lekoala /
silverstripe-excel-import-export
| Total Complexity | 102 |
| Total Lines | 626 |
| Duplicated Lines | 0 % |
| Changes | 11 | ||
| Bugs | 1 | Features | 1 |
Complex classes like ExcelImportExport often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use ExcelImportExport, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 30 | class ExcelImportExport |
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| 31 | { |
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| 32 | use Configurable; |
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| 33 | |||
| 34 | /** |
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| 35 | * Setting this to false improve performance but may lead to skipped cells |
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| 36 | * @var bool |
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| 37 | */ |
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| 38 | public static $iterate_only_existing_cells = false; |
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| 39 | |||
| 40 | /** |
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| 41 | * Useful if importing only one sheet or if computation fails |
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| 42 | * @var bool |
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| 43 | */ |
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| 44 | public static $use_old_calculated_value = false; |
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| 45 | |||
| 46 | /** |
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| 47 | * Some excel sheets need extra processing |
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| 48 | * @var boolean |
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| 49 | */ |
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| 50 | public static $process_headers = false; |
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| 51 | |||
| 52 | /** |
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| 53 | * @var string |
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| 54 | */ |
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| 55 | public static $default_tmp_reader = 'Xlsx'; |
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| 56 | |||
| 57 | /** |
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| 58 | * @var integer |
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| 59 | */ |
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| 60 | public static $limit_exports = 1000; |
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| 61 | |||
| 62 | /** |
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| 63 | * Get all db fields for a given dataobject class |
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| 64 | * |
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| 65 | * @param string $class |
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| 66 | * @return array |
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| 67 | */ |
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| 68 | public static function allFieldsForClass($class) |
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| 69 | { |
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| 70 | $dataClasses = ClassInfo::dataClassesFor($class); |
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| 71 | $fields = []; |
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| 72 | $dataObjectSchema = DataObject::getSchema(); |
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| 73 | foreach ($dataClasses as $dataClass) { |
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| 74 | $dataFields = $dataObjectSchema->databaseFields($dataClass); |
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| 75 | $fields = array_merge($fields, array_keys($dataFields)); |
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| 76 | } |
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| 77 | return array_combine($fields, $fields); |
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| 78 | } |
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| 79 | |||
| 80 | /** |
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| 81 | * Get fields that should be exported by default for a class |
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| 82 | * |
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| 83 | * @param string $class |
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| 84 | * @return array |
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| 85 | */ |
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| 86 | public static function exportFieldsForClass($class) |
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| 87 | { |
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| 88 | $singl = singleton($class); |
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| 89 | if ($singl->hasMethod('exportedFields')) { |
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| 90 | return $singl->exportedFields(); |
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| 91 | } |
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| 92 | $exportedFields = Config::inst()->get($class, 'exported_fields'); |
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| 93 | |||
| 94 | if (!$exportedFields) { |
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| 95 | $exportedFields = array_keys(self::allFieldsForClass($class)); |
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| 96 | } |
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| 97 | |||
| 98 | $unexportedFields = Config::inst()->get($class, 'unexported_fields'); |
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| 99 | |||
| 100 | if ($unexportedFields) { |
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| 101 | $exportedFields = array_diff($exportedFields, $unexportedFields); |
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| 102 | } |
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| 103 | |||
| 104 | $fields = []; |
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| 105 | foreach ($exportedFields as $key => $value) { |
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| 106 | if (is_int($key)) { |
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| 107 | $key = $value; |
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| 108 | } |
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| 109 | $fields[$key] = $value; |
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| 110 | } |
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| 111 | |||
| 112 | return $fields; |
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| 113 | } |
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| 114 | |||
| 115 | /** |
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| 116 | * Get fields that can be imported by default for a class |
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| 117 | * |
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| 118 | * @param string $class |
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| 119 | * @return array |
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| 120 | */ |
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| 121 | public static function importFieldsForClass($class) |
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| 122 | { |
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| 123 | $singl = singleton($class); |
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| 124 | if ($singl->hasMethod('importedFields')) { |
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| 125 | return $singl->importedFields(); |
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| 126 | } |
