Passed
Pull Request — master (#219)
by
unknown
02:29
created

CompareTo::__construct()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 37
Code Lines 3

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 4
CRAP Score 1

Importance

Changes 0
Metric Value
cc 1
eloc 3
nc 1
nop 8
dl 0
loc 37
ccs 4
cts 4
cp 1
crap 1
rs 10
c 0
b 0
f 0

How to fix   Many Parameters   

Many Parameters

Methods with many parameters are not only hard to understand, but their parameters also often become inconsistent when you need more, or different data.

There are several approaches to avoid long parameter lists:

1
<?php
2
3
declare(strict_types=1);
4
5
namespace Yiisoft\Validator\Rule;
6
7
use Attribute;
8
use InvalidArgumentException;
9
use RuntimeException;
10
use Yiisoft\Validator\FormatterInterface;
11
use Yiisoft\Validator\Result;
12
use Yiisoft\Validator\Rule;
13
use Yiisoft\Validator\ValidationContext;
14
15
/**
16
 * Compares the specified value with another value.
17
 *
18
 * The value being compared with a constant {@see CompareTo::$compareValue}, which is set
19
 * in the constructor.
20
 *
21
 * It supports different comparison operators, specified
22
 * via the {@see CompareTo::$operator}.
23
 *
24
 * The default comparison function is based on string values, which means the values
25
 * are compared byte by byte. When comparing numbers, make sure to change {@see CompareTo::$type} to
26
 * {@see CompareTo::TYPE_NUMBER} to enable numeric comparison.
27
 */
28
#[Attribute(Attribute::TARGET_PROPERTY)]
29
final class CompareTo extends Rule
30
{
31
    /**
32
     * Constant for specifying the comparison as string values.
33
     * No conversion will be done before comparison.
34
     *
35
     * @see $type
36
     */
37
    public const TYPE_STRING = 'string';
38
    /**
39
     * Constant for specifying the comparison as numeric values.
40
     * String values will be converted into numbers before comparison.
41
     *
42
     * @see $type
43
     */
44
    public const TYPE_NUMBER = 'number';
45
    private array $validOperators = [
46
        '==' => 1,
47
        '===' => 1,
48
        '!=' => 1,
49
        '!==' => 1,
50
        '>' => 1,
51
        '>=' => 1,
52
        '<' => 1,
53
        '<=' => 1,
54
    ];
55
56 37
    public function __construct(
57
        /**
58
         * @var mixed the constant value to be compared with.
59
         */
60
        private mixed $compareValue,
61
        /**
62
         * @var string|null user-defined error message
63
         */
64
        private ?string $message = null,
65
        /**
66
         * @var string the type of the values being compared.
67
         */
68
        private string $type = self::TYPE_STRING,
69
        /**
70
         * @var string the operator for comparison. The following operators are supported:
71
         *
72
         * - `==`: check if two values are equal. The comparison is done is non-strict mode.
73
         * - `===`: check if two values are equal. The comparison is done is strict mode.
74
         * - `!=`: check if two values are NOT equal. The comparison is done is non-strict mode.
75
         * - `!==`: check if two values are NOT equal. The comparison is done is strict mode.
76
         * - `>`: check if value being validated is greater than the value being compared with.
77
         * - `>=`: check if value being validated is greater than or equal to the value being compared with.
78
         * - `<`: check if value being validated is less than the value being compared with.
79
         * - `<=`: check if value being validated is less than or equal to the value being compared with.
80
         *
81
         * When you want to compare numbers, make sure to also chabge @see CompareTo::$type} to
82
         * {@see CompareTo::TYPE_NUMBER}.
83
         */
84
        private string $operator = '==',
85
        ?FormatterInterface $formatter = null,
86
        bool $skipOnEmpty = false,
87
        bool $skipOnError = false,
88
        $when = null
89
    ) {
90 37
        parent::__construct(formatter: $formatter, skipOnEmpty: $skipOnEmpty, skipOnError: $skipOnError, when: $when);
91 37
        $this->checkOperator($operator);
92 36
        $this->checkType($this->type);
93
    }
94
95 37
    private function checkOperator($value): void
96
    {
97 37
        if (!isset($this->validOperators[$value])) {
98 2
            throw new InvalidArgumentException("Operator \"$value\" is not supported.");
99
        }
100
    }
101
102 36
    private function checkType($value): void
103
    {
104 36
        if ($value !== self::TYPE_NUMBER && $value !== self::TYPE_STRING) {
