forked from EVOgeek/Vmeda.Online
808 lines
30 KiB
TypeScript
808 lines
30 KiB
TypeScript
// (C) Copyright 2015 Martin Dougiamas
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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 } from '@angular/core';
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import { CoreLoggerProvider } from '../../../providers/logger';
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import { CoreSitesProvider } from '../../../providers/sites';
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import { CoreSite } from '../../../classes/site';
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/**
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* Service that provides some features regarding lists of courses and categories.
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*/
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@Injectable()
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export class CoreCoursesProvider {
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public static SEARCH_PER_PAGE = 20;
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public static ENROL_INVALID_KEY = 'CoreCoursesEnrolInvalidKey';
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public static EVENT_MY_COURSES_UPDATED = 'courses_my_courses_updated';
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public static EVENT_MY_COURSES_REFRESHED = 'courses_my_courses_refreshed';
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public static ACCESS_GUEST = 'courses_access_guest';
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public static ACCESS_DEFAULT = 'courses_access_default';
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protected ROOT_CACHE_KEY = 'mmCourses:';
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protected logger;
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constructor(logger: CoreLoggerProvider, private sitesProvider: CoreSitesProvider) {
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this.logger = logger.getInstance('CoreCoursesProvider');
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}
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/**
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* Get categories. They can be filtered by id.
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*
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* @param {number} categoryId Category ID to get.
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* @param {boolean} [addSubcategories] If it should add subcategories to the list.
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* @param {string} [siteId] Site to get the courses from. If not defined, use current site.
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* @return {Promise<any[]>} Promise resolved with the categories.
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*/
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getCategories(categoryId: number, addSubcategories?: boolean, siteId?: string) : Promise<any[]> {
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return this.sitesProvider.getSite(siteId).then((site) => {
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// Get parent when id is the root category.
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let criteriaKey = categoryId == 0 ? 'parent' : 'id',
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data = {
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criteria: [
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{ key: criteriaKey, value: categoryId }
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],
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addsubcategories: addSubcategories ? 1 : 0
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},
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preSets = {
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cacheKey: this.getCategoriesCacheKey(categoryId, addSubcategories)
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}
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return site.read('core_course_get_categories', data, preSets);
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});
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}
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/**
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* Get cache key for get categories methods WS call.
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*
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* @param {number} categoryId Category ID to get.
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* @param {boolean} [addSubcategories] If add subcategories to the list.
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* @return {string} Cache key.
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*/
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protected getCategoriesCacheKey(categoryId: number, addSubcategories?: boolean) : string {
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return this.ROOT_CACHE_KEY + 'categories:' + categoryId + ':' + !!addSubcategories;
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}
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/**
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* Given a list of course IDs to get course options, return the list of courseIds to use.
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*
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* @param {number[]} courseIds Course IDs.
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* @param {string} [siteId] Site Id. If not defined, use current site.
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* @return {Promise} Promise resolved with the list of course IDs.
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*/
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protected getCourseIdsForOptions(courseIds: number[], siteId?: string) : Promise<number[]> {
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return this.sitesProvider.getSite(siteId).then((site) => {
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const siteHomeId = site.getSiteHomeId();
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if (courseIds.length == 1) {
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// Only 1 course, check if it belongs to the user courses. If so, use all user courses.
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return this.getUserCourses(true, siteId).then((courses) => {
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let courseId = courseIds[0],
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useAllCourses = false;
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if (courseId == siteHomeId) {
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// It's site home, use all courses.
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useAllCourses = true;
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} else {
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for (let i = 0; i < courses.length; i++) {
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if (courses[i].id == courseId) {
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useAllCourses = true;
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break;
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}
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}
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}
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if (useAllCourses) {
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// User is enrolled, retrieve all the courses.
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courseIds = courses.map((course) => {
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return course.id;
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});
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// Always add the site home ID.
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courseIds.push(siteHomeId);
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}
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return courseIds;
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}).catch(() => {
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// Ignore errors.
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return courseIds;
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});
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} else {
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return courseIds;
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}
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});
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}
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/**
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* Check if My Courses is disabled in a certain site.
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*
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* @param {string} [siteId] Site Id. If not defined, use current site.
