99 lines
4.5 KiB
JavaScript
99 lines
4.5 KiB
JavaScript
/* globals _ */
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define(['backbone', 'js/models/location', 'js/collections/course_grader', 'edx-ui-toolkit/js/utils/string-utils'],
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function(Backbone, Location, CourseGraderCollection, StringUtils) {
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'use strict';
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var CourseGradingPolicy = Backbone.Model.extend({
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defaults: {
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graders: null, // CourseGraderCollection
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grade_cutoffs: null, // CourseGradeCutoff model
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grace_period: null, // either null or { hours: n, minutes: m, ...}
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minimum_grade_credit: null // either null or percentage
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},
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parse: function(attributes) {
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if (attributes.graders) {
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var graderCollection;
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// interesting race condition: if {parse:true} when newing, then parse called before .attributes created
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if (this.attributes && this.has('graders')) {
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graderCollection = this.get('graders');
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graderCollection.reset(attributes.graders, {parse: true});
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} else {
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graderCollection = new CourseGraderCollection(attributes.graders, {parse: true});
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}
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attributes.graders = graderCollection;
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}
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// If grace period is unset or equal to 00:00 on the server,
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// it's received as null
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if (attributes.grace_period === null) {
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attributes.grace_period = {
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hours: 0,
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minutes: 0
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};
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}
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// If minimum_grade_credit is unset or equal to 0 on the server,
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// it's received as 0
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if (attributes.minimum_grade_credit === null) {
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attributes.minimum_grade_credit = 0;
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}
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return attributes;
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},
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gracePeriodToDate: function() {
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var newDate = new Date();
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if (this.has('grace_period') && this.get('grace_period').hours) {
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newDate.setHours(this.get('grace_period').hours);
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} else newDate.setHours(0);
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if (this.has('grace_period') && this.get('grace_period').minutes) {
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newDate.setMinutes(this.get('grace_period').minutes);
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} else newDate.setMinutes(0);
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if (this.has('grace_period') && this.get('grace_period').seconds) {
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newDate.setSeconds(this.get('grace_period').seconds);
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} else newDate.setSeconds(0);
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return newDate;
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},
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parseGracePeriod: function(grace_period) {
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// Enforce hours:minutes format
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if (!/^\d{2,3}:\d{2}$/.test(grace_period)) {
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return null;
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}
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var pieces = grace_period.split(/:/);
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return {
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hours: parseInt(pieces[0], 10),
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minutes: parseInt(pieces[1], 10)
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};
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},
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parseMinimumGradeCredit: function(minimum_grade_credit) {
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// get the value of minimum grade credit value in percentage
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if (isNaN(minimum_grade_credit)) {
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return 0;
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}
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return parseInt(minimum_grade_credit);
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},
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validate: function(attrs) {
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var minimumGradeCutoff;
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if (_.has(attrs, 'grace_period')) {
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if (attrs.grace_period === null) {
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return {
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grace_period: gettext('Grace period must be specified in HH:MM format.')
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};
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}
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}
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if (this.get('is_credit_course') && _.has(attrs, 'minimum_grade_credit')) {
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// Getting minimum grade cutoff value
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minimumGradeCutoff = _.min(_.values(attrs.grade_cutoffs));
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if (isNaN(attrs.minimum_grade_credit) || attrs.minimum_grade_credit === null ||
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attrs.minimum_grade_credit < minimumGradeCutoff) {
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return {
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minimum_grade_credit: StringUtils.interpolate(
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gettext('Not able to set passing grade to less than %(minimum_grade_cutoff)s%.'),
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{minimum_grade_cutoff: minimumGradeCutoff * 100},
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true
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)
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};
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}
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}
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}
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});
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return CourseGradingPolicy;
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}); // end define()
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