authorsy / utils / validator.php

validator.php in Authorsy – Author Box, Multiple Authors, Guest Authors & Post Rating trunk, at utils/validator.php

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1	<?php
2	/**
3	* Validator Traits
4	*
5	* @package Authorsy
6	*/
7	namespace Authorsy\Utils;
8	defined( 'ABSPATH' ) \|\| exit;
9
10	use WP_Error;
11
12	/**
13	* Validator trait
14	*/
15	trait Validator {
16	/**
17	* Store WP_Error Object
18	*
19	* @var WP_Error
20	*/
21	private $error;
22
23	/**
24	* Validation rules
25	*
26	* @var array
27	*/
28	private $rules = ['required', 'min', 'max', 'email'];
29
30	/**
31	* Validation error messages
32	*
33	* @var array
34	*/
35	private $messages = [
36	'required' => ':field is required',
37	'min' => ':field is minimum of :satisfier',
38	'max' => ':field is maximum of :satisfier',
39	'email' => 'This is email is invalid',
40	];
41
42	/**
43	* Validate fields
44	*
45	* @param array $rules The rules that will be compared with field value
46	* @param array $fields Input fields
47	*
48	* @return bool \| WP_Error
49	*/
50	public function validate( $rules, $fields ) {
51	$this->error = new WP_Error();
52
53	foreach ( $fields as $field => $value ) {
54	if ( array_key_exists( $field, $rules ) ) {
55	$this->check( [
56	'field' => $field,
57	'value' => $value,
58	'rules' => $rules[$field],
59	] );
60	}
61	}
62
63	if ( $this->error->has_errors() ) {
64	return $this->error;
65	}
66
67	return true;
68	}
69
70	/**
71	* Check the rules with field value
72	*
73	* @param array $item
74	*
75	* @return void
76	*/
77	private function check( $item ) {
78	$field = $item['field'];
79	$value = $item['value'];
80	$rules = $item['rules'];
81
82	foreach ( $rules as $rule => $satisfier ) {
83	if ( ! in_array( $rule, $this->rules ) ) {
84	continue;
85	}
86
87	if ( ! call_user_func_array( [$this, $rule], [$field, $value, $satisfier] ) ) {
88	$code = $item['field'] . '_' . $rule;
89	$message = str_replace( [':field', ':satisfier'], [$field, $satisfier], $this->messages[$rule] );
90
91	$this->error->add( $code, $message );
92	}
93	}
94	}
95
96	/**
97	* Required validation
98	*
99	* @return bool
100	*/
101	private function required( $field, $value, $satisfier ) {
102	return ! empty( $value );
103	}
104
105	/**
106	* Minimum length validation
107	*
108	* @return bool
109	*/
110	private function min( $field, $value, $satisfier ) {
111	return mb_strlen( $value ) >= $satisfier;
112	}
113
114	/**
115	* Maximum length validation
116	*
117	* @return bool
118	*/
119	private function max( $field, $value, $satisfier ) {
120	return mb_strlen( $value ) <= $satisfier;
121	}
122
123	/**
124	* Email validation
125	*
126	* @return bool
127	*/
128	private function email( $field, $value, $satisfier ) {
129	return filter_var( $value, FILTER_VALIDATE_EMAIL );
130	}
131
132	}
133