79 lines
2.3 KiB
JavaScript
79 lines
2.3 KiB
JavaScript
const Sequelize = require('sequelize');
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const logger = require('winston');
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module.exports = (mysqlConfig) => {
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const { database, username, password } = mysqlConfig;
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const db = {};
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// set sequelize options
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const sequelize = new Sequelize(database, username, password, {
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host : 'localhost',
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dialect : 'mysql',
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dialectOptions: {decimalNumbers: true}, // fix to ensure DECIMAL will not be stored as a string
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logging : false,
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pool : {
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max : 5,
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min : 0,
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idle : 10000,
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acquire: 10000,
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},
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});
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// establish mysql connection
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sequelize
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.authenticate()
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.then(() => {
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logger.info('Sequelize has established mysql connection successfully.');
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})
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.catch(err => {
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logger.error('Sequelize was unable to connect to the database:', err);
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});
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// manually add each model to the db object
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const Certificate = require('./certificate.js');
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const Channel = require('./channel.js');
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const Claim = require('./claim.js');
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const File = require('./file.js');
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const Request = require('./request.js');
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const User = require('./user.js');
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db['Certificate'] = sequelize.import('Certificate', Certificate);
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db['Channel'] = sequelize.import('Channel', Channel);
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db['Claim'] = sequelize.import('Claim', Claim);
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db['File'] = sequelize.import('File', File);
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db['Request'] = sequelize.import('Request', Request);
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db['User'] = sequelize.import('User', User);
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// run model.association for each model in the db object that has an association
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Object.keys(db).forEach(modelName => {
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if (db[modelName].associate) {
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logger.info('Associating model:', modelName);
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db[modelName].associate(db);
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}
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});
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db.sequelize = sequelize;
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db.Sequelize = Sequelize;
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// add an 'upsert' method to the db object
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db.upsert = (Model, values, condition, tableName) => {
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return Model
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.findOne({
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where: condition,
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})
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.then(obj => {
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if (obj) { // update
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logger.debug(`updating record in db.${tableName}`);
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return obj.update(values);
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} else { // insert
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logger.debug(`creating record in db.${tableName}`);
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return Model.create(values);
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}
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})
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.catch(function (error) {
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logger.error(`${tableName}.upsert error`, error);
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throw error;
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});
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};
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return db;
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};
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