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* @return {Promise<boolean>} Promise resolved with true if disabled, rejected or resolved with false otherwise.
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*/
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isMyCoursesDisabled(siteId?: string) : Promise<boolean> {
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return this.sitesProvider.getSite(siteId).then((site) => {
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return this.isMyCoursesDisabledInSite(site);
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});
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}
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/**
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* Check if My Courses is disabled in a certain site.
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*
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* @param {CoreSite} [site] Site. If not defined, use current site.
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* @return {boolean} Whether it's disabled.
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*/
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isMyCoursesDisabledInSite(site?: CoreSite) : boolean {
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site = site || this.sitesProvider.getCurrentSite();
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return site.isFeatureDisabled('$mmSideMenuDelegate_mmCourses');
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}
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/**
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* Check if Search Courses is disabled in a certain site.
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*
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* @param {string} [siteId] Site Id. If not defined, use current site.
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* @return {Promise<boolean>} Promise resolved with true if disabled, rejected or resolved with false otherwise.
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*/
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isSearchCoursesDisabled(siteId?: string) : Promise<boolean> {
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return this.sitesProvider.getSite(siteId).then((site) => {
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return this.isSearchCoursesDisabledInSite(site);
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});
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}
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/**
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* Check if Search Courses is disabled in a certain site.
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*
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* @param {CoreSite} [site] Site. If not defined, use current site.
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* @return {boolean} Whether it's disabled.
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*/
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isSearchCoursesDisabledInSite(site?: CoreSite) : boolean {
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site = site || this.sitesProvider.getCurrentSite();
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return site.isFeatureDisabled('$mmCoursesDelegate_search');
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}
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/**
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* Get course.
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*
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* @param {number} id ID of the course to get.
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* @param {string} [siteId] Site to get the courses from. If not defined, use current site.
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* @return {Promise<any>} Promise resolved with the course.
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*/
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getCourse(id: number, siteId?: string) : Promise<any> {
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return this.getCourses([id], siteId).then((courses) => {
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if (courses && courses.length > 0) {
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return courses[0];
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}
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return Promise.reject(null);
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});
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}
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/**
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* Get the enrolment methods from a course.
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*
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* @param {number} id ID of the course.
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* @param {string} [siteId] Site ID. If not defined, use current site.
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* @return {Promise<any[]} Promise resolved with the methods.
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*/
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getCourseEnrolmentMethods(id: number, siteId?: string) : Promise<any[]> {
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return this.sitesProvider.getSite(siteId).then((site) => {
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let params = {
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courseid: id
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},
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preSets = {
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cacheKey: this.getCourseEnrolmentMethodsCacheKey(id)
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}
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return site.read('core_enrol_get_course_enrolment_methods', params, preSets);
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});
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}
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/**
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* Get cache key for get course enrolment methods WS call.
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*
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* @param {number} id Course ID.
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* @return {string} Cache key.
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*/
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protected getCourseEnrolmentMethodsCacheKey(id: number) : string {
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return this.ROOT_CACHE_KEY + 'enrolmentmethods:' + id;
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}
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/**
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* Get info from a course guest enrolment method.
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*
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* @param {number} instanceId Guest instance ID.
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* @param {string} [siteId] Site ID. If not defined, use current site.
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* @return {Promise<any>} Promise resolved when the info is retrieved.
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*/
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getCourseGuestEnrolmentInfo(instanceId: number, siteId?: string) : Promise<any> {
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return this.sitesProvider.getSite(siteId).then((site) => {
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let params = {
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instanceid: instanceId
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},
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preSets = {
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cacheKey: this.getCourseGuestEnrolmentInfoCacheKey(instanceId)
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}
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return site.read('enrol_guest_get_instance_info', params, preSets).then((response) => {
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return response.instanceinfo;
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});
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});
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}
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/**
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* Get cache key for get course guest enrolment methods WS call.
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*
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* @param {number} instanceId Guest instance ID.
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* @return {string} Cache key.
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*/
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protected getCourseGuestEnrolmentInfoCacheKey(instanceId: number) : string {
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return this.ROOT_CACHE_KEY + 'guestinfo:' + instanceId;
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}
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/**
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* Get courses.
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* Warning: if the user doesn't have permissions to view some of the courses passed the WS call will fail.