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| 127 | $importedFields = Config::inst()->get($class, 'imported_fields'); |
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| 128 | |||
| 129 | if (!$importedFields) { |
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| 130 | $importedFields = array_keys(self::allFieldsForClass($class)); |
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| 131 | } |
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| 132 | |||
| 133 | $unimportedFields = Config::inst()->get($class, 'unimported_Fields'); |
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| 134 | |||
| 135 | if ($unimportedFields) { |
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| 136 | $importedFields = array_diff($importedFields, $unimportedFields); |
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| 137 | } |
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| 138 | return array_combine($importedFields, $importedFields); |
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| 139 | } |
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| 140 | |||
| 141 | /** |
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| 142 | * Output a sample file for a class |
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| 143 | * |
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| 144 | * A custom file can be provided with a custom sampleExcelFile method |
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| 145 | * either as a file path or as a Excel instance |
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| 146 | * |
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| 147 | * @param string $class |
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| 148 | * @return void |
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| 149 | */ |
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| 150 | public static function sampleFileForClass($class) |
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| 151 | { |
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| 152 | $ext = self::getDefaultExtension(); |
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| 153 | $filter = new FileNameFilter(); |
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| 154 | $fileName = $filter->filter("sample-file-for-$class.$ext"); |
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| 155 | $spreadsheet = null; |
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| 156 | |||
| 157 | $sng = singleton($class); |
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| 158 | |||
| 159 | // Deprecated |
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| 160 | if ($sng->hasMethod('sampleExcelFile')) { |
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| 161 | $spreadsheet = $sng->sampleExcelFile(); |
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| 162 | // PHPSpreadsheet is required for this |
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| 163 | $writer = self::getDefaultWriter($spreadsheet); |
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| 164 | self::outputHeaders($fileName); |
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| 165 | $writer->save('php://output'); |
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| 166 | exit(); |
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| 167 | } |
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| 168 | |||
| 169 | if ($sng->hasMethod('sampleImportData')) { |
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| 170 | $data = $sng->sampleImportData(); |
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| 171 | } else { |
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| 172 | // Simply output the default headers |
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| 173 | $data = [ExcelImportExport::importFieldsForClass($class)]; |
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| 174 | } |
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| 175 | |||
| 176 | if (!is_iterable($data)) { |
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| 177 | throw new Exception("`sampleImportData` must return an iterable"); |
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| 178 | } |
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| 179 | |||
| 180 | $options = new Options(); |
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| 181 | $options->creator = "SilverStripe"; |
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| 182 | SpreadCompat::output($data, $fileName, $options); |
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| 183 | exit(); |
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| 184 | } |
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| 185 | |||
| 186 | /** |
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| 187 | * @param Controller $controller |
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| 188 | * @return bool |
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| 189 | */ |
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| 190 | public static function checkImportForm($controller) |
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| 204 | } |
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| 205 | |||
| 206 | /** |
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| 207 | * @param string $handler |
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| 208 | * @param Form $form |
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| 209 | * @param Controller $controller |
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| 210 | * @return HTTPResponse |
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| 211 | */ |
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| 212 | public static function useCustomHandler($handler, Form $form, Controller $controller) |
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| 267 | } |
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| 268 | |||
| 269 | public static function getDefaultExtension() |
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| 272 | } |
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| 273 | |||
| 274 | /** |
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| 275 | * Get default writer for PHPSpreadsheet if installed |
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| 276 | * |
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| 277 | * @param Spreadsheet $spreadsheet |
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| 278 | * @return IWriter |
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| 279 | */ |
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| 280 | public static function getDefaultWriter(Spreadsheet $spreadsheet): IWriter |
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| 281 | { |
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| 282 | if (!self::isPhpSpreadsheetAvailable()) { |
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| 283 | throw new Exception("PHPSpreadsheet is not installed"); |
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| 284 | } |
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| 285 | $writer = ucfirst(self::getDefaultExtension()); |
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| 286 | return IOFactory::createWriter($spreadsheet, $writer); |
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| 287 | } |
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| 288 | |||
| 289 | /** |
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| 290 | * Output excel headers |
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| 291 | * |
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| 292 | * @param string $fileName |
