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simplify HistoryIterator message ordering

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rename reverse -> oldest_first, which is more obvious what it does.
Then, honor it entirely - if you specify no `after` endpoint, we default
to the beginning of message history, similar to how `before` defaults to
the end of message history.

This is a breaking change, and will change the behavior of any iterator
that previously would have been returning messages in a weird order for
limits over 100

`for msg in history(reversed=True, limit=300)` would return the newest
300 messages, in a messed up order (100..0, 200..100, 300..200).
`for msg in history(oldest_first=True, limit=300)` will now return the
oldest 300 messages in order. And so on.

`for msg in history(after=msg)` is unchanged, this previously would
return the oldest 100 messages after `msg`, oldest->newest order, and
still will.
This commit is contained in:
khazhyk
2019-04-07 21:47:59 -07:00
parent 7078b665a3
commit 366dc4855b
4 changed files with 29 additions and 32 deletions
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8
discord/channel.py
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@ -265,7 +265,7 @@ class TextChannel(discord.abc.Messageable, discord.abc.GuildChannel, Hashable):
message_ids = [m.id for m in messages]
await self._state.http.delete_messages(self.id, message_ids)
async def purge(self, *, limit=100, check=None, before=None, after=None, around=None, reverse=False, bulk=True):
async def purge(self, *, limit=100, check=None, before=None, after=None, around=None, oldest_first=False, bulk=True):
"""|coro|
Purges a list of messages that meet the criteria given by the predicate
@ -306,8 +306,8 @@ class TextChannel(discord.abc.Messageable, discord.abc.GuildChannel, Hashable):
Same as ``after`` in :meth:`history`.
around
Same as ``around`` in :meth:`history`.
reverse
Same as ``reverse`` in :meth:`history`.
oldest_first
Same as ``oldest_first`` in :meth:`history`.
bulk: class:`bool`
If True, use bulk delete. bulk=False is useful for mass-deleting
a bot's own messages without manage_messages. When True, will fall
@ -330,7 +330,7 @@ class TextChannel(discord.abc.Messageable, discord.abc.GuildChannel, Hashable):
if check is None:
check = lambda m: True
iterator = self.history(limit=limit, before=before, after=after, reverse=reverse, around=around)
iterator = self.history(limit=limit, before=before, after=after, oldest_first=oldest_first, around=around)
ret = []
count = 0