Completed
Pull Request — master (#71)
by John
02:15
created

ElementalGridFieldDeleteAction::getColumnContent()   A

Complexity

Conditions 4
Paths 3

Size

Total Lines 18
Code Lines 13

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
dl 0
loc 18
rs 9.2
c 0
b 0
f 0
cc 4
eloc 13
nc 3
nop 3
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<?php
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/**
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 * @package elemental
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 */
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class ElementalGridFieldDeleteAction extends GridFieldDeleteAction {
0 ignored issues
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Coding Style Compatibility introduced by
PSR1 recommends that each class must be in a namespace of at least one level to avoid collisions.

You can fix this by adding a namespace to your class:

namespace YourVendor;

class YourClass { }

When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries.

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    public function getColumnContent($gridField, $record, $columnName) {
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        if(!$record->canEdit()) return;
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        if($record->canDelete() && $record->VirtualClones()->count() == 0) {
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            $field = GridField_FormAction::create($gridField,
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                    'DeleteRecord'.$record->ID,
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                    false,
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                    'deleterecord',
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                    array('RecordID' => $record->ID)
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                )
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                ->addExtraClass('gridfield-button-delete')
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                ->setAttribute('title', _t('GridAction.Delete', 'Delete'))
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                ->setAttribute('data-icon', 'cross-circle')
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                ->setDescription(_t('GridAction.DELETE_DESCRIPTION','Delete'));
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        }
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        return $field->Field();
0 ignored issues
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Bug introduced by
The variable $field does not seem to be defined for all execution paths leading up to this point.

If you define a variable conditionally, it can happen that it is not defined for all execution paths.

Let’s take a look at an example:

function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}

In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.

Available Fixes

  1. Check for existence of the variable explicitly:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        if (isset($x)) { // Make sure it's always set.
            echo $x;
        }
    }
    
  2. Define a default value for the variable:

    function myFunction($a) {
        $x = ''; // Set a default which gets overridden for certain paths.
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        echo $x;
    }
    
  3. Add a value for the missing path:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
    
            // We add support for the missing case.
            default:
                $x = '';
                break;
        }
    
        echo $x;
    }
    
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    }
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}
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