Track changes based on flag on op, not global setting

services/document-updater/app.coffee

@@ -45,7 +45,6 @@ app.post   '/project/:project_id/doc/:doc_id/flush', HttpController.flushDocIfLo
 app.delete '/project/:project_id/doc/:doc_id',       HttpController.flushAndDeleteDoc
 app.delete '/project/:project_id',                   HttpController.deleteProject
 app.post   '/project/:project_id/flush',             HttpController.flushProject
-app.post   '/project/:project_id/track_changes',     HttpController.setTrackChanges
 
 app.get '/total', (req, res)->
 	timer = new Metrics.Timer("http.allDocList")	

services/document-updater/app/coffee/DocumentManager.coffee

@@ -13,18 +13,18 @@ module.exports = DocumentManager =
 			timer.done()
 			_callback(args...)
 
-		RedisManager.getDoc project_id, doc_id, (error, lines, version, track_changes, track_changes_entries) ->
+		RedisManager.getDoc project_id, doc_id, (error, lines, version, track_changes_entries) ->
 			return callback(error) if error?
 			if !lines? or !version?
-				logger.log {project_id, doc_id, track_changes}, "doc not in redis so getting from persistence API"
-				PersistenceManager.getDoc project_id, doc_id, (error, lines, version, track_changes, track_changes_entries) ->
+				logger.log {project_id, doc_id}, "doc not in redis so getting from persistence API"
+				PersistenceManager.getDoc project_id, doc_id, (error, lines, version, track_changes_entries) ->
 					return callback(error) if error?
-					logger.log {project_id, doc_id, lines, version, track_changes}, "got doc from persistence API"
-					RedisManager.putDocInMemory project_id, doc_id, lines, version, track_changes, track_changes_entries, (error) ->
+					logger.log {project_id, doc_id, lines, version}, "got doc from persistence API"
+					RedisManager.putDocInMemory project_id, doc_id, lines, version, track_changes_entries, (error) ->
 						return callback(error) if error?
-						callback null, lines, version, track_changes, track_changes_entries, false
+						callback null, lines, version, track_changes_entries, false
 			else
-				callback null, lines, version, track_changes, track_changes_entries, true
+				callback null, lines, version, track_changes_entries, true
 
 	getDocAndRecentOps: (project_id, doc_id, fromVersion, _callback = (error, lines, version, recentOps) ->) ->
 		timer = new Metrics.Timer("docManager.getDocAndRecentOps")
@@ -90,14 +90,14 @@ module.exports = DocumentManager =
 		callback = (args...) ->
 			timer.done()
 			_callback(args...)
-		RedisManager.getDoc project_id, doc_id, (error, lines, version, track_changes, track_changes_entries) ->
+		RedisManager.getDoc project_id, doc_id, (error, lines, version, track_changes_entries) ->
 			return callback(error) if error?
 			if !lines? or !version?
 				logger.log project_id: project_id, doc_id: doc_id, "doc is not loaded so not flushing"
 				callback null  # TODO: return a flag to bail out, as we go on to remove doc from memory?
 			else
 				logger.log project_id: project_id, doc_id: doc_id, version: version, "flushing doc"
-				PersistenceManager.setDoc project_id, doc_id, lines, version, track_changes, track_changes_entries, (error) ->
+				PersistenceManager.setDoc project_id, doc_id, lines, version, track_changes_entries, (error) ->
 					return callback(error) if error?
 					callback null
 
@@ -119,12 +119,6 @@ module.exports = DocumentManager =
 			RedisManager.removeDocFromMemory project_id, doc_id, (error) ->
 				return callback(error) if error?
 				callback null
-	
-	setTrackChanges: (project_id, doc_id, track_changes_on, callback = (error) ->) ->
-		RedisManager.setTrackChanges project_id, doc_id, track_changes_on, (error) ->
-			return callback(error) if error?
-			WebRedisManager.sendData {project_id, doc_id, track_changes_on}
-			callback()
 
