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Push — master ( 0272f5...3a0c5f )
by Aleksandr
28:04 queued 25:53
created

Connection::get()   A

↳ Parent: Connection

Complexity

Conditions 3
Paths 3

Size

Total Lines 10
Code Lines 6

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 7
CRAP Score 3

Importance

Changes 1
Bugs 0 Features 0
Metric Value
eloc 6
c 1
b 0
f 0
dl 0
loc 10
ccs 7
cts 7
cp 1
rs 10
cc 3
nc 3
nop 1
crap 3
1 
<?php
2 
/**
3 
 * This file is part of the eav package.
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 * @author    Aleksandr Drobotik <[email protected]>
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 * @copyright 2023 Aleksandr Drobotik
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 * @license   https://opensource.org/license/mit  The MIT License
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 */
8 
declare(strict_types=1);
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namespace Drobotik\Eav\Database;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use Doctrine\DBAL\Connection as DBALConnection;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use Doctrine\DBAL\DriverManager;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use Drobotik\Eav\Exception\ConnectionException;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use PDO;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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class Connection

            


            
                                                                                                            
                            
            
                                    
            
            

                
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{

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    protected static DBALConnection|null $conn = null;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    public static function reset() : void

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        self::$conn = null;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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    public static function get(array $params = null) : DBALConnection

            


            
                                                                        
                            
            
                                    
            
            

                
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    {

            


            
                                                                        
                            
            
                                    
            
            

                
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        if(!is_null($params)) {

            


            
                                                                        
                            
            
                                    
            
            

                
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            self::$conn = DriverManager::getConnection($params);

            


            
                                                                        
                            
            
                                    
            
            

                
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            return self::$conn;

            


            
                                                                        
                            
            
                                    
            
            

                
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        }

            


            
                                                                        
                            
            
                                    
            
            

                
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        if(!is_null(self::$conn)) {

            


            
                                                                        
                            
            
                                    
            
            

                
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            return self::$conn;

            


            
                                                                        
                            
            
                                    
            
            

                
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        }

            


            
                                                                        
                            
            
                                    
            
            

                
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        ConnectionException::undefined();

            


                            

                    
                        
                    
                    
                    
                    
                                                                                                    
                        

                            
                            
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In this branch, the function will implicitly return null which is incompatible with the type-hinted return Doctrine\DBAL\Connection. Consider adding a return statement or allowing null as return value.
                                                                                                

                    
                                            

                            

                            

                                
                                    
                                
                            


                            
For hinted functions/methods where all return statements with the correct type are only reachable via conditions, ?null? gets implicitly returned which may be incompatible with the hinted type.
Let?s take a look at an example:


interface ReturnsInt {
    public function returnsIntHinted(): int;
}

class MyClass implements ReturnsInt {
    public function returnsIntHinted(): int
    {
        if (foo()) {
            return 123;
        }
        // here: null is implicitly returned
    }
}





                        

                                                    

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    }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    public static function getNativeConnection() : PDO

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        return Connection::$conn->getNativeConnection();

            


                            

                    
                        
                    
                    
                    
                    
                                                                                                                                                        
                        

                            
                            
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The method getNativeConnection() does not exist on null.
                                                                                   (
                                     Ignorable by Annotation
                                )
                                

                                    
 If this is a false-positive, you can also ignore this issue in your code via the ignore-call   annotation

                                    

                                        

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        return Connection::$conn->/** @scrutinizer ignore-call */ getNativeConnection();

                                        

                                                                            

                                

                                                                                                                                                                                

                    
                                            

                            

                            

                                
                                    
                                
                            


                            
This check looks for calls to methods that do not seem to exist on a given type.
It looks for the method on the type itself as well as in inherited classes or
implemented interfaces.


This is most likely a typographical error or the method has been renamed.


                        

                                                    

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            Bug
            Best Practice
    
    
    
        introduced 
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The expression return Drobotik\Eav\Data...->getNativeConnection() could return the type resource which is incompatible with the type-hinted return PDO. Consider adding an additional type-check to rule them out.
                                                                                                                                                                                                        

                    
                                                    

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    }

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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}