github/overleaf
1
0
Fork 0
mirror of https://github.com/overleaf/overleaf.git synced 2025-01-23 05:42:55 +00:00
Code Issues Projects Releases Packages Wiki Activity

Make sure comment ids are unique

Browse source
This commit is contained in:
James Allen 2017-01-10 11:55:38 +01:00
parent be19532a1d
commit 540d0f7ec7
1 changed files with 14 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

15
services/document-updater/app/coffee/RangesTracker.coffee
View file

@ -35,7 +35,7 @@ load = (EventEmitter) ->
# * Inserts by another user will not combine with inserts by the first user. If they are in the
# middle of a previous insert by the first user, the original insert will be split into two.
constructor: (@changes = [], @comments = []) ->
@setIdSeed("")
@setIdSeed(RangesTracker.generateIdSeed())
getIdSeed: () ->
return @id_seed
@ -43,6 +43,19 @@ load = (EventEmitter) ->
setIdSeed: (seed) ->
@id_seed = seed
@id_increment = 0
@generateIdSeed: () ->
# Generate a the first 18 characters of Mongo ObjectId, leaving 6 for the increment part
# Reference: https://github.com/dreampulse/ObjectId.js/blob/master/src/main/javascript/Objectid.js
pid = Math.floor(Math.random() * (32767)).toString(16)
machine = Math.floor(Math.random() * (16777216)).toString(16)
timestamp = Math.floor(new Date().valueOf() / 1000).toString(16)
return '00000000'.substr(0, 8 - timestamp.length) + timestamp +
'000000'.substr(0, 6 - machine.length) + machine +
'0000'.substr(0, 4 - pid.length) + pid
@generateId: () ->
@generateId() + "000001"
newId: () ->
@id_increment++