 	getDocWithLock: (project_id, doc_id, callback = (error, lines, version) ->) ->
 		UpdateManager = require "./UpdateManager"
@@ -145,7 +139,3 @@ module.exports = DocumentManager =
 	flushAndDeleteDocWithLock: (project_id, doc_id, callback = (error) ->) ->
 		UpdateManager = require "./UpdateManager"
 		UpdateManager.lockUpdatesAndDo DocumentManager.flushAndDeleteDoc, project_id, doc_id, callback
-
-	setTrackChangesWithLock: (project_id, doc_id, track_changes_on, callback = (error) ->) ->
-		UpdateManager = require "./UpdateManager"
-		UpdateManager.lockUpdatesAndDo DocumentManager.setTrackChanges, project_id, doc_id, track_changes_on, callback

services/document-updater/app/coffee/HttpController.coffee

@@ -96,15 +96,4 @@ module.exports = HttpController =
 			return next(error) if error?
 			logger.log project_id: project_id, "deleted project via http"
 			res.send 204 # No Content
-	
-	setTrackChanges: (req, res, next = (error) ->) ->
-		project_id = req.params.project_id
-		track_changes_on = req.body.on
-		if !track_changes_on?
-			return res.send 400
-		track_changes_on = !!track_changes_on # Make boolean
-		logger.log {project_id, track_changes_on}, "turning on track changes via http"
-		ProjectManager.setTrackChangesWithLocks project_id, track_changes_on, (error) ->
-			return next(error) if error?
-			res.send 204
 

services/document-updater/app/coffee/PersistenceManager.coffee

@@ -10,7 +10,7 @@ logger = require "logger-sharelatex"
 MAX_HTTP_REQUEST_LENGTH = 5000 # 5 seconds
 
 module.exports = PersistenceManager =
-	getDoc: (project_id, doc_id, _callback = (error, lines, version, track_changes, track_changes_entries) ->) ->
+	getDoc: (project_id, doc_id, _callback = (error, lines, version, track_changes_entries) ->) ->
 		timer = new Metrics.Timer("persistenceManager.getDoc")
 		callback = (args...) ->
 			timer.done()
@@ -39,13 +39,13 @@ module.exports = PersistenceManager =
 					return callback(new Error("web API response had no doc lines"))
 				if !body.version? or not body.version instanceof Number
 					return callback(new Error("web API response had no valid doc version"))
-				return callback null, body.lines, body.version, body.track_changes, body.track_changes_entries
+				return callback null, body.lines, body.version, body.track_changes_entries
 			else if res.statusCode == 404
 				return callback(new Errors.NotFoundError("doc not not found: #{url}"))
 			else
 				return callback(new Error("error accessing web API: #{url} #{res.statusCode}"))
 
-	setDoc: (project_id, doc_id, lines, version, track_changes, track_changes_entries, _callback = (error) ->) ->
+	setDoc: (project_id, doc_id, lines, version, track_changes_entries, _callback = (error) ->) ->
 		timer = new Metrics.Timer("persistenceManager.setDoc")
 		callback = (args...) ->
 			timer.done()
@@ -57,7 +57,6 @@ module.exports = PersistenceManager =
 			method: "POST"
 			json:
 				lines: lines
-				track_changes: track_changes
 				track_changes_entries: track_changes_entries
 				version: version
 			auth:

services/document-updater/app/coffee/RedisManager.coffee

@@ -13,7 +13,7 @@ minutes = 60 # seconds for Redis expire
 module.exports = RedisManager =
 	rclient: rclient
 
-	putDocInMemory : (project_id, doc_id, docLines, version, track_changes, track_changes_entries, _callback)->
+	putDocInMemory : (project_id, doc_id, docLines, version, track_changes_entries, _callback)->
 		timer = new metrics.Timer("redis.put-doc")
 		callback = (error) ->
 			timer.done()
@@ -23,7 +23,6 @@ module.exports = RedisManager =
 		multi.set keys.docLines(doc_id:doc_id), JSON.stringify(docLines)
 		multi.set keys.projectKey({doc_id:doc_id}), project_id
 		multi.set keys.docVersion(doc_id:doc_id), version
-		multi.set keys.trackChangesEnabled(doc_id:doc_id), if track_changes then "1" else "0"
 		multi.set keys.trackChangesEntries(doc_id:doc_id), JSON.stringify(track_changes_entries)
 		multi.exec (error) ->
 			return callback(error) if error?
@@ -43,36 +42,32 @@ module.exports = RedisManager =
 		multi.del keys.docLines(doc_id:doc_id)
 		multi.del keys.projectKey(doc_id:doc_id)
 		multi.del keys.docVersion(doc_id:doc_id)
-		multi.del keys.trackChangesEnabled(doc_id:doc_id)
 		multi.del keys.trackChangesEntries(doc_id:doc_id)
 		multi.exec (error) ->
 			return callback(error) if error?
 			rclient.srem keys.docsInProject(project_id:project_id), doc_id, callback
 