105 1
            throw new InvalidArgumentException("Type \"$value\" is not supported.");
106
        }
107
    }
108
109
    /**
110
     * @see $compareValue
111
     */
112 1
    public function compareValue(mixed $value): self
113
    {
114 1
        $new = clone $this;
115 1
        $new->compareValue = $value;
116
117 1
        return $new;
118
    }
119
120
    /**
121
     * @see $type
122
     */
123 1
    public function asString(): self
124
    {
125 1
        $new = clone $this;
126 1
        $new->type = self::TYPE_STRING;
127
128 1
        return $new;
129
    }
130
131
    /**
132
     * @see $type
133
     */
134 1
    public function asNumber(): self
135
    {
136 1
        $new = clone $this;
137 1
        $new->type = self::TYPE_NUMBER;
138
139 1
        return $new;
140
    }
141
142
    /**
143
     * @see $operator
144
     */
145 2
    public function operator(string $value): self
146
    {
147 2
        $this->checkOperator($value);
148
149 1
        $new = clone $this;
150 1
        $new->operator = $value;
151
152 1
        return $new;
153
    }
154
155 25
    private function getMessage(): string
156
    {
157 25
        if ($this->message !== null) {
158 1
            return $this->message;
159
        }
160
161 24
        switch ($this->operator) {
162 24
            case '==':
163 16
            case '===':
164 10
                return 'Value must be equal to "{value}".';
165 14
            case '!=':
166 11
            case '!==':
167 7
                return 'Value must not be equal to "{value}".';
168 7
            case '>':
169 2
                return 'Value must be greater than "{value}".';
170 5
            case '>=':
171 2
                return 'Value must be greater than or equal to "{value}".';
172 3
            case '<':
173 2
                return 'Value must be less than "{value}".';
174 1
            case '<=':
175 1
                return 'Value must be less than or equal to "{value}".';
176
            default:
177
                throw new RuntimeException("Unknown operator: {$this->operator}");
178
        }
179
    }
180
181 29
    protected function validateValue($value, ?ValidationContext $context = null): Result
182
    {
183 29
        $result = new Result();
184
185 29
        if (!$this->compareValues($this->operator, $this->type, $value, $this->compareValue)) {
186 14
            $message = $this->formatMessage($this->getMessage(), ['value' => $this->compareValue]);
187 14
            $result->addError($message);
188
        }
189
190 29
        return $result;
191
    }
192
193
    /**
194
     * Compares two values with the specified operator.
195
     *
196
     * @param string $operator the comparison operator
197
     * @param string $type the type of the values being compared
198
     * @param mixed $value the value being compared
199
     * @param mixed $compareValue another value being compared
200
     *
201
     * @return bool whether the comparison using the specified operator is true.
202
     */
203 29
    protected function compareValues(string $operator, string $type, $value, $compareValue): bool
204
    {
205 29
        if ($type === self::TYPE_NUMBER) {
206
            $value = (float) $value;
207
            $compareValue = (float)$compareValue;
208
        } else {
209 29
            $value = (string) $value;
210 29
            $compareValue = (string) $compareValue;
211
        }
212 29
        switch ($operator) {
213 29
            case '==':
214 4
                return $value == $compareValue;
215 25
            case '===':
216 4
                return $value === $compareValue;
217 21
            case '!=':
218 5
                return $value != $compareValue;
219 16
            case '!==':
220 4
                return $value !== $compareValue;
221 12
            case '>':
222 3
                return $value > $compareValue;
223 9
            case '>=':
224 3
                return $value >= $compareValue;
225 6
            case '<':
226 3
                return $value < $compareValue;
227 3
            case '<=':
228 3
                return $value <= $compareValue;
229
            default:
230
                return false;
231
        }
232
    }
233
234 11
    public function getOptions(): array
235
    {
236 11
        return array_merge(parent::getOptions(), [
237 11
            'compareValue' => $this->compareValue,
238 11
            'message' => $this->formatMessage($this->getMessage(), ['value' => $this->compareValue]),
239 11
            'type' => $this->type,
240 11
            'operator' => $this->operator,
241
        ]);
242
    }
243
}
244