Be careful how you update and delete with Sequelize

postmortem.coffee

require('dotenv').load()
db = require './server/lib/db'
addressRepo = require './server/repositories/addressRepository'
db.sequelize.sync().complete (err) ->
  throw err if err

  addressRepo.findAll {}, (err, addresses) ->
    throw err if err

    console.log addresses.length + ' addresses to begin with'

    # dangerous update all without search criteria
    addressRepo.update { city: 'A' }, {}, (err) ->
      throw err if err
      addressRepo.findAll {}, (err, addresses) ->
        throw err if err
        for a in addresses when a.city isnt 'A'
          throw new Error 'did not update all'

        # dangerous update with undefined
        addressRepo.update { city: 'B' }, undefined, (err) ->
          throw err if err
          addressRepo.findAll {}, (err, addresses) ->
            throw err if err
            for a in addresses when a.city isnt 'B'
              throw new Error 'did not update all'

            # dangerous update with null
            addressRepo.update { city: 'C' }, null, (err) ->
              throw err if err
              addressRepo.findAll {}, (err, addresses) ->
                throw err if err
                for a in addresses when a.city isnt 'C'
                  throw new Error 'did not update all'

                addressRepo.destroy {}, (err) ->
                  throw err if err
                  addressRepo.findAll {}, (err, addresses) ->
                    throw err if err

                    console.log addresses.length + ' addresses to end with'