| Total Complexity | 45 |
| Total Lines | 330 |
| Duplicated Lines | 0 % |
| Changes | 1 | ||
| Bugs | 0 | Features | 0 |
Complex classes like EmbedsMany 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 EmbedsMany, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
||
| 12 | class EmbedsMany extends EmbedsOneOrMany |
||
| 13 | { |
||
| 14 | /** |
||
| 15 | * {@inheritdoc} |
||
| 16 | */ |
||
| 17 | public function initRelation(array $models, $relation) |
||
| 18 | { |
||
| 19 | foreach ($models as $model) { |
||
| 20 | $model->setRelation($relation, $this->related->newCollection()); |
||
| 21 | } |
||
| 22 | |||
| 23 | return $models; |
||
| 24 | } |
||
| 25 | |||
| 26 | /** |
||
| 27 | * {@inheritdoc} |
||
| 28 | */ |
||
| 29 | public function getResults() |
||
| 30 | { |
||
| 31 | return $this->toCollection($this->getEmbedded()); |
||
| 32 | } |
||
| 33 | |||
| 34 | /** |
||
| 35 | * Save a new model and attach it to the parent model. |
||
| 36 | * @param Model $model |
||
| 37 | * @return Model|bool |
||
| 38 | */ |
||
| 39 | public function performInsert(Model $model) |
||
| 40 | { |
||
| 41 | // Generate a new key if needed. |
||
| 42 | if ($model->getKeyName() == '_id' && ! $model->getKey()) { |
||
| 43 | $model->setAttribute('_id', new ObjectID); |
||
| 44 | } |
||
| 45 | |||
| 46 | // For deeply nested documents, let the parent handle the changes. |
||
| 47 | if ($this->isNested()) { |
||
| 48 | $this->associate($model); |
||
| 49 | |||
| 50 | return $this->parent->save() ? $model : false; |
||
| 51 | } |
||
| 52 | |||
| 53 | // Push the new model to the database. |
||
| 54 | $result = $this->getBaseQuery()->push($this->localKey, $model->getAttributes(), true); |
||
| 55 | |||
| 56 | // Attach the model to its parent. |
||
| 57 | if ($result) { |
||
| 58 | $this->associate($model); |
||
| 59 | } |
||
| 60 | |||
| 61 | return $result ? $model : false; |
||
| 62 | } |
||
| 63 | |||
| 64 | /** |
||
| 65 | * Save an existing model and attach it to the parent model. |
||
| 66 | * @param Model $model |
||
| 67 | * @return Model|bool |
||
| 68 | */ |
||
| 69 | public function performUpdate(Model $model) |
||
| 70 | { |
||
| 71 | // For deeply nested documents, let the parent handle the changes. |
||
| 72 | if ($this->isNested()) { |
||
| 73 | $this->associate($model); |
||
| 74 | |||
| 75 | return $this->parent->save(); |
||
| 76 | } |
||
| 77 | |||
| 78 | // Get the correct foreign key value. |
||
| 79 | $foreignKey = $this->getForeignKeyValue($model); |
||
| 80 | |||
| 81 | $values = $this->getUpdateValues($model->getDirty(), $this->localKey.'.$.'); |
||
| 82 | |||
| 83 | // Update document in database. |
||
| 84 | $result = $this->getBaseQuery()->where($this->localKey.'.'.$model->getKeyName(), $foreignKey) |
||
| 85 | ->update($values); |
||
| 86 | |||
| 87 | // Attach the model to its parent. |
||
| 88 | if ($result) { |
||
| 89 | $this->associate($model); |
||
| 90 | } |
||
| 91 | |||
| 92 | return $result ? $model : false; |
||
| 93 | } |
||
| 94 | |||
| 95 | /** |
||
| 96 | * Delete an existing model and detach it from the parent model. |
||
| 97 | * @param Model $model |
||
| 98 | * @return int |
||
| 99 | */ |
||
| 100 | public function performDelete(Model $model) |
||
| 101 | { |
||
| 102 | // For deeply nested documents, let the parent handle the changes. |
||
| 103 | if ($this->isNested()) { |
||
| 104 | $this->dissociate($model); |
