614439 - Downgrading from a Places branch version leaves user with double triggers.

Status: RESOLVED FIXED

(Toolkit :: Places, defect)

Description

[Marco Bonardo [:mak]]

New triggers are physical, old ones are temp, when downgrading users will have both.

We should either
- build a time machine
- fix all released versions
- make new triggers temp

The first option requires too much time.
The second option requires a long work of syncing across branches and cannot guarantee the result for all cases.
The third option could have a really ignorable hit on Ts, but it's largely easier, faster and safer to do. so we'll probably do that.

At least till Storage will have some migration stuff :(

Comment 1

[Marco Bonardo [:mak]]

Actually, spending time on the first option would be feasible, since once done I could go back and recover time. But I guess drivers won't be happy in the meanwhile.

Comment 2

[Marco Bonardo [:mak]]

this is blocking our Places branch merge.

Comment 3

[Marco Bonardo [:mak]]

Attachment: patch v1.0

Comment 4

[Dietrich Ayala (:dietrich)]

Comment on attachment 492968 [details] [diff] [review]
patch v1.0

looks fine, r=me

Comment 5

[Marco Bonardo [:mak]]

http://hg.mozilla.org/projects/places/rev/871fb4bfcce0

Comment 6

[Marco Bonardo [:mak]]

http://hg.mozilla.org/mozilla-central/rev/871fb4bfcce0

Comment 7

[Marco Bonardo [:mak]]

We should relnote in beta9 that it cannot downgrade to beta7 or previous beta versions (downgrading to 3.6.x or beta8 is fine instead).