DatetimeProvider::provide() - Code Metrics - Inspection of "[WIP] Feature constraints" - Samffy/recurrence - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#18)

by Samuel

created 2017-12-10 10:31 UTC

DatetimeProvider::provide() C

↳ Parent: DatetimeProvider

Complexity

Conditions	7
Paths	4

Size

Total Lines	32
Code Lines	16

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	15
CRAP Score	7

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
c	1
b	0
f	0
dl	0
loc	32
ccs	15
cts	15
cp	1
rs	6.7272
cc	7
eloc	16
nc	4
nop	1
crap	7

<?php

namespace Recurrence;

use Recurrence\Model\Recurrence;
use Recurrence\Provider\DatetimeProviderFactory;
use Recurrence\Validator\RecurrenceValidator;

/**
 * Class DatetimeProvider
 * @package Recurrence
 */
class DatetimeProvider
{
    /**
     * @param Recurrence $recurrence
     * @return array<\DateTime>
     */
    public function provide(Recurrence $recurrence)
    {
        RecurrenceValidator::validate($recurrence);

        $provider = DatetimeProviderFactory::create($recurrence);

        $datetimes = $provider->provide($recurrence);

        if (!$recurrence->hasConstraints()) {
            return $datetimes;
        }

        $filteredDatetimes = [];

        $previousDatetime = null;
        foreach ($datetimes as $key => $datetime) {
            $filteredDatetime = $this->applyConstraints($recurrence, $datetime);

            // Check that datetime do not pass recurrence end period
            if ($recurrence->hasPeriodEndAt() && $datetime > $recurrence->getPeriodEndAt()) {
                break;
            }

            // Avoid duplicate datetime due to constraint updates
            if (empty($filteredDatetimes) || $previousDatetime != $filteredDatetime) {
                $filteredDatetimes[] = $filteredDatetime;
                $previousDatetime    = $filteredDatetime;
            }
        }

        return $filteredDatetimes;
    }

    /**
     * @param Recurrence $recurrence
     * @param \Datetime  $datetime
     * @return \Datetime
     */
    private function applyConstraints($recurrence, $datetime)
    {
        // Apply each constraint on current datetime
        foreach ($recurrence->getConstraints() as $constraint) {
            $filteredDatetime = $constraint->apply($recurrence, $datetime);
        }

        return $filteredDatetime;
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}
    }
}


1		<?php
2
3		namespace Recurrence;
4
5		use Recurrence\Model\Recurrence;
6		use Recurrence\Provider\DatetimeProviderFactory;
7		use Recurrence\Validator\RecurrenceValidator;
8
9		/**
10		* Class DatetimeProvider
11		* @package Recurrence
12		*/
13		class DatetimeProvider
14		{
15		/**
16		* @param Recurrence $recurrence
17		* @return array<\DateTime>
18		*/
19		public function provide(Recurrence $recurrence)
20		{
21	1	RecurrenceValidator::validate($recurrence);
22
23	1	$provider = DatetimeProviderFactory::create($recurrence);
24
25	1	$datetimes = $provider->provide($recurrence);
26
27	1	if (!$recurrence->hasConstraints()) {
28	1	return $datetimes;
29		}
30
31	1	$filteredDatetimes = [];
32
33	1	$previousDatetime = null;
34	1	foreach ($datetimes as $key => $datetime) {
35	1	$filteredDatetime = $this->applyConstraints($recurrence, $datetime);
36
37		// Check that datetime do not pass recurrence end period
38	1	if ($recurrence->hasPeriodEndAt() && $datetime > $recurrence->getPeriodEndAt()) {
39	1	break;
40		}
41
42		// Avoid duplicate datetime due to constraint updates
43	1	if (empty($filteredDatetimes) \|\| $previousDatetime != $filteredDatetime) {
44	1	$filteredDatetimes[] = $filteredDatetime;
45	1	$previousDatetime = $filteredDatetime;
46		}
47		}
48
49	1	return $filteredDatetimes;
50		}
51
52		/**
53		* @param Recurrence $recurrence
54		* @param \Datetime $datetime
55		* @return \Datetime
56		*/
57		private function applyConstraints($recurrence, $datetime)
58		{
59		// Apply each constraint on current datetime
60	1	foreach ($recurrence->getConstraints() as $constraint) {
61	1	$filteredDatetime = $constraint->apply($recurrence, $datetime);
62		}
63
64	1	return $filteredDatetime;
		0 ignored issues – show Bug introduced 2017-12-10 10:33 UTC by Report Bug Copy Issue Report The variable `$filteredDatetime` does not seem to be defined for all execution paths leading up to this point. If you define a variable conditionally, it can happen that it is not defined for all execution paths. Let’s take a look at an example: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } // $x is potentially undefined here. echo $x; } In the above example, the variable `$x` is defined if you pass “foo” or “bar” as argument for `$a`. However, since the `switch` statement has no default case statement, if you pass any other value, the variable `$x` would be undefined. Available Fixes Check for existence of the variable explicitly: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } if (isset($x)) { // Make sure it's always set. echo $x; } } Define a default value for the variable: function myFunction($a) { $x = ''; // Set a default which gets overridden for certain paths. switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } echo $x; } Add a value for the missing path: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; // We add support for the missing case. default: $x = ''; break; } echo $x; } Loading history...
65		}
66		}
67

Samffy / recurrence

Pull Request — master (#18)

DatetimeProvider::provide() C

Complexity

Size

Duplication

Code Coverage

Importance

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