mirror of
https://github.com/codeninjasllc/codecombat.git
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291 lines
9.9 KiB
CoffeeScript
291 lines
9.9 KiB
CoffeeScript
mongoose = require('mongoose')
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textSearch = require('mongoose-text-search')
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module.exports.MigrationPlugin = (schema, migrations) ->
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# Property name migrations made EZ
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# This is for just when you want one property to be named differently
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# 1. Change the schema and the client/server logic to use the new name
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# 2. Add this plugin to the target models, passing in a dictionary of old/new names.
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# 3. Check that tests still run, deploy to production.
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# 4. Run db.<collection>.update({}, { $rename: {'<oldname>':'<newname>'} }, { multi: true }) on the server
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# 5. Remove the names you added to the migrations dictionaries for the next deploy
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schema.post 'init', ->
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for oldKey in _.keys migrations
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val = @get oldKey
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@set oldKey, undefined
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continue if val is undefined
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newKey = migrations[oldKey]
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@set newKey, val
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module.exports.PatchablePlugin = (schema) ->
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schema.is_patchable = true
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schema.index({'target.original':1, 'status':'1', 'created':-1})
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RESERVED_NAMES = ['search', 'names']
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module.exports.NamedPlugin = (schema) ->
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schema.uses_coco_names = true
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schema.add({name: String, slug: String})
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schema.index({'slug': 1}, {unique: true, sparse: true, name: 'slug index'})
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schema.pre('save', (next) ->
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if schema.uses_coco_versions
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v = @get('version')
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return next() unless v.isLatestMajor and v.isLatestMinor
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newSlug = _.str.slugify(@get('name'))
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if newSlug in RESERVED_NAMES
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err = new Error('Reserved name.')
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err.response = {message:' is a reserved name', property: 'name'}
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err.code = 422
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return next(err)
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if newSlug isnt @get('slug')
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@set('slug', newSlug)
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@checkSlugConflicts(next)
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else
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next()
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)
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schema.methods.checkSlugConflicts = (done) ->
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slug = @get('slug')
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if slug.length is 24 and slug.match(/[a-f0-9]/gi)?.length is 24
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err = new Error('Bad name.')
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err.response = {message: 'cannot be like a MongoDB ID, Mr. Hacker.', property: 'name'}
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err.code = 422
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done(err)
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query = { slug:slug }
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if @get('original')
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query.original = {'$ne':@original}
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else if @_id
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query._id = {'$ne':@_id}
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@model(@constructor.modelName).count query, (err, count) ->
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if count
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err = new Error('Slug conflict.')
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err.response = {message:'is already in use', property:'name'}
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err.code = 409
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done(err)
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done()
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module.exports.PermissionsPlugin = (schema) ->
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schema.uses_coco_permissions = true
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PermissionSchema = new mongoose.Schema
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target: mongoose.Schema.Types.Mixed
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access: {type: String, 'enum':['read', 'write', 'owner']}
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, {id: false, _id: false}
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schema.add(permissions: [PermissionSchema])
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schema.pre 'save', (next) ->
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return next() if @getOwner()
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err = new Error('Permissions needs an owner.')
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err.response = {message:'needs an owner.', property:'permissions'}
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err.code = 409
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next(err)
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schema.methods.hasPermissionsForMethod = (actor, method) ->
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method = method.toLowerCase()
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# method is 'get', 'put', 'patch', 'post', or 'delete'
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# actor is a User object
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allowed =
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get: ['read', 'write', 'owner']
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put: ['write', 'owner']
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patch: ['write', 'owner']
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post: ['write', 'owner'] # used to post new versions of something
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delete: [] # nothing may go!
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allowed = allowed[method] or []
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for permission in @permissions
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if permission.target is 'public' or actor._id.equals(permission.target)
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return true if permission.access in allowed
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return false
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schema.methods.getOwner = ->
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for permission in @permissions
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if permission.access is 'owner'
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return permission.target
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schema.methods.getPublicAccess = ->
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for permission in @permissions
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if permission.target is 'public'
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return permission.access
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schema.methods.getAccessForUserObjectId = (objectId) ->
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public_access = null
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for permission in @permissions
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if permission.target is 'public'
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public_access = permission.access
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continue
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if objectId.equals(permission.target)
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return permission.access
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return public_access
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module.exports.VersionedPlugin = (schema) ->
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schema.uses_coco_versions = true
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schema.add(
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version:
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major: {type: Number, 'default': 0}
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minor: {type: Number, 'default': 0}
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isLatestMajor: {type: Boolean, 'default': true}
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isLatestMinor: {type: Boolean, 'default': true}
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original: {type: mongoose.Schema.ObjectId, ref: @modelName}
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parent: {type: mongoose.Schema.ObjectId, ref: @modelName}
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creator: {type: mongoose.Schema.ObjectId, ref: 'User'}
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created: { type: Date, 'default': Date.now }
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commitMessage: {type: String}
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)
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# Prevent multiple documents with the same version
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# Also used for looking up latest version, or specific versions.
