codecombat/server/middleware/classrooms.coffee

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_ = require 'lodash'
utils = require '../lib/utils'
errors = require '../commons/errors'
wrap = require 'co-express'
Promise = require 'bluebird'
database = require '../commons/database'
mongoose = require 'mongoose'
Classroom = require '../models/Classroom'
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Course = require '../models/Course'
Campaign = require '../models/Campaign'
Level = require '../models/Level'
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parse = require '../commons/parse'
LevelSession = require '../models/LevelSession'
User = require '../models/User'
CourseInstance = require '../models/CourseInstance'
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module.exports =
getByOwner: wrap (req, res, next) ->
options = req.query
ownerID = options.ownerID
return next() unless ownerID
throw new errors.UnprocessableEntity('Bad ownerID') unless utils.isID ownerID
throw new errors.Unauthorized() unless req.user
throw new errors.Forbidden('"ownerID" must be yourself') unless req.user.isAdmin() or ownerID is req.user.id
sanitizedOptions = {}
unless _.isUndefined(options.archived)
# Handles when .archived is true, vs false-or-null
sanitizedOptions.archived = { $ne: not (options.archived is 'true') }
dbq = Classroom.find _.merge sanitizedOptions, { ownerID: mongoose.Types.ObjectId(ownerID) }
dbq.select(parse.getProjectFromReq(req))
classrooms = yield dbq
classrooms = (classroom.toObject({req: req}) for classroom in classrooms)
res.status(200).send(classrooms)
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fetchAllLevels: wrap (req, res, next) ->
classroom = yield database.getDocFromHandle(req, Classroom)
if not classroom
throw new errors.NotFound('Classroom not found.')
levelOriginals = []
for course in classroom.get('courses') or []
for level in course.levels
levelOriginals.push(level.original)
levels = yield Level.find({ original: { $in: levelOriginals }, slug: { $exists: true }}).select(parse.getProjectFromReq(req))
levels = (level.toObject({ req: req }) for level in levels)
# maintain course order
levelMap = {}
for level in levels
levelMap[level.original] = level
levels = (levelMap[levelOriginal.toString()] for levelOriginal in levelOriginals)
res.status(200).send(_.filter(levels)) # for dev server where not all levels will be found
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fetchLevelsForCourse: wrap (req, res) ->
classroom = yield database.getDocFromHandle(req, Classroom)
if not classroom
throw new errors.NotFound('Classroom not found.')
levelOriginals = []
for course in classroom.get('courses') or []
if course._id.toString() isnt req.params.courseID
continue
for level in course.levels
levelOriginals.push(level.original)
levels = yield Level.find({ original: { $in: levelOriginals }, slug: { $exists: true }}).select(parse.getProjectFromReq(req))
levels = (level.toObject({ req: req }) for level in levels)
# maintain course order
levelMap = {}
for level in levels
levelMap[level.original] = level
levels = (levelMap[levelOriginal.toString()] for levelOriginal in levelOriginals)
res.status(200).send(levels)
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fetchMemberSessions: wrap (req, res, next) ->
throw new errors.Unauthorized() unless req.user
memberLimit = parse.getLimitFromReq(req, {default: 10, max: 100, param: 'memberLimit'})
memberSkip = parse.getSkipFromReq(req, {param: 'memberSkip'})
classroom = yield database.getDocFromHandle(req, Classroom)
throw new errors.NotFound('Classroom not found.') if not classroom
throw new errors.Forbidden('You do not own this classroom.') unless req.user.isAdmin() or classroom.get('ownerID').equals(req.user._id)
members = classroom.get('members') or []
members = members.slice(memberSkip, memberSkip + memberLimit)
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dbqs = []
Refactor and update teacher-dashboard This updates TeacherClassView and ActivateLicensesModal to use the new state-based rendering system, making it much snappier and less clunky feeling, and improving data consistency. Features also included in this: - Hover details for progress dots in TeacherClassView - ActivateLicensesModal has an "All Students" option and better handling when you switch classrooms in the dropdown - Unenrolled/Unassigned students are shown separately in Course Progress and can be enrolled/assigned from there. Add Back to Classes button on demo-request submitted view Delete temporary patch file Show unenrolled students separately in Course Progress (incomplete) Migrate TeacherClassView to use orchestrator-style events, add unassigned students section, replace bootstrap tabs with state-based tabs Convert missed instance variables to be in @state Fix merge errors (in progress) Convert a bunch of stuff to use state and events (removing student needs fixing) Fix up modal interactions, some bugs Switch state to be a Model, sync up course dropdowns Convert student sorting to use state model Add hover tooltips to TeacherClassView Students tab Don't keep tooltip open when you mouse into it Add dateFirstCompleted and Course Progress tooltips Course Overview progress tooltips Refactor ActivateLicensesModal Refactors: Uses state object for view state Passes back the updated users in 'redeem-users' event instead of modifying given collection Features: Add 'All Students' dropdown option Don't forget checked students if you change classroom from dropdown, but only enroll the ones visible when you click "Enroll (n) Students" Separate enrolled students; improve style Rearrange error text Disable enroll-students button when none are selected Remove console.logs Move style-flat variables to another file This prevents .style-flat from being copied in multiple times to the resulting CSS. Show Unarchive button when on the page for an archived class Move text to en.coffee Only sort students on first classroom sync Fix merge error Handle sessions missing completion date in view logic instead of migration script Listen to classroom sync more than once in case it gets unarchived
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select = 'state.complete level creator playtime changed dateFirstCompleted'
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for member in members
dbqs.push(LevelSession.find({creator: member.toHexString()}).select(select).exec())
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results = yield dbqs
sessions = _.flatten(results)
res.status(200).send(sessions)
fetchMembers: wrap (req, res, next) ->
throw new errors.Unauthorized() unless req.user
memberLimit = parse.getLimitFromReq(req, {default: 10, max: 100, param: 'memberLimit'})
memberSkip = parse.getSkipFromReq(req, {param: 'memberSkip'})
classroom = yield database.getDocFromHandle(req, Classroom)
throw new errors.NotFound('Classroom not found.') if not classroom
isOwner = classroom.get('ownerID').equals(req.user._id)
isMember = req.user.id in (m.toString() for m in classroom.get('members'))
unless req.user.isAdmin() or isOwner or isMember
throw new errors.Forbidden('You do not own this classroom.')
