Changed dataAccess index

pull/1/head
Trivernis 5 years ago
parent 0ca174b335
commit 6765026742

@ -1,7 +1,7 @@
import {Runtime} from "inspector";
import {Pool} from "pg";
import globals from "../globals";
import {QueryHelper} from "../QueryHelper";
import {User} from "./User";
const config = globals.config;
const tableCreationFile = __dirname + "/../sql/create-tables.sql";
@ -12,27 +12,21 @@ const dbClient: Pool = new Pool({
port: config.database.port,
user: config.database.user,
});
const queryHelper = new QueryHelper(dbClient, tableCreationFile);
export class DTO {
private queryHelper: QueryHelper;
constructor() {
this.queryHelper = queryHelper;
}
export const queryHelper = new QueryHelper(dbClient, tableCreationFile);
namespace dataaccess {
/**
* Initializes everything that needs to be initialized asynchronous.
*/
public async init() {
await this.queryHelper.createTables();
export async function init() {
await queryHelper.createTables();
}
/**
* Returns the user by id
* @param userId
*/
public getUser(userId: number) {
export function getUser(userId: number) {
return new User(userId);
}
@ -40,209 +34,30 @@ export class DTO {
* Returns the user by handle.
* @param userHandle
*/
public async getUserByHandle(userHandle: string) {
export async function getUserByHandle(userHandle: string) {
const result = await this.queryHelper.first({
text: "SELECT * FROM users WHERE users.handle = $1",
values: [userHandle],
});
return new User(result.id, result);
}
}
export class User {
public readonly id: number;
private $name: string;
private $handle: string;
private $email: string;
private $greenpoints: number;
private $joinedAt: string;
private dataLoaded: boolean;
/**
* Constructor of the user
* @param id
* @param row
* Enum representing the types of votes that can be performed on a post.
*/
constructor(id: number, private row?: any) {
this.id = id;
export enum VoteType {
UPVOTE = "UPVOTE",
DOWNVOTE = "DOWNVOTE",
}
/**
* The name of the user
* Enum representing the types of request that can be created.
*/
public async name(): Promise<string> {
if (!this.dataLoaded) {
await this.loadData();
export enum RequestType {
FRIENDREQUEST = "FRIENDREQUEST",
GROUPINVITE = "GROUPINVITE",
EVENTINVITE = "EVENTINVITE",
}
return this.$name;
}
/**
* Sets the username of the user
* @param name
*/
public async setName(name: string): Promise<string> {
const result = await queryHelper.first({
text: "UPDATE TABLE users SET name = $1 WHERE id = $2",
values: [name, this.id],
});
return result.name;
}
/**
* The unique handle of the user.
*/
public async handle(): Promise<string> {
if (!this.dataLoaded) {
await this.loadData();
}
return this.$handle;
}
/**
* Updates the handle of the user
*/
public async setHandle(handle: string): Promise<string> {
const result = await queryHelper.first({
text: "UPDATE TABLE users SET handle = $1 WHERE id = $2",
values: [handle, this.id],
});
return result.handle;
}
/**
* The email of the user
*/
public async email(): Promise<string> {
if (!this.dataLoaded) {
await this.loadData();
}
return this.$email;
}
/**
* Sets the email of the user
* @param email
*/
public async setEmail(email: string): Promise<string> {
const result = await queryHelper.first({
text: "UPDATE TABLE users SET email = $1 WHERE users.id = $2 RETURNING email",
values: [email, this.id],
});
return result.email;
}
/**
* The number of greenpoints of the user
*/
public async greenpoints(): Promise<number> {
if (!this.dataLoaded) {
await this.loadData();
}
return this.$greenpoints;
}
/**
* Sets the greenpoints of a user.
* @param points
*/
public async setGreenpoints(points: number): Promise<number> {
const result = await queryHelper.first({
text: "UPDATE users SET greenpoints = $1 WHERE id = $2 RETURNING greenpoints",
values: [points, this.id],
});
return result.greenpoints;
}
/**
* The date the user joined the platform
*/
public async joinedAt(): Promise<Date> {
if (!this.dataLoaded) {
await this.loadData();
}
return new Date(this.$joinedAt);
}
/**
* Fetches the data for the user.
*/
private async loadData(): Promise<void> {
let result: any;
if (this.row) {
result = this.row;
} else {
result = await queryHelper.first({
text: "SELECT * FROM users WHERE user.id = $1",
values: [this.id],
});
}
if (result) {
this.$name = result.name;
this.$handle = result.handle;
this.$email = result.email;
this.$greenpoints = result.greenpoints;
this.$joinedAt = result.joined_at;
this.dataLoaded = true;
}
}
}
export class Post {
public readonly id: number;
private $upvotes: number;
private $downvotes: number;
private $createdAt: string;
private $content: string;
private $author: number;
private $type: string;
private dataLoaded: boolean = false;
constructor(id: number, private row?: any) {
this.id = id;
}
/**
* Returns the upvotes of a post.
*/
public async upvotes() {
if (!this.dataLoaded) {
await this.loadData();
}
return this.$upvotes;
}
/**
* Returns the downvotes of the post
*/
public async downvotes() {
if (!this.dataLoaded) {
await this.loadData();
}
return this.$downvotes;
}
/**
* Loads the data from the database if needed.
*/
private async loadData(): Promise<void> {
let result: any;
if (this.row) {
result = this.row;
} else {
result = await queryHelper.first({
text: "SELECT * FROM posts WHERE posts.id = $1",
values: [this.id],
});
}
if (result) {
this.$author = result.author;
this.$content = result.content;
this.$downvotes = result.downvotes;
this.$upvotes = result.upvotes;
this.$createdAt = result.created_at;
this.$type = result.type;
this.dataLoaded = true;
}
}
}
export default dataaccess;

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