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* The user must be able to view ALL the courses passed.
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*
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* @param {number[]} ids List of IDs of the courses to get.
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* @param {string} [siteId] Site to get the courses from. If not defined, use current site.
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* @return {Promise<any[]>} Promise resolved with the courses.
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*/
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getCourses(ids: number[], siteId?: string) : Promise<any[]> {
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if (!Array.isArray(ids)) {
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return Promise.reject(null);
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} else if (ids.length === 0) {
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return Promise.resolve([]);
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}
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return this.sitesProvider.getSite(siteId).then((site) => {
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let data = {
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options: {
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ids: ids
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}
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},
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preSets = {
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cacheKey: this.getCoursesCacheKey(ids)
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}
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return site.read('core_course_get_courses', data, preSets);
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});
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}
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/**
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* Get cache key for get courses WS call.
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*
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* @param {number[]} ids Courses IDs.
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* @return {string} Cache key.
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*/
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protected getCoursesCacheKey(ids: number[]) : string {
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return this.ROOT_CACHE_KEY + 'course:' + JSON.stringify(ids);
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}
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/**
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* Get courses. They can be filtered by field.
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*
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* @param {string} [field] The field to search. Can be left empty for all courses or:
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* id: course id.
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* ids: comma separated course ids.
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* shortname: course short name.
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* idnumber: course id number.
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* category: category id the course belongs to.
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* @param {any} [value] The value to match.
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* @param {string} [siteId] Site ID. If not defined, use current site.
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* @return {Promise<any[]>} Promise resolved with the courses.
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*/
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getCoursesByField(field?: string, value?: any, siteId?: string) : Promise<any[]> {
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return this.sitesProvider.getSite(siteId).then((site) => {
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let data = {
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field: field || '',
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value: field ? value : ''
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},
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preSets = {
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cacheKey: this.getCoursesByFieldCacheKey(field, value)
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}
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return site.read('core_course_get_courses_by_field', data, preSets).then((courses) => {
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if (courses.courses) {
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// Courses will be sorted using sortorder if avalaible.
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return courses.courses.sort((a, b) => {
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if (typeof a.sortorder == 'undefined' && typeof b.sortorder == 'undefined') {
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return b.id - a.id;
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}
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if (typeof a.sortorder == 'undefined') {
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return 1;
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}
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if (typeof b.sortorder == 'undefined') {
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return -1;
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}
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return a.sortorder - b.sortorder;
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});
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}
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return Promise.reject(null);
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});
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});
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}
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/**
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* Get cache key for get courses WS call.
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*
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* @param {string} [field] The field to search.
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* @param {any} [value] The value to match.
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* @return {string} Cache key.
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*/
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protected getCoursesByFieldCacheKey(field?: string, value?: any) : string {
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field = field || '';
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value = field ? value : '';
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return this.ROOT_CACHE_KEY + 'coursesbyfield:' + field + ':' + value;
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}
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/**
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* Check if get courses by field WS is available.
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*
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* @return {boolean} Whether get courses by field is available.
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*/
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isGetCoursesByFieldAvailable() : boolean {
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let currentSite = this.sitesProvider.getCurrentSite();
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return currentSite.wsAvailable('core_course_get_courses_by_field');
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}
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/**
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* Get the navigation and administration options for the given courses.
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*
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* @param {number[]} courseIds IDs of courses to get.
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* @param {string} [siteId] Site ID. If not defined, current site.
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* @return {Promise<{navOptions: any, admOptions: any}>} Promise resolved with the options for each course.
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*/
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getCoursesOptions(courseIds: number[], siteId?: string) : Promise<{navOptions: any, admOptions: any}> {
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siteId = siteId || this.sitesProvider.getCurrentSiteId();
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// Get the list of courseIds to use based on the param.
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return this.getCourseIdsForOptions(courseIds, siteId).then((courseIds) => {
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let promises = [],
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navOptions,
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admOptions;
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// Get user navigation and administration options.
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promises.push(this.getUserNavigationOptions(courseIds, siteId).catch(() => {
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// Couldn't get it, return empty options.
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return {};
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}).then((options) => {
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navOptions = options;
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}));
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promises.push(this.getUserAdministrationOptions(courseIds, siteId).catch(() => {
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// Couldn't get it, return empty options.
