id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
31700	Highlight destructive operations in makemigrations output	Tom Forbes	nobody	"Makemigrations should highlight destructive and potentially destructive operations in the console output. We advise that makemigrations is only a code generator people sometimes apply them without looking. Highlighting dangerous operations in the output will make them stand out, and might help them notice issues before they blindly apply.

For example:

{{{
$ ./manage.py makemigrations ...
Migrations for 'some_app':
  some_app/migrations/0002_delete.py
    - Delete model SomeModel
    + Add model AnotherModel
    ~ Alter field X on Y
}}}

We can use `-` as a prefix for known destructive operations, `+` for ""safe"" operations and `~` for possibly-destructive operations, colour coded as red, green and yellow respectively.

Mailing list discussion: https://groups.google.com/d/msg/django-developers/A0m8YkPKpZo/Yx8l2P8EAQAJ"	New feature	new	Migrations	dev	Normal				Unreviewed	0	0	0	0	0	0