# yiisoft/yii2

framework/base/Model.php

### Summary

C
1 day

#### Function scenarios has a Cognitive Complexity of 40 (exceeds 5 allowed). Consider refactoring. Open

    public function scenarios()
{
$scenarios = [self::SCENARIO_DEFAULT => []]; foreach ($this->getValidators() as $validator) { foreach ($validator->on as $scenario) { Found in framework/base/Model.php - About 6 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 #### The class Model has 29 non-getter- and setter-methods. Consider refactoring Model to keep number of methods under 25. Open class Model extends Component implements StaticInstanceInterface, IteratorAggregate, ArrayAccess, Arrayable { use ArrayableTrait; use StaticInstanceTrait;  Found in framework/base/Model.php by phpmd Since: PHPMD 0.1 A class with too many 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'. The default was changed from 10 to 25 in PHPMD 2.3. Source: http://phpmd.org/rules/codesize.txt #### The class Model has an overall complexity of 127 which is very high. The configured complexity threshold is 50. Open class Model extends Component implements StaticInstanceInterface, IteratorAggregate, ArrayAccess, Arrayable { use ArrayableTrait; use StaticInstanceTrait;  Found in framework/base/Model.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 == $b2) { fiddle(); } else { } } } // Several other complex methods } #### The class Model has 29 public methods. Consider refactoring Model to keep number of public methods under 10. Open class Model extends Component implements StaticInstanceInterface, IteratorAggregate, ArrayAccess, Arrayable { use ArrayableTrait; use StaticInstanceTrait;  Found in framework/base/Model.php by phpmd Since: PHPMD 0.1 A class with too many public methods is probably a good suspect for refactoring, in order to reduce its complexity and find a way to have more fine grained objects. By default it ignores methods starting with 'get' or 'set'. Source: http://phpmd.org/rules/codesize.txt #### Function loadMultiple has a Cognitive Complexity of 11 (exceeds 5 allowed). Consider refactoring. Open  public static function loadMultiple($models, $data,$formName = null)
{
if ($formName === null) { /* @var$first Model|false */
$first = reset($models);
Found in framework/base/Model.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"

#### Function getActiveValidators has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring. Open

    public function getActiveValidators($attribute = null) {$activeAttributes = $this->activeAttributes(); if ($attribute !== null && !in_array($attribute,$activeAttributes, true)) {
return [];
Found in framework/base/Model.php - About 45 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"

#### Function addErrors has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring. Open

    public function addErrors(array $items) { foreach ($items as $attribute =>$errors) {
if (is_array($errors)) { foreach ($errors as $error) { Found in framework/base/Model.php - About 35 mins to fix # Cognitive Complexity Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend. ### A method's cognitive complexity is based on a few simple rules: • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one • Code is considered more complex for each "break in the linear flow of the code" • Code is considered more complex when "flow breaking structures are nested" ### Further reading #### Function setAttributes has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring. Open  public function setAttributes($values, $safeOnly = true) { if (is_array($values)) {
$attributes = array_flip($safeOnly ? $this->safeAttributes() :$this->attributes());
foreach ($values as$name => $value) { Found in framework/base/Model.php - About 35 mins to fix # Cognitive Complexity Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend. ### A method's cognitive complexity is based on a few simple rules: • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one • Code is considered more complex for each "break in the linear flow of the code" • Code is considered more complex when "flow breaking structures are nested" ### Further reading #### Function createValidators has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring. Open  public function createValidators() {$validators = new ArrayObject();
foreach ($this->rules() as$rule) {
if ($rule instanceof Validator) { Found in framework/base/Model.php - About 25 mins to fix # Cognitive Complexity Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend. ### A method's cognitive complexity is based on a few simple rules: • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one • Code is considered more complex for each "break in the linear flow of the code" • Code is considered more complex when "flow breaking structures are nested" ### Further reading #### The method scenarios() has a Cyclomatic Complexity of 17. The configured cyclomatic complexity threshold is 10. Open  public function scenarios() {$scenarios = [self::SCENARIO_DEFAULT => []];
foreach ($this->getValidators() as$validator) {
foreach ($validator->on as$scenario) {
Found in framework/base/Model.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 ($z) { 9 case 1: fiddle(); break; 10 case 2: fiddle(); break; 11 case 3: fiddle(); break; default: fiddle(); break; } } } } #### The class Model has a coupling between objects value of 15. Consider to reduce the number of dependencies under 13. Open class Model extends Component implements StaticInstanceInterface, IteratorAggregate, ArrayAccess, Arrayable { use ArrayableTrait; use StaticInstanceTrait;  Found in framework/base/Model.php by phpmd Since: PHPMD 1.1.0 A class with too many dependencies has negative impacts on several quality aspects of a class. This includes quality criteria like stability, maintainability and understandability Example: class Foo { /** * @var \foo\bar\X */ private$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) {}

// ...
}

#### The method setAttributes has a boolean flag argument $safeOnly, which is a certain sign of a Single Responsibility Principle violation. Open  public function setAttributes($values, $safeOnly = true) Found in framework/base/Model.php by phpmd Since: PHPMD 1.4.0 A boolean flag argument is a reliable indicator for a violation of the Single Responsibility Principle (SRP). You can fix this problem by extracting the logic in the boolean flag into its own class or method. Example: class Foo { public function bar($flag = true) {
}
}

#### The method validate has a boolean flag argument $clearErrors, which is a certain sign of a Single Responsibility Principle violation. Open  public function validate($attributeNames = null, $clearErrors = true) Found in framework/base/Model.php by phpmd Since: PHPMD 1.4.0 A boolean flag argument is a reliable indicator for a violation of the Single Responsibility Principle (SRP). You can fix this problem by extracting the logic in the boolean flag into its own class or method. Example: class Foo { public function bar($flag = true) {
}
}

{
// $howdy is not used } } #### Similar blocks of code found in 2 locations. Consider refactoring. Open  foreach ($this->rules() as $rule) { if ($rule instanceof Validator) {
$validators->append($rule);
} elseif (is_array($rule) && isset($rule[0], $rule[1])) { // attributes, validator type$validator = Validator::createValidator($rule[1],$this, (array) $rule[0], array_slice($rule, 2));
Found in framework/base/Model.php and 1 other location - About 2 hrs to fix
framework/base/DynamicModel.php on lines 205..214

## 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 105.

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.