kordophone-db: adds support for the Messages table

kordophone-db/src/schema.rs

@@ -1,3 +1,6 @@
+// When this file changes, run the following command to generate a new migration:
+// DATABASE_URL=/tmp/db.sql diesel migration generate --diff-schema create_conversations
+
 diesel::table! {
     conversations (id) {
         id -> Text,
@@ -11,7 +14,8 @@ diesel::table! {
 diesel::table! {
     participants (id) {
         id -> Integer,
-        display_name -> Text,
+        display_name -> Nullable<Text>,
+        is_me -> Bool,
     }
 }
 
@@ -22,6 +26,26 @@ diesel::table! {
     }
 }
 
+diesel::table! {
+    messages (id) {
+        id -> Text, // guid 
+        text -> Text, 
+        sender_participant_id -> Nullable<Integer>, 
+        date -> Timestamp, 
+    }
+}
+
+diesel::table! {
+    conversation_messages (conversation_id, message_id) {
+        conversation_id -> Text,  // guid
+        message_id -> Text,       // guid
+    }
+}
+
 diesel::joinable!(conversation_participants -> conversations (conversation_id));
 diesel::joinable!(conversation_participants -> participants (participant_id));
 diesel::allow_tables_to_appear_in_same_query!(conversations, participants, conversation_participants);
+
+diesel::joinable!(conversation_messages -> conversations (conversation_id));
+diesel::joinable!(conversation_messages -> messages (message_id));
+diesel::allow_tables_to_appear_in_same_query!(conversations, messages, conversation_messages);