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117 lines
4.2 KiB
CoffeeScript
117 lines
4.2 KiB
CoffeeScript
RootView = require 'views/core/RootView'
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Classrooms = require 'collections/Classrooms'
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State = require 'models/State'
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Prepaids = require 'collections/Prepaids'
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template = require 'templates/courses/enrollments-view'
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Users = require 'collections/Users'
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Courses = require 'collections/Courses'
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HowToEnrollModal = require 'views/teachers/HowToEnrollModal'
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TeachersContactModal = require 'views/teachers/TeachersContactModal'
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ActivateLicensesModal = require 'views/courses/ActivateLicensesModal'
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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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events:
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'input #students-input': 'onInputStudentsInput'
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'click #enroll-students-btn': 'onClickEnrollStudentsButton'
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'click #how-to-enroll-link': 'onClickHowToEnrollLink'
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'click #contact-us-btn': 'onClickContactUsButton'
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getTitle: -> return $.i18n.t('teacher.enrollments')
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initialize: (options) ->
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@state = new State({
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totalEnrolled: 0
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totalNotEnrolled: 0
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classroomNotEnrolledMap: {}
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classroomEnrolledMap: {}
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numberOfStudents: 15
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totalCourses: 0
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prepaidGroups: {
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'available': []
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'pending': []
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}
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})
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window.tracker?.trackEvent 'Classes Licenses Loaded', category: 'Teachers', ['Mixpanel']
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super(options)
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@courses = new Courses()
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@supermodel.trackRequest @courses.fetch({data: { project: 'free' }})
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@members = new Users()
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@classrooms = new Classrooms()
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@classrooms.comparator = '_id'
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@listenToOnce @classrooms, 'sync', @onceClassroomsSync
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@supermodel.trackRequest @classrooms.fetchMine()
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@prepaids = new Prepaids()
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@prepaids.comparator = '_id'
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@supermodel.trackRequest @prepaids.fetchByCreator(me.id)
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@debouncedRender = _.debounce @render, 0
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@listenTo @prepaids, 'sync', @updatePrepaidGroups
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@listenTo(@state, 'all', @debouncedRender)
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@listenTo(me, 'change:enrollmentRequestSent', @debouncedRender)
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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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onLoaded: ->
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@calculateEnrollmentStats()
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@state.set('totalCourses', @courses.size())
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super()
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updatePrepaidGroups: ->
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@state.set('prepaidGroups', @prepaids.groupBy((p) -> p.status()))
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calculateEnrollmentStats: ->
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@removeDeletedStudents()
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# sort users into enrolled, not enrolled
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groups = @members.groupBy (m) -> m.isEnrolled()
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enrolledUsers = new Users(groups.true)
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@notEnrolledUsers = new Users(groups.false)
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map = {}
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for classroom in @classrooms.models
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map[classroom.id] = _.countBy(classroom.get('members'), (userID) -> enrolledUsers.get(userID)?).false
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@state.set({
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totalEnrolled: enrolledUsers.size()
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totalNotEnrolled: @notEnrolledUsers.size()
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classroomNotEnrolledMap: 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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onClickHowToEnrollLink: ->
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@openModalView(new HowToEnrollModal())
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onClickContactUsButton: ->
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window.tracker?.trackEvent 'Classes Licenses Contact Us', category: 'Teachers', enrollmentsNeeded: @state.get('numberOfStudents'), ['Mixpanel']
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@openModalView(new TeachersContactModal({ enrollmentsNeeded: @state.get('numberOfStudents') }))
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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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@$('#students-input').val(@state.get('numberOfStudents'))
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else
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@state.set({'numberOfStudents': Math.max(parseInt(@$('#students-input').val()) or 0, 0)}, {silent: true}) # do not re-render
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numberOfStudentsIsValid: -> 0 < @get('numberOfStudents') < 100000
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onClickEnrollStudentsButton: ->
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window.tracker?.trackEvent 'Classes Licenses Enroll Students', category: 'Teachers', ['Mixpanel']
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modal = new ActivateLicensesModal({ selectedUsers: @notEnrolledUsers, users: @members })
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@openModalView(modal)
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modal.once 'hidden', =>
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@prepaids.add(modal.prepaids.models, { merge: true })
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@debouncedRender() # Because one changed model does not a collection update make
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