Fixed bug in RethinkDB document store and use classes

const crypto = require('crypto');

const rethink = require('rethinkdbdash');

const winston = require('winston');

var RethinkDBStore = (options) => {

class RethinkDBStore {

  constructor(options) {

    this.client = rethink({

      silent: true,

      host: options.host || '127.0.0.1',

      user: options.user || 'admin',

      password: options.password || ''

    });

};

RethinkDBStore.md5 = (str) => {

  const md5sum = crypto.createHash('md5');

  md5sum.update(str);

  return md5sum.digest('hex');

};

  }

RethinkDBStore.prototype.set = (key, data, callback) => {

  try {

    this.client.table('uploads').insert({ id: RethinkDBStore.md5(key), data: data }).run((error) => {

      if (error) return callback(false);

  set(key, data, callback) {

    this.client.table('pastes').insert({ id: RethinkDBStore.md5(key), data: data }).run((error) => {

      if (error) {

        callback(false);

        winston.error('failed to insert to table', error);

        return;

      }

      callback(true);

    });

  } catch (err) {

    callback(false);

  }

};

RethinkDBStore.prototype.get = (key, callback) => {

  this.client.table('uploads').get(RethinkDBStore.md5(key)).run((error, result) => {

    if (error || !result) return callback(false);

  get(key, callback) {

    this.client.table('pastes').get(RethinkDBStore.md5(key)).run((error, result) => {

      if (error || !result) {

        callback(false);

        winston.error('failed to insert to table', error);

        return;

      }

      callback(result.data);

    });

};

  }

}

module.exports = RethinkDBStore;

module.exports.md5 = (str) => {

  const md5sum = crypto.createHash('md5');

  md5sum.update(str);

  return md5sum.digest('hex');

};

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