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memberIDs = classroom.get('members') or []
memberIDs = memberIDs.slice(memberSkip, memberSkip + memberLimit)
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members = yield User.find({ _id: { $in: memberIDs }}).select(parse.getProjectFromReq(req))
Stuff Partially fix ActivateLicensesModal.spec [IN PROGRESS] Don't display deleted users Move userID to classroom.deletedMembers on user delete (not retroactive) Fix PDF links for course guides, remove old PDFs from repo Remove deprecated SalesView Remove underline for not-yet-linked student names Only show class select when there's more than one Ignore case when sorting student names Use student.broadName instead of name for display and sorting Fix initial load not showing progress after joining a course (hacky) Fix text entry for enrollment number input Fix enrollment statistics Fix enrollment stats completely (and add back in per-class unenrolled count) Add deletedMembers to classroom schema More fixes to enrollment stats (don't count nonmember prepaids) Don't use 0 as implicit false for openSpots Update suggested number of credit to buy automatically Fix classroom edit form ignoring cleared values Add alert text when more users selected than enrollments available Alert user when trying to assign course to unenrolled students Alert user when assigning course to nobody Add some tests for TeacherClassView bulk assign alerts Fix TeacherClassView tests failing without demos Use model/collection.fakeRequests :D Remove unused comment Fix handling of improperly sorted deleted users on clientside Add test for moving deleted users to deletedMembers Add script for moving all deleted classroom members to classroom.deletedMembers Completely rewrite tallying up enrollment statistics Fix some tests to not be dependent on logged-in user Address PR comments Fix default number of enrollments to buy Fix i18n for not enough enrollments Use custom error message for classroom name length
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# members = yield User.find({ _id: { $in: memberIDs }, deleted: { $ne: true }}).select(parse.getProjectFromReq(req))
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memberObjects = (member.toObject({ req: req, includedPrivates: ["name", "email"] }) for member in members)
res.status(200).send(memberObjects)
post: wrap (req, res) ->
throw new errors.Unauthorized() unless req.user and not req.user.isAnonymous()
throw new errors.Forbidden() unless req.user?.isTeacher()
classroom = database.initDoc(req, Classroom)
classroom.set 'ownerID', req.user._id
classroom.set 'members', []
database.assignBody(req, classroom)
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# copy over data from how courses are right now
courses = yield Course.find()
campaigns = yield Campaign.find({_id: {$in: (course.get('campaignID') for course in courses)}})
campaignMap = {}
campaignMap[campaign.id] = campaign for campaign in campaigns
coursesData = []
for course in courses
courseData = { _id: course._id, levels: [] }
campaign = campaignMap[course.get('campaignID').toString()]
levels = _.values(campaign.get('levels'))
levels = _.sortBy(levels, 'campaignIndex')
for level in levels
levelData = { original: mongoose.Types.ObjectId(level.original) }
_.extend(levelData, _.pick(level, 'type', 'slug', 'name'))
courseData.levels.push(levelData)
coursesData.push(courseData)
classroom.set('courses', coursesData)
# finish
database.validateDoc(classroom)
classroom = yield classroom.save()
res.status(201).send(classroom.toObject({req: req}))
join: wrap (req, res) ->
unless req.body?.code
throw new errors.UnprocessableEntity('Need a code')
if req.user.isTeacher()
throw new errors.Forbidden('Cannot join a classroom as a teacher')
code = req.body.code.toLowerCase()
classroom = yield Classroom.findOne({code: code})
if not classroom
throw new errors.NotFound(res)
members = _.clone(classroom.get('members'))
if _.any(members, (memberID) -> memberID.equals(req.user._id))
return res.send(classroom.toObject({req: req}))
update = { $push: { members : req.user._id }}
yield classroom.update(update)
members.push req.user._id
classroom.set('members', members)
# make user role student
if not req.user.get('role')
req.user.set('role', 'student')
yield req.user.save()
# join any course instances for free courses in the classroom
courseIDs = (course._id for course in classroom.get('courses'))
courses = yield Course.find({_id: {$in: courseIDs}, free: true})
freeCourseIDs = (course._id for course in courses)
freeCourseInstances = yield CourseInstance.find({ classroomID: classroom._id, courseID: {$in: freeCourseIDs} }).select('_id')
freeCourseInstanceIDs = (courseInstance._id for courseInstance in freeCourseInstances)
yield CourseInstance.update({_id: {$in: freeCourseInstanceIDs}}, { $addToSet: { members: req.user._id }})
yield User.update({ _id: req.user._id }, { $addToSet: { courseInstances: { $each: freeCourseInstanceIDs } } })
res.send(classroom.toObject({req: req}))