forked from EVOgeek/Vmeda.Online
606 lines
26 KiB
TypeScript
606 lines
26 KiB
TypeScript
// (C) Copyright 2015 Moodle Pty Ltd.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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import { Injectable, Injector } from '@angular/core';
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import { TranslateService } from '@ngx-translate/core';
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import { CoreAppProvider } from '@providers/app';
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import { CoreFilepoolProvider } from '@providers/filepool';
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import { CoreSitesProvider } from '@providers/sites';
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import { CoreDomUtilsProvider } from '@providers/utils/dom';
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import { CoreUtilsProvider } from '@providers/utils/utils';
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import { CoreCourseProvider } from '@core/course/providers/course';
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import { CoreTextUtilsProvider } from '@providers/utils/text';
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import { CoreQuestionHelperProvider } from '@core/question/providers/helper';
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import { CoreCourseActivityPrefetchHandlerBase } from '@core/course/classes/activity-prefetch-handler';
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import { AddonModQuizProvider } from './quiz';
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import { AddonModQuizHelperProvider } from './helper';
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import { AddonModQuizAccessRuleDelegate } from './access-rules-delegate';
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import { AddonModQuizSyncProvider } from './quiz-sync';
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import { CoreConstants } from '@core/constants';
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import { CoreFilterHelperProvider } from '@core/filter/providers/helper';
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import { CorePluginFileDelegate } from '@providers/plugin-file-delegate';
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/**
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* Handler to prefetch quizzes.
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*/
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@Injectable()
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export class AddonModQuizPrefetchHandler extends CoreCourseActivityPrefetchHandlerBase {
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name = 'AddonModQuiz';
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modName = 'quiz';
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component = AddonModQuizProvider.COMPONENT;
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updatesNames = /^configuration$|^.*files$|^grades$|^gradeitems$|^questions$|^attempts$/;
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protected syncProvider: AddonModQuizSyncProvider; // It will be injected later to prevent circular dependencies.
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constructor(translate: TranslateService,
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appProvider: CoreAppProvider,
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utils: CoreUtilsProvider,
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courseProvider: CoreCourseProvider,
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filepoolProvider: CoreFilepoolProvider,
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sitesProvider: CoreSitesProvider,
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domUtils: CoreDomUtilsProvider,
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filterHelper: CoreFilterHelperProvider,
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pluginFileDelegate: CorePluginFileDelegate,
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protected injector: Injector,
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protected quizProvider: AddonModQuizProvider,
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protected textUtils: CoreTextUtilsProvider,
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protected quizHelper: AddonModQuizHelperProvider,
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protected accessRuleDelegate: AddonModQuizAccessRuleDelegate,
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protected questionHelper: CoreQuestionHelperProvider) {
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super(translate, appProvider, utils, courseProvider, filepoolProvider, sitesProvider, domUtils, filterHelper,
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pluginFileDelegate);
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}
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/**
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* Download the module.
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*
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* @param module The module object returned by WS.
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* @param courseId Course ID.
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* @param dirPath Path of the directory where to store all the content files.
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* @param single True if we're downloading a single module, false if we're downloading a whole section.
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* @param canStart If true, start a new attempt if needed.
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* @return Promise resolved when all content is downloaded.
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*/
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download(module: any, courseId: number, dirPath?: string, single?: boolean, canStart: boolean = true): Promise<any> {
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// Same implementation for download and prefetch.
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return this.prefetch(module, courseId, single, dirPath, canStart);
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}
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/**
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* Get list of files. If not defined, we'll assume they're in module.contents.
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*
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* @param module Module.
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* @param courseId Course ID the module belongs to.
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* @param single True if we're downloading a single module, false if we're downloading a whole section.
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* @return Promise resolved with the list of files.
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*/
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getFiles(module: any, courseId: number, single?: boolean): Promise<any[]> {
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return this.quizProvider.getQuiz(courseId, module.id).then((quiz) => {
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const files = this.getIntroFilesFromInstance(module, quiz);
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return this.quizProvider.getUserAttempts(quiz.id, 'all', true, false, true).then((attempts) => {
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return this.getAttemptsFeedbackFiles(quiz, attempts).then((attemptFiles) => {
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return files.concat(attemptFiles);
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});
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});
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}).catch(() => {
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// Quiz not found, return empty list.