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return {};
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}).then((options) => {
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admOptions = options;
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}));
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return Promise.all(promises).then(() => {
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return {navOptions: navOptions, admOptions: admOptions};
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});
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});
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}
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/**
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* Get the common part of the cache keys for user administration options WS calls.
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*
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* @return {string} Cache key.
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*/
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protected getUserAdministrationOptionsCommonCacheKey() : string {
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return this.ROOT_CACHE_KEY + 'administrationOptions:';
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}
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/**
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* Get cache key for get user administration options WS call.
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*
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* @param {number[]} courseIds IDs of courses to get.
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* @return {string} Cache key.
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*/
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protected getUserAdministrationOptionsCacheKey(courseIds: number[]) : string {
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return this.getUserAdministrationOptionsCommonCacheKey() + courseIds.join(',');
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}
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/**
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* Get user administration options for a set of courses.
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*
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* @param {number[]} courseIds IDs of courses to get.
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* @param {string} [siteId] Site ID. If not defined, current site.
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* @return {Promise<any>} Promise resolved with administration options for each course.
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*/
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getUserAdministrationOptions(courseIds: number[], siteId?: string) : Promise<any> {
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return this.sitesProvider.getSite(siteId).then((site) => {
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let params = {
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courseids: courseIds
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},
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preSets = {
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cacheKey: this.getUserAdministrationOptionsCacheKey(courseIds)
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}
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return site.read('core_course_get_user_administration_options', params, preSets).then((response) => {
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// Format returned data.
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return this.formatUserOptions(response.courses);
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});
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});
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}
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/**
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* Get the common part of the cache keys for user navigation options WS calls.
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*
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* @param {number[]} courseIds IDs of courses to get.
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* @return {string} Cache key.
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*/
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protected getUserNavigationOptionsCommonCacheKey() : string {
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return this.ROOT_CACHE_KEY + 'navigationOptions:';
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}
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/**
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* Get cache key for get user navigation options WS call.
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*
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* @return {string} Cache key.
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*/
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protected getUserNavigationOptionsCacheKey(courseIds: number[]) : string {
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return this.getUserNavigationOptionsCommonCacheKey() + courseIds.join(',');
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}
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/**
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* Get user navigation options for a set of courses.
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*
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* @param {number[]} courseIds IDs of courses to get.
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* @param {string} [siteId] Site ID. If not defined, current site.
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* @return {Promise<any>} Promise resolved with navigation options for each course.
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*/
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getUserNavigationOptions(courseIds: number[], siteId?: string) : Promise<any> {
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return this.sitesProvider.getSite(siteId).then((site) => {
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let params = {
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courseids: courseIds
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},
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preSets = {
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cacheKey: this.getUserNavigationOptionsCacheKey(courseIds)
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}
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return site.read('core_course_get_user_navigation_options', params, preSets).then((response) => {
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// Format returned data.
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return this.formatUserOptions(response.courses);
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});
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});
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}
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/**
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* Format user navigation or administration options.
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*
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* @param {any[]} courses Navigation or administration options for each course.
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* @return {any} Formatted options.
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*/
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protected formatUserOptions(courses: any[]) : any {
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let result = {};
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courses.forEach((course) => {
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let options = {};
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if (course.options) {
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course.options.forEach((option) => {
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options[option.name] = option.available;
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});
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}
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result[course.id] = options;
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});
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return result;
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}
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/**
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* Get a course the user is enrolled in. This function relies on getUserCourses.
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* preferCache=true will try to speed up the response, but the data returned might not be updated.
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*
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* @param {number} id ID of the course to get.
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* @param {boolean} [preferCache] True if shouldn't call WS if data is cached, false otherwise.
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* @param {string} [siteId] Site to get the courses from. If not defined, use current site.
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* @return {Promise<any>} Promise resolved with the course.