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| 293 | * @return void |
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| 294 | */ |
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| 295 | public static function outputHeaders($fileName) |
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| 296 | { |
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| 297 | $ext = pathinfo($fileName, PATHINFO_EXTENSION); |
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| 298 | switch ($ext) { |
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| 299 | case 'csv': |
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| 300 | header('Content-Type: text/csv'); |
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| 301 | break; |
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| 302 | case 'xlsx': |
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| 303 | header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'); |
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| 304 | break; |
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| 305 | default: |
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| 306 | header('Content-type: application/vnd.ms-excel'); |
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| 307 | break; |
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| 308 | } |
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| 309 | |||
| 310 | header('Content-Disposition: attachment; filename="' . $fileName . '"'); |
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| 311 | header('Cache-Control: max-age=0'); |
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| 312 | ob_clean(); |
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| 313 | } |
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| 314 | |||
| 315 | /** |
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| 316 | * Generate a default import file with all field name |
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| 317 | * @deprecated |
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| 318 | * @param string $class |
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| 319 | * @return string |
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| 320 | */ |
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| 321 | public static function generateDefaultSampleFile($class) |
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| 322 | { |
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| 323 | $opts = [ |
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| 324 | 'creator' => "SilverStripe" |
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| 325 | ]; |
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| 326 | $allFields = ExcelImportExport::importFieldsForClass($class); |
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| 327 | $tmpname = SpreadCompat::getTempFilename(); |
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| 328 | SpreadCompat::write([ |
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| 329 | $allFields |
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| 330 | ], $tmpname, ...$opts); |
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| 331 | return $tmpname; |
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| 332 | } |
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| 333 | |||
| 334 | /** |
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| 335 | * Show valid extensions helper (for uploaders) |
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| 336 | * |
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| 337 | * @return string |
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| 338 | */ |
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| 339 | public static function getValidExtensionsText() |
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| 340 | { |
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| 341 | return _t( |
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| 342 | 'ExcelImportExport.VALIDEXTENSIONS', |
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| 343 | "Allowed extensions: {extensions}", |
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| 344 | array('extensions' => implode(', ', self::getValidExtensions())) |
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| 345 | ); |
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| 346 | } |
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| 347 | |||
| 348 | /** |
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| 349 | * Extracted from PHPSpreadsheet |
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| 350 | * |
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| 351 | * @param string $ext |
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| 352 | * @return string |
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| 353 | */ |
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| 354 | public static function getReaderForExtension($ext) |
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| 355 | { |
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| 356 | switch (strtolower($ext)) { |
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| 357 | case 'xlsx': // Excel (OfficeOpenXML) Spreadsheet |
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| 358 | case 'xlsm': // Excel (OfficeOpenXML) Macro Spreadsheet (macros will be discarded) |
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| 359 | case 'xltx': // Excel (OfficeOpenXML) Template |
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| 360 | case 'xltm': // Excel (OfficeOpenXML) Macro Template (macros will be discarded) |
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| 361 | return 'Xlsx'; |
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| 362 | case 'xls': // Excel (BIFF) Spreadsheet |
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| 363 | case 'xlt': // Excel (BIFF) Template |
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| 364 | return 'Xls'; |
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| 365 | case 'ods': // Open/Libre Offic Calc |
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| 366 | case 'ots': // Open/Libre Offic Calc Template |
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| 367 | return 'Ods'; |
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| 368 | case 'slk': |
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| 369 | return 'Slk'; |
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| 370 | case 'xml': // Excel 2003 SpreadSheetML |
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| 371 | return 'Xml'; |
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| 372 | case 'gnumeric': |
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| 373 | return 'Gnumeric'; |
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| 374 | case 'htm': |
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| 375 | case 'html': |
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| 376 | return 'Html'; |
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| 377 | case 'csv': |
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| 378 | return 'Csv'; |
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| 379 | case 'tmp': // Useful when importing uploaded files |
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| 380 | return self::$default_tmp_reader; |
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| 381 | default: |
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| 382 | throw new Exception("Unsupported file type : $ext"); |
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| 383 | } |
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| 384 | } |