||
| 105 | |||
| 106 | return $this->parent->save(); |
||
| 107 | } |
||
| 108 | |||
| 109 | // Get the correct foreign key value. |
||
| 110 | $foreignKey = $this->getForeignKeyValue($model); |
||
| 111 | |||
| 112 | $result = $this->getBaseQuery()->pull($this->localKey, [$model->getKeyName() => $foreignKey]); |
||
| 113 | |||
| 114 | if ($result) { |
||
| 115 | $this->dissociate($model); |
||
| 116 | } |
||
| 117 | |||
| 118 | return $result; |
||
| 119 | } |
||
| 120 | |||
| 121 | /** |
||
| 122 | * Associate the model instance to the given parent, without saving it to the database. |
||
| 123 | * @param Model $model |
||
| 124 | * @return Model |
||
| 125 | */ |
||
| 126 | public function associate(Model $model) |
||
| 127 | { |
||
| 128 | if (! $this->contains($model)) { |
||
|
|
|||
| 129 | return $this->associateNew($model); |
||
| 130 | } |
||
| 131 | |||
| 132 | return $this->associateExisting($model); |
||
| 133 | } |
||
| 134 | |||
| 135 | /** |
||
| 136 | * Dissociate the model instance from the given parent, without saving it to the database. |
||
| 137 | * @param mixed $ids |
||
| 138 | * @return int |
||
| 139 | */ |
||
| 140 | public function dissociate($ids = []) |
||
| 141 | { |
||
| 142 | $ids = $this->getIdsArrayFrom($ids); |
||
| 143 | |||
| 144 | $records = $this->getEmbedded(); |
||
| 145 | |||
| 146 | $primaryKey = $this->related->getKeyName(); |
||
| 147 | |||
| 148 | // Remove the document from the parent model. |
||
| 149 | foreach ($records as $i => $record) { |
||
| 150 | if (in_array($record[$primaryKey], $ids)) { |
||
| 151 | unset($records[$i]); |
||
| 152 | } |
||
| 153 | } |
||
| 154 | |||
| 155 | $this->setEmbedded($records); |
||
| 156 | |||
| 157 | // We return the total number of deletes for the operation. The developers |
||
| 158 | // can then check this number as a boolean type value or get this total count |
||
| 159 | // of records deleted for logging, etc. |
||
| 160 | return count($ids); |
||
| 161 | } |
||
| 162 | |||
| 163 | /** |
||
| 164 | * Destroy the embedded models for the given IDs. |
||
| 165 | * @param mixed $ids |
||
| 166 | * @return int |
||
| 167 | */ |
||
| 168 | public function destroy($ids = []) |
||
| 169 | { |
||
| 170 | $count = 0; |
||
| 171 | |||
| 172 | $ids = $this->getIdsArrayFrom($ids); |
||
| 173 | |||
| 174 | // Get all models matching the given ids. |
||
| 175 | $models = $this->getResults()->only($ids); |
||
| 176 | |||
| 177 | // Pull the documents from the database. |
||
| 178 | foreach ($models as $model) { |
||
| 179 | if ($model->delete()) { |
||
| 180 | $count++; |
||
| 181 | } |
||
| 182 | } |
||
| 183 | |||
| 184 | return $count; |
||
| 185 | } |
||
| 186 | |||
| 187 | /** |
||
| 188 | * Delete all embedded models. |
||
| 189 | * @return int |
||
| 190 | */ |
||
| 191 | public function delete() |
||
| 192 | { |
||
| 193 | // Overwrite the local key with an empty array. |
||
| 194 | $result = $this->query->update([$this->localKey => []]); |
||
| 195 | |||
| 196 | if ($result) { |
||
| 197 | $this->setEmbedded([]); |
||
| 198 | } |
||
| 199 | |||
| 200 | return $result; |
||
| 201 | } |
||
| 202 | |||
| 203 | /** |
||
| 204 | * Destroy alias. |
||
| 205 | * @param mixed $ids |
||
| 206 | * @return int |
||
| 207 | */ |
||
| 208 | public function detach($ids = []) |
||
| 209 | { |
||
| 210 | return $this->destroy($ids); |
||
| 211 | } |
||
| 212 | |||
