RoomMemberEvent: make it sendable

To do that, both RoomMemberEvent and MemberEventContent got respective constructors.
Also: the fallback value for unknown _received_ membership types is now Undefined; it's not allowed in member events for sending (will fail on assertion now) because the server requires membership to be explicitly set.

1 files changed, 7 insertions, 3 deletions

diff --git a/events/roommemberevent.cpp b/events/roommemberevent.cpp
index 76df5f2e..a9e301a4 100644
--- a/events/roommemberevent.cpp
+++ b/events/roommemberevent.cpp
@@ -44,7 +44,7 @@ namespace QMatrixClient
                     return MembershipType(it - membershipStrings.begin());
 
             qCWarning(EVENTS) << "Unknown MembershipType: " << membershipString;
-            return MembershipType::Join;
+            return MembershipType::Undefined;
         }
     };
 }
@@ -58,7 +58,11 @@ MemberEventContent::MemberEventContent(const QJsonObject& json)
 void MemberEventContent::fillJson(QJsonObject* o) const
 {
     Q_ASSERT(o);
-    o->insert("membership", membershipStrings[membership]);
+    Q_ASSERT_X(membership != MembershipType::Undefined, __FUNCTION__,
+             "The key 'membership' must be explicit in MemberEventContent");
+    if (membership != MembershipType::Undefined)
+        o->insert("membership", membershipStrings[membership]);
     o->insert("displayname", displayName);
-    o->insert("avatar_url", avatarUrl.toString());
+    if (avatarUrl.isValid())
+        o->insert("avatar_url", avatarUrl.toString());
 }