Model-loader NPM

model loader using sequelize & squel.

Installation

npm install koa-orm

Example

Single database

const path = require('path')
const config = {
  modelPath: path.resolve(__dirname, 'models'),
  migrationPath: path.resolve(__dirname, 'database/migrations'),
  db: 'db_test',
  username: 'postgres',
  options: {
    dialect: 'postgres',
    logging: true,
  },
  password: 'pass',
  host: '127.0.0.1',
  port: 5432,
}

app.context.db = await require('model-loader')(config)

app.use('SomeService', 'someList', async function(ctx) {
  const result = await ctx
    .db
    .sql.select()
    .from('table')
    .query()
  ctx.res = result
})

Multiple database

const join = require('path').join
const configs = [
  {
    modelPath: path.resolve(__dirname, 'model/cohorts'),
    migrationPath: path.resolve(__dirname, 'database/migrations/cohort'),
    db: 'cohort',
    username: 'postgres',
    options: {
      dialect: 'postgres',
      logging: true,
    },
    password: 'pass',
    host: '127.0.0.1',
    port: 5432,
  }
  {
    modelPath: path.resolve(__dirname, 'models/location'),
    migrationPath: path.resolve(__dirname, 'database/migrations/location'),
    db: 'location',
    username: 'postgres',
    options: {
      dialect: 'postgres',
      logging: true,
    },
    password: 'pass',
    host: '127.0.0.1',
    port: 5432,
  }
]

app.context.db = await require('model-loader')(config)

app.use('SomeService', 'someList', async function(ctx) {
  const Cohort = ctx.db.cohort.Cohort
  const Location = ctx.db.location.Location
  const payload = ctx.request.req
  const cohort = new Cohort(payload)
  await cohort.save()
  // cohort.location = ctx.db.location.sql.select().from('locations').where('id = ?', cohort.locationId).query()
  cohort.location = await Location.findById(cohort.locationId)
  ctx.res = cohort
})