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*/
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getUserCourse(id: number, preferCache?: boolean, siteId?: string) : Promise<any> {
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if (!id) {
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return Promise.reject(null);
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}
|
||
|
||
return this.getUserCourses(preferCache, siteId).then((courses) => {
|
||
let course;
|
||
for (let i in courses) {
|
||
if (courses[i].id == id) {
|
||
course = courses[i];
|
||
break;
|
||
}
|
||
}
|
||
|
||
return course ? course : Promise.reject(null);
|
||
});
|
||
}
|
||
|
||
/**
|
||
* Get user courses.
|
||
*
|
||
* @param {boolean} [preferCache] True if shouldn't call WS if data is cached, false otherwise.
|
||
* @param {string} [siteId] Site to get the courses from. If not defined, use current site.
|
||
* @return {Promise<any[]>} Promise resolved with the courses.
|
||
*/
|
||
getUserCourses(preferCache?: boolean, siteId?: string) : Promise<any[]> {
|
||
return this.sitesProvider.getSite(siteId).then((site) => {
|
||
|
||
let userId = site.getUserId(),
|
||
data = {
|
||
userid: userId
|
||
},
|
||
preSets = {
|
||
cacheKey: this.getUserCoursesCacheKey(),
|
||
omitExpires: !!preferCache
|
||
};
|
||
|
||
return site.read('core_enrol_get_users_courses', data, preSets);
|
||
});
|
||
}
|
||
|
||
/**
|
||
* Get cache key for get user courses WS call.
|
||
*
|
||
* @return {string} Cache key.
|
||
*/
|
||
protected getUserCoursesCacheKey() : string {
|
||
return this.ROOT_CACHE_KEY + 'usercourses';
|
||
}
|
||
|
||
/**
|
||
* Invalidates get categories WS call.
|
||
*
|
||
* @param {number} categoryId Category ID to get.
|
||
* @param {boolean} [addSubcategories] If it should add subcategories to the list.
|
||
* @param {string} [siteId] Site Id. If not defined, use current site.
|
||
* @return {Promise<any>} Promise resolved when the data is invalidated.
|
||
*/
|
||
invalidateCategories(categoryId: number, addSubcategories?: boolean, siteId?: string) : Promise<any> {
|
||
return this.sitesProvider.getSite(siteId).then((site) => {
|
||
return site.invalidateWsCacheForKey(this.getCategoriesCacheKey(categoryId, addSubcategories));
|
||
});
|
||
}
|
||
|
||
/**
|
||
* Invalidates get course WS call.
|
||
*
|
||
* @param {number} id Course ID.
|
||
* @param {string} [siteId] Site Id. If not defined, use current site.
|
||
* @return {Promise<any>} Promise resolved when the data is invalidated.
|
||
*/
|
||
invalidateCourse(id: number, siteId?: string) : Promise<any> {
|
||
return this.invalidateCourses([id], siteId);
|
||
}
|
||
|
||
/**
|
||
* Invalidates get course enrolment methods WS call.
|
||
*
|
||
* @param {number} id Course ID.
|
||
* @param {string} [siteId] Site Id. If not defined, use current site.
|
||
* @return {Promise<any>} Promise resolved when the data is invalidated.
|
||
*/
|
||
invalidateCourseEnrolmentMethods(id: number, siteId?: string) : Promise<any> {
|
||
return this.sitesProvider.getSite(siteId).then((site) => {
|
||
return site.invalidateWsCacheForKey(this.getCourseEnrolmentMethodsCacheKey(id));
|
||
});
|
||
}
|
||
|
||
/**
|
||
* Invalidates get course guest enrolment info WS call.
|
||
*
|
||
* @param {number} instanceId Guest instance ID.
|
||
* @param {string} [siteId] Site Id. If not defined, use current site.
|
||
* @return {Promise<any>} Promise resolved when the data is invalidated.
|
||
*/
|
||
invalidateCourseGuestEnrolmentInfo(instanceId: number, siteId?: string) : Promise<any> {
|
||
return this.sitesProvider.getSite(siteId).then((site) => {
|
||
return site.invalidateWsCacheForKey(this.getCourseGuestEnrolmentInfoCacheKey(instanceId));
|
||
});
|
||
}
|
||
|
||
/**
|
||
* Invalidates the navigation and administration options for the given courses.
|
||
*
|
||
* @param {number[]} courseIds IDs of courses to get.
|
||
* @param {string} [siteId] Site ID to invalidate. If not defined, use current site.
|
||
* @return {Promise<any>} Promise resolved when the data is invalidated.