| 213 | /** |
||
| 214 | * Save alias. |
||
| 215 | * @param Model $model |
||
| 216 | * @return Model |
||
| 217 | */ |
||
| 218 | public function attach(Model $model) |
||
| 219 | { |
||
| 220 | return $this->save($model); |
||
| 221 | } |
||
| 222 | |||
| 223 | /** |
||
| 224 | * Associate a new model instance to the given parent, without saving it to the database. |
||
| 225 | * @param Model $model |
||
| 226 | * @return Model |
||
| 227 | */ |
||
| 228 | protected function associateNew($model) |
||
| 229 | { |
||
| 230 | // Create a new key if needed. |
||
| 231 | if ($model->getKeyName() === '_id' && ! $model->getAttribute('_id')) { |
||
| 232 | $model->setAttribute('_id', new ObjectID); |
||
| 233 | } |
||
| 234 | |||
| 235 | $records = $this->getEmbedded(); |
||
| 236 | |||
| 237 | // Add the new model to the embedded documents. |
||
| 238 | $records[] = $model->getAttributes(); |
||
| 239 | |||
| 240 | return $this->setEmbedded($records); |
||
| 241 | } |
||
| 242 | |||
| 243 | /** |
||
| 244 | * Associate an existing model instance to the given parent, without saving it to the database. |
||
| 245 | * @param Model $model |
||
| 246 | * @return Model |
||
| 247 | */ |
||
| 248 | protected function associateExisting($model) |
||
| 266 | } |
||
| 267 | |||
| 268 | /** |
||
| 269 | * @param null $perPage |
||
| 270 | * @param array $columns |
||
| 271 | * @param string $pageName |
||
| 272 | * @param null $page |
||
| 273 | * @return \Illuminate\Contracts\Pagination\LengthAwarePaginator |
||
| 274 | */ |
||
| 275 | public function paginate($perPage = null, $columns = ['*'], $pageName = 'page', $page = null) |
||
| 276 | { |
||
| 277 | $page = $page ?: Paginator::resolveCurrentPage($pageName); |
||
| 278 | $perPage = $perPage ?: $this->related->getPerPage(); |
||
| 279 | |||
| 280 | $results = $this->getEmbedded(); |
||
| 281 | $results = $this->toCollection($results); |
||
| 282 | $total = $results->count(); |
||
| 283 | $start = ($page - 1) * $perPage; |
||
| 284 | |||
| 285 | $sliced = $results->slice( |
||
| 286 | $start, |
||
| 287 | $perPage |
||
| 288 | ); |
||
| 289 | |||
| 290 | return new LengthAwarePaginator( |
||
| 291 | $sliced, |
||
| 292 | $total, |
||
| 293 | $perPage, |
||
| 294 | $page, |
||
| 295 | [ |
||
| 296 | 'path' => Paginator::resolveCurrentPath(), |
||
| 297 | ] |
||
| 298 | ); |
||
| 299 | } |
||
| 300 | |||
| 301 | /** |
||
| 302 | * {@inheritdoc} |
||
| 303 | */ |
||
| 304 | protected function getEmbedded() |
||
| 305 | { |
||
| 306 | return parent::getEmbedded() ?: []; |
||
| 307 | } |
||
| 308 | |||
| 309 | /** |
||
| 310 | * {@inheritdoc} |
||
| 311 | */ |
||
| 312 | protected function setEmbedded($models) |
||
| 313 | { |
||
| 314 | if (! is_array($models)) { |
||
| 315 | $models = [$models]; |
||
| 316 | } |
||
| 317 | |||
| 318 | return parent::setEmbedded(array_values($models)); |
||
| 319 | } |
||
| 320 | |||
| 321 | /** |
||
| 322 | * {@inheritdoc} |
||
| 323 | */ |
||
| 324 | public function __call($method, $parameters) |
||
| 331 | } |
||
| 332 | |||
| 333 | /** |
||
| 334 | * Get the name of the "where in" method for eager loading. |
||
| 335 | * @param \Illuminate\Database\Eloquent\Model $model |
||
| 336 | * @param string $key |
||
| 337 | * @return string |
||
| 338 | */ |
||
| 339 | protected function whereInMethod(EloquentModel $model, $key) |
||
| 342 | } |
||
| 343 | } |
||
| 344 |