previous support

keipack/stars/api_kei.py

@@ -31,13 +31,14 @@ class ApiKei(PageStar):
             kpid = form["kpid"]
             convid = form["convid"]
             message = form.get("message")
+            previous = form.get("previous")
             first = form.get("first", False)
 
             person = await asyncify(session.query(self.alchemy.get(KeiPerson)).filter_by(kpid=kpid).one_or_none)
             if person is None:
                 person = self.alchemy.get(KeiPerson)(kpid=kpid)
                 session.add(person)
-            message = self.alchemy.get(KeiMessage)(kei_person=person, message=message)
+            message = self.alchemy.get(KeiMessage)(kei_person=person, message=message, previous=previous)
             session.add(message)
             await asyncify(session.commit)
             # Find conversation
@@ -55,7 +56,8 @@ class ApiKei(PageStar):
                 try:
                     result = await conv.next(session=session,
                                              person=person,
-                                             message=message)
+                                             message=message,
+                                             previous=previous)
                 except StopAsyncIteration:
                     del self._conversations[convid]
                     continue

keipack/tables/keimessages.py

@@ -18,6 +18,10 @@ class KeiMessage:
     def kei_person(self):
         return relationship("KeiPerson", foreign_keys=self.kei_person_id, backref="kei_messages")
 
+    @declared_attr
+    def previous(self):
+        return Column(String)
+
     @declared_attr
     def message(self):
         return Column(String, nullable=False)

keipack/utils/conversation.py

@@ -10,6 +10,7 @@ class Conversation:
         self._person = None
         self._session = None
         self._message = None
+        self._previous = None
 
     async def _generator(self):
         yield
@@ -21,10 +22,11 @@ class Conversation:
         await conv.generator.asend(None)
         return conv
 
-    async def next(self, session, person, message):
+    async def next(self, session, person, message, previous):
         self._session = session
         self._person = person
         self._message = message
+        self._previous = previous
         reply = await self.generator.asend(None)
         return reply