-	getDoc : (project_id, doc_id, callback = (error, lines, version, track_changes, track_changes_entries) ->)->
+	getDoc : (project_id, doc_id, callback = (error, lines, version, track_changes_entries) ->)->
 		timer = new metrics.Timer("redis.get-doc")
 		multi = rclient.multi()
 		multi.get keys.docLines(doc_id:doc_id)
 		multi.get keys.docVersion(doc_id:doc_id)
 		multi.get keys.projectKey(doc_id:doc_id)
-		multi.get keys.trackChangesEnabled(doc_id:doc_id)
 		multi.get keys.trackChangesEntries(doc_id:doc_id)
-		multi.exec (error, result)->
+		multi.exec (error, [docLines, version, doc_project_id, track_changes_entries])->
 			timer.done()
 			return callback(error) if error?
 			try
-				docLines = JSON.parse result[0]
-				track_changes_entries = JSON.parse result[4]
+				docLines = JSON.parse docLines
+				track_changes_entries = JSON.parse track_changes_entries
 			catch e
 				return callback(e)
-			version = parseInt(result[1] or 0, 10)
-			doc_project_id = result[2]
-			track_changes = (result[3] == "1")
+			version = parseInt(version or 0, 10)
 			# check doc is in requested project
 			if doc_project_id? and doc_project_id isnt project_id
 				logger.error project_id: project_id, doc_id: doc_id, doc_project_id: doc_project_id, "doc not in project"
 				return callback(new Errors.NotFoundError("document not found"))
-			callback null, docLines, version, track_changes, track_changes_entries
+			callback null, docLines, version, track_changes_entries
 
 	getDocVersion: (doc_id, callback = (error, version) ->) ->
 		rclient.get keys.docVersion(doc_id: doc_id), (error, version) ->
@@ -134,7 +129,3 @@ module.exports = RedisManager =
 
 	getDocIdsInProject: (project_id, callback = (error, doc_ids) ->) ->
 		rclient.smembers keys.docsInProject(project_id: project_id), callback
-
-	setTrackChanges: (project_id, doc_id, track_changes_on, callback = (error) ->) ->
-		value = (if track_changes_on then "1" else "0")
-		rclient.set keys.trackChangesEnabled({doc_id}), value, callback

services/document-updater/app/coffee/TrackChangesManager.coffee

@@ -1,12 +1,12 @@
 ChangesTracker = require "./ChangesTracker"
 
 module.exports = TrackChangesManager =
-	applyUpdate: (project_id, doc_id, entries = {}, updates = [], track_changes, callback = (error, new_entries) ->) ->
+	applyUpdate: (project_id, doc_id, entries = {}, updates = [], callback = (error, new_entries) ->) ->
 		{changes, comments} = entries
 		changesTracker = new ChangesTracker(changes, comments)
-		changesTracker.track_changes = track_changes
 		for update in updates
+			changesTracker.track_changes = !!update.meta.tc
 			for op in update.op
-				changesTracker.applyOp(op, { user_id: update.meta?.user_id,  })
+				changesTracker.applyOp(op, { user_id: update.meta?.user_id })
 		{changes, comments} = changesTracker
 		callback null, {changes, comments}

