yiisoft/yii2

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framework/web/View.php

Summary

Maintainability
B
4 hrs
Test Coverage

The class View has 15 public methods. Consider refactoring View to keep number of public methods under 10.
Open

class View extends \yii\base\View
{
    /**
     * @event Event an event that is triggered by [[beginBody()]].
     */
Severity: Minor
Found in framework/web/View.php by phpmd

Since: PHPMD 0.1

A class with too many public methods is probably a good suspect for refactoring, in order to reduce its complexity and find a way to have more fine grained objects. By default it ignores methods starting with 'get' or 'set'.

Source: http://phpmd.org/rules/codesize.txt

The class View has an overall complexity of 71 which is very high. The configured complexity threshold is 50.
Open

class View extends \yii\base\View
{
    /**
     * @event Event an event that is triggered by [[beginBody()]].
     */
Severity: Minor
Found in framework/web/View.php by phpmd

Since: PHPMD 0.2.5

The Weighted Method Count (WMC) of a class is a good indicator of how much time and effort is required to modify and maintain this class. The WMC metric is defined as the sum of complexities of all methods declared in a class. A large number of methods also means that this class has a greater potential impact on derived classes.

Example:

class Foo {
      public function bar() {
          if ($a == $b)  {
              if ($a1 == $b1) {
                  fiddle();
              } elseif ($a2 == $b2) {
                  fiddle();
              } else {
              }
          }
      }
      public function baz() {
          if ($a == $b) {
              if ($a1 == $b1) {
                  fiddle();
              } elseif ($a2 == $b2) {
                  fiddle();
              } else {
              }
          }
      }
      // Several other complex methods
  }

Source: http://phpmd.org/rules/codesize.txt

Function renderBodyEndHtml has a Cognitive Complexity of 17 (exceeds 5 allowed). Consider refactoring.
Open

    protected function renderBodyEndHtml($ajaxMode)
    {
        $lines = [];

        if (!empty($this->jsFiles[self::POS_END])) {
Severity: Minor
Found in framework/web/View.php - About 2 hrs to fix

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

Function registerAssetBundle has a Cognitive Complexity of 11 (exceeds 5 allowed). Consider refactoring.
Open

    public function registerAssetBundle($name, $position = null)
    {
        if (!isset($this->assetBundles[$name])) {
            $am = $this->getAssetManager();
            $bundle = $am->getBundle($name);
Severity: Minor
Found in framework/web/View.php - About 1 hr to fix

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

Function registerFile has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
Open

    private function registerFile($type, $url, $options = [], $key = null)
    {
        $url = Yii::getAlias($url);
        $key = $key ?: $url;
        $depends = ArrayHelper::remove($options, 'depends', []);
Severity: Minor
Found in framework/web/View.php - About 55 mins to fix

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

Function renderHeadHtml has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

    protected function renderHeadHtml()
    {
        $lines = [];
        if (!empty($this->metaTags)) {
            $lines[] = implode("\n", $this->metaTags);
Severity: Minor
Found in framework/web/View.php - About 25 mins to fix

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

The method renderBodyEndHtml() has a Cyclomatic Complexity of 11. The configured cyclomatic complexity threshold is 10.
Open

    protected function renderBodyEndHtml($ajaxMode)
    {
        $lines = [];

        if (!empty($this->jsFiles[self::POS_END])) {
Severity: Minor
Found in framework/web/View.php by phpmd

Since: PHPMD 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: http://phpmd.org/rules/codesize.txt

The method registerAssetBundle() has a Cyclomatic Complexity of 10. The configured cyclomatic complexity threshold is 10.
Open

    public function registerAssetBundle($name, $position = null)
    {
        if (!isset($this->assetBundles[$name])) {
            $am = $this->getAssetManager();
            $bundle = $am->getBundle($name);
Severity: Minor
Found in framework/web/View.php by phpmd

Since: PHPMD 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: http://phpmd.org/rules/codesize.txt

The method registerFile() has a Cyclomatic Complexity of 10. The configured cyclomatic complexity threshold is 10.
Open

    private function registerFile($type, $url, $options = [], $key = null)
    {
        $url = Yii::getAlias($url);
        $key = $key ?: $url;
        $depends = ArrayHelper::remove($options, 'depends', []);
Severity: Minor
Found in framework/web/View.php by phpmd

Since: PHPMD 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: http://phpmd.org/rules/codesize.txt

The method endPage has a boolean flag argument $ajaxMode, which is a certain sign of a Single Responsibility Principle violation.
Open

    public function endPage($ajaxMode = false)
Severity: Minor
Found in framework/web/View.php by phpmd

Since: PHPMD 1.4.0

A boolean flag argument is a reliable indicator for a violation of the Single Responsibility Principle (SRP). You can fix this problem by extracting the logic in the boolean flag into its own class or method.

Example:

class Foo {
      public function bar($flag = true) {
      }
  }

Source: http://phpmd.org/rules/cleancode.txt

Avoid excessively long variable names like $asssetManagerAppendTimestamp. Keep variable name length under 25.
Open

            $asssetManagerAppendTimestamp = $this->getAssetManager()->appendTimestamp;
Severity: Minor
Found in framework/web/View.php by phpmd

Since: PHPMD 0.2

Detects when a field, formal or local variable is declared with a long name.

Example:

class Something {
      protected $reallyLongIntName = -3; // VIOLATION - Field
      public static function main( array $argumentsList[] ) { // VIOLATION - Formal
          $otherReallyLongName = -5; // VIOLATION - Local
          for ($interestingIntIndex = 0; // VIOLATION - For
               $interestingIntIndex < 10;
               $interestingIntIndex++ ) {
          }
      }
  }

Source: http://phpmd.org/rules/naming.txt

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