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| 385 | |||
| 386 | public static function isPhpSpreadsheetAvailable() |
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| 389 | } |
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| 390 | |||
| 391 | /** |
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| 392 | * If you exported separated files, you can merge them in one big file |
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| 393 | * Requires PHPSpreadsheet |
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| 394 | * @param array $files |
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| 395 | * @return Spreadsheet |
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| 396 | */ |
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| 397 | public static function mergeExcelFiles($files) |
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| 398 | { |
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| 399 | if (!self::isPhpSpreadsheetAvailable()) { |
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| 400 | throw new Exception("PHPSpreadsheet is not installed"); |
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| 401 | } |
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| 402 | $merged = new Spreadsheet; |
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| 403 | $merged->removeSheetByIndex(0); |
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| 404 | foreach ($files as $filename) { |
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| 405 | $remoteExcel = IOFactory::load($filename); |
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| 406 | $merged->addExternalSheet($remoteExcel->getActiveSheet()); |
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| 407 | } |
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| 408 | return $merged; |
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| 409 | } |
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| 410 | |||
| 411 | /** |
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| 412 | * Get valid extensions |
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| 413 | * |
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| 414 | * @return array |
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| 415 | */ |
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| 416 | public static function getValidExtensions() |
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| 417 | { |
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| 418 | $v = self::config()->allowed_extensions; |
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| 419 | if (!$v || !is_array($v)) { |
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| 420 | return []; |
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| 421 | } |
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| 422 | return $v; |
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| 423 | } |
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| 424 | |||
| 425 | /** |
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| 426 | * Save content of an array to a file |
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| 427 | * |
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| 428 | * @param iterable $data |
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| 429 | * @param string $filepath |
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| 430 | * @return void |
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| 431 | */ |
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| 432 | public static function arrayToFile($data, $filepath) |
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| 433 | { |
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| 434 | SpreadCompat::write($data, $filepath); |
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| 435 | } |
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| 436 | |||
| 437 | /** |
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| 438 | * Fast saving to csv |
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| 439 | * |
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| 440 | * @param array $data |
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| 441 | * @param string $filepath |
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| 442 | * @param string $delimiter |
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| 443 | * @param string $enclosure |
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| 444 | * @param string $escapeChar |
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| 445 | */ |
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| 446 | public static function arrayToCsv($data, $filepath, $delimiter = ',', $enclosure = '"', $escapeChar = '\\') |
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| 447 | { |
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| 448 | if (is_file($filepath)) { |
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| 449 | unlink($filepath); |
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| 450 | } |
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| 451 | $options = new Options(); |
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| 452 | $options->separator = $delimiter; |
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| 453 | $options->enclosure = $enclosure; |
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| 454 | $options->escape = $escapeChar; |
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| 455 | SpreadCompat::write($data, $filepath, $options); |
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| 456 | } |
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| 457 | |||
| 458 | public static function excelColumnRange(string $lower = 'A', string $upper = 'ZZ'): Generator |
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| 459 | { |
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| 460 | ++$upper; |
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| 461 | for ($i = $lower; $i !== $upper; ++$i) { |
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| 462 | yield $i; |
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| 463 | } |
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| 464 | } |
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| 465 | |||
| 466 | /** |
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| 467 | * String from column index. |
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| 468 | * |
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| 469 | * @param int $index Column index (1 = A) |
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| 470 | * @param $fallback |
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| 471 | * @return string |
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| 472 | */ |
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| 473 | public static function getLetter($index) |
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| 479 | } |
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| 480 | } |
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| 481 | } |
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| 482 | |||
| 483 | /** |
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| 484 | * Convert a file to an array |
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| 485 | * |
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| 486 | * @param string $filepath |
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| 487 | * @param string $delimiter (csv only) |
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| 488 | * @param string $enclosure (csv only) |