|
||
*/
|
||
invalidateCoursesOptions(courseIds: number[], siteId?: string) : Promise<any> {
|
||
siteId = siteId || this.sitesProvider.getCurrentSiteId();
|
||
|
||
return this.getCourseIdsForOptions(courseIds, siteId).then((ids) => {
|
||
let promises = [];
|
||
|
||
promises.push(this.invalidateUserAdministrationOptionsForCourses(ids, siteId));
|
||
promises.push(this.invalidateUserNavigationOptionsForCourses(ids, siteId));
|
||
|
||
return Promise.all(promises);
|
||
});
|
||
}
|
||
|
||
/**
|
||
* Invalidates get courses WS call.
|
||
*
|
||
* @param {number[]} ids Courses IDs.
|
||
* @param {string} [siteId] Site Id. If not defined, use current site.
|
||
* @return {Promise<any>} Promise resolved when the data is invalidated.
|
||
*/
|
||
invalidateCourses(ids: number[], siteId?: string) : Promise<any> {
|
||
return this.sitesProvider.getSite(siteId).then((site) => {
|
||
return site.invalidateWsCacheForKey(this.getCoursesCacheKey(ids));
|
||
});
|
||
}
|
||
|
||
/**
|
||
* Invalidates get courses by field WS call.
|
||
*
|
||
* @param {string} [field] See getCoursesByField for info.
|
||
* @param {any} [value] The value to match.
|
||
* @param {string} [siteId] Site Id. If not defined, use current site.
|
||
* @return {Promise<any>} Promise resolved when the data is invalidated.
|
||
*/
|
||
invalidateCoursesByField(field?: string, value?: any, siteId?: string) : Promise<any> {
|
||
return this.sitesProvider.getSite(siteId).then((site) => {
|
||
return site.invalidateWsCacheForKey(this.getCoursesByFieldCacheKey(field, value));
|
||
});
|
||
}
|
||
|
||
/**
|
||
* Invalidates all user administration options.
|
||
*
|
||
* @param {string} [siteId] Site ID to invalidate. If not defined, use current site.
|
||
* @return {Promise<any>} Promise resolved when the data is invalidated.
|
||
*/
|
||
invalidateUserAdministrationOptions(siteId?: string) : Promise<any> {
|
||
return this.sitesProvider.getSite(siteId).then((site) => {
|
||
return site.invalidateWsCacheForKeyStartingWith(this.getUserAdministrationOptionsCommonCacheKey());
|
||
});
|
||
}
|
||
|
||
/**
|
||
* Invalidates user administration options for certain courses.
|
||
*
|
||
* @param {number[]} courseIds IDs of courses.
|
||
* @param {string} [siteId] Site ID to invalidate. If not defined, use current site.
|
||
* @return {Promise<any>} Promise resolved when the data is invalidated.
|
||
*/
|
||
invalidateUserAdministrationOptionsForCourses(courseIds: number[], siteId?: string) : Promise<any> {
|
||
return this.sitesProvider.getSite(siteId).then((site) => {
|
||
return site.invalidateWsCacheForKey(this.getUserAdministrationOptionsCacheKey(courseIds));
|
||
});
|
||
}
|
||
|
||
/**
|
||
* Invalidates get user courses WS call.
|
||
*
|
||
* @param {string} [siteId] Site ID to invalidate. If not defined, use current site.
|
||
* @return {Promise<any>} Promise resolved when the data is invalidated.
|
||
*/
|
||
invalidateUserCourses(siteId?: string) : Promise<any> {
|
||
return this.sitesProvider.getSite(siteId).then((site) => {
|
||
return site.invalidateWsCacheForKey(this.getUserCoursesCacheKey());
|
||
});
|
||
}
|
||
|
||
/**
|
||
* Invalidates all user navigation options.
|
||
*
|
||
* @param {string} [siteId] Site ID to invalidate. If not defined, use current site.
|
||
* @return {Promise<any>} Promise resolved when the data is invalidated.
|
||
*/
|
||
invalidateUserNavigationOptions(siteId?: string) : Promise<any> {
|
||
return this.sitesProvider.getSite(siteId).then((site) => {
|
||
return site.invalidateWsCacheForKeyStartingWith(this.getUserNavigationOptionsCommonCacheKey());
|
||
});
|
||
}
|
||
|
||
/**
|
||
* Invalidates user navigation options for certain courses.