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return [];
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});
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}
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/**
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* Get the list of downloadable files on feedback attemptss.
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*
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* @param quiz Quiz.
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* @param attempts Quiz user attempts.
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* @return List of Files.
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*/
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protected getAttemptsFeedbackFiles(quiz: any, attempts: any[]): Promise<any[]> {
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// We have quiz data, now we'll get specific data for each attempt.
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const promises = [],
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getInlineFiles = this.sitesProvider.getCurrentSite().isVersionGreaterEqualThan('3.2');
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let files = [];
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attempts.forEach((attempt) => {
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if (this.quizProvider.isAttemptFinished(attempt.state)) {
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// Attempt is finished, get feedback and review data.
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const attemptGrade = this.quizProvider.rescaleGrade(attempt.sumgrades, quiz, false);
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if (typeof attemptGrade != 'undefined') {
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promises.push(this.quizProvider.getFeedbackForGrade(quiz.id, Number(attemptGrade), true)
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.then((feedback) => {
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if (getInlineFiles && feedback.feedbackinlinefiles && feedback.feedbackinlinefiles.length) {
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files = files.concat(feedback.feedbackinlinefiles);
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} else if (feedback.feedbacktext && !getInlineFiles) {
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files = files.concat(
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this.filepoolProvider.extractDownloadableFilesFromHtmlAsFakeFileObjects(feedback.feedbacktext));
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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 Promise.all(promises).then(() => {
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return files;
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});
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}
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/**
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* Gather some preflight data for an attempt. This function will start a new attempt if needed.
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*
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* @param quiz Quiz.
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* @param accessInfo Quiz access info returned by AddonModQuizProvider.getQuizAccessInformation.
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* @param attempt Attempt to continue. Don't pass any value if the user needs to start a new attempt.
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* @param askPreflight Whether it should ask for preflight data if needed.
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* @param modalTitle Lang key of the title to set to preflight modal (e.g. 'addon.mod_quiz.startattempt').
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* @param siteId Site ID. If not defined, current site.
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* @return Promise resolved with the preflight data.
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*/
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getPreflightData(quiz: any, accessInfo: any, attempt?: any, askPreflight?: boolean, title?: string, siteId?: string)
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: Promise<any> {
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const preflightData = {};
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let promise;
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if (askPreflight) {
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// We can ask preflight, check if it's needed and get the data.
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promise = this.quizHelper.getAndCheckPreflightData(
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quiz, accessInfo, preflightData, attempt, false, true, title, siteId);
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} else {
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// Get some fixed preflight data from access rules (data that doesn't require user interaction).
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const rules = accessInfo.activerulenames;
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promise = this.accessRuleDelegate.getFixedPreflightData(rules, quiz, preflightData, attempt, true, siteId).then(() => {
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if (!attempt) {
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// We need to create a new attempt.
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return this.quizProvider.startAttempt(quiz.id, preflightData, false, siteId);
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}
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});
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}
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return promise.then(() => {
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return preflightData;
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});
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}
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/**
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* Invalidate the prefetched content.
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*
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* @param moduleId The module ID.
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* @param courseId The course ID the module belongs to.
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* @return Promise resolved when the data is invalidated.
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*/
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invalidateContent(moduleId: number, courseId: number): Promise<any> {
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return this.quizProvider.invalidateContent(moduleId, courseId);
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}
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/**
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* Invalidate WS calls needed to determine module status.
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*
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* @param module Module.
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* @param courseId Course ID the module belongs to.
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* @return Promise resolved when invalidated.
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*/
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invalidateModule(module: any, courseId: number): Promise<any> {
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// Invalidate the calls required to check if a quiz is downloadable.
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const promises = [];
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promises.push(this.quizProvider.invalidateQuizData(courseId));
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promises.push(this.quizProvider.invalidateUserAttemptsForUser(module.instance));
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return Promise.all(promises);
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}
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/**
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* Check if a module can be downloaded. If the function is not defined, we assume that all modules are downloadable.
