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HasPreviousUrlTrait::previous()   A
last analyzed

↳ Parent: HasPreviousUrlTrait

Complexity

Conditions 4
Paths 6

Size

Total Lines 10
Code Lines 8

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 0
CRAP Score 20

Importance

Changes 1
Bugs 0 Features 1
Metric Value
cc 4
eloc 8
nc 6
nop 1
dl 0
loc 10
rs 10
c 1
b 0
f 1
ccs 0
cts 8
cp 0
crap 20
1 
<?php
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namespace Nip\Router\Generator\Traits;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use Nip\Router\RequestContext;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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/**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 * Trait HasPreviousUrlTrait

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 * @package Nip\Router\Generator\Traits

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 * @method RequestContext getContext()

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 */

            


            
                                                                                                            
                            
            
                                    
            
            

                
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trait HasPreviousUrlTrait

            


            
                                                                                                            
                            
            
                                    
            
            

                
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{

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    /**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * Get the URL for the previous request.

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     *

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @param  mixed $fallback

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @return string

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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     */

            


            
                                                                        
                            
            
                                    
            
            

                
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    public function previous($fallback = false)

            


            
                                                                        
                            
            
                                    
            
            

                
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    {

            


            
                                                                        
                            
            
                                    
            
            

                
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        $referrer = $this->getContext()->getHeaders()->get('referer');

            


            
                                                                        
                            
            
                                    
            
            

                
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        $url = $referrer ? $this->to($referrer) : $this->getPreviousUrlFromSession();

            


                            

                    
                        
                    
                    
                    
                    
                                                                                                                                                        
                        

                            
                            
0 ignored issues

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Are you sure the usage of $this->getPreviousUrlFromSession() targeting Nip\Router\Generator\Tra...reviousUrlFromSession() seems to always return null.
                                                                                                                                                    

                    
                                            

                            

                            

                                
                                    
                                
                            


                            
This check looks for function or method calls that always return null and whose
return value is used.


class A
{
    function getObject()
    {
        return null;
    }

}

$a = new A();
if ($a->getObject()) {





The method getObject() can return nothing but null, so it makes no sense
to use the return value.


The reason is most likely that a function or method is imcomplete or has been
reduced for debug purposes.


                        

                                                    

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It seems like to() must be provided by classes using this trait. How about adding it as abstract method to this trait?
                                                                                   (
                                     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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        $url = $referrer ? $this->/** @scrutinizer ignore-call */ to($referrer) : $this->getPreviousUrlFromSession();

                                        

                                                                            

                                

                                                                                                                            

                    
                                                    

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        if ($url) {

            


            
                                                                        
                            
            
                                    
            
            

                
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            return $url;

            


            
                                                                        
                            
            
                                    
            
            

                
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        } elseif ($fallback) {

            


            
                                                                        
                            
            
                                    
            
            

                
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            return $this->to($fallback);

            


            
                                                                        
                            
            
                                    
            
            

                
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        } else {

            


            
                                                                        
                            
            
                                    
            
            

                
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            return $this->to('/');

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    /**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * Get the previous URL from the session if possible.

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     *

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @return string|null

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     */

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    protected function getPreviousUrlFromSession()

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        return null;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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//        $session = $this->getSession();

            


            
                                                                                                            
                            
            
                                    
            
            

                
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//        return $session ? $session->previousUrl() : null;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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}

            


            
                                                        
            
                                    
            
            

                
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