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79 lines
3 KiB
CoffeeScript
79 lines
3 KiB
CoffeeScript
{db, ObjectId} = require "./mongojs"
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PackManager = require "./PackManager"
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async = require "async"
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_ = require "underscore"
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module.exports = MongoManager =
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getLastCompressedUpdate: (doc_id, callback = (error, update) ->) ->
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db.docHistory
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.find(doc_id: ObjectId(doc_id.toString()), {pack: {$slice:-1}}) # only return the last entry in a pack
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.sort( v: -1 )
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.limit(1)
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.toArray (error, compressedUpdates) ->
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return callback(error) if error?
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callback null, compressedUpdates[0] or null
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peekLastCompressedUpdate: (doc_id, callback = (error, update, version) ->) ->
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# under normal use we pass back the last update as
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# callback(null,update,version).
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#
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# when we have an existing last update but want to force a new one
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# to start, we pass it back as callback(null,null,version), just
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# giving the version so we can check consistency.
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MongoManager.getLastCompressedUpdate doc_id, (error, update) ->
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return callback(error) if error?
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if update?
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if update.broken
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# the update is marked as broken so we will force a new op
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return callback null, null
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else if update.pack?
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return callback null, update, update.pack[0]?.v
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else
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return callback null, update, update.v
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else
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PackManager.getLastPackFromIndex doc_id, (error, pack) ->
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return callback(error) if error?
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return callback(null, null, pack.v_end) if pack?.inS3? and pack?.v_end?
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callback null, null
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backportProjectId: (project_id, doc_id, callback = (error) ->) ->
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db.docHistory.update {
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doc_id: ObjectId(doc_id.toString())
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project_id: { $exists: false }
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}, {
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$set: { project_id: ObjectId(project_id.toString()) }
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}, {
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multi: true
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}, callback
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getProjectMetaData: (project_id, callback = (error, metadata) ->) ->
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db.projectHistoryMetaData.find {
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project_id: ObjectId(project_id.toString())
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}, (error, results) ->
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return callback(error) if error?
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callback null, results[0]
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setProjectMetaData: (project_id, metadata, callback = (error) ->) ->
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db.projectHistoryMetaData.update {
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project_id: ObjectId(project_id)
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}, {
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$set: metadata
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}, {
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upsert: true
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}, callback
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ensureIndices: () ->
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# For finding all updates that go into a diff for a doc
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db.docHistory.ensureIndex { doc_id: 1, v: 1 }, { background: true }
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# For finding all updates that affect a project
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db.docHistory.ensureIndex { project_id: 1, "meta.end_ts": 1, "meta.start_ts": -1 }, { background: true }
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# For finding updates that don't yet have a project_id and need it inserting
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db.docHistory.ensureIndex { doc_id: 1, project_id: 1 }, { background: true }
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# For finding project meta-data
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db.projectHistoryMetaData.ensureIndex { project_id: 1 }, { background: true }
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# TTL index for auto deleting week old temporary ops
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db.docHistory.ensureIndex { expiresAt: 1 }, { expireAfterSeconds: 0, background: true }
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# For finding packs to be checked for archiving
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db.docHistory.ensureIndex { last_checked: 1 }, { background: true }
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# For finding archived packs
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db.docHistoryIndex.ensureIndex { project_id: 1 }, { background: true }
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