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91 lines
3.9 KiB
CoffeeScript
91 lines
3.9 KiB
CoffeeScript
MongoManager = require "./MongoManager"
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Errors = require "./Errors"
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logger = require "logger-sharelatex"
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_ = require "underscore"
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DocArchive = require "./DocArchiveManager"
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module.exports = DocManager =
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# TODO: For historical reasons, the doc version is currently stored in the docOps
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# collection (which is all that this collection contains). In future, we should
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# migrate this version property to be part of the docs collection, to guarantee
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# consitency between lines and version when writing/reading, and for a simpler schema.
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getDoc: (project_id, doc_id, filter = { version: false }, callback = (error, doc) ->) ->
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MongoManager.findDoc project_id, doc_id, (err, doc)->
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if err?
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return callback(err)
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else if !doc?
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return callback new Errors.NotFoundError("No such doc: #{doc_id} in project #{project_id}")
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else if doc?.inS3
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DocArchive.unarchiveDoc project_id, doc_id, (err)->
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if err?
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logger.err err:err, project_id:project_id, doc_id:doc_id, "error unarchiving doc"
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return callback(err)
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DocManager.getDoc project_id, doc_id, filter, callback
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else
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if filter.version
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MongoManager.getDocVersion doc_id, (error, version) ->
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return callback(error) if error?
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doc.version = version
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callback err, doc
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else
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callback err, doc
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getAllNonDeletedDocs: (project_id, callback = (error, docs) ->) ->
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DocArchive.unArchiveAllDocs project_id, (error) ->
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MongoManager.getProjectsDocs project_id, false, (error, docs) ->
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if err?
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return callback(error)
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else if !docs?
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return callback new Errors.NotFoundError("No docs for project #{project_id}")
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else
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return callback(null, docs)
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updateDoc: (project_id, doc_id, lines, version, callback = (error, modified, rev) ->) ->
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DocManager.getDoc project_id, doc_id, {version: true}, (err, doc)->
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if err? and !(err instanceof Errors.NotFoundError)
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logger.err project_id: project_id, doc_id: doc_id, err:err, "error getting document for update"
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return callback(err)
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isNewDoc = lines.length == 0
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linesAreSame = _.isEqual(doc?.lines, lines)
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if version?
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versionsAreSame = (doc?.version == version)
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else
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versionsAreSame = true
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if linesAreSame and versionsAreSame and !isNewDoc
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logger.log project_id: project_id, doc_id: doc_id, rev: doc?.rev, "doc lines have not changed - not updating"
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return callback null, false, doc?.rev
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else
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oldRev = doc?.rev || 0
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logger.log {
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project_id: project_id
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doc_id: doc_id,
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oldDocLines: doc?.lines
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newDocLines: lines
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rev: oldRev
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oldVersion: doc?.version
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newVersion: version
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}, "updating doc lines"
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MongoManager.upsertIntoDocCollection project_id, doc_id, lines, (error)->
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return callback(callback) if error?
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# TODO: While rolling out this code, setting the version via the docstore is optional,
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# so if it hasn't been passed, just ignore it. Once the docupdater has totally
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# handed control of this to the docstore, we can assume it will always be passed
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# and an error guard on it not being set instead.
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if version?
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MongoManager.setDocVersion doc_id, version, (error) ->
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return callback(error) if error?
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callback null, true, oldRev + 1 # rev will have been incremented in mongo by MongoManager.updateDoc
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else
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callback null, true, oldRev + 1 # rev will have been incremented in mongo by MongoManager.updateDoc
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deleteDoc: (project_id, doc_id, callback = (error) ->) ->
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DocManager.getDoc project_id, doc_id, { version: false }, (error, doc) ->
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return callback(error) if error?
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return callback new Errors.NotFoundError("No such project/doc to delete: #{project_id}/#{doc_id}") if !doc?
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MongoManager.upsertIntoDocCollection project_id, doc_id, doc.lines, (error) ->
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return callback(error) if error?
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MongoManager.markDocAsDeleted doc_id, (error) ->
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return callback(error) if error?
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callback()
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