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*
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* @param module Module.
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* @param courseId Course ID the module belongs to.
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* @return Whether the module can be downloaded. The promise should never be rejected.
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*/
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isDownloadable(module: any, courseId: number): boolean | Promise<boolean> {
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if (this.sitesProvider.getCurrentSite().isOfflineDisabled()) {
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// Don't allow downloading the quiz if offline is disabled to prevent wasting a lot of data when opening it.
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return false;
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}
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const siteId = this.sitesProvider.getCurrentSiteId();
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return this.quizProvider.getQuiz(courseId, module.id, false, false, siteId).then((quiz) => {
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if (quiz.allowofflineattempts !== 1 || quiz.hasquestions === 0) {
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return false;
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}
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// Not downloadable if we reached max attempts or the quiz has an unfinished attempt.
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return this.quizProvider.getUserAttempts(quiz.id, undefined, true, false, false, siteId).then((attempts) => {
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const isLastFinished = !attempts.length || this.quizProvider.isAttemptFinished(attempts[attempts.length - 1].state);
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return quiz.attempts === 0 || quiz.attempts > attempts.length || !isLastFinished;
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});
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});
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}
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/**
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* Whether or not the handler is enabled on a site level.
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*
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* @return A boolean, or a promise resolved with a boolean, indicating if the handler is enabled.
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*/
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isEnabled(): boolean | Promise<boolean> {
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return this.quizProvider.isPluginEnabled();
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}
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/**
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* Prefetch a module.
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*
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* @param module Module.
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* @param courseId Course ID the module belongs to.
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* @param single True if we're downloading a single module, false if we're downloading a whole section.
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* @param dirPath Path of the directory where to store all the content files.
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* @param canStart If true, start a new attempt if needed.
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* @return Promise resolved when done.
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*/
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prefetch(module: any, courseId?: number, single?: boolean, dirPath?: string, canStart: boolean = true): Promise<any> {
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if (module.attemptFinished) {
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// Delete the value so it does not block anything if true.
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delete module.attemptFinished;
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// Quiz got synced recently and an attempt has finished. Do not prefetch.
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return Promise.resolve();
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}
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return this.prefetchPackage(module, courseId, single, this.prefetchQuiz.bind(this), undefined, canStart);
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}
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/**
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* Prefetch a quiz.
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*
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* @param module Module.
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* @param courseId Course ID the module belongs to.
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* @param single True if we're downloading a single module, false if we're downloading a whole section.
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* @param siteId Site ID.
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* @param canStart If true, start a new attempt if needed.
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* @return Promise resolved when done.
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*/
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protected prefetchQuiz(module: any, courseId: number, single: boolean, siteId: string, canStart: boolean): Promise<any> {
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let attempts: any[],
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startAttempt = false,
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quiz,
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quizAccessInfo,
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attemptAccessInfo,
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preflightData;
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// Get quiz.
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return this.quizProvider.getQuiz(courseId, module.id, false, true, siteId).then((quizData) => {
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quiz = quizData;
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const promises = [],
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introFiles = this.getIntroFilesFromInstance(module, quiz);
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// Prefetch some quiz data.
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promises.push(this.quizProvider.getQuizAccessInformation(quiz.id, false, true, siteId).then((info) => {
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quizAccessInfo = info;
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}));
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promises.push(this.quizProvider.getQuizRequiredQtypes(quiz.id, true, siteId));
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promises.push(this.quizProvider.getUserAttempts(quiz.id, 'all', true, false, true, siteId).then((atts) => {
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attempts = atts;
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return this.getAttemptsFeedbackFiles(quiz, attempts).then((attemptFiles) => {
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return this.filepoolProvider.addFilesToQueue(siteId, attemptFiles, AddonModQuizProvider.COMPONENT, module.id);
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});
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}));
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promises.push(this.quizProvider.getAttemptAccessInformation(quiz.id, 0, false, true, siteId).then((info) => {
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attemptAccessInfo = info;
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}));
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promises.push(this.filepoolProvider.addFilesToQueue(siteId, introFiles, AddonModQuizProvider.COMPONENT, module.id));
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return Promise.all(promises);
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}).then(() => {
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// Check if we need to start a new attempt.
