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164 lines
5.7 KiB
CoffeeScript
164 lines
5.7 KiB
CoffeeScript
app = require 'core/application'
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CreateAccountModal = require 'views/core/CreateAccountModal'
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Classroom = require 'models/Classroom'
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Classrooms = require 'collections/Classrooms'
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CocoCollection = require 'collections/CocoCollection'
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Course = require 'models/Course'
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Prepaids = require 'collections/Prepaids'
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RootView = require 'views/core/RootView'
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stripeHandler = require 'core/services/stripe'
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template = require 'templates/courses/enrollments-view'
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User = require 'models/User'
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Users = require 'collections/Users'
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utils = require 'core/utils'
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Products = require 'collections/Products'
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module.exports = class EnrollmentsView extends RootView
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id: 'enrollments-view'
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template: template
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numberOfStudents: 15
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pricePerStudent: 0
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initialize: (options) ->
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@ownedClassrooms = new Classrooms()
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@ownedClassrooms.fetchMine({data: {project: '_id'}})
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@supermodel.trackCollection(@ownedClassrooms)
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@listenTo stripeHandler, 'received-token', @onStripeReceivedToken
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@fromClassroom = utils.getQueryVariable('from-classroom')
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@members = new Users()
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# @listenTo @members, 'sync add remove', @calculateEnrollmentStats
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@classrooms = new CocoCollection([], { url: "/db/classroom", model: Classroom })
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@classrooms.comparator = '_id'
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@listenToOnce @classrooms, 'sync', @onceClassroomsSync
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@supermodel.loadCollection(@classrooms, 'classrooms', {data: {ownerID: me.id}})
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@prepaids = new Prepaids()
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@prepaids.comparator = '_id'
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@prepaids.fetchByCreator(me.id)
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@supermodel.loadCollection(@prepaids, 'prepaids')
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@products = new Products()
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@supermodel.loadCollection(@products, 'products')
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super(options)
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events:
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'input #students-input': 'onInputStudentsInput'
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'click .purchase-now': 'onClickPurchaseButton'
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# 'click .enroll-students': 'onClickEnrollStudents'
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onLoaded: ->
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@calculateEnrollmentStats()
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@pricePerStudent = @products.findWhere({name: 'course'}).get('amount')
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super()
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getPriceString: -> '$' + (@getPrice()/100).toFixed(2)
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getPrice: -> @pricePerStudent * @numberOfStudents
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onceClassroomsSync: ->
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for classroom in @classrooms.models
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@supermodel.trackRequests @members.fetchForClassroom(classroom, {remove: false, removeDeleted: true})
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calculateEnrollmentStats: ->
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@removeDeletedStudents()
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@memberEnrolledMap = {}
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for user in @members.models
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@memberEnrolledMap[user.id] = user.get('coursePrepaidID')?
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@totalEnrolled = _.reduce @members.models, ((sum, user) ->
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sum + (if user.get('coursePrepaidID') then 1 else 0)
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), 0
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@numberOfStudents = @totalNotEnrolled = _.reduce @members.models, ((sum, user) ->
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sum + (if not user.get('coursePrepaidID') then 1 else 0)
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), 0
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@classroomEnrolledMap = _.reduce @classrooms.models, ((map, classroom) =>
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enrolled = _.reduce classroom.get('members'), ((sum, userID) =>
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sum + (if @members.get(userID).get('coursePrepaidID') then 1 else 0)
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), 0
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map[classroom.id] = enrolled
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map
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), {}
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@classroomNotEnrolledMap = _.reduce @classrooms.models, ((map, classroom) =>
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enrolled = _.reduce classroom.get('members'), ((sum, userID) =>
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sum + (if not @members.get(userID).get('coursePrepaidID') then 1 else 0)
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), 0
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map[classroom.id] = enrolled
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map
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), {}
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true
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removeDeletedStudents: (e) ->
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for classroom in @classrooms.models
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_.remove(classroom.get('members'), (memberID) =>
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not @members.get(memberID) or @members.get(memberID)?.get('deleted')
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)
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true
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onInputStudentsInput: ->
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input = @$('#students-input').val()
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if input isnt "" and (parseFloat(input) isnt parseInt(input) or _.isNaN parseInt(input))
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@$('#students-input').val(@numberOfStudents)
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else
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@numberOfStudents = Math.max(parseInt(@$('#students-input').val()) or 0, 0)
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@updatePrice()
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updatePrice: ->
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@renderSelectors '#price-form-group'
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numberOfStudentsIsValid: -> 0 < @numberOfStudents < 100000
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# onClickEnrollStudents: ->
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# TODO: Needs "All students" in modal dropdown
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onClickPurchaseButton: ->
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return @openModalView new CreateAccountModal() if me.isAnonymous()
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unless @numberOfStudentsIsValid()
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alert("Please enter the maximum number of students needed for your class.")
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return
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@state = undefined
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@stateMessage = undefined
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@render()
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# Show Stripe handler
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application.tracker?.trackEvent 'Started course prepaid purchase', {
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price: @pricePerStudent, students: @numberOfStudents}
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stripeHandler.open
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amount: @numberOfStudents * @pricePerStudent
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description: "Full course access for #{@numberOfStudents} students"
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bitcoin: true
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alipay: if me.get('country') is 'china' or (me.get('preferredLanguage') or 'en-US')[...2] is 'zh' then true else 'auto'
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onStripeReceivedToken: (e) ->
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@state = 'purchasing'
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@render?()
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data =
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maxRedeemers: @numberOfStudents
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type: 'course'
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stripe:
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token: e.token.id
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timestamp: new Date().getTime()
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$.ajax({
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url: '/db/prepaid/-/purchase',
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data: data,
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method: 'POST',
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context: @
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success: (prepaid) ->
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application.tracker?.trackEvent 'Finished course prepaid purchase', {price: @pricePerStudent, seats: @numberOfStudents}
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@state = 'purchased'
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@prepaids.add(prepaid)
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@render?()
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error: (jqxhr, textStatus, errorThrown) ->
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application.tracker?.trackEvent 'Failed course prepaid purchase', status: textStatus
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if jqxhr.status is 402
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@state = 'error'
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@stateMessage = arguments[2]
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else
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@state = 'error'
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@stateMessage = "#{jqxhr.status}: #{jqxhr.responseText}"
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@render?()
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})
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