Summary:
Ref T13077. This is mostly just a small cleanup change, even though the actual change is large.
We currently reference content and document objects from one another with `contentID` and `documentID`, but this means that `contentID` must be nullable. Switching to PHIDs allows the column to be non-nullable.
This also supports reorienting some current and future transactions around PHIDs, which is preferable for the API. In particular, I'm adding a "publish version X" transaction soon, and would rather callers pass a PHID than an ID or version number, since this will make the API more consistent and powerful.
Today, `contentID` gets used as a cheaty way to order documents by (content) edit time. Since PHIDs aren't orderable and stuff is going to become actually-revertible soon, replace this with an epoch timestamp.
Test Plan:
- Created, edited, moved, retitled, and deleted Phriction documents.
- Grepped for `documentID` and `contentID`.
- This probably breaks //something// but I'll be in this code for a bit and am likely to catch whatever breaks.
Reviewers: amckinley
Subscribers: PHID-OPKG-gm6ozazyms6q6i22gyam
Maniphest Tasks: T13077
Differential Revision: https://secure.phabricator.com/D19619