services/document-updater/app/coffee/UpdateManager.coffee

@@ -48,13 +48,13 @@ module.exports = UpdateManager =
 
 	applyUpdate: (project_id, doc_id, update, callback = (error) ->) ->
 		UpdateManager._sanitizeUpdate update
-		DocumentManager.getDoc project_id, doc_id, (error, lines, version, track_changes, track_changes_entries) ->
+		DocumentManager.getDoc project_id, doc_id, (error, lines, version, track_changes_entries) ->
 			return callback(error) if error?
 			if !lines? or !version?
 				return callback(new Errors.NotFoundError("document not found: #{doc_id}"))
 			ShareJsUpdateManager.applyUpdate project_id, doc_id, update, lines, version, (error, updatedDocLines, version, appliedOps) ->
 				return callback(error) if error?
-				TrackChangesManager.applyUpdate project_id, doc_id, track_changes_entries, appliedOps, track_changes, (error, new_track_changes_entries) ->
+				TrackChangesManager.applyUpdate project_id, doc_id, track_changes_entries, appliedOps, (error, new_track_changes_entries) ->
 					return callback(error) if error?
 					logger.log doc_id: doc_id, version: version, "updating doc in redis"
 					RedisManager.updateDocument doc_id, updatedDocLines, version, appliedOps, new_track_changes_entries, (error) ->

services/document-updater/test/acceptance/coffee/TrackChangesTests.coffee

@@ -8,89 +8,51 @@ MockWebApi = require "./helpers/MockWebApi"
 DocUpdaterClient = require "./helpers/DocUpdaterClient"
 
 describe "Track changes", ->
-	describe "turning on track changes", ->
-		before (done) ->
-			DocUpdaterClient.subscribeToAppliedOps @appliedOpsListener = sinon.stub()
-			@project_id = DocUpdaterClient.randomId()
-			@docs = [{
-				id: doc_id0 = DocUpdaterClient.randomId()
-				lines: ["one", "two", "three"]
-				updatedLines: ["one", "one and a half", "two", "three"]
-			}, {
-				id: doc_id1 = DocUpdaterClient.randomId()
-				lines: ["four", "five", "six"]
-				updatedLines: ["four", "four and a half", "five", "six"]
-			}]
-			for doc in @docs
-				MockWebApi.insertDoc @project_id, doc.id, {
-					lines: doc.lines
-					version: 0
-				}
-			async.series @docs.map((doc) =>
-				(callback) =>
-					DocUpdaterClient.preloadDoc @project_id, doc.id, callback
-			), (error) =>
-				throw error if error?
-				setTimeout () =>
-					DocUpdaterClient.setTrackChangesOn @project_id, (error, res, body) =>
-						@statusCode = res.statusCode
-						done()
-				, 200
-
-		it "should return a 204 status code", ->
-			@statusCode.should.equal 204
-
-		it "should send a track changes message to real-time for each doc", ->
-			@appliedOpsListener.calledWith("applied-ops", JSON.stringify({
-				project_id: @project_id, doc_id: @docs[0].id, track_changes_on: true
-			})).should.equal true
-			@appliedOpsListener.calledWith("applied-ops", JSON.stringify({
-				project_id: @project_id, doc_id: @docs[1].id, track_changes_on: true
-			})).should.equal true
-		
-		it "should set the track changes key in redis", (done) ->
-			rclient.get "TrackChangesEnabled:#{@docs[0].id}", (error, value) =>
-				throw error if error?
-				value.should.equal "1"
-				rclient.get "TrackChangesEnabled:#{@docs[1].id}", (error, value) ->
-					throw error if error?
-					value.should.equal "1"
-					done()
-	
 	describe "tracking changes", ->
 		before (done) ->
 			@project_id = DocUpdaterClient.randomId()
+			@user_id = DocUpdaterClient.randomId()
 			@doc = {
-				id: doc_id0 = DocUpdaterClient.randomId()
-				lines: ["one", "two", "three"]
+				id: DocUpdaterClient.randomId()
+				lines: ["aaa"]
 			}
-			@update =
+			@updates = [{
 				doc: @doc.id
-				op: [{
-					i: "one and a half\n"
-					p: 4
-				}]
+				op: [{ i: "123", p: 1 }]
 				v: 0
-				meta:
-					user_id: @user_id = DocUpdaterClient.randomId()
+				meta: { user_id: @user_id }
+			}, {
+				doc: @doc.id
+				op: [{ i: "456", p: 5 }]
+				v: 1
+				meta: { user_id: @user_id, tc: 1 }
+			}, {
+				doc: @doc.id
+				op: [{ d: "12", p: 1 }]
+				v: 2
+				meta: { user_id: @user_id }
+			}]
 			MockWebApi.insertDoc @project_id, @doc.id, {
 				lines: @doc.lines
 				version: 0
 			}
+			jobs = []
+			for update in @updates
+				do (update) =>
+					jobs.push (callback) => DocUpdaterClient.sendUpdate @project_id, @doc.id, update, callback
 			DocUpdaterClient.preloadDoc @project_id, @doc.id, (error) =>
 				throw error if error?
-				DocUpdaterClient.setTrackChangesOn @project_id, (error, res, body) =>
+				async.series jobs, (error) ->
 					throw error if error?
-					DocUpdaterClient.sendUpdate @project_id, @doc.id, @update, (error) ->
-						throw error if error?
-						setTimeout done, 200
+					setTimeout done, 200
 		
