Loopback SoftDelete Mixin

This module is designed for the Strongloop Loopback framework. It allows entities of any Model to be "soft deleted" by adding deletedAt and _isDeleted attributes. Queries following the standard format will no return these entities; they can only be accessed by adding { deleted: true } to the query object (at the same level as where, include etc).

To implement copy this file to mixins folder or clone this private repository (requires adding the package folder path to mixins inside model-config json file), and add "SoftDelete": true in mixins on YourModel.json file.

To delete a row or data, don't use destroyAll etc., use YourModel.delete

To find data that is considered deleted, add includeDeleted: true in where filter

Original author: Saggaf Arsyad

Node version used for development: v10.13.0

Contributing

💥 In case you are making a commit for this package repository, MAKE SURE TO READ AND UNDERSTAND THE FOLLOWING TOPICS:

1. Every commit that runs on the master branch runs through the Publish Github Package Workflow on Github Actions. So be sure to check if your code is well written and tested, since it'll be published if the code passes the Continuous Integration (CI) unit tests.

2. If the commit passes through the Github Actions workflow, the module will be released as a package in the Github Packages Registry. This workflow has an underlying command that increments/bumps the version from the latest release based on commit messages, such as:

If the string "BREAKING CHANGE" or "major" is found anywhere in any of the commit messages or descriptions, the major version will be incremented (i.e. 1.X.X).
If a commit message begins with the string "feat" or includes "minor" then the minor version will be increased (i.e. X.1.X). This works for most common commit metadata for feature additions: "feat: new API" and "feature: new API".
All other changes will increment the patch version (i.e. X.X.1).

3. Furthermore, the workflow has also an underlying command that deploys automatically a new release when a success test/deployment takes places. These releases can be found here.

Installation

In your application root directory, enter this command to install the connector:

$ npm install @letsfullstack/loopback-soft-delete-mixin

Configure

To use with your Models add the mixins attribute to the definition object of your model config.

  {
    "name": "Widget",
    "properties": {
      "name": {
        "type": "string",
      },
    },
    "mixins": {
      "SoftDelete" : true,
    },
  },

There are a number of configurable options to the mixin. You can specify alternative property names for deletedAt and _isDeleted, as well as configuring deletion to "scrub" the entity. If true, this sets all but the "id" fields to null. If an array, it will only scrub properties with those names.

  "mixins": {
    "SoftDelete": {
      "deletedAt": "deletedOn",
      "_isDeleted": "isDeleted",
      "scrub": true,
    },
  },

Retrieving deleted entities

To run queries that include deleted items in the response, add { deleted: true } to the query object (at the same level as where, include etc).

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