Function extract
has a Cognitive Complexity of 58 (exceeds 5 allowed). Consider refactoring. Open
public function extract($object): ?array
{
$deleted = (bool) $object['deleted'];
$isMe = (int) $object['id'] === $this->userId;
- Read upRead up
Cognitive Complexity
Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.
A method's cognitive complexity is based on a few simple rules:
- Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
- Code is considered more complex for each "break in the linear flow of the code"
- Code is considered more complex when "flow breaking structures are nested"
Further reading
Method extract
has 127 lines of code (exceeds 25 allowed). Consider refactoring. Open
public function extract($object): ?array
{
$deleted = (bool) $object['deleted'];
$isMe = (int) $object['id'] === $this->userId;
The class UserHydrator has an overall complexity of 50 which is very high. The configured complexity threshold is 50. Open
class UserHydrator extends AbstractRestHydrator
{
protected int $userId = 0;
private ?string $userRole;
- Exclude checks
The method extract() has 157 lines of code. Current threshold is set to 100. Avoid really long methods. Open
public function extract($object): ?array
{
$deleted = (bool) $object['deleted'];
$isMe = (int) $object['id'] === $this->userId;
- Exclude checks
The method extract() has an NPath complexity of 806215681. The configured NPath complexity threshold is 200. Open
public function extract($object): ?array
{
$deleted = (bool) $object['deleted'];
$isMe = (int) $object['id'] === $this->userId;
- Read upRead up
- Exclude checks
NPathComplexity
Since: 0.1
The NPath complexity of a method is the number of acyclic execution paths through that method. A threshold of 200 is generally considered the point where measures should be taken to reduce complexity.
Example
class Foo {
function bar() {
// lots of complicated code
}
}
Source https://phpmd.org/rules/codesize.html#npathcomplexity
The method extract() has a Cyclomatic Complexity of 37. The configured cyclomatic complexity threshold is 10. Open
public function extract($object): ?array
{
$deleted = (bool) $object['deleted'];
$isMe = (int) $object['id'] === $this->userId;
- Read upRead up
- Exclude checks
CyclomaticComplexity
Since: 0.1
Complexity is determined by the number of decision points in a method plus one for the method entry. The decision points are 'if', 'while', 'for', and 'case labels'. Generally, 1-4 is low complexity, 5-7 indicates moderate complexity, 8-10 is high complexity, and 11+ is very high complexity.
Example
// Cyclomatic Complexity = 11
class Foo {
1 public function example() {
2 if ($a == $b) {
3 if ($a1 == $b1) {
fiddle();
4 } elseif ($a2 == $b2) {
fiddle();
} else {
fiddle();
}
5 } elseif ($c == $d) {
6 while ($c == $d) {
fiddle();
}
7 } elseif ($e == $f) {
8 for ($n = 0; $n < $h; $n++) {
fiddle();
}
} else {
switch ($z) {
9 case 1:
fiddle();
break;
10 case 2:
fiddle();
break;
11 case 3:
fiddle();
break;
default:
fiddle();
break;
}
}
}
}
Source https://phpmd.org/rules/codesize.html#cyclomaticcomplexity
The class UserHydrator has a coupling between objects value of 18. Consider to reduce the number of dependencies under 13. Open
class UserHydrator extends AbstractRestHydrator
{
protected int $userId = 0;
private ?string $userRole;
- Read upRead up
- Exclude checks
CouplingBetweenObjects
Since: 1.1.0
A class with too many dependencies has negative impacts on several quality aspects of a class. This includes quality criteria like stability, maintainability and understandability
Example
class Foo {
/**
* @var \foo\bar\X
*/
private $x = null;
/**
* @var \foo\bar\Y
*/
private $y = null;
/**
* @var \foo\bar\Z
*/
private $z = null;
public function setFoo(\Foo $foo) {}
public function setBar(\Bar $bar) {}
public function setBaz(\Baz $baz) {}
/**
* @return \SplObjectStorage
* @throws \OutOfRangeException
* @throws \InvalidArgumentException
* @throws \ErrorException
*/
public function process(\Iterator $it) {}
// ...
}
Source https://phpmd.org/rules/design.html#couplingbetweenobjects
The method extract uses an else expression. Else clauses are basically not necessary and you can simplify the code by not using them. Open
} else {
$longAway = false;
$lastOnline = Row::getDateTimeByColumnType('timestamp', $object['last_online']);
if ($lastOnline) {
$date = new DateTime();
- Read upRead up
- Exclude checks
ElseExpression
Since: 1.4.0
An if expression with an else branch is basically not necessary. You can rewrite the conditions in a way that the else clause is not necessary and the code becomes simpler to read. To achieve this, use early return statements, though you may need to split the code it several smaller methods. For very simple assignments you could also use the ternary operations.