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let attempt = attempts[attempts.length - 1];
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if (!canStart && !attempt) {
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// No attempts and we won't start a new one, so we don't need preflight data.
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return;
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}
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if (canStart && (!attempt || this.quizProvider.isAttemptFinished(attempt.state))) {
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// Check if the user can attempt the quiz.
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if (attemptAccessInfo.preventnewattemptreasons.length) {
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return Promise.reject(this.textUtils.buildMessage(attemptAccessInfo.preventnewattemptreasons));
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}
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startAttempt = true;
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attempt = undefined;
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}
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// Get the preflight data. This function will also start a new attempt if needed.
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return this.getPreflightData(quiz, quizAccessInfo, attempt, single, 'core.download', siteId);
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}).then((data) => {
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preflightData = data;
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const promises = [];
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if (startAttempt) {
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// Re-fetch user attempts since we created a new one.
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promises.push(this.quizProvider.getUserAttempts(quiz.id, 'all', true, false, true, siteId).then((atts) => {
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attempts = atts;
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return this.getAttemptsFeedbackFiles(quiz, attempts).then((attemptFiles) => {
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return this.filepoolProvider.addFilesToQueue(siteId, attemptFiles, AddonModQuizProvider.COMPONENT,
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module.id);
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});
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}));
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// Update the download time to prevent detecting the new attempt as an update.
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promises.push(this.filepoolProvider.updatePackageDownloadTime(siteId, AddonModQuizProvider.COMPONENT, module.id)
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.catch(() => {
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// Ignore errors.
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}));
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}
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// Fetch attempt related data.
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promises.push(this.quizProvider.getCombinedReviewOptions(quiz.id, true, siteId));
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promises.push(this.quizProvider.getUserBestGrade(quiz.id, true, siteId));
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promises.push(this.quizProvider.getGradeFromGradebook(courseId, module.id, true, siteId).then((gradebookData) => {
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if (typeof gradebookData.graderaw != 'undefined') {
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return this.quizProvider.getFeedbackForGrade(quiz.id, gradebookData.graderaw, true, siteId);
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}
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}).catch(() => {
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// Ignore errors.
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}));
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promises.push(this.quizProvider.getAttemptAccessInformation(quiz.id, 0, false, true, siteId)); // Last attempt.
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return Promise.all(promises);
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}).then(() => {
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// We have quiz data, now we'll get specific data for each attempt.
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const promises = [];
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attempts.forEach((attempt) => {
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promises.push(this.prefetchAttempt(quiz, attempt, preflightData, siteId));
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});
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return Promise.all(promises);
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}).then(() => {
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if (!canStart) {
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// Nothing else to do.
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return;
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}
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// If there's nothing to send, mark the quiz as synchronized.
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// We don't return the promises because it should be fast and we don't want to block the user for this.
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if (!this.syncProvider) {
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this.syncProvider = this.injector.get(AddonModQuizSyncProvider);
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}
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this.syncProvider.hasDataToSync(quiz.id, siteId).then((hasData) => {
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if (!hasData) {
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this.syncProvider.setSyncTime(quiz.id, siteId);
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}
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});
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});
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}
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/**
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* Prefetch all WS data for an attempt.
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*
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* @param quiz Quiz.
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* @param attempt Attempt.
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* @param preflightData Preflight required data (like password).
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* @param siteId Site ID. If not defined, current site.
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* @return Promise resolved when the prefetch is finished. Data returned is not reliable.
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*/
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prefetchAttempt(quiz: any, attempt: any, preflightData: any, siteId?: string): Promise<any> {
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const pages = this.quizProvider.getPagesFromLayout(attempt.layout),
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promises = [],
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isSequential = this.quizProvider.isNavigationSequential(quiz);
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if (this.quizProvider.isAttemptFinished(attempt.state)) {
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// Attempt is finished, get feedback and review data.
