Admin user search: Add wildcards to name search automatically and in the background

src/db_conn.base.rs

@@ -1488,7 +1488,7 @@ impl MedalConnection for Connection {
                          AND lastname ILIKE $2
                          ORDER BY id DESC
                          LIMIT 30";
-            Ok(self.query_map_many(query, &[&firstname, &lastname], |row| {
+            Ok(self.query_map_many(query, &[&format!("%{}%", firstname), &format!("%{}%", lastname)], |row| {
                        (row.get(0), row.get(1), row.get(2), row.get(3), row.get(4), row.get(5))
                    })
                    .unwrap())

src/db_conn_postgres.rs

@@ -1607,7 +1607,7 @@ impl MedalConnection for Connection {
                          AND lastname ILIKE $2
                          ORDER BY id DESC
                          LIMIT 30";
-            Ok(self.query_map_many(query, &[&firstname, &lastname], |row| {
+            Ok(self.query_map_many(query, &[&format!("%{}%", firstname), &format!("%{}%", lastname)], |row| {
                        (row.get(0), row.get(1), row.get(2), row.get(3), row.get(4), row.get(5))
                    })
                    .unwrap())

src/db_conn_sqlite_new.rs

@@ -1607,7 +1607,7 @@ impl MedalConnection for Connection {
                          AND lastname LIKE ?2
                          ORDER BY id DESC
                          LIMIT 30";
-            Ok(self.query_map_many(query, &[&firstname, &lastname], |row| {
+            Ok(self.query_map_many(query, &[&format!("%{}%", firstname), &format!("%{}%", lastname)], |row| {
                        (row.get(0), row.get(1), row.get(2), row.get(3), row.get(4), row.get(5))
                    })
                    .unwrap())

templates/default/admin.hbs

@@ -6,7 +6,7 @@
 <p>
    <form action="/admin/user/" method="post">
       Vorname:<br>
-      <input type="text" name="firstname" value="%">
+      <input type="text" name="firstname">
       <br>
       Nachname:<br>
       <input type="text" name="lastname" autofocus>
@@ -52,7 +52,7 @@
 </p>
 
 <h2>Wettbewerbs-Export</h2>
-<a href="/admin/contest/">Wettbewerbsübersicht</a>
+<a href="/admin/contest/">Wettbewerbsübersicht und -export</a>
 
 <h2>Datenbankstatus</h2>
 {{#if dbstatus_secret}}