Example
class Foo
{
public function bar($flag)
{
if ($flag) {
// one branch
} else {
// another branch
}
}
}
Source https://phpmd.org/rules/cleancode.html#elseexpression
Avoid using static access to class '\Autowp\Commons\Db\Table\Row' in method 'extract'. Open
$regDate = Row::getDateTimeByColumnType('timestamp', $object['reg_date']);
- Read upRead up
- Exclude checks
StaticAccess
Since: 1.4.0
Static access causes unexchangeable dependencies to other classes and leads to hard to test code. Avoid using static access at all costs and instead inject dependencies through the constructor. The only case when static access is acceptable is when used for factory methods.
Example
class Foo
{
public function bar()
{
Bar::baz();
}
}
Source https://phpmd.org/rules/cleancode.html#staticaccess
Avoid using static access to class '\Autowp\Commons\Db\Table\Row' in method 'extract'. Open
$lastOnline = Row::getDateTimeByColumnType('timestamp', $object['last_online']);
- Read upRead up
- Exclude checks
StaticAccess
Since: 1.4.0
Static access causes unexchangeable dependencies to other classes and leads to hard to test code. Avoid using static access at all costs and instead inject dependencies through the constructor. The only case when static access is acceptable is when used for factory methods.
Example
class Foo
{
public function bar()
{
Bar::baz();
}
}
Source https://phpmd.org/rules/cleancode.html#staticaccess
Avoid using static access to class '\Autowp\Commons\Db\Table\Row' in method 'extract'. Open
$lastOnline = Row::getDateTimeByColumnType('timestamp', $object['last_online']);
- Read upRead up
- Exclude checks
StaticAccess
Since: 1.4.0
Static access causes unexchangeable dependencies to other classes and leads to hard to test code. Avoid using static access at all costs and instead inject dependencies through the constructor. The only case when static access is acceptable is when used for factory methods.
Example
class Foo
{
public function bar()
{
Bar::baz();
}
}
Source https://phpmd.org/rules/cleancode.html#staticaccess
Avoid using static access to class '\Laminas\Stdlib\ArrayUtils' in method 'setOptions'. Open
$options = ArrayUtils::iteratorToArray($options);
- Read upRead up
- Exclude checks
StaticAccess
Since: 1.4.0
Static access causes unexchangeable dependencies to other classes and leads to hard to test code. Avoid using static access at all costs and instead inject dependencies through the constructor. The only case when static access is acceptable is when used for factory methods.
Example
class Foo
{
public function bar()
{
Bar::baz();
}
}
Source https://phpmd.org/rules/cleancode.html#staticaccess
The method extract uses an else expression. Else clauses are basically not necessary and you can simplify the code by not using them. Open
} else {
$longAway = true;
}
- Read upRead up
- Exclude checks
ElseExpression
Since: 1.4.0
An if expression with an else branch is basically not necessary. You can rewrite the conditions in a way that the else clause is not necessary and the code becomes simpler to read. To achieve this, use early return statements, though you may need to split the code it several smaller methods. For very simple assignments you could also use the ternary operations.
Example
class Foo
{
public function bar($flag)
{
if ($flag) {
// one branch
} else {
// another branch
}
}
}
Source https://phpmd.org/rules/cleancode.html#elseexpression
syntax error, unexpected 'int' (T_STRING), expecting function (T_FUNCTION) or const (T_CONST)
Open
protected int $userId = 0;
- Exclude checks
Identical blocks of code found in 6 locations. Consider refactoring. Open
public function setOptions($options): self
{
parent::setOptions($options);
if ($options instanceof Traversable) {
- Read upRead up
Duplicated Code
Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:
Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.
When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).
Tuning
This issue has a mass of 95.
We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.
The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.
If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.
See codeclimate-duplication
's documentation for more information about tuning the mass threshold in your .codeclimate.yml
.
Refactorings
- Extract Method
- Extract Class
- Form Template Method
- Introduce Null Object
- Pull Up Method
- Pull Up Field
- Substitute Algorithm
Further Reading
- Don't Repeat Yourself on the C2 Wiki
- Duplicated Code on SourceMaking
- Refactoring: Improving the Design of Existing Code by Martin Fowler. Duplicated Code, p76