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const attemptGrade = this.quizProvider.rescaleGrade(attempt.sumgrades, quiz, false);
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if (typeof attemptGrade != 'undefined') {
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promises.push(this.quizProvider.getFeedbackForGrade(quiz.id, Number(attemptGrade), true, siteId));
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}
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// Get the review for each page.
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pages.forEach((page) => {
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promises.push(this.quizProvider.getAttemptReview(attempt.id, page, true, siteId).catch(() => {
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// Ignore failures, maybe the user can't review the attempt.
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}));
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});
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// Get the review for all questions in same page.
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promises.push(this.quizProvider.getAttemptReview(attempt.id, -1, true, siteId).then((data) => {
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// Download the files inside the questions.
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const questionPromises = [];
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data.questions.forEach((question) => {
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questionPromises.push(this.questionHelper.prefetchQuestionFiles(
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question, this.component, quiz.coursemodule, siteId, attempt.uniqueid));
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});
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return Promise.all(questionPromises);
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}, () => {
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// Ignore failures, maybe the user can't review the attempt.
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}));
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} else {
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// Attempt not finished, get data needed to continue the attempt.
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promises.push(this.quizProvider.getAttemptAccessInformation(quiz.id, attempt.id, false, true, siteId));
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promises.push(this.quizProvider.getAttemptSummary(attempt.id, preflightData, false, true, false, siteId));
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if (attempt.state == AddonModQuizProvider.ATTEMPT_IN_PROGRESS) {
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// Get data for each page.
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pages.forEach((page) => {
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if (isSequential && page < attempt.currentpage) {
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// Sequential quiz, cannot get pages before the current one.
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return;
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}
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promises.push(this.quizProvider.getAttemptData(attempt.id, page, preflightData, false, true, siteId)
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.then((data) => {
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// Download the files inside the questions.
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const questionPromises = [];
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data.questions.forEach((question) => {
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questionPromises.push(this.questionHelper.prefetchQuestionFiles(
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question, this.component, quiz.coursemodule, siteId, attempt.uniqueid));
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});
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return Promise.all(questionPromises);
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}));
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});
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}
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}
|
|
|
|
return Promise.all(promises);
|
|
}
|
|
|
|
/**
|
|
* Prefetches some data for a quiz and its last attempt.
|
|
* This function will NOT start a new attempt, it only reads data for the quiz and the last attempt.
|
|
*
|
|
* @param quiz Quiz.
|
|
* @param askPreflight Whether it should ask for preflight data if needed.
|
|
* @param siteId Site ID. If not defined, current site.
|
|
* @return Promise resolved when done.
|
|
*/
|
|
prefetchQuizAndLastAttempt(quiz: any, askPreflight?: boolean, siteId?: string): Promise<any> {
|
|
siteId = siteId || this.sitesProvider.getCurrentSiteId();
|
|
|
|
const promises = [];
|
|
let attempts,
|
|
quizAccessInfo,
|
|
preflightData,
|
|
lastAttempt;
|
|
|
|
// Get quiz data.
|
|
promises.push(this.quizProvider.getQuizAccessInformation(quiz.id, false, true, siteId).then((info) => {
|
|
quizAccessInfo = info;
|
|
}));
|
|
promises.push(this.quizProvider.getQuizRequiredQtypes(quiz.id, true, siteId));
|
|
promises.push(this.quizProvider.getCombinedReviewOptions(quiz.id, true, siteId));
|
|
promises.push(this.quizProvider.getUserBestGrade(quiz.id, true, siteId));
|
|
promises.push(this.quizProvider.getUserAttempts(quiz.id, 'all', true, false, true, siteId).then((atts) => {
|
|
attempts = atts;
|
|
}));
|
|
promises.push(this.quizProvider.getGradeFromGradebook(quiz.course, quiz.coursemodule, true, siteId)
|
|
.then((gradebookData) => {
|
|
if (typeof gradebookData.graderaw != 'undefined') {
|
|
return this.quizProvider.getFeedbackForGrade(quiz.id, gradebookData.graderaw, true, siteId);
|
|
}
|
|
}).catch(() => {
|
|
// Ignore errors.
