_projects().unwrap()[0].project.collapsed);
 
         database.delete_project(project.id).unwrap();
         assert!(database.load_projects().unwrap().is_empty());