 		it "should set the updated track changes entries in redis", (done) ->
+			console.log "TODO: GET ME FROM HTTP REQUEST"
 			rclient.get "TrackChangesEntries:#{@doc.id}", (error, value) =>
 				throw error if error?
 				entries = JSON.parse(value)
 				change = entries.changes[0]
-				change.op.should.deep.equal @update.op[0]
+				change.op.should.deep.equal { i: "456", p: 3 }
 				change.metadata.user_id.should.equal @user_id
 				done()
 

services/document-updater/test/unit/coffee/DocumentManager/DocumentManagerTests.coffee

@@ -24,7 +24,6 @@ describe "DocumentManager", ->
 		@lines = ["one", "two", "three"]
 		@version = 42
 		@track_changes_entries = { comments: "mock", entries: "mock" }
-		@track_changes_on = true
 
 	describe "flushAndDeleteDoc", ->
 		describe "successfully", ->
@@ -58,7 +57,7 @@ describe "DocumentManager", ->
 	describe "flushDocIfLoaded", ->
 		describe "when the doc is in Redis", ->
 			beforeEach ->
-				@RedisManager.getDoc = sinon.stub().callsArgWith(2, null, @lines, @version, @track_changes_on, @track_changes_entries)
+				@RedisManager.getDoc = sinon.stub().callsArgWith(2, null, @lines, @version, @track_changes_entries)
 				@PersistenceManager.setDoc = sinon.stub().yields()
 				@DocumentManager.flushDocIfLoaded @project_id, @doc_id, @callback
 
@@ -69,7 +68,7 @@ describe "DocumentManager", ->
 
 			it "should write the doc lines to the persistence layer", ->
 				@PersistenceManager.setDoc
-					.calledWith(@project_id, @doc_id, @lines, @version, @track_changes_on, @track_changes_entries)
+					.calledWith(@project_id, @doc_id, @lines, @version, @track_changes_entries)
 					.should.equal true
 			
 			it "should call the callback without error", ->
@@ -80,7 +79,7 @@ describe "DocumentManager", ->
 
 		describe "when the document is not in Redis", ->
 			beforeEach ->
-				@RedisManager.getDoc = sinon.stub().callsArgWith(2, null, null, null, null, null)
+				@RedisManager.getDoc = sinon.stub().callsArgWith(2, null, null, null, null)
 				@PersistenceManager.setDoc = sinon.stub().yields()
 				@DocOpsManager.flushDocOpsToMongo = sinon.stub().callsArgWith(2)
 				@DocumentManager.flushDocIfLoaded @project_id, @doc_id, @callback
@@ -103,7 +102,7 @@ describe "DocumentManager", ->
 	describe "getDocAndRecentOps", ->
 		describe "with a previous version specified", ->
 			beforeEach ->
-				@DocumentManager.getDoc = sinon.stub().callsArgWith(2, null, @lines, @version, @track_changes_on, @track_changes_entries)
+				@DocumentManager.getDoc = sinon.stub().callsArgWith(2, null, @lines, @version, @track_changes_entries)
 				@RedisManager.getPreviousDocOps = sinon.stub().callsArgWith(3, null, @ops)
 				@DocumentManager.getDocAndRecentOps @project_id, @doc_id, @fromVersion, @callback
 
@@ -125,7 +124,7 @@ describe "DocumentManager", ->
 
 		describe "with no previous version specified", ->
 			beforeEach ->
-				@DocumentManager.getDoc = sinon.stub().callsArgWith(2, null, @lines, @version, @track_changes_on, @track_changes_entries)
+				@DocumentManager.getDoc = sinon.stub().callsArgWith(2, null, @lines, @version, @track_changes_entries)
 				@RedisManager.getPreviousDocOps = sinon.stub().callsArgWith(3, null, @ops)
 				@DocumentManager.getDocAndRecentOps @project_id, @doc_id, -1, @callback
 
