Readlebee/server/sequelize/generate-db-diagram.js

59 lines
1.9 KiB
JavaScript

// Run with `node ./path/to/server/sequelize/generate-db-diagram.js`
(async function(){
const path = require('path');
const {writeFileSync} = require('fs');
const Sequelize = require('sequelize');
const sequelizeErd = require('sequelize-erd');
let siteConfig;
try {
siteConfig = require('../config.json');
} catch (ex) {
console.error('Please copy `config.example.json` to `config.json` and fill it with your server\'s data.');
process.exit(1);
}
const sequelizeConfig = {
dialect: siteConfig.db_engine,
};
switch (siteConfig.db_engine) {
case 'sqlite': {
sequelizeConfig.storage = typeof siteConfig.sqlite_location !== 'undefined'
? (
siteConfig.sqlite_location.substr(0, 1) === '.' // If relative path, make relative to ./server
? path.resolve('../server/', siteConfig.sqlite_location)
: path.resolve(siteConfig.sqlite_location)
)
: path.resolve(__dirname, '../server/database.sqlite');
break;
}
default: {
sequelizeConfig.host = siteConfig.db_host;
sequelizeConfig.port = siteConfig.db_port;
sequelizeConfig.database = siteConfig.db_database;
sequelizeConfig.username = siteConfig.db_username;
sequelizeConfig.password = siteConfig.db_password;
}
}
const sequelize = new Sequelize(sequelizeConfig);
require('./models')(sequelize);
try {
const svg = await sequelizeErd({
source: sequelize,
engine: 'dot',
arrowShapes: {
BelongsToMany: ['crow', 'crow'],
BelongsTo: ['crow', 'dot'],
HasMany: ['normal', 'crow'],
HasOne: ['dot', 'dot'],
},
arrowSize: 1,
lineWidth: 1,
});
writeFileSync(path.resolve(__dirname, './db-diagram.svg'), svg);
} catch (err) { console.error(err) }
// Writes erd.svg to local path with SVG file from your Sequelize models
})()