|
||
*
|
||
* @param {number[]} courseIds IDs of courses.
|
||
* @param {string} [siteId] Site ID to invalidate. If not defined, use current site.
|
||
* @return {Promise<any>} Promise resolved when the data is invalidated.
|
||
*/
|
||
invalidateUserNavigationOptionsForCourses(courseIds: number[], siteId?: string) : Promise<any> {
|
||
return this.sitesProvider.getSite(siteId).then((site) => {
|
||
return site.invalidateWsCacheForKey(this.getUserNavigationOptionsCacheKey(courseIds));
|
||
});
|
||
}
|
||
|
||
/**
|
||
* Check if WS to retrieve guest enrolment data is available.
|
||
*
|
||
* @return {boolean} Whether guest WS is available.
|
||
*/
|
||
isGuestWSAvailable() : boolean {
|
||
let currentSite = this.sitesProvider.getCurrentSite();
|
||
return currentSite && currentSite.wsAvailable('enrol_guest_get_instance_info');
|
||
}
|
||
|
||
/**
|
||
* Search courses.
|
||
*
|
||
* @param {string} text Text to search.
|
||
* @param {number} [page=0] Page to get.
|
||
* @param {number} [perPage] Number of courses per page. Defaults to CoreCoursesProvider.SEARCH_PER_PAGE.
|
||
* @param {string} [siteId] Site ID. If not defined, use current site.
|
||
* @return {Promise<{total: number, courses: any[]}>} Promise resolved with the courses and the total of matches.
|
||
*/
|
||
search(text: string, page = 0, perPage?: number, siteId?: string) : Promise<{total: number, courses: any[]}> {
|
||
perPage = perPage || CoreCoursesProvider.SEARCH_PER_PAGE;
|
||
|
||
return this.sitesProvider.getSite(siteId).then((site) => {
|
||
let params = {
|
||
criterianame: 'search',
|
||
criteriavalue: text,
|
||
page: page,
|
||
perpage: perPage
|
||
}, preSets = {
|
||
getFromCache: false
|
||
}
|
||
|
||
return site.read('core_course_search_courses', params, preSets).then((response) => {
|
||
return {total: response.total, courses: response.courses};
|
||
});
|
||
});
|
||
}
|
||
|
||
/**
|
||
* Self enrol current user in a certain course.
|
||
*
|
||
* @param {number} courseId Course ID.
|
||
* @param {string} [password] Password to use.
|
||
* @param {number} [instanceId] Enrol instance ID.
|
||
* @param {string} [siteId] Site ID. If not defined, use current site.
|
||
* @return {Promise<any>} Promise resolved if the user is enrolled. If the password is invalid, the promise is rejected
|
||
* with an object with code = CoreCoursesProvider.ENROL_INVALID_KEY.
|
||
*/
|
||
selfEnrol(courseId: number, password = '', instanceId?: number, siteId?: string) : Promise<any> {
|
||
return this.sitesProvider.getSite(siteId).then((site) => {
|
||
|
||
let params: any = {
|
||
courseid: courseId,
|
||
password: password
|
||
}
|
||
if (instanceId) {
|
||
params.instanceid = instanceId;
|
||
}
|
||
|
||
return site.write('enrol_self_enrol_user', params).then((response) : any => {
|
||
if (response) {
|
||
if (response.status) {
|
||
return true;
|
||
} else if (response.warnings && response.warnings.length) {
|
||
let message;
|
||
response.warnings.forEach((warning) => {
|
||
// Invalid password warnings.
|
||
if (warning.warningcode == '2' || warning.warningcode == '3' || warning.warningcode == '4') {
|
||
message = warning.message;
|
||
}
|
||
});
|
||
|
||
if (message) {
|
||
return Promise.reject({code: CoreCoursesProvider.ENROL_INVALID_KEY, message: message});
|
||
} else {
|
||
return Promise.reject(response.warnings[0]);
|
||
}
|
||
}
|
||
}
|
||
return Promise.reject(null);
|
||
});
|
||
});
|
||
}
|
||
}
|