This is controlled through the admin tab and a new field in the Realms table.
Notes:
* The admin tab setting takes a value in minutes, whereas the backend stores it
in seconds.
* This setting is unused when allow_message_editing is false.
* There is some generosity in how the limit is enforced. For instance, if the
user sees the hovering edit button, we ensure they have at least 5 seconds to
click it, and if the user gets to the message edit form, we ensure they have
at least 10 seconds to make the edit, by relaxing the limit.
* This commit also includes a countdown timer in the message edit form.
Resolves#903.
This is controlled through the admin tab and a new field in the Realms
table. This mirrors the behavior of the old hardcoded setting
feature_flags.disable_message_editing. Partially resolves#903.
This reverts commit e985b57259.
This commit will break production when we next do a release, because
we haven't done a migration to create Attachment objects for
previously uploaded files.
get_display_recipient's annotation clashes with other wrong annotations.
Fix those wrong annotations.
Since get_display_recipient returns a Union, use isinstance checks and
casts to make mypy checks succeed.
Identify functions which return QuerySets and give them a return type
`Sequence` with appropriate parameter. Typing them as QuerySet will
not be useful since generic stubs for QuerySets are not available and
not knowing the type of QuerySets is hardly useful for type checking.
generate_random_token used to return a value of type six.binary_type
and its return type was annotated as `str`. This commit fixes that
by making it return a value of type `six.text_type` and updating
the annotation accordingly.
Also fix clashing annnotations.
Change choices of UserProfile.avatar_sources and UserProfile.tutorial_status
from str literals to unicode literals. This is done because these fields
are CharFields, which are of type `six.text_type`. So the set of values
which they can take should also be of the type `six.text_type`.
Also fix clashing annotations.
Change `str` to `text_type` in annotations in zerver/models.py
related to realm emoji and realm filters.
Also fix clashing annotations in zerver/lib/bugdown/__init__.py.
This changes the type annotations for the cache keys in Zulip to be
consistently text_type, and updates the annotations for values that
are used as cache keys across the codebase.
