mirror of
https://github.com/overleaf/overleaf.git
synced 2024-12-29 09:53:00 +00:00
40 lines
1.3 KiB
CoffeeScript
40 lines
1.3 KiB
CoffeeScript
|
{db, ObjectId} = require "./mongojs"
|
||
|
|
async = require "async"
|
||
|
|
|
||
|
|
module.exports = MongoManager =
|
||
|
|
getLastCompressedUpdate: (doc_id, callback = (error, update) ->) ->
|
||
|
|
db.docHistory
|
||
|
|
.find(doc_id: ObjectId(doc_id.toString()))
|
||
|
|
.sort( "meta.end_ts": -1)
|
||
|
|
.limit(1)
|
||
|
|
.toArray (error, compressedUpdates) ->
|
||
|
|
return callback(error) if error?
|
||
|
|
return callback null, compressedUpdates[0] or null
|
||
|
|
|
||
|
|
deleteCompressedUpdate: (id, callback = (error) ->) ->
|
||
|
|
db.docHistory.remove({ _id: ObjectId(id.toString()) }, callback)
|
||
|
|
|
||
|
|
popLastCompressedUpdate: (doc_id, callback = (error, update) ->) ->
|
||
|
|
MongoManager.getLastCompressedUpdate doc_id, (error, update) ->
|
||
|
|
return callback(error) if error?
|
||
|
|
if update?
|
||
|
|
MongoManager.deleteCompressedUpdate update._id, (error) ->
|
||
|
|
return callback(error) if error?
|
||
|
|
callback null, update
|
||
|
|
else
|
||
|
|
callback null, null
|
||
|
|
|
||
|
|
insertCompressedUpdates: (doc_id, updates, callback = (error) ->) ->
|
||
|
|
jobs = []
|
||
|
|
for update in updates
|
||
|
|
do (update) ->
|
||
|
|
jobs.push (callback) -> MongoManager.insertCompressedUpdate doc_id, update, callback
|
||
|
|
async.series jobs, callback
|
||
|
|
|
||
|
|
insertCompressedUpdate: (doc_id, update, callback = (error) ->) ->
|
||
|
|
db.docHistory.insert {
|
||
|
|
doc_id: ObjectId(doc_id.toString())
|
||
|
|
op: update.op
|
||
|
|
meta: update.meta
|
||
|
|
v: update.v
|
||
|
|
}, callback
|