657 lines
16 KiB
JavaScript
657 lines
16 KiB
JavaScript
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const db = require('../models');
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const FileDBApi = require('./file');
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const crypto = require('crypto');
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const Utils = require('../utils');
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const Sequelize = db.Sequelize;
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const Op = Sequelize.Op;
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module.exports = class CoursesDBApi {
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static async create(data, options) {
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const currentUser = (options && options.currentUser) || { id: null };
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const transaction = (options && options.transaction) || undefined;
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const courses = await db.courses.create(
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{
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id: data.id || undefined,
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title: data.title
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||
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null
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,
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slug: data.slug
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null
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,
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summary: data.summary
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null
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,
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description: data.description
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null
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,
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status: data.status
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null
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,
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level: data.level
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null
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,
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language: data.language
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null
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,
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price: data.price
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null
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,
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is_free: data.is_free
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false
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,
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published_at: data.published_at
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null
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,
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importHash: data.importHash || null,
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createdById: currentUser.id,
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updatedById: currentUser.id,
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},
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{ transaction },
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);
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await courses.setInstructor( data.instructor || null, {
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transaction,
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});
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await FileDBApi.replaceRelationFiles(
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{
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belongsTo: db.courses.getTableName(),
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belongsToColumn: 'thumbnail',
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belongsToId: courses.id,
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},
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data.thumbnail,
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options,
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);
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return courses;
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}
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static async bulkImport(data, options) {
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const currentUser = (options && options.currentUser) || { id: null };
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const transaction = (options && options.transaction) || undefined;
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// Prepare data - wrapping individual data transformations in a map() method
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const coursesData = data.map((item, index) => ({
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id: item.id || undefined,
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title: item.title
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null
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,
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slug: item.slug
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null
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,
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summary: item.summary
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null
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,
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description: item.description
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null
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,
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status: item.status
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null
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,
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level: item.level
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null
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,
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language: item.language
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null
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,
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price: item.price
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null
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,
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is_free: item.is_free
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false
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,
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published_at: item.published_at
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null
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,
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importHash: item.importHash || null,
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createdById: currentUser.id,
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updatedById: currentUser.id,
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createdAt: new Date(Date.now() + index * 1000),
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}));
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// Bulk create items
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const courses = await db.courses.bulkCreate(coursesData, { transaction });
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// For each item created, replace relation files
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for (let i = 0; i < courses.length; i++) {
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await FileDBApi.replaceRelationFiles(
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{
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belongsTo: db.courses.getTableName(),
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belongsToColumn: 'thumbnail',
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belongsToId: courses[i].id,
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},
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data[i].thumbnail,
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options,
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);
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}
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return courses;
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}
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static async update(id, data, options) {
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const currentUser = (options && options.currentUser) || {id: null};
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const transaction = (options && options.transaction) || undefined;
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const courses = await db.courses.findByPk(id, {}, {transaction});
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const updatePayload = {};
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if (data.title !== undefined) updatePayload.title = data.title;
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if (data.slug !== undefined) updatePayload.slug = data.slug;
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if (data.summary !== undefined) updatePayload.summary = data.summary;
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if (data.description !== undefined) updatePayload.description = data.description;
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if (data.status !== undefined) updatePayload.status = data.status;
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if (data.level !== undefined) updatePayload.level = data.level;
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if (data.language !== undefined) updatePayload.language = data.language;
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if (data.price !== undefined) updatePayload.price = data.price;
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if (data.is_free !== undefined) updatePayload.is_free = data.is_free;
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if (data.published_at !== undefined) updatePayload.published_at = data.published_at;
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updatePayload.updatedById = currentUser.id;
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await courses.update(updatePayload, {transaction});
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if (data.instructor !== undefined) {
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await courses.setInstructor(
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data.instructor,
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{ transaction }
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);
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}
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await FileDBApi.replaceRelationFiles(
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{
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belongsTo: db.courses.getTableName(),
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belongsToColumn: 'thumbnail',
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belongsToId: courses.id,
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},
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data.thumbnail,
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options,
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);
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return courses;
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}
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static async deleteByIds(ids, options) {
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const currentUser = (options && options.currentUser) || { id: null };
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const transaction = (options && options.transaction) || undefined;
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const courses = await db.courses.findAll({
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where: {
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id: {
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[Op.in]: ids,
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},
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},
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transaction,
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});
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await db.sequelize.transaction(async (transaction) => {
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for (const record of courses) {
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await record.update(
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{deletedBy: currentUser.id},
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{transaction}
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);
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}
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for (const record of courses) {
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await record.destroy({transaction});
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}
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});
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return courses;
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}
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static async remove(id, options) {
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const currentUser = (options && options.currentUser) || {id: null};
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const transaction = (options && options.transaction) || undefined;
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const courses = await db.courses.findByPk(id, options);
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await courses.update({
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deletedBy: currentUser.id
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}, {
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transaction,
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});
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await courses.destroy({
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transaction
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});
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return courses;
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}
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static async findBy(where, options) {
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const transaction = (options && options.transaction) || undefined;
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const courses = await db.courses.findOne(
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{ where },
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{ transaction },
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);
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if (!courses) {
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return courses;
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}
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const output = courses.get({plain: true});
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output.lessons_course = await courses.getLessons_course({
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transaction
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});
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output.enrollments_course = await courses.getEnrollments_course({
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transaction
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});
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output.thumbnail = await courses.getThumbnail({
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transaction
