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98 lines
3.5 KiB
CoffeeScript
98 lines
3.5 KiB
CoffeeScript
async = require 'async'
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Handler = require '../commons/Handler'
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{getCoursesPrice} = require '../../app/core/utils'
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Course = require './Course'
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CourseInstance = require './CourseInstance'
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Prepaid = require '../prepaids/Prepaid'
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CourseInstanceHandler = class CourseInstanceHandler extends Handler
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modelClass: CourseInstance
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jsonSchema: require '../../app/schemas/models/course_instance.schema'
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allowedMethods: ['GET', 'POST', 'PUT', 'DELETE']
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logError: (user, msg) ->
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console.warn "Course error: #{user.get('slug')} (#{user._id}): '#{msg}'"
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hasAccess: (req) ->
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req.method is 'GET' or req.user?.isAdmin()
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hasAccessToDocument: (req, document, method=null) ->
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return true if _.find document?.get('members'), (a) -> a.equals(req.user?.get('_id'))
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req.user?.isAdmin()
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getByRelationship: (req, res, args...) ->
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relationship = args[1]
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return @createAPI(req, res) if relationship is 'create'
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super arguments...
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createAPI: (req, res) ->
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return @sendUnauthorizedError(res) unless req.user?
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# Required Input
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seats = req.body.seats
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unless seats > 0
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@logError(req.user, 'Course create API missing required seats count')
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return @sendBadInputError(res, 'Missing required seats count')
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# Optional - unspecified means create instances for all courses
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courseID = req.body.courseID
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# Optional
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name = req.body.name
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# Optional - as long as course(s) are all free
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stripeToken = req.body.token
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@getCourses courseID, (err, courses) =>
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if err
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@logError(req.user, err)
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return @sendDatabaseError(res, err)
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price = getCoursesPrice(courses, seats)
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if price > 0 and not stripeToken
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@logError(req.user, 'Course create API missing required Stripe token')
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return @sendBadInputError(res, 'Missing required Stripe token')
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# TODO: purchase prepaid for courses, price, and seats
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Prepaid.generateNewCode (code) =>
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return @sendDatabaseError(res, 'Database error.') unless code
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prepaid = new Prepaid
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creator: req.user.get('_id')
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type: 'course'
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code: code
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properties:
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courseIDs: (course.get('_id') for course in courses)
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prepaid.set('maxRedeemers', seats) if seats
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prepaid.save (err) =>
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return @sendDatabaseError(res, err) if err
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courseInstances = []
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makeCreateInstanceFn = (course, name, prepaid) =>
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(done) =>
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@createInstance req, course, name, prepaid, (err, newInstance)=>
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courseInstances.push newInstance unless err
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done(err)
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# tasks = []
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# tasks.push(makeCreateInstanceFn(course, name, prepaid)) for course in courses
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tasks = (makeCreateInstanceFn(course, name, prepaid) for course in courses)
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async.parallel tasks, (err, results) =>
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return @sendDatabaseError(res, err) if err
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@sendCreated(res, courseInstances)
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createInstance: (req, course, name, prepaid, done) =>
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courseInstance = new CourseInstance
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courseID: course.get('_id')
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members: [req.user.get('_id')]
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name: name
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ownerID: req.user.get('_id')
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prepaidID: prepaid.get('_id')
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courseInstance.save (err, newInstance) =>
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done(err, newInstance)
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getCourses: (courseID, done) =>
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if courseID
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Course.findById courseID, (err, document) =>
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done(err, [document])
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else
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Course.find {}, (err, documents) =>
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done(err, documents)
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module.exports = new CourseInstanceHandler()
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