WarpJS ChangeLogs

This package allows to add change logs to a WarpJS document.

Setup

npm install --save @warp-works/warpjs-change-logs

Usage

const ChangeLogs = require('@warp-works/warpjs-change-logs');

// get the instance
ChangeLogs.add(action, user, instance, data)
// save instance

const resource = ChangeLogs.toFormResource(instance, domain, persistence, routeName, userEntity);

API

.ACTIONS

Object containing list of available actions. Also see issue #1.

.Error

Error thrown if any issue.

.add(action, user, instance, data)

Adds a new change log. This will modify instance in-place and will return instance so it will be easy to chain operations if desired.

Promise.resolve()
  .then(() => somethingToGetInstance(persistence))
  .then((instance) => ChangeLogs.add(
    ChangeLogs.ACTIONS.UPDATE_VALUE, // action
    { id: 1, type: 'User', Name: 'John Doe', UserName: 'jdoe' }, // user
    instance,
    { key: 'Basic:Name', oldValue: 'Jhon Doe', newValue: 'John Doe' } // data
  ))
  .then((instance) => somethingToSave(persistence, instance))
  ...

Parameters:

• action: For available actions, see ACTIONS. But also consider issue #1.
• user: Object representation of the user. It should have the form of { id, type, Name, UserName }.
• instance: Document instance.
• data: Object to be saved in the change logs. It usually has the form of { key, label, type, id }, but refer to individual action to see what it expects.

.toFormResource(domain, persistence, routeName, userEntity)

Builds an array of change logs resources. This can then be embedded into an HAL resource.

const resource = ...hal...;
Promise.resolve()
  .then(() => ChangeLogs.toFormResource('a', persistence, 'my:route', userEntity))
  .then((changeLogs) => resource.embed('changeLogs', changeLogs))
;

Parameters:

• domain: Domain name.
• persistence: Persistence instance.
• routeName: Name of the route to use from RoutesInfo. It will pass in {domain, type, id}. type and id are taken from the data that was passed in when used .add() above.
• userEntity: The User entity that will be used to retrieve the display picture.