Upgrade Sequelize from v3 to v4

app.js

@@ -88,11 +88,50 @@ global.syzoj = {
   },
   async connectDatabase() {
     let Sequelize = require('sequelize');
+    let Op = Sequelize.Op;
+    let operatorsAliases = {
+      $eq: Op.eq,
+      $ne: Op.ne,
+      $gte: Op.gte,
+      $gt: Op.gt,
+      $lte: Op.lte,
+      $lt: Op.lt,
+      $not: Op.not,
+      $in: Op.in,
+      $notIn: Op.notIn,
+      $is: Op.is,
+      $like: Op.like,
+      $notLike: Op.notLike,
+      $iLike: Op.iLike,
+      $notILike: Op.notILike,
+      $regexp: Op.regexp,
+      $notRegexp: Op.notRegexp,
+      $iRegexp: Op.iRegexp,
+      $notIRegexp: Op.notIRegexp,
+      $between: Op.between,
+      $notBetween: Op.notBetween,
+      $overlap: Op.overlap,
+      $contains: Op.contains,
+      $contained: Op.contained,
+      $adjacent: Op.adjacent,
+      $strictLeft: Op.strictLeft,
+      $strictRight: Op.strictRight,
+      $noExtendRight: Op.noExtendRight,
+      $noExtendLeft: Op.noExtendLeft,
+      $and: Op.and,
+      $or: Op.or,
+      $any: Op.any,
+      $all: Op.all,
+      $values: Op.values,
+      $col: Op.col
+    };
+
     this.db = new Sequelize(this.config.db.database, this.config.db.username, this.config.db.password, {
       host: this.config.db.host,
       dialect: this.config.db.dialect,
       storage: this.config.db.storage ? this.utils.resolvePath(this.config.db.storage) : null,
-      logging: syzoj.production ? false : syzoj.log
+      logging: syzoj.production ? false : syzoj.log,
+      operatorsAliases: operatorsAliases
     });
     global.Promise = Sequelize.Promise;
     this.db.countQuery = async (sql, options) => (await this.db.query(`SELECT COUNT(*) FROM (${sql}) AS \`__tmp_table\``, options))[0][0]['COUNT(*)'];

models/common.js

@@ -19,6 +19,8 @@
 
 'use strict';
 
+let Sequelize = require('sequelize');
+
 class Model {
   constructor(record) {
     this.record = record;
@@ -29,9 +31,9 @@ class Model {
     let model = this.getModel();
     let obj = JSON.parse(JSON.stringify(this.record.get({ plain: true })));
     for (let key in obj) {
-      if (model.tableAttributes[key].json) {
+      if (model.tableAttributes[key].type instanceof Sequelize.JSON) {
         try {
-          this[key] = eval(`(${obj[key]})`);
+          this[key] = JSON.parse(obj[key]);
         } catch (e) {
           this[key] = {};
         }
@@ -43,8 +45,7 @@ class Model {
     let model = this.getModel();
     let obj = JSON.parse(JSON.stringify(this.record.get({ plain: true })));
     for (let key in obj) {
-      if (model.tableAttributes[key].json) obj[key] = JSON.stringify(this[key]);
-      else obj[key] = this[key];
+      obj[key] = this[key];
     }
     return obj;
   }
@@ -76,7 +77,7 @@ class Model {
   }
 
   static async fromID(id) {
-    return this.fromRecord(this.model.findById(id))
+    return this.fromRecord(this.model.findByPk(id));
   }
 
   static async findOne(options) {

models/contest_player.js

@@ -31,7 +31,7 @@ let model = db.define('contest_player', {
   user_id: { type: Sequelize.INTEGER },
 
   score: { type: Sequelize.INTEGER },
-  score_details: { type: Sequelize.TEXT, json: true },
+  score_details: { type: Sequelize.JSON },
   time_spent: { type: Sequelize.INTEGER }
 }, {
     timestamps: false,
@@ -53,7 +53,7 @@ class ContestPlayer extends Model {
       contest_id: 0,
       user_id: 0,
       score: 0,
-      score_details: '{}',
+      score_details: {},
       time_spent: 0
     }, val)));
   }

models/contest_ranklist.js

@@ -28,8 +28,8 @@ let ContestPlayer = syzoj.model('contest_player');
 
 let model = db.define('contest_ranklist', {
   id: { type: Sequelize.INTEGER, primaryKey: true, autoIncrement: true },
-  ranking_params: { type: Sequelize.TEXT, json: true },
-  ranklist: { type: Sequelize.TEXT, json: true }
+  ranking_params: { type: Sequelize.JSON },
+  ranklist: { type: Sequelize.JSON }
 }, {
   timestamps: false,
   tableName: 'contest_ranklist'
@@ -39,8 +39,8 @@ let Model = require('./common');
 class ContestRanklist extends Model {
   static async create(val) {
     return ContestRanklist.fromRecord(ContestRanklist.model.build(Object.assign({
-      ranking_params: '{}',
-      ranklist: '{}'
+      ranking_params: {},
+      ranklist: {}
     }, val)));
   }
 

models/custom_test.js

@@ -38,7 +38,7 @@ let model = db.define('custom_test', {
   pending: { type: Sequelize.BOOLEAN },
   memory: { type: Sequelize.INTEGER },
 
-  result: { type: Sequelize.TEXT('medium'), json: true },
+  result: { type: Sequelize.JSON },
 
   user_id: { type: Sequelize.INTEGER },
 
@@ -76,6 +76,7 @@ class CustomTest extends Model {
 
       time: 0,
       memory: 0,
+      result: {},
       status: 'Waiting',
     }, val)));
   }

models/judge_state.js

@@ -45,9 +45,9 @@ let model = db.define('judge_state', {
   max_memory: { type: Sequelize.INTEGER },
 
   // For NOI contest
-  compilation: { type: Sequelize.TEXT('medium'), json: true },
+  compilation: { type: Sequelize.JSON },
 
-  result: { type: Sequelize.TEXT('medium'), json: true },
+  result: { type: Sequelize.JSON },
 
   user_id: { type: Sequelize.INTEGER },
 
@@ -107,7 +107,8 @@ class JudgeState extends Model {
       total_time: null,
       max_memory: null,
       status: 'Unknown',
-      result: null,
+      compilation: {},
+      result: {},
       task_id: randomstring.generate(10),
       is_public: false
     }, val)));

package.json

@@ -46,7 +46,7 @@
     "moment": "^2.15.0",
     "msgpack-lite": "^0.1.26",
     "multer": "^1.2.0",
-    "mysql": "^2.11.1",
+    "mysql2": "^1.6.2",
     "node-7z": "^0.4.0",
     "nodemailer": "^4.1.0",
     "pygmentize-bundled-cached": "^1.1.0",
@@ -54,7 +54,7 @@
     "request": "^2.74.0",
     "request-promise": "^4.1.1",
     "sendmail": "^1.1.1",
-    "sequelize": "^3.24.3",
+    "sequelize": "^4.41.0",
     "session-file-store": "^1.0.0",
     "socket.io": "^2.0.3",
     "sqlite3": "^3.1.4",