Add configurable levels

- Add Level table and gql type
- change level field on User
- add hook on user to update the level

CHANGELOG.md

@@ -36,6 +36,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - delete handler for media to delete the corresponding file
 - type for create post to know if it is a media or text post (media posts are invisible until a media file is uploaded)
 - reports and mutations to report posts and create reasons to report
+- level entity
 
 ### Removed
 
@@ -51,6 +52,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - config behaviour to use all files that reside in the ./config directory with the .toml format
 - default response timeout from 2 minutes to 30 seconds
 - cluster api to start workers with a 2 second delay each to avoid race conditions
+- levels to be configured in the backend
 
 ### Fixed
 
@@ -60,6 +62,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - style issues
 - graphql schema for denyRequest using the wrong parameters
 - sendRequest allowing duplicates
+- upload throwing an error when the old picture doesn't exist
 
 
 ## [0.9] - 2019-10-29

src/lib/dataAccess.ts

@@ -67,12 +67,12 @@ namespace dataaccess {
                 models.Media,
                 models.Report,
                 models.ReportReason,
+                models.Level,
             ]);
         } catch (err) {
             globals.logger.error(err.message);
             globals.logger.debug(err.stack);
         }
-        await databaseCleanup();
         setInterval(databaseCleanup, config.get<number>("database.cleanupInterval") * 1000);
     }
 

src/lib/models/Level.ts

@@ -0,0 +1,33 @@
+import * as sqz from "sequelize";
+import {Column, Model, NotNull, Table, Unique} from "sequelize-typescript";
+
+/**
+ * A level of the ranking system
+ */
+@Table({underscored: true})
+export class Level extends Model<Level> {
+
+    /**
+     * The name of the level
+     */
+    @NotNull
+    @Unique
+    @Column({allowNull: false, type: sqz.STRING(64), unique: true})
+    public name: string;
+
+    /**
+     * The number of the level
+     */
+    @NotNull
+    @Unique
+    @Column({allowNull: false, unique: true})
+    public levelNumber: number;
+
+    /**
+     * The required points for the level
+     */
+    @NotNull
+    @Unique
+    @Column({allowNull: false, unique: true})
+    public points: number;
+}

src/lib/models/Media.ts

@@ -18,7 +18,9 @@ export class Media extends Model<Media> {
      */
     @BeforeDestroy
     public static async deleteMediaFile(instance: Media) {
-        await fsx.unlink(instance.path);
+        if (await fsx.pathExists(instance.path)) {
+            await fsx.unlink(instance.path);
+        }
     }
 
     /**

src/lib/models/User.ts

@@ -1,5 +1,6 @@
 import * as sqz from "sequelize";
 import {
+    BeforeUpdate,
     BelongsTo,
     BelongsToMany,
     Column,
@@ -24,6 +25,7 @@ import {Friendship} from "./Friendship";
 import {Group} from "./Group";
 import {GroupAdmin} from "./GroupAdmin";
 import {GroupMember} from "./GroupMember";
+import {Level} from "./Level";
 import {Media} from "./Media";
 import {Post} from "./Post";
 import {PostVote} from "./PostVote";
@@ -35,6 +37,19 @@ import {Request, RequestType} from "./Request";
 @Table({underscored: true})
 export class User extends Model<User> {
 
+    /**
+     * A function that is called before the user is updated.
+     * It assigns the corresponding level to the user
+     * @param instance
+     */
+    @BeforeUpdate
+    public static async assignLevel(instance: User) {
+        const level = await Level.findOne({where: {points: {[sqz.Op.lte]: instance.rankpoints}}, order: [["levelNumber", "desc"]]}) as Level;
+        if (level) {
+            instance.$set("rLevel", level);
+        }
+    }
+
     /**
      * The name of the user
      */
@@ -99,6 +114,13 @@ export class User extends Model<User> {
     @Column({defaultValue: false, allowNull: false})
     public isAdmin: boolean;
 
+    /**
+     * The level of the user
+     */
+    @ForeignKey(() => Level)
+    @Column({allowNull: true})
+    public levelId: number;
+
     /**
      * The id of the media that is the users profile picture
      */
@@ -106,6 +128,12 @@ export class User extends Model<User> {
     @Column({allowNull: true})
     public mediaId: number;
 
+    /**
+     * The level of the user
+     */
+    @BelongsTo(() => Level)
+    public rLevel: Level;
+
     /**
      * The media of the user
      */
@@ -220,8 +248,8 @@ export class User extends Model<User> {
     /**
      * The level of the user which is the points divided by 100
      */
-    public get level(): number {
+    public async level(): Promise<Level> {
-        return Math.ceil(this.getDataValue("rankpoints") / 100);
+        return await this.$get("rLevel") as Level;
     }
 
     /**

src/lib/models/index.ts

@@ -16,3 +16,4 @@ export {BlacklistedPhrase} from "./BlacklistedPhrase";
 export {Media} from "./Media";
 export {Report} from "./Report";
 export {ReportReason} from "./ReportReason";
+export {Level} from "./Level";

src/routes/graphql/schema.graphql

@@ -189,7 +189,7 @@ interface UserData {
     points: Int!
 
     "the levels of the user depending on the points"
-    level: Int!
+    level: Level
 }
 
 "represents a single user account"
@@ -240,7 +240,7 @@ type User implements UserData{
     eventCount: Int!
 
     "the levels of the user depending on the points"
-    level: Int!
+    level: Level
 }
 
 type Profile implements UserData {
@@ -311,7 +311,7 @@ type Profile implements UserData {
     points: Int!
 
     "the levels of the user depending on the points"
-    level: Int!
+    level: Level
 
     "the custom settings for the frontend"
     settings: String!
@@ -571,6 +571,16 @@ type ReportReason {
     description: String!
 }
 
+"A level of a user"
+type Level {
+
+    "The name of the level"
+    name: String!
+
+    "The number of the level in the ranking"
+    levelNumber: String!
+}
+
 "represents the type of media"
 enum MediaType {
     VIDEO