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| 489 | * @param string $ext if extension cannot be deducted from filepath (eg temp files) |
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| 490 | * @return array |
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| 491 | */ |
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| 492 | public static function fileToArray($filepath, $delimiter = ';', $enclosure = '', $ext = null) |
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| 507 | } |
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| 508 | |||
| 509 | /** |
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| 510 | * Convert an excel file to an array |
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| 511 | * |
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| 512 | * @param string $filepath |
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| 513 | * @param string $sheetname Load a specific worksheet by name |
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| 514 | * @param true $onlyExisting Avoid reading empty columns |
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| 515 | * @param string $ext if extension cannot be deducted from filepath (eg temp files) |
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| 516 | * @return array |
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| 517 | */ |
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| 518 | public static function excelToArray($filepath, $sheetname = null, $onlyExisting = true, $ext = null) |
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| 519 | { |
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| 520 | if (!self::isPhpSpreadsheetAvailable()) { |
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| 521 | throw new Exception("PHPSpreadsheet is not installed"); |
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| 522 | } |
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| 523 | if ($ext === null) { |
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| 524 | $ext = pathinfo($filepath, PATHINFO_EXTENSION); |
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| 525 | } |
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| 526 | $ext = pathinfo($filepath, PATHINFO_EXTENSION); |
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| 527 | $readerType = self::getReaderForExtension($ext); |
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| 528 | $reader = IOFactory::createReader($readerType); |
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| 529 | $reader->setReadDataOnly(true); |
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| 530 | if ($sheetname) { |
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| 531 | $reader->setLoadSheetsOnly($sheetname); |
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| 532 | } |
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| 533 | $data = []; |
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| 534 | if ($reader->canRead($filepath)) { |
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| 535 | $excel = $reader->load($filepath); |
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| 536 | if ($onlyExisting) { |
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| 537 | $data = []; |
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| 538 | foreach ($excel->getActiveSheet()->getRowIterator() as $row) { |
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| 539 | $cellIterator = $row->getCellIterator(); |
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| 540 | if (self::$iterate_only_existing_cells) { |
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| 541 | $cellIterator->setIterateOnlyExistingCells(true); |
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| 542 | } |
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| 543 | $cells = []; |
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| 544 | foreach ($cellIterator as $cell) { |
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| 545 | if (self::$use_old_calculated_value) { |
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| 546 | $cells[] = $cell->getOldCalculatedValue(); |
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| 547 | } else { |
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| 548 | $cells[] = $cell->getFormattedValue(); |
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| 549 | } |
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| 550 | } |
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| 551 | $data[] = $cells; |
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| 552 | } |
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| 553 | } else { |
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| 554 | $data = $excel->getActiveSheet()->toArray(null, true, false, false); |
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| 555 | } |
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| 556 | } else { |
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| 557 | throw new Exception("Cannot read $filepath"); |
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| 558 | } |
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| 559 | return $data; |
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| 560 | } |
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| 561 | |||
| 562 | /** |
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| 563 | * @link https://stackoverflow.com/questions/44304795/how-to-retrieve-date-from-table-cell-using-phpspreadsheet#44304796 |
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| 564 | * @param int $v |
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| 565 | * @return string |
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| 566 | */ |
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| 567 | public static function convertExcelDate($v) |
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| 576 | } |
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| 577 | |||
| 578 | /** |
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| 579 | * Convert an excel file to an associative array |
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| 580 | * |
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| 581 | * Suppose the first line are the headers of the file |
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| 582 | * Headers are trimmed in case you have crappy whitespace in your files |
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| 583 | * |
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| 584 | * @param string $filepath |
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| 585 | * @param string $sheetname Load a specific worksheet by name |
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| 586 | * @param string $ext if extension cannot be deducted from filepath (eg temp files) |
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| 587 | * @return array |
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| 588 | */ |
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| 589 | public static function excelToAssocArray($filepath, $sheetname = null, $ext = null) |
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| 656 | } |
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| 657 | } |
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| 658 |
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The issue could also be caused by a filter entry in the build configuration. If the path has been excluded in your configuration, e.g.
excluded_paths: ["lib/*"], you can move it to the dependency path list as follows:For further information see https://scrutinizer-ci.com/docs/tools/php/php-scrutinizer/#list-dependency-paths