@@ -146,7 +145,7 @@ describe "DocumentManager", ->
 	describe "getDoc", ->
 		describe "when the doc exists in Redis", ->
 			beforeEach ->
-				@RedisManager.getDoc = sinon.stub().callsArgWith(2, null, @lines, @version, @track_changes_on, @track_changes_entries)
+				@RedisManager.getDoc = sinon.stub().callsArgWith(2, null, @lines, @version, @track_changes_entries)
 				@DocumentManager.getDoc @project_id, @doc_id, @callback
 
 			it "should get the doc from Redis", ->
@@ -155,7 +154,7 @@ describe "DocumentManager", ->
 					.should.equal true
 			
 			it "should call the callback with the doc info", ->
-				@callback.calledWith(null, @lines, @version, @track_changes_on, @track_changes_entries, true).should.equal true
+				@callback.calledWith(null, @lines, @version, @track_changes_entries, true).should.equal true
 
 			it "should time the execution", ->
 				@Metrics.Timer::done.called.should.equal true
@@ -163,7 +162,7 @@ describe "DocumentManager", ->
 		describe "when the doc does not exist in Redis", ->
 			beforeEach ->
 				@RedisManager.getDoc = sinon.stub().callsArgWith(2, null, null, null, null, null)
-				@PersistenceManager.getDoc = sinon.stub().callsArgWith(2, null, @lines, @version, @track_changes_on, @track_changes_entries)
+				@PersistenceManager.getDoc = sinon.stub().callsArgWith(2, null, @lines, @version, @track_changes_entries)
 				@RedisManager.putDocInMemory = sinon.stub().yields()
 				@DocumentManager.getDoc @project_id, @doc_id, @callback
 
@@ -179,11 +178,11 @@ describe "DocumentManager", ->
 
 			it "should set the doc in Redis", ->
 				@RedisManager.putDocInMemory
-					.calledWith(@project_id, @doc_id, @lines, @version, @track_changes_on, @track_changes_entries)
+					.calledWith(@project_id, @doc_id, @lines, @version, @track_changes_entries)
 					.should.equal true
 
 			it "should call the callback with the doc info", ->
-				@callback.calledWith(null, @lines, @version, @track_changes_on, @track_changes_entries, false).should.equal true
+				@callback.calledWith(null, @lines, @version, @track_changes_entries, false).should.equal true
 
 			it "should time the execution", ->
 				@Metrics.Timer::done.called.should.equal true
@@ -193,7 +192,7 @@ describe "DocumentManager", ->
 			beforeEach ->
 				@beforeLines = ["before", "lines"]
 				@afterLines = ["after", "lines"]
-				@DocumentManager.getDoc = sinon.stub().callsArgWith(2, null, @beforeLines, @version, @track_changes_on, @track_changes_entries, true)
+				@DocumentManager.getDoc = sinon.stub().callsArgWith(2, null, @beforeLines, @version, @track_changes_entries, true)
 				@DiffCodec.diffAsShareJsOp = sinon.stub().callsArgWith(2, null, @ops)
 				@UpdateManager.applyUpdate = sinon.stub().callsArgWith(3, null)
 				@DocumentManager.flushDocIfLoaded = sinon.stub().callsArg(2)

services/document-updater/test/unit/coffee/PersistenceManager/PersistenceManagerTests.coffee

@@ -19,7 +19,6 @@ describe "PersistenceManager", ->
 		@lines = ["one", "two", "three"]
 		@version = 42
 		@callback = sinon.stub()
-		@track_changes_on = true
 		@track_changes_entries = { comments: "mock", entries: "mock" }
 		@Settings.apis =
 			web:
@@ -34,7 +33,6 @@ describe "PersistenceManager", ->
 				@request.callsArgWith(1, null, {statusCode: 200}, JSON.stringify({
 					lines: @lines,
 					version: @version,
-					track_changes: @track_changes_on,
 					track_changes_entries: @track_changes_entries
 				}))
 				@PersistenceManager.getDoc(@project_id, @doc_id, @callback)
@@ -56,7 +54,7 @@ describe "PersistenceManager", ->
 					.should.equal true
 