|
|
}));
|
|
promises.push(this.quizProvider.getAttemptAccessInformation(quiz.id, 0, false, true, siteId)); // Last attempt.
|
|
|
|
return Promise.all(promises).then(() => {
|
|
lastAttempt = attempts[attempts.length - 1];
|
|
if (!lastAttempt) {
|
|
// No need to get attempt data, we don't need preflight data.
|
|
return;
|
|
}
|
|
|
|
// Get the preflight data.
|
|
return this.getPreflightData(quiz, quizAccessInfo, lastAttempt, askPreflight, 'core.download', siteId);
|
|
|
|
}).then((data) => {
|
|
preflightData = data;
|
|
|
|
if (lastAttempt) {
|
|
// Get data for last attempt.
|
|
return this.prefetchAttempt(quiz, lastAttempt, preflightData, siteId);
|
|
}
|
|
}).then(() => {
|
|
// Prefetch finished, set the right status.
|
|
return this.setStatusAfterPrefetch(quiz, attempts, true, false, siteId);
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Set the right status to a quiz after prefetching.
|
|
* If the last attempt is finished or there isn't one, set it as not downloaded to show download icon.
|
|
*
|
|
* @param quiz Quiz.
|
|
* @param attempts List of attempts. If not provided, they will be calculated.
|
|
* @param forceCache Whether it should always return cached data. Only if attempts is undefined.
|
|
* @param ignoreCache Whether it should ignore cached data (it will always fail in offline or server down). Only if
|
|
* attempts is undefined.
|
|
* @param siteId Site ID. If not defined, current site.
|
|
* @return Promise resolved when done.
|
|
*/
|
|
setStatusAfterPrefetch(quiz: any, attempts?: any[], forceCache?: boolean, ignoreCache?: boolean, siteId?: string)
|
|
: Promise<any> {
|
|
siteId = siteId || this.sitesProvider.getCurrentSiteId();
|
|
|
|
const promises = [];
|
|
let status;
|
|
|
|
if (!attempts) {
|
|
// Get the attempts.
|
|
promises.push(this.quizProvider.getUserAttempts(quiz.id, 'all', true, forceCache, ignoreCache, siteId).then((atts) => {
|
|
attempts = atts;
|
|
}));
|
|
}
|
|
|
|
// Check the current status of the quiz.
|
|
promises.push(this.filepoolProvider.getPackageStatus(siteId, this.component, quiz.coursemodule).then((stat) => {
|
|
status = stat;
|
|
}));
|
|
|
|
return Promise.all(promises).then(() => {
|
|
|
|
if (status !== CoreConstants.NOT_DOWNLOADED) {
|
|
// Quiz was downloaded, set the new status.
|
|
// If no attempts or last is finished we'll mark it as not downloaded to show download icon.
|
|
const lastAttempt = attempts[attempts.length - 1],
|
|
isLastFinished = !lastAttempt || this.quizProvider.isAttemptFinished(lastAttempt.state),
|
|
newStatus = isLastFinished ? CoreConstants.NOT_DOWNLOADED : CoreConstants.DOWNLOADED;
|
|
|
|
return this.filepoolProvider.storePackageStatus(siteId, newStatus, this.component, quiz.coursemodule);
|
|
}
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Sync a module.
|
|
*
|
|
* @param module Module.
|
|
* @param courseId Course ID the module belongs to
|
|
* @param siteId Site ID. If not defined, current site.
|
|
* @return Promise resolved when done.
|
|
*/
|
|
sync(module: any, courseId: number, siteId?: any): Promise<any> {
|
|
if (!this.syncProvider) {
|
|
this.syncProvider = this.injector.get(AddonModQuizSyncProvider);
|
|
}
|
|
|
|
return this.quizProvider.getQuiz(courseId, module.id).then((quiz) => {
|
|
return this.syncProvider.syncQuiz(quiz, false, siteId).then((results) => {
|
|
module.attemptFinished = (results && results.attemptFinished) || false;
|
|
|
|
return results;
|
|
}).catch(() => {
|
|
// Ignore errors.
|
|
|
|
module.attemptFinished = false;
|
|
});
|
|
});
|
|
}
|
|
}
|