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});
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output.instructor = await courses.getInstructor({
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transaction
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});
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return output;
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}
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static async findAll(
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filter,
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options
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) {
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const limit = filter.limit || 0;
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let offset = 0;
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let where = {};
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const currentPage = +filter.page;
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offset = currentPage * limit;
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const orderBy = null;
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const transaction = (options && options.transaction) || undefined;
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let include = [
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{
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model: db.users,
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as: 'instructor',
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where: filter.instructor ? {
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[Op.or]: [
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{ id: { [Op.in]: filter.instructor.split('|').map(term => Utils.uuid(term)) } },
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{
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firstName: {
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[Op.or]: filter.instructor.split('|').map(term => ({ [Op.iLike]: `%${term}%` }))
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}
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},
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]
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} : {},
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},
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{
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model: db.file,
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as: 'thumbnail',
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},
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];
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if (filter) {
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if (filter.id) {
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where = {
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...where,
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['id']: Utils.uuid(filter.id),
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};
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}
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if (filter.title) {
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where = {
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...where,
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[Op.and]: Utils.ilike(
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'courses',
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'title',
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filter.title,
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),
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};
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}
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if (filter.slug) {
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where = {
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...where,
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[Op.and]: Utils.ilike(
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'courses',
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'slug',
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filter.slug,
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),
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};
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}
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if (filter.summary) {
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where = {
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...where,
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[Op.and]: Utils.ilike(
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'courses',
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'summary',
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filter.summary,
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),
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};
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}
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if (filter.description) {
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where = {
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...where,
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[Op.and]: Utils.ilike(
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'courses',
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'description',
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filter.description,
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),
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};
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}
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if (filter.language) {
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where = {
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...where,
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[Op.and]: Utils.ilike(
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'courses',
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'language',
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filter.language,
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),
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};
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}
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if (filter.priceRange) {
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const [start, end] = filter.priceRange;
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if (start !== undefined && start !== null && start !== '') {
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where = {
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...where,
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price: {
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...where.price,
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[Op.gte]: start,
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},
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};
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}
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if (end !== undefined && end !== null && end !== '') {
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where = {
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...where,
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price: {
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...where.price,
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[Op.lte]: end,
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},
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};
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}
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}
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if (filter.published_atRange) {
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const [start, end] = filter.published_atRange;
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if (start !== undefined && start !== null && start !== '') {
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where = {
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...where,
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published_at: {
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...where.published_at,
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[Op.gte]: start,
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},
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};
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}
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if (end !== undefined && end !== null && end !== '') {
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where = {
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...where,
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published_at: {
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...where.published_at,
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[Op.lte]: end,
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},
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};
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}
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}
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if (filter.active !== undefined) {
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where = {
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...where,
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active: filter.active === true || filter.active === 'true'
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};
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}
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if (filter.status) {
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where = {
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...where,
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status: filter.status,
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};
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}
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if (filter.level) {
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where = {
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...where,
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level: filter.level,
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};
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}
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if (filter.is_free) {
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where = {
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...where,
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is_free: filter.is_free,
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};
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}
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if (filter.createdAtRange) {
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const [start, end] = filter.createdAtRange;
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if (start !== undefined && start !== null && start !== '') {
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where = {
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...where,
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['createdAt']: {
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...where.createdAt,
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[Op.gte]: start,
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},
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};
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}
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if (end !== undefined && end !== null && end !== '') {
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where = {
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...where,
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['createdAt']: {
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...where.createdAt,
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[Op.lte]: end,
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},
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};
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}
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}
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}
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const queryOptions = {
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where,
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include,
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distinct: true,
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order: filter.field && filter.sort
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? [[filter.field, filter.sort]]
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: [['createdAt', 'desc']],
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transaction: options?.transaction,
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logging: console.log
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};
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if (!options?.countOnly) {
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queryOptions.limit = limit ? Number(limit) : undefined;
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queryOptions.offset = offset ? Number(offset) : undefined;
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}
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try {
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const { rows, count } = await db.courses.findAndCountAll(queryOptions);
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return {
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rows: options?.countOnly ? [] : rows,
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count: count
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};
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} catch (error) {
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console.error('Error executing query:', error);
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throw error;
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}
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}
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static async findAllAutocomplete(query, limit, offset, ) {
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let where = {};
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if (query) {
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where = {
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[Op.or]: [
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{ ['id']: Utils.uuid(query) },
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Utils.ilike(
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'courses',
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'title',
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query,
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),
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],
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};
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}
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const records = await db.courses.findAll({
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attributes: [ 'id', 'title' ],
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where,
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limit: limit ? Number(limit) : undefined,
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offset: offset ? Number(offset) : undefined,
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orderBy: [['title', 'ASC']],
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});
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return records.map((record) => ({
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id: record.id,
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label: record.title,
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}));
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}
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};
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