| Conditions | 16 | 
| Paths | 60 | 
| Total Lines | 65 | 
| Code Lines | 39 | 
| Lines | 0 | 
| Ratio | 0 % | 
| Changes | 0 | ||
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
| 1 | <?php  | 
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| 32 | public function generateExportFileData($gridField)  | 
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| 33 |     { | 
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| 34 | $separator = $this->csvSeparator;  | 
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| 35 | $csvColumns = ($this->exportColumns)  | 
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| 36 | ? $this->exportColumns  | 
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| 37 | : singleton($gridField->getModelClass())->summaryFields();  | 
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| 38 | $fileData = '';  | 
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| 39 | $columnData = array();  | 
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                         | 
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| 40 | |||
| 41 |         if ($this->csvHasHeader) { | 
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| 42 | $headers = array();  | 
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| 43 | |||
| 44 | // determine the CSV headers. If a field is callable (e.g. anonymous function) then use the  | 
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| 45 | // source name as the header instead  | 
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| 46 |             foreach ($csvColumns as $columnSource => $columnHeader) { | 
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| 47 |                 if (is_array($columnHeader) && array_key_exists('title', $columnHeader)) { | 
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| 48 | $headers[] = $columnHeader['title'];  | 
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| 49 |                 } else { | 
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| 50 | $headers[] = (!is_string($columnHeader) && is_callable($columnHeader))  | 
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| 51 | ? $columnSource  | 
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| 52 | : $columnHeader;  | 
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| 53 | }  | 
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| 54 | }  | 
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| 55 | |||
| 56 |             $fileData .= "\"" . implode("\"{$separator}\"", array_values($headers)) . "\""; | 
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| 57 | $fileData .= "\n";  | 
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| 58 | }  | 
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| 59 | |||
| 60 | // The is the only variation from the parent, using getList() instead of getManipulatedList()  | 
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| 61 | $items = $gridField->getList();  | 
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| 62 | |||
| 63 | // @todo should GridFieldComponents change behaviour based on whether others are available in the config?  | 
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| 64 |         foreach ($gridField->getConfig()->getComponents() as $component) { | 
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| 65 |             if ($component instanceof GridFieldFilterHeader || $component instanceof GridFieldSortableHeader) { | 
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| 66 | $items = $component->getManipulatedData($gridField, $items);  | 
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| 67 | }  | 
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| 68 | }  | 
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| 69 | |||
| 70 |         foreach ($items->limit(null) as $item) { | 
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| 71 | $columnData = array();  | 
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| 72 | |||
| 73 |             foreach ($csvColumns as $columnSource => $columnHeader) { | 
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| 74 |                 if (!is_string($columnHeader) && is_callable($columnHeader)) { | 
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| 75 |                     if ($item->hasMethod($columnSource)) { | 
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| 76 |                         $relObj = $item->{$columnSource}(); | 
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| 77 |                     } else { | 
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| 78 | $relObj = $item->relObject($columnSource);  | 
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| 79 | }  | 
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| 80 | |||
| 81 | $value = $columnHeader($relObj);  | 
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| 82 |                 } else { | 
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| 83 | $value = $gridField->getDataFieldValue($item, $columnSource);  | 
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| 84 | }  | 
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| 85 | |||
| 86 |                 $value = str_replace(array("\r", "\n"), "\n", $value); | 
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| 87 |                 $columnData[] = '"' . str_replace('"', '\"', $value) . '"'; | 
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| 88 | }  | 
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| 89 | $fileData .= implode($separator, $columnData);  | 
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| 90 | $fileData .= "\n";  | 
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| 91 | |||
| 92 | $item->destroy();  | 
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| 93 | }  | 
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| 94 | |||
| 95 | return $fileData;  | 
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| 96 | }  | 
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| 97 | }  | 
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| 98 | 
This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVarassignment in line 1 and the$higherassignment in line 2 are dead. The first because$myVaris never used and the second because$higheris always overwritten for every possible time line.