MaxHistoryLength now has some sensible default value if the user set a negative one

src/bridge/bridge.cpp

@@ -1007,11 +1007,14 @@ void Bridge::send_room_history(const std::string& hostname, const std::string& c
 void Bridge::send_room_history(const std::string& hostname, std::string chan_name, const std::string& resource, const HistoryLimit& history_limit)
 {
 #ifdef USE_DATABASE
-  const auto coptions = Database::get_irc_channel_options_with_server_and_global_default(this->user_jid, hostname, chan_name);
+  const auto goptions = Database::get_global_options(this->user_jid);
-  auto limit = coptions.col<Database::MaxHistoryLength>();
+  log_debug(goptions.col<Database::MaxHistoryLength>());
+  auto limit = goptions.col<Database::MaxHistoryLength>();
+  if (limit < 0)
+    limit = 20;
   if (history_limit.stanzas >= 0 && history_limit.stanzas < limit)
     limit = history_limit.stanzas;
-  const auto result = Database::get_muc_logs(this->user_jid, chan_name, hostname, limit, history_limit.since, {}, Id::unset_value, Database::Paging::last);
+  const auto result = Database::get_muc_logs(this->user_jid, chan_name, hostname, static_cast<std::size_t>(limit), history_limit.since, {}, Id::unset_value, Database::Paging::last);
   const auto& lines = std::get<1>(result);
   chan_name.append(utils::empty_if_fixed_server("%" + hostname));
   for (const auto& line: lines)

src/database/database.cpp

@@ -162,10 +162,6 @@ Database::IrcChannelOptions Database::get_irc_channel_options_with_server_and_gl
   coptions.col<EncodingOut>() = get_first_non_empty(coptions.col<EncodingOut>(),
                                                     soptions.col<EncodingOut>());
 
-  coptions.col<MaxHistoryLength>() = get_first_non_empty(coptions.col<MaxHistoryLength>(),
-                                                         soptions.col<MaxHistoryLength>(),
-                                                         goptions.col<MaxHistoryLength>());
-
   return coptions;
 }
 

src/database/query.cpp

@@ -6,11 +6,6 @@ void actual_bind(Statement& statement, const std::string& value, int index)
   statement.bind_text(index, value);
 }
 
-void actual_bind(Statement& statement, const std::int64_t& value, int index)
-{
-  statement.bind_int64(index, value);
-}
-
 void actual_bind(Statement& statement, const OptionalBool& value, int index)
 {
   if (!value.is_set)

src/database/query.hpp

@@ -12,13 +12,14 @@
 #include <string>
 
 void actual_bind(Statement& statement, const std::string& value, int index);
-void actual_bind(Statement& statement, const std::int64_t& value, int index);
+void actual_bind(Statement& statement, const OptionalBool& value, int index);
-template <typename T, typename std::enable_if_t<std::is_integral<T>::value>* = 0>
+template <typename T>
 void actual_bind(Statement& statement, const T& value, int index)
 {
-  actual_bind(statement, static_cast<std::int64_t>(value), index);
+  static_assert(std::is_integral<T>::value,
+                "Only a string, an optional-bool or an integer can be used.");
+  statement.bind_int64(index, static_cast<int>(value));
 }
-void actual_bind(Statement& statement, const OptionalBool& value, int index);
 
 #ifdef DEBUG_SQL_QUERIES
 #include <utils/scopetimer.hpp>

src/utils/optional_bool.hpp

@@ -6,7 +6,7 @@ struct OptionalBool
 {
   OptionalBool() = default;
 
-  OptionalBool(bool value):
+  explicit OptionalBool(bool value):
   is_set(true), value(value) {}
 
   void set_value(bool value)