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let Sequelize = require('sequelize');
let db = syzoj.db;
const User = syzoj.model('user');
const Contest = syzoj.model('contest');
let model = db.define('rating_calculation', {
id: { type: Sequelize.INTEGER, primaryKey: true, autoIncrement: true },
contest_id: { type: Sequelize.INTEGER }
}, {
timestamps: false,
tableName: 'rating_calculation',
indexes: [
{
fields: ['contest_id']
},
]
});
let Model = require('./common');
class RatingCalculation extends Model {
static async create(contest_id) {
return RatingCalculation.fromRecord(RatingCalculation.model.create({ contest_id: contest_id }));
}
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async loadRelationships() {
this.contest = await Contest.fromID(this.contest_id);
}
getModel() { return model; }
async delete() {
const RatingHistory = syzoj.model('rating_history');
const histories = await RatingHistory.query(null, {
rating_calculation_id: this.id
});
for (const history of histories) {
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await history.loadRelationships();
const user = history.user;
await history.destroy();
const ratingItem = (await RatingHistory.findOne({
where: { user_id: user.id },
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order: [['rating_calculation_id','DESC']]
}));
user.rating = ratingItem ? ratingItem.rating_after : syzoj.config.default.user.rating;
await user.save();
}
await this.destroy();
}
}
RatingCalculation.model = model;
module.exports = RatingCalculation;