bearbeiten Button für admin angepasst, zusage funktion auch hinzugefügt

app/main.py

@@ -108,6 +108,17 @@ def ensure_schema():
             created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
         )
         """,
+        """
+        CREATE TABLE IF NOT EXISTS concert_attendance (
+            concert_id INTEGER NOT NULL REFERENCES concerts(id) ON DELETE CASCADE,
+            user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+            status VARCHAR(20) NOT NULL CHECK (
+                status IN ('attending', 'maybe', 'ticket_search')
+            ),
+            updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            PRIMARY KEY (concert_id, user_id)
+        )
+        """,
     ]
 
     with get_db_connection() as connection:
@@ -1090,6 +1101,22 @@ def concert_detail(request: Request, concert_id: int):
             )
             photo_rows = cursor.fetchall()
 
+            cursor.execute(
+                """
+                SELECT
+                    concert_attendance.user_id,
+                    concert_attendance.status,
+                    users.display_name,
+                    users.username
+                FROM concert_attendance
+                JOIN users ON users.id = concert_attendance.user_id
+                WHERE concert_attendance.concert_id = %s
+                ORDER BY users.display_name NULLS LAST, users.username
+                """,
+                (concert_id,),
+            )
+            attendance_rows = cursor.fetchall()
+
     comments = [
         {
             "id": row[0],
@@ -1110,6 +1137,20 @@ def concert_detail(request: Request, concert_id: int):
         for row in photo_rows
     ]
 
+    attendance = [
+        {
+            "user_id": row[0],
+            "status": row[1],
+            "name": row[2] or row[3],
+        }
+        for row in attendance_rows
+    ]
+    attending_users = [item for item in attendance if item["status"] == "attending"]
+    current_attendance = next(
+        (item["status"] for item in attendance if item["user_id"] == user["id"]),
+        None,
+    )
+
     template = templates.get_template("concert_detail.html")
     return template.render(
         user=user,
@@ -1118,6 +1159,9 @@ def concert_detail(request: Request, concert_id: int):
         photos=photos,
         can_edit=can_edit_concert(user, concert),
         can_delete=can_delete_concert(user, concert),
+        current_attendance=current_attendance,
+        attending_users=attending_users,
+        attending_count=len(attending_users),
     )
 
 
@@ -1404,6 +1448,39 @@ def delete_concert(request: Request, concert_id: int):
     return RedirectResponse("/", status_code=303)
 
 
+@app.post("/concerts/{concert_id}/attendance")
+def set_attendance(
+    request: Request,
+    concert_id: int,
+    status: str = Form(...),
+):
+    user = get_current_user(request)
+
+    if not user:
+        return login_redirect(f"/concerts/{concert_id}")
+    if status not in {"attending", "maybe", "ticket_search"}:
+        return HTMLResponse("<h1>Ungültige Auswahl</h1>", status_code=400)
+    if not load_concert(concert_id):
+        return HTMLResponse("<h1>Konzert nicht gefunden</h1>", status_code=404)
+
+    with get_db_connection() as connection:
+        with connection.cursor() as cursor:
+            cursor.execute(
+                """
+                INSERT INTO concert_attendance (concert_id, user_id, status)
+                VALUES (%s, %s, %s)
+                ON CONFLICT (concert_id, user_id)
+                DO UPDATE SET
+                    status = EXCLUDED.status,
+                    updated_at = CURRENT_TIMESTAMP
+                """,
+                (concert_id, user["id"], status),
+            )
+        connection.commit()
+
+    return RedirectResponse(f"/concerts/{concert_id}#attendance", status_code=303)
+
+
 @app.post("/concerts/{concert_id}/comments")
 def add_comment(
     request: Request,

app/static/style.css

@@ -30,16 +30,6 @@ a {
     color: #ffffff;
 }
 
-.edit-button {
-    display: inline-block;
-    padding: 10px 14px;
-    background: #238636;
-    color: #ffffff;
-    border-radius: 9px;
-    text-decoration: none;
-    font-weight: bold;
-}
-
 .detail-actions {
     margin-top: 30px;
     display: flex;
@@ -51,26 +41,44 @@ a {
     margin: 0;
 }
 
-.delete-concert-button {
+.concert-action {
-    display: inline-block;
+    display: inline-flex;
-    padding: 10px 14px;
+    align-items: center;
-    background: #b42318;
+    justify-content: center;
+    min-height: 42px;
+    padding: 10px 16px;
     color: #ffffff;
     border: 0;
-    border-radius: 9px;
+    border-radius: 10px;
     font: inherit;
     font-weight: bold;
+    line-height: 1;
+    text-decoration: none;
     cursor: pointer;
+    transition: transform 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
 }
 
-.delete-concert-button:hover {
+.concert-action:hover {
-    background: #dc2626;
+    transform: translateY(-1px);
+    box-shadow: 0 5px 16px rgba(0, 0, 0, 0.25);
 }
 
-.edit-button:hover {
+.concert-action-edit {
+    background: #238636;
+}
+
+.concert-action-edit:hover {
     background: #2ea043;
 }
 
+.concert-action-delete {
+    background: #b42318;
+}
+
+.concert-action-delete:hover {
+    background: #dc2626;
+}
+
 .concert-detail {
     background: #161b22;
     border: 1px solid #30363d;
@@ -180,6 +188,70 @@ a {
     color: #8b949e;
 }
 
