PCData

maintained by PandaClouds.com

PCData provides a clean way to validate data in Parse Sever Cloud Code.

Installation

1. If you want to use this library, you first need to install the Node.js.

2. When you install node.js, will also be installed npm.

3. Please run the following command.

npm install --save @panda-clouds/parse-data

Usage

Node.js

const PCData = require('@panda-clouds/parse-data');

// example usage
Parse.Cloud.beforeSave('Book', request =>{
	const data = new PCData(request);

	// will throw Error if request.object.get('title') doesn't exist
	data.prop('title').mustExist();

	// Chain requirements together
	data.prop('author').mustExist().mustNotChange();
});

You can replace PCData with any variable.

Methods

Unit Tests are an additional resource for learning functionality.

- mustExist()

requires the property to be set, else throws error

Example:

Parse.Cloud.beforeSave('Book', request =>{
	const data = new PCData(request);
	data.prop('title').mustExist();    // will throw Error if request.object.get('title') doesn't exist
});

- mustNotChange()

requires the property to be the same as the first time ACUTUALLY SETTING IT, else throws error

Note: undefined => value will NOT throw an error Consider the following

1. the object is saved WITHOUT setting the property.
2. the object is saved again WITH setting the property.
3. this will pass

Example:

Parse.Cloud.beforeSave('Book', request =>{
	const data = new PCData(request);
	data.prop('title').mustNotChange();    // will throw Error if request.object.get('title') is not equal to request.original.get('title')
});

- mustBeBefore(propName)

Requires that the property be before the property specified by propName.

Note: only supported in Parse v3.

Example:

Parse.Cloud.beforeSave('TimePeriod', request => {
	const data = new PCData(request);

	data.prop('start').mustBeBefore('end');	// will throw Error if start or end are not Date objects or if start is not before end.
});

Contributions

Pull requests are welcome! here is a checklist to speed things up:

• modify PCData.js
• add unit tests in PCData.spec.js
• run npm test
• document method in README.md
• add your name to 'Contributors' in README.md

Contributors

(Add your name)

• [*] Marc Smith
• [*] Scott Runyon