 			it "should call the callback with the doc lines, version and track changes state", ->
-				@callback.calledWith(null, @lines, @version, @track_changes_on, @track_changes_entries).should.equal true
+				@callback.calledWith(null, @lines, @version, @track_changes_entries).should.equal true
 
 			it "should time the execution", ->
 				@Metrics.Timer::done.called.should.equal true
@@ -114,7 +112,7 @@ describe "PersistenceManager", ->
 		describe "with a successful response from the web api", ->
 			beforeEach ->
 				@request.callsArgWith(1, null, {statusCode: 200})
-				@PersistenceManager.setDoc(@project_id, @doc_id, @lines, @version, @track_changes_on, @track_changes_entries, @callback)
+				@PersistenceManager.setDoc(@project_id, @doc_id, @lines, @version, @track_changes_entries, @callback)
 
 			it "should call the web api", ->
 				@request
@@ -123,7 +121,6 @@ describe "PersistenceManager", ->
 						json:
 							lines: @lines
 							version: @version
-							track_changes: @track_changes_on
 							track_changes_entries: @track_changes_entries
 						method: "POST"
 						auth:
@@ -144,7 +141,7 @@ describe "PersistenceManager", ->
 		describe "when request returns an error", ->
 			beforeEach ->
 				@request.callsArgWith(1, @error = new Error("oops"), null, null)
-				@PersistenceManager.setDoc(@project_id, @doc_id, @lines, @version, @track_changes_on, @track_changes_entries, @callback)
+				@PersistenceManager.setDoc(@project_id, @doc_id, @lines, @version, @track_changes_entries, @callback)
 
 			it "should return the error", ->
 				@callback.calledWith(@error).should.equal true
@@ -155,7 +152,7 @@ describe "PersistenceManager", ->
 		describe "when the request returns 404", ->
 			beforeEach ->
 				@request.callsArgWith(1, null, {statusCode: 404}, "")
-				@PersistenceManager.setDoc(@project_id, @doc_id, @lines, @version, @track_changes_on, @track_changes_entries, @callback)
+				@PersistenceManager.setDoc(@project_id, @doc_id, @lines, @version, @track_changes_entries, @callback)
 				
 			it "should return a NotFoundError", ->
 				@callback.calledWith(new Errors.NotFoundError("not found")).should.equal true
@@ -166,7 +163,7 @@ describe "PersistenceManager", ->
 		describe "when the request returns an error status code", ->
 			beforeEach ->
 				@request.callsArgWith(1, null, {statusCode: 500}, "")
-				@PersistenceManager.setDoc(@project_id, @doc_id, @lines, @version, @track_changes_on, @track_changes_entries, @callback)
+				@PersistenceManager.setDoc(@project_id, @doc_id, @lines, @version, @track_changes_entries, @callback)
 				
 			it "should return an error", ->
 				@callback.calledWith(new Error("web api error")).should.equal true

services/document-updater/test/unit/coffee/RedisManager/RedisManagerTests.coffee

@@ -22,7 +22,6 @@ describe "RedisManager", ->
 				projectKey: ({doc_id}) -> "ProjectId:#{doc_id}"
 				pendingUpdates: ({doc_id}) -> "PendingUpdates:#{doc_id}"
 				docsInProject: ({project_id}) -> "DocsIn:#{project_id}"
-				trackChangesEnabled: ({doc_id}) -> "TrackChangesEnabled:#{doc_id}"
 				trackChangesEntries: ({doc_id}) -> "TrackChangesEntries:#{doc_id}"
 			"logger-sharelatex": @logger = { error: sinon.stub(), log: sinon.stub(), warn: sinon.stub() }
 			"./Metrics": @metrics =
@@ -40,11 +39,10 @@ describe "RedisManager", ->
 			@jsonlines = JSON.stringify @lines
 			@version = 42
 			@track_changes_on = true
-			@redis_track_changes_on = "1"
 			@track_changes_entries = { comments: "mock", entries: "mock" }
 			@json_track_changes_entries = JSON.stringify @track_changes_entries
 			@rclient.get = sinon.stub()
-			@rclient.exec = sinon.stub().callsArgWith(0, null, [@jsonlines, @version, @project_id, @redis_track_changes_on, @json_track_changes_entries])
+			@rclient.exec = sinon.stub().callsArgWith(0, null, [@jsonlines, @version, @project_id, @json_track_changes_entries])
 
 		describe "successfully", ->
 			beforeEach ->
@@ -60,11 +58,6 @@ describe "RedisManager", ->
 					.calledWith("DocVersion:#{@doc_id}")
 					.should.equal true
 			