+.attendance-section {
+    margin-top: 35px;
+    padding: 25px;
+    background: #0d1117;
+    border: 1px solid #30363d;
+    border-radius: 12px;
+}
+
+.attendance-section h2 {
+    margin-top: 0;
+}
+
+.attendance-section > p {
+    color: #8b949e;
+}
+
+.attendance-actions {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 10px;
+    margin-top: 18px;
+}
+
+.attendance-actions form {
+    margin: 0;
+}
+
+.attendance-option {
+    padding: 10px 14px;
+    background: #161b22;
+    border: 1px solid #3d4856;
+    border-radius: 9px;
+    color: #e6edf3;
+    font: inherit;
+    font-weight: bold;
+    cursor: pointer;
+}
+
+.attendance-option:hover,
+.attendance-option.is-selected {
+    border-color: #58a6ff;
+    background: #1b3554;
+}
+
+.attendance-option.is-selected {
+    color: #ffffff;
+}
+
+.attendance-list {
+    margin-top: 20px;
+    color: #b8c1cc;
+}
+
+.attendance-list summary {
+    color: #58a6ff;
+    font-weight: bold;
+    cursor: pointer;
+}
+
+.attendance-list ul {
+    margin: 12px 0 0;
+    padding-left: 22px;
+}
+
 @media (max-width: 600px) {
 
     .container {

app/templates/concert_detail.html

@@ -173,8 +173,8 @@
 
             {% if can_edit %}
 
-                <div class="detail-actions">
+                <div class="detail-actions" aria-label="Konzert verwalten">
-                    <a href="/concerts/{{ concert.id }}/edit" class="edit-button">
+                    <a href="/concerts/{{ concert.id }}/edit" class="concert-action concert-action-edit">
                         ✏️ Konzert bearbeiten
                     </a>
 
@@ -185,7 +185,7 @@
                             action="/concerts/{{ concert.id }}/delete"
                             onsubmit="return confirm('Dieses Konzert wirklich löschen?');"
                         >
-                            <button type="submit" class="delete-concert-button">
+                            <button type="submit" class="concert-action concert-action-delete">
                                 🗑️ Konzert löschen
                             </button>
                         </form>
@@ -196,16 +196,67 @@
             {% endif %}
 
 
-            <section class="coming-soon">
+            <section class="attendance-section" id="attendance">
 
                 <h2>
-                    🐧 Community
+                    🐧 Wer ist dabei?
                 </h2>
 
-                <p>
+                <p>Wähle, wie es bei dir aussieht. Deine Auswahl kann jederzeit geändert werden.</p>
-                    Wer geht hin, wer ist interessiert?
+
-                    Kommentare und Teilnehmer folgen hier.
+                <div class="attendance-actions">
-                </p>
+
+                    <form method="post" action="/concerts/{{ concert.id }}/attendance">
+                        <input type="hidden" name="status" value="attending">
+                        <button
+                            type="submit"
+                            class="attendance-option {% if current_attendance == 'attending' %}is-selected{% endif %}"
+                        >
+                            ✓ Zugesagt
+                        </button>
+                    </form>
+
+                    <form method="post" action="/concerts/{{ concert.id }}/attendance">
+                        <input type="hidden" name="status" value="maybe">
+                        <button
+                            type="submit"
+                            class="attendance-option {% if current_attendance == 'maybe' %}is-selected{% endif %}"
+                        >
+                            ? Vielleicht
+                        </button>
+                    </form>
+
+                    <form method="post" action="/concerts/{{ concert.id }}/attendance">
+                        <input type="hidden" name="status" value="ticket_search">
+                        <button
+                            type="submit"
+                            class="attendance-option {% if current_attendance == 'ticket_search' %}is-selected{% endif %}"
+                        >
+                            🎟️ Suche Ticket
+                        </button>
+                    </form>
+
+                </div>
+
+                <details class="attendance-list">
+                    <summary>
+                        {{ attending_count }} Zusage{% if attending_count != 1 %}n{% endif %} anzeigen
+                    </summary>
+
+                    {% if attending_users %}
+
+                        <ul>
+                            {% for attendee in attending_users %}
+                                <li>{{ attendee.name }}</li>
+                            {% endfor %}
+                        </ul>
+
+                    {% else %}
+
+                        <p>Noch niemand hat zugesagt.</p>
+
+                    {% endif %}
+                </details>
 
             </section>
 

db/init/01_initial.sql

@@ -69,6 +69,16 @@ CREATE TABLE concert_photos (
     created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
 );
 
+CREATE TABLE concert_attendance (
+    concert_id INTEGER NOT NULL REFERENCES concerts(id) ON DELETE CASCADE,
+    user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    status VARCHAR(20) NOT NULL CHECK (
+        status IN ('attending', 'maybe', 'ticket_search')
+    ),
+    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    PRIMARY KEY (concert_id, user_id)
+);
+
 CREATE INDEX idx_concerts_start_datetime
     ON concerts(start_datetime);
 
@@ -83,3 +93,6 @@ CREATE INDEX idx_concert_comments_concert
 
 CREATE INDEX idx_concert_photos_concert
     ON concert_photos(concert_id, created_at);
+
+CREATE INDEX idx_concert_attendance_concert
+    ON concert_attendance(concert_id, status);

db/migrations/03_community.sql

@@ -48,3 +48,16 @@ CREATE TABLE IF NOT EXISTS concert_photos (
     path TEXT NOT NULL,
     created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
 );
+
+CREATE TABLE IF NOT EXISTS concert_attendance (
+    concert_id INTEGER NOT NULL REFERENCES concerts(id) ON DELETE CASCADE,
+    user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    status VARCHAR(20) NOT NULL CHECK (
+        status IN ('attending', 'maybe', 'ticket_search')
+    ),
+    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    PRIMARY KEY (concert_id, user_id)
+);
+
+CREATE INDEX IF NOT EXISTS idx_concert_attendance_concert
+    ON concert_attendance(concert_id, status);