fix (#5)

* state doesnt have pms

* andrei needs a linter

disco/state.py

@@ -195,7 +195,7 @@ class State(object):
         if event.channel.is_guild and event.channel.guild_id in self.guilds:
             del self.guilds[event.channel.id]
         elif event.channel.is_dm:
-            del self.pms[event.channel.id]
+            del self.dms[event.channel.id]
 
     def on_voice_state_update(self, event):
         # Happy path: we have the voice state and want to update/delete it

disco/types/channel.py

@@ -150,7 +150,7 @@ class Channel(Model, Permissible):
         Creates a new :class:`MessageIterator` for the channel with the given
         keyword arguments
         """
-        return MessageIterator(self.client, self.id, **kwargs)
+        return MessageIterator(self.client, self, **kwargs)
 
     @cached_property
     def guild(self):
@@ -313,7 +313,7 @@ class MessageIterator(object):
         Fills the internal buffer up with :class:`disco.types.message.Message` objects from the API
         """
         self._buffer = self.client.api.channels_messages_list(
-                self.channel,
+                self.channel.id,
                 before=self.before,
                 after=self.after,
                 limit=self.chunk_size)
@@ -326,9 +326,10 @@ class MessageIterator(object):
 
         if self.direction == self.Direction.UP:
             self.before = self._buffer[-1].id
+
         else:
             self._buffer.reverse()
-            self.after == self._buffer[-1].id
+            self.after = self._buffer[-1].id
 
     def next(self):
         return self.__next__()