Loki CFR - Custom Field Repository

a custom Field repository that transforms Wordpress custom fields into an Object Relational Mapper (ORM).

Technically, Loki provides an easy-to-use interface for generating, populating and reading custom fields based on custom PHP objects.

Once you have created an object with some special property annotations, the plugin will do the rest.

Getting Started

Prerequisites

PHP 5.6+

Installation of Advanced Custom Fields Pro Plugin is recommended, but not neccessary

Installing

Install plugin like any other Wordpress plugin

How to use it

The plugin maps objects with specific annotations to a set of custom fields. Configuration is done via annotation

<?php

/**
 * @Field_Group(name="sales", title="Annual sales reports", provider="acf")
 */
class Sales_Report {

	/**
	 * @var string
	 * @Field(name="report", type="text")
	 */
	private $report;

	/**
	 * We need a valid getter for lazy loading
	 * @return string
	 */
	public function get_report() {
		return $this->report;
	}

	/**
	 * We need a valid setter for saving data
	 * @param $report
	 */
	public function set_report( $report ) {
		$this->report = $report;
	}
}

Field group options

Property	Values	Default
name	any	none, mandatory value
title	any	none, optional
provider	native, acf	native

Field options

Property	Values	Default
name	any	none, mandatory value
label	any	none, optional
type	text, true_false	text
default	any	text

Custom field provider

Loki CFR comes with support for two different custom field provider

Advanced Custom Fields Pro (recommended, but requires installed ACF Pro plugin)

@Field_Group(name="sales", title="Annual sales reports", provider="acf")

Wordpress native (default, no further plugin required)

@Field_Group(name="sales", title="Annual sales reports", provider="native")

Registering annotated classes

After generating an annotated class we register the class(es) and let the plugin do all the work (generating fields, fieldgroups etc)

include_once get_stylesheet_directory() . '/models/Sales_Report.php';

add_action( 'init', 'register' );
function register() {
	$repository = register_custom_field_repository([Sales_Report::class]);
}

Writing

add_action( 'init', 'write' );
function write() {
	$repository = get_custom_field_repository();

	$user = $repository->find(Sales_Report::class, $post_id);

	$user->set_report('Some Report');

	$repository->persist($user);
}

Reading (Lazy loaded)

Data is fetched with lazy loading by using the getter methods

add_action( 'init', 'read' );
function read() {
	$repository = get_custom_field_repository();

	$user = $repository->find(Sales_Report:class, $post_id);

	print $user->get_report();

}

Authors

• Daniel Steiner - Initial work - dsteiner23

License

This project is licensed under the GNU GENERAL PUBLIC LICENSE - see the LICENSE.md file for details