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schema.index({'original': 1, 'version.major': -1, 'version.minor': -1}, {unique: true, name: 'version index'})
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schema.statics.getLatestMajorVersion = (original, options, done) ->
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options = options or {}
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query = @findOne({original:original, 'version.isLatestMajor':true})
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query.select(options.select) if options.select
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query.exec((err, latest) =>
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return done(err) if err
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return done(null, latest) if latest
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# handle the case where no version is marked as the latest
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q = @find({original:original})
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q.sort({'version.major':-1, 'version.minor':-1})
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q.select(options.select) if options.select
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q.limit(1)
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q.exec((err, latest) =>
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return done(err) if err
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return done(null, null) if latest.length is 0
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latest = latest[0]
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# don't fix missing versions by default. In all likelihood, it's about to change anyway
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if options.autofix
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latest.version.isLatestMajor = true
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latest.version.isLatestMinor = true
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latestObject = latest.toObject()
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@update({_id: latest._id}, {version: latestObject.version})
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done(null, latest)
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)
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)
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schema.statics.getLatestMinorVersion = (original, majorVersion, options, done) ->
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options = options or {}
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query = @findOne({original:original, 'version.isLatestMinor':true, 'version.major':majorVersion})
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query.select(options.select) if options.select
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query.exec((err, latest) =>
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return done(err) if err
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return done(null, latest) if latest
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q = @find({original:original, 'version.major':majorVersion})
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q.sort({'version.minor':-1})
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q.select(options.select) if options.select
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q.limit(1)
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q.exec((err, latest) ->
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return done(err) if err
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return done(null, null) if latest.length is 0
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latest = latest[0]
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if options.autofix
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latestObject = latest.toObject()
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latestObject.version.isLatestMajor = true
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latestObject.version.isLatestMinor = true
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@update({_id: latest._id}, {version: latestObject.version})
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done(null, latest)
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)
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)
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schema.methods.makeNewMajorVersion = (newObject, done) ->
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Model = @model(@constructor.modelName)
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latest = Model.getLatestMajorVersion(@original, {select:'version'}, (err, latest) =>
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return done(err) if err
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updatedObject = _.cloneDeep latestObject
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# unmark the current latest major version in the database
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latestObject = latest.toObject()
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latestObject.version.isLatestMajor = false
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Model.update({_id: latest._id}, {version: latestObject.version, $unset: {index:1, slug: 1} }, {}, (err) =>
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return done(err) if err
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newObject['version'] = { major: latest.version.major + 1 }
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newObject.index = true
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newObject.parent = @_id
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delete newObject['_id']
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delete newObject['created']
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done(null, new Model(newObject))
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)
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)
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schema.methods.makeNewMinorVersion = (newObject, majorVersion, done) ->
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Model = @model(@constructor.modelName)
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latest = Model.getLatestMinorVersion(@original, majorVersion, {select:'version'}, (err, latest) =>
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return done(err) if err
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# unmark the current latest major version in the database
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latestObject = latest.toObject()
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wasLatestMajor = latestObject.version.isLatestMajor
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latestObject.version.isLatestMajor = false
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latestObject.version.isLatestMinor = false
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Model.update({_id: latest._id}, {version: latestObject.version, $unset: {index:1, slug: 1}}, {}, (err) =>
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return done(err) if err
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newObject['version'] =
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major: latest.version.major
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minor: latest.version.minor + 1
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isLatestMajor: wasLatestMajor
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if wasLatestMajor
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newObject.index = true
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else
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delete newObject.index if newObject.index?
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delete newObject.slug if newObject.slug?
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newObject.parent = @_id
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delete newObject['_id']
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delete newObject['created']
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done(null, new Model(newObject))
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)
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)
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module.exports.SearchablePlugin = (schema, options) ->
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# this plugin must be added only after the others (specifically Versioned and Permissions)
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# have been added, as how it builds the text search index depends on which of those are used.
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searchable = options.searchable
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unless searchable
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throw Error('SearchablePlugin options must include list of searchable properties.')
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index = {}
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schema.uses_coco_search = true
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if schema.uses_coco_versions or schema.uses_coco_permissions
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index['index'] = 1
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schema.add(index: mongoose.Schema.Types.Mixed)
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index[prop] = 'text' for prop in searchable
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# should now have something like {'index': 1, name:'text', body:'text'}
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schema.plugin(textSearch)
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schema.index(index, { sparse: true, name: 'search index', language_override: 'searchLanguage' })
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schema.pre 'save', (next) ->
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# never index old versions, index plugin handles un-indexing old versions
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if schema.uses_coco_versions and ((not @version.isLatestMajor) or (not @version.isLatestMinor))
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return next()
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@index = true
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if schema.uses_coco_permissions
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access = @getPublicAccess()
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@index = @getOwner() unless access
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next()
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