chatgui: local nicknames per channel member — edit via MemberPropsDialog, override display everywhere

tools/chatgui/db/db_manager.cpp

@@ -214,7 +214,7 @@ int DbManager::getChannelMemberCount(const QString& chId) const {
 QList<ChannelMember> DbManager::getChannelMembers(const QString& chId, int offset, int limit) const {
     QList<ChannelMember> list;
     QString sql = QStringLiteral(
-        "SELECT p.node_id, COALESCE(n.online,0), COALESCE(n.name,'')"
+        "SELECT p.node_id, COALESCE(n.online,0), COALESCE(n.name,''), COALESCE(p.local_nick,'')"
         " FROM \"%1\" p LEFT JOIN nodes n ON p.node_id=n.node_id"
         " ORDER BY n.online DESC, p.node_id ASC LIMIT ? OFFSET ?"
     ).arg(peersTableName(chId));
@@ -227,12 +227,27 @@ QList<ChannelMember> DbManager::getChannelMembers(const QString& chId, int offse
         m.nodeId = (quint64)sqlite3_column_int64(stmt, 0);
         m.online = sqlite3_column_int(stmt, 1) != 0;
         m.name = colText(stmt, 2);
+        m.localNick = colText(stmt, 3);
         list.append(m);
     }
     sqlite3_finalize(stmt);
     return list;
 }
 
+QMap<quint64, QString> DbManager::getLocalNicknames(const QString& chId) const {
+    QMap<quint64, QString> m;
+    if (!m_db) return m;
+    QString sql = QStringLiteral(
+        "SELECT node_id, local_nick FROM \"%1\" WHERE local_nick IS NOT NULL AND local_nick != ''"
+    ).arg(peersTableName(chId));
+    sqlite3_stmt* stmt = prepareOrNull(sql.toUtf8().constData());
+    if (!stmt) return m;
+    while (sqlite3_step(stmt) == SQLITE_ROW)
+        m.insert((quint64)sqlite3_column_int64(stmt, 0), colText(stmt, 1));
+    sqlite3_finalize(stmt);
+    return m;
+}
+
 void DbManager::cleanOrphanedPeers(const QString& chId) const {
     if (!m_db) return;
     QString sql = QStringLiteral(

tools/chatgui/db/db_manager.h

@@ -49,6 +49,7 @@ struct ChannelMember {
     quint64 nodeId = 0;
     bool    online = false;
     QString name;       // from nodes.name, empty if not set
+    QString localNick;  // from peers.local_nick override, empty if not set
 };
 
 struct NodeAddr {
@@ -96,6 +97,7 @@ public:
     QList<ChannelMember> getChannelMembers(const QString& chId, int offset, int limit) const;
     void cleanOrphanedPeers(const QString& chId) const;
     QString getDisplayName(quint64 nodeId) const;
+    QMap<quint64, QString> getLocalNicknames(const QString& chId) const;
 
     /* ── Узлы ── */
     QByteArray loadNodeInfo(quint64 nodeId) const;