yiisoft/yii2

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framework/db/Schema.php

Summary

Maintainability
A
1 hr
Test Coverage

The class Schema has 26 non-getter- and setter-methods. Consider refactoring Schema to keep number of methods under 25.
Open

abstract class Schema extends BaseObject
{
    // The following are the supported abstract column data types.
    const TYPE_PK = 'pk';
    const TYPE_UPK = 'upk';
Severity: Minor
Found in framework/db/Schema.php by phpmd

TooManyMethods

Since: 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.

Example

Source https://phpmd.org/rules/codesize.html#toomanymethods

The class Schema has 18 public methods. Consider refactoring Schema to keep number of public methods under 10.
Open

abstract class Schema extends BaseObject
{
    // The following are the supported abstract column data types.
    const TYPE_PK = 'pk';
    const TYPE_UPK = 'upk';
Severity: Minor
Found in framework/db/Schema.php by phpmd

TooManyPublicMethods

Since: 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'.

Example

Source https://phpmd.org/rules/codesize.html#toomanypublicmethods

The class Schema has an overall complexity of 113 which is very high. The configured complexity threshold is 50.
Open

abstract class Schema extends BaseObject
{
    // The following are the supported abstract column data types.
    const TYPE_PK = 'pk';
    const TYPE_UPK = 'upk';
Severity: Minor
Found in framework/db/Schema.php by phpmd

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

    protected function getTableMetadata($name, $type, $refresh)
    {
        $cache = null;
        if ($this->db->enableSchemaCache && !in_array($name, $this->db->schemaCacheExclude, true)) {
            $schemaCache = is_string($this->db->schemaCache) ? Yii::$app->get($this->db->schemaCache, false) : $this->db->schemaCache;
Severity: Minor
Found in framework/db/Schema.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

The class Schema has a coupling between objects value of 18. Consider to reduce the number of dependencies under 13.
Open

abstract class Schema extends BaseObject
{
    // The following are the supported abstract column data types.
    const TYPE_PK = 'pk';
    const TYPE_UPK = 'upk';
Severity: Minor
Found in framework/db/Schema.php by phpmd

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 getSchemaNames has a boolean flag argument $refresh, which is a certain sign of a Single Responsibility Principle violation.
Open

    public function getSchemaNames($refresh = false)
Severity: Minor
Found in framework/db/Schema.php by phpmd

BooleanArgumentFlag

Since: 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 https://phpmd.org/rules/cleancode.html#booleanargumentflag

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

    public function getTableSchema($name, $refresh = false)
Severity: Minor
Found in framework/db/Schema.php by phpmd

BooleanArgumentFlag

Since: 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 https://phpmd.org/rules/cleancode.html#booleanargumentflag

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

    public function getTableSchemas($schema = '', $refresh = false)
Severity: Minor
Found in framework/db/Schema.php by phpmd

BooleanArgumentFlag

Since: 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 https://phpmd.org/rules/cleancode.html#booleanargumentflag

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

    public function getTableNames($schema = '', $refresh = false)
Severity: Minor
Found in framework/db/Schema.php by phpmd

BooleanArgumentFlag

Since: 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 https://phpmd.org/rules/cleancode.html#booleanargumentflag

Avoid assigning values to variables in if clauses and the like (line '461', column '63').
Open

    public function quoteValue($str)
    {
        if (!is_string($str)) {
            return $str;
        }
Severity: Minor
Found in framework/db/Schema.php by phpmd

IfStatementAssignment

Since: 2.7.0

Assignments in if clauses and the like are considered a code smell. Assignments in PHP return the right operand as their result. In many cases, this is an expected behavior, but can lead to many difficult to spot bugs, especially when the right operand could result in zero, null or an empty string and the like.

Example

class Foo
{
    public function bar($flag)
    {
        if ($foo = 'bar') { // possible typo
            // ...
        }
        if ($baz = 0) { // always false
            // ...
        }
    }
}

Source http://phpmd.org/rules/cleancode.html#ifstatementassignment

Avoid assigning values to variables in if clauses and the like (line '522', column '14').
Open

    public function quoteColumnName($name)
    {
        if (strpos($name, '(') !== false || strpos($name, '[[') !== false) {
            return $name;
        }
Severity: Minor
Found in framework/db/Schema.php by phpmd

IfStatementAssignment

Since: 2.7.0

Assignments in if clauses and the like are considered a code smell. Assignments in PHP return the right operand as their result. In many cases, this is an expected behavior, but can lead to many difficult to spot bugs, especially when the right operand could result in zero, null or an empty string and the like.

Example

class Foo
{
    public function bar($flag)
    {
        if ($foo = 'bar') { // possible typo
            // ...
        }
        if ($baz = 0) { // always false
            // ...
        }
    }
}

Source http://phpmd.org/rules/cleancode.html#ifstatementassignment

Avoid unused parameters such as '$name'.
Open

    protected function resolveTableName($name)
Severity: Minor
Found in framework/db/Schema.php by phpmd

UnusedFormalParameter

Since: 0.2

Avoid passing parameters to methods or constructors and then not using those parameters.

Example

class Foo
{
    private function bar($howdy)
    {
        // $howdy is not used
    }
}

Source https://phpmd.org/rules/unusedcode.html#unusedformalparameter

Avoid unused parameters such as '$schema'.
Open

    protected function findTableNames($schema = '')
Severity: Minor
Found in framework/db/Schema.php by phpmd

UnusedFormalParameter

Since: 0.2

Avoid passing parameters to methods or constructors and then not using those parameters.

Example

class Foo
{
    private function bar($howdy)
    {
        // $howdy is not used
    }
}

Source https://phpmd.org/rules/unusedcode.html#unusedformalparameter

Avoid unused parameters such as '$table'.
Open

    public function findUniqueIndexes($table)
Severity: Minor
Found in framework/db/Schema.php by phpmd

UnusedFormalParameter

Since: 0.2

Avoid passing parameters to methods or constructors and then not using those parameters.

Example

class Foo
{
    private function bar($howdy)
    {
        // $howdy is not used
    }
}

Source https://phpmd.org/rules/unusedcode.html#unusedformalparameter

Similar blocks of code found in 2 locations. Consider refactoring.
Open

    public function getPdoType($data)
    {
        static $typeMap = [
            // php type => PDO type
            'boolean' => \PDO::PARAM_BOOL,
Severity: Minor
Found in framework/db/Schema.php and 1 other location - About 35 mins to fix
framework/db/cubrid/Schema.php on lines 331..344

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 92.

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

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