| Total Complexity | 43 |
| Total Lines | 257 |
| Duplicated Lines | 0 % |
| Changes | 1 | ||
| Bugs | 0 | Features | 0 |
Complex classes like MongoDB 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 MongoDB, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 11 | class MongoDB |
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| 12 | { |
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| 13 | use MongoConnection; |
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| 14 | |||
| 15 | protected $db; |
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| 16 | protected $collection; |
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| 17 | protected $databaseName; |
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| 18 | protected $collectionName; |
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| 19 | |||
| 20 | public function command(array $command) |
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| 21 | { |
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| 22 | return static::getMongoClient()->{$this->admin}->command($command); |
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| 23 | } |
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| 24 | |||
| 25 | public function renameCollection($fromNs, $toNs) |
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| 26 | { |
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| 27 | return $this->command(array('renameCollection' => $fromNs, 'to' => $toNs)); |
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| 28 | } |
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| 29 | |||
| 30 | public function renameFields($collectionName, $fields) |
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| 31 | { |
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| 32 | $rename = []; |
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| 33 | foreach ($fields as $oldName => $newName) { |
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| 34 | $rename[$oldName] = $newName; |
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| 35 | } |
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| 36 | $update = array( |
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| 37 | '$rename' => $rename, |
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| 38 | ); |
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| 39 | |||
| 40 | return $this->selectCollection($collectionName)->updateMany(array(), $update, array('upsert' => true)); |
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| 41 | } |
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| 42 | |||
| 43 | public function getDB() |
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| 44 | { |
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| 45 | return DB::connection()->getMongoDB(); |
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| 46 | } |
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| 47 | |||
| 48 | public function getNamespace($databaseName, $collectionName) |
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| 49 | { |
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| 50 | return $databaseName . '.' . $collectionName; |
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| 51 | } |
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| 52 | |||
| 53 | public function getCollections() |
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| 54 | { |
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| 55 | return $this->getDB()->listCollections(); |
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| 56 | } |
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| 57 | |||
| 58 | public function getCollectionNames() |
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| 59 | { |
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| 60 | $collections = $this->getCollections(); |
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| 61 | $collectionNames = []; |
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| 62 | foreach ($collections as $key => $collection) { |
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| 63 | $collectionNames[] = $collection->getName(); |
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| 64 | } |
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| 65 | |||
| 66 | return $collectionNames; |
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| 67 | } |
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| 68 | |||
| 69 | public function hasCollection($collectionName) |
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| 70 | { |
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| 71 | return (in_array($collectionName, $this->getCollectionNames())) ? true : false; |
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| 72 | } |
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| 73 | |||
| 74 | public function createCollection($collectionName) |
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| 75 | { |
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| 76 | return $this->getDB()->createCollection($collectionName); |
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| 77 | } |
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| 78 | |||
| 79 | public function getCollection($collectionName) |
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| 89 | ]; |
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| 90 | } |
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| 91 | |||
| 92 | public function updateCollection($collection) |
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| 112 | |||
| 113 | } |
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| 114 | |||
| 115 | public function setFields($collectionName, $fields) |
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| 116 | { |
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| 117 | $collection = $this->selectCollection($collectionName); |
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| 118 | /* |
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| 119 | * Rename Columns |
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| 120 | */ |
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| 121 | $renames = []; |
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| 122 | foreach ($fields as $field) { |
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| 123 | if ($field->oldName != "") { |
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| 124 | if ($field->oldName != $field->name) { |
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| 125 | $renames[$field->oldName] = $field->name; |
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| 126 | } |
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| 127 | |||
| 128 | } |
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| 129 | } |
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| 130 | $update = []; |
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| 131 | if (count($renames) > 0) { |
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| 132 | $update['$rename'] = $renames; |
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| 133 | $collection->updateMany(array(), $update, array('upsert' => true)); |
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| 134 | foreach ($renames as $oldName => $newName) { |
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| 135 | $collection_field = CollectionField::where('old_name', $oldName)->first(); |
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| 136 | $collection_field->old_name = $newName; |
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| 137 | $collection_field->update(); |
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| 138 | } |
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| 139 | } |
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| 140 | |||
| 141 | $newFields = $this->getColumnsName($collectionName); |
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| 142 | $columns = $this->getCollectionColumns($collectionName); |
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| 143 | |||
| 144 | /* |
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| 145 | * Add Columns |
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| 146 | */ |
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| 147 | |||
| 148 | if ($collection->count() > 0) { |
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| 149 | $sets = []; |
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| 150 | foreach ($newFields as $newField) { |
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| 151 | $cursor = $collection->find(); |
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| 152 | $iterator = iterator_to_array($cursor); |
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| 153 | |||
| 154 | foreach ($iterator as $document) { |
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| 155 | $columnNames = []; |
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| 156 | $id = ""; |
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| 157 | foreach ($document as $columnName => $columnValue) { |
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| 158 | if (is_object($columnValue)) { |
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| 159 | foreach ($columnValue as $key => $value) { |
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| 160 | if ($columnName == '_id') { |
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| 161 | $id = $value; |
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| 162 | } |
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| 163 | } |
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| 164 | } |
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| 165 | $columnNames[] = $columnName; |
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| 166 | } |
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| 167 | |||
| 168 | if ($id != "" && !in_array($newField, $columnNames)) { |
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| 169 | $update['$set'] = array($newField => ""); |
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| 170 | $collection->updateOne( |
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| 171 | array("_id" => new \MongoDB\BSON\ObjectID($id)), |
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| 172 | $update, |
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| 173 | array('upsert' => true) |
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| 174 | ); |
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| 175 | } |
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| 176 | } |
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| 177 | } |
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| 178 | |||
| 179 | } |
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| 180 | |||
| 181 | /* |
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| 182 | * Remove Columns |
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| 183 | */ |
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| 184 | |||
| 185 | $update = []; |
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| 186 | |||
| 187 | $unsets = []; |
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| 188 | foreach ($columns as $column) { |
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| 189 | if (!in_array($column, $newFields)) { |
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| 190 | $unsets[$column] = ""; |
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| 191 | } |
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| 192 | } |
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| 193 | |||
| 194 | if (count($unsets) > 0) { |
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| 195 | $update['$unset'] = $unsets; |
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| 196 | $collection->updateMany(array(), $update, array('upsert' => true)); |
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| 197 | } |
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| 198 | |||
| 199 | return true; |
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| 200 | } |
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| 201 | |||
| 202 | public function dropCollection($collectionName) |
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| 203 | { |
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| 204 | $this->getDB()->dropCollection($collectionName); |
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| 205 | } |
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| 206 | |||
| 207 | public function selectCollection($collectionName) |
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| 210 | } |
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| 211 | |||
| 212 | public function getCollectionColumns($collectionName) |
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| 213 | { |
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| 214 | $cursor = $this->selectCollection($collectionName)->find(); |
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| 215 | $iterator = iterator_to_array($cursor); |
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| 216 | $columnNames = []; |
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| 217 | |||
| 218 | foreach ($iterator as $document) { |
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| 219 | foreach ($document as $columnName => $columnValue) { |
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| 220 | $columnNames[] = $columnName; |
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| 221 | } |
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| 222 | } |
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| 223 | |||
| 224 | return array_values(array_unique($columnNames)); |
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| 225 | } |
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| 226 | |||
| 227 | public function getColumns($collectionName) |
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| 263 | } |
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| 264 | |||
| 265 | public function getColumnsName($collectionName) |
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| 268 | } |
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| 269 | |||
| 270 | } |
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| 271 |