-			it "should get the track changes state", ->
-				@rclient.get
-					.calledWith("TrackChangesEnabled:#{@doc_id}")
-					.should.equal true
-			
 			it "should get the track changes entries", ->
 				@rclient.get
 					.calledWith("TrackChangesEntries:#{@doc_id}")
@@ -72,13 +65,13 @@ describe "RedisManager", ->
 
 			it 'should return the document', ->
 				@callback
-					.calledWith(null, @lines, @version, @track_changes_on, @track_changes_entries)
+					.calledWith(null, @lines, @version, @track_changes_entries)
 					.should.equal true
 
 		describe "getDoc with an invalid project id", ->
 			beforeEach ->
 				@another_project_id = "project-id-456"
-				@rclient.exec = sinon.stub().callsArgWith(0, null, [@jsonlines, @version, @another_project_id, @redis_track_changes_on, @json_track_changes_entries])
+				@rclient.exec = sinon.stub().callsArgWith(0, null, [@jsonlines, @version, @another_project_id, @json_track_changes_entries])
 				@RedisManager.getDoc @project_id, @doc_id, @callback
 
 			it 'should return an error', ->
@@ -263,9 +256,8 @@ describe "RedisManager", ->
 			@rclient.exec.yields()
 			@lines = ["one", "two", "three"]
 			@version = 42
-			@track_changes_on = true
 			@track_changes_entries = { comments: "mock", entries: "mock" }
-			@RedisManager.putDocInMemory @project_id, @doc_id, @lines, @version, @track_changes_on, @track_changes_entries, done
+			@RedisManager.putDocInMemory @project_id, @doc_id, @lines, @version, @track_changes_entries, done
 		
 		it "should set the lines", ->
 			@rclient.set
@@ -282,11 +274,6 @@ describe "RedisManager", ->
 				.calledWith("TrackChangesEntries:#{@doc_id}", JSON.stringify(@track_changes_entries))
 				.should.equal true
 			
-		it "should set the track changes state", ->
-			@rclient.set
-				.calledWith("TrackChangesEnabled:#{@doc_id}", "1")
-				.should.equal true
-		
 		it "should set the project_id for the doc", ->
 			@rclient.set
 				.calledWith("ProjectId:#{@doc_id}", @project_id)

services/document-updater/test/unit/coffee/UpdateManager/UpdateManagerTests.coffee

@@ -158,11 +158,10 @@ describe "UpdateManager", ->
 			@updatedDocLines = ["updated", "lines"]
 			@version = 34
 			@lines = ["original", "lines"]
-			@track_changes_on = true
 			@track_changes_entries = { entries: "mock", comments: "mock" }
 			@updated_track_changes_entries = { entries: "updated", comments: "updated" }
 			@appliedOps = ["mock-applied-ops"]
-			@DocumentManager.getDoc = sinon.stub().yields(null, @lines, @version, @track_changes_on, @track_changes_entries)
+			@DocumentManager.getDoc = sinon.stub().yields(null, @lines, @version, @track_changes_entries)
 			@TrackChangesManager.applyUpdate = sinon.stub().yields(null, @updated_track_changes_entries)
 			@ShareJsUpdateManager.applyUpdate = sinon.stub().yields(null, @updatedDocLines, @version, @appliedOps)
 			@RedisManager.updateDocument = sinon.stub().yields()
@@ -179,7 +178,7 @@ describe "UpdateManager", ->
 			
 			it "should update the track changes entries", ->
 				@TrackChangesManager.applyUpdate
-					.calledWith(@project_id, @doc_id, @track_changes_entries, @appliedOps, @track_changes_on)
+					.calledWith(@project_id, @doc_id, @track_changes_entries, @appliedOps)
 					.should.equal true
 
 			it "should save the document", ->