This commit removes the 'email_token' field from the
'Stream' model, introduces a new model 'ChannelEmailAddress',
and backfills it.
This is a prep work towards our plan to generate unique
channel emails for different users, which can be used
to check post permissions at message send time.
`is_archived` field is added to the stream and types.
Include a new `archived_channeels` client capability, to allow clients
to access data on archived channels, without breaking
backwards-compatibility for existing clients that don't know how to
handle these.
Also, included `exclude_archived` parameter to `/get-streams`,
which defaults to `true` as basic clients may not be interested
in archived streams.
In zerver/models/streams.py, updates translated string for when everyone
can post to a stream/channel to use channel instead of stream.
Part of stream to channel rename project.
Adds nullable creator field, containing a reference to the user who
created the stream. When creating a stream, acting user is set as
the creator of the stream. Since API calls to create streams always
have an acting user, this field should always be set when streams
are created using the API.
Because streams can be created with no acting user, this field is
nullable. We try to backfill existing streams using RealmAuditLog table,
but not all streams are guaranteed to have a recorded create log. Thus
this new field is left null when it cannot be backfilled. We also set
this field to null when the creator user is deleted.
Prakhar Pratyush
Shubham Padia
sanchi-t
Anders Kaseorg
Kislay Verma
Lauryn Menard
tnmkr