@@ -313,7 +313,6 @@ |
||
| 313 | 313 | * Run synchronization content if needed by the |
| 314 | 314 | * relation type. |
| 315 | 315 | * |
| 316 | - * @param array $actualContent |
|
| 317 | 316 | * @return void |
| 318 | 317 | */ |
| 319 | 318 | public function sync(array $entities) |
@@ -9,315 +9,315 @@ |
||
| 9 | 9 | |
| 10 | 10 | class HasManyThrough extends Relationship |
| 11 | 11 | { |
| 12 | - /** |
|
| 13 | - * The distance parent Entity instance. |
|
| 14 | - * |
|
| 15 | - * @var \Analogue\ORM\Entity |
|
| 16 | - */ |
|
| 17 | - protected $farParent; |
|
| 18 | - |
|
| 19 | - /** |
|
| 20 | - * The far parent map instance |
|
| 21 | - * |
|
| 22 | - * @var \Analogue\ORM\EntityMap |
|
| 23 | - */ |
|
| 24 | - protected $farParentMap; |
|
| 25 | - |
|
| 26 | - /** |
|
| 27 | - * The near key on the relationship. |
|
| 28 | - * |
|
| 29 | - * @var string |
|
| 30 | - */ |
|
| 31 | - protected $firstKey; |
|
| 32 | - |
|
| 33 | - /** |
|
| 34 | - * The far key on the relationship. |
|
| 35 | - * |
|
| 36 | - * @var string |
|
| 37 | - */ |
|
| 38 | - protected $secondKey; |
|
| 39 | - |
|
| 40 | - /** |
|
| 41 | - * Create a new has many relationship instance. |
|
| 42 | - * |
|
| 43 | - * @param Mapper $mapper |
|
| 44 | - * @param \Analogue\ORM\Mappable $farParent |
|
| 45 | - * @param \Analogue\ORM\EntityMap $parentMap |
|
| 46 | - * @param string $firstKey |
|
| 47 | - * @param string $secondKey |
|
| 48 | - * @throws \Analogue\ORM\Exceptions\MappingException |
|
| 49 | - */ |
|
| 50 | - public function __construct(Mapper $mapper, $farParent, $parentMap, $firstKey, $secondKey) |
|
| 51 | - { |
|
| 52 | - $this->firstKey = $firstKey; |
|
| 53 | - $this->secondKey = $secondKey; |
|
| 54 | - $this->farParent = $farParent; |
|
| 55 | - |
|
| 56 | - $this->farParentMap = $this->relatedMapper->getManager()->mapper($farParent)->getEntityMap(); |
|
| 57 | - |
|
| 58 | - $parentInstance = $this->relatedMapper->getManager()->mapper($parentMap->getClass())->newInstance(); |
|
| 59 | - |
|
| 60 | - parent::__construct($mapper, $parentInstance); |
|
| 61 | - } |
|
| 62 | - |
|
| 63 | - /** |
|
| 64 | - * @param $related |
|
| 65 | - * @return mixed |
|
| 66 | - */ |
|
| 67 | - public function attachTo($related) |
|
| 68 | - { |
|
| 69 | - // N/A |
|
| 70 | - } |
|
| 71 | - |
|
| 72 | - /** |
|
| 73 | - * @param $related |
|
| 74 | - * @return mixed |
|
| 75 | - */ |
|
| 76 | - public function detachFrom($related) |
|
| 77 | - { |
|
| 78 | - // N/A |
|
| 79 | - } |
|
| 80 | - |
|
| 81 | - /** |
|
| 82 | - * Set the base constraints on the relation query. |
|
| 83 | - * |
|
| 84 | - * @return void |
|
| 85 | - */ |
|
| 86 | - public function addConstraints() |
|
| 87 | - { |
|
| 88 | - $parentTable = $this->parentMap->getTable(); |
|
| 89 | - |
|
| 90 | - $this->setJoin(); |
|
| 91 | - |
|
| 92 | - if (static::$constraints) { |
|
| 93 | - $farParentKeyName = $this->farParentMap->getKeyName(); |
|
| 94 | - |
|
| 95 | - $this->query->where( |
|
| 96 | - $parentTable . '.' . $this->firstKey, |
|
| 97 | - '=', |
|
| 98 | - $this->farParent->getEntityAttribute($farParentKeyName) |
|
| 99 | - ); |
|
| 100 | - } |
|
| 101 | - } |
|
| 102 | - |
|
| 103 | - /** |
|
| 104 | - * Add the constraints for a relationship count query. |
|
| 105 | - * |
|
| 106 | - * @param Query $query |
|
| 107 | - * @param Query $parent |
|
| 108 | - * @return Query |
|
| 109 | - */ |
|
| 110 | - public function getRelationCountQuery(Query $query, Query $parent) |
|
| 111 | - { |
|
| 112 | - $parentTable = $this->parentMap->getTable(); |
|
| 113 | - |
|
| 114 | - $this->setJoin($query); |
|
| 115 | - |
|
| 116 | - $query->select(new Expression('count(*)')); |
|
| 117 | - |
|
| 118 | - $key = $this->wrap($parentTable . '.' . $this->firstKey); |
|
| 119 | - |
|
| 120 | - return $query->where($this->getHasCompareKey(), '=', new Expression($key)); |
|
| 121 | - } |
|
| 122 | - |
|
| 123 | - /** |
|
| 124 | - * Set the join clause on the query. |
|
| 125 | - * |
|
| 126 | - * @param null|Query $query |
|
| 127 | - * @return void |
|
| 128 | - */ |
|
| 129 | - protected function setJoin(Query $query = null) |
|
| 130 | - { |
|
| 131 | - $query = $query ?: $this->query; |
|
| 132 | - |
|
| 133 | - $foreignKey = $this->relatedMap->getTable() . '.' . $this->secondKey; |
|
| 134 | - |
|
| 135 | - $query->join($this->parentMap->getTable(), $this->getQualifiedParentKeyName(), '=', $foreignKey); |
|
| 136 | - } |
|
| 137 | - |
|
| 138 | - /** |
|
| 139 | - * Set the constraints for an eager load of the relation. |
|
| 140 | - * |
|
| 141 | - * @param array $entities |
|
| 142 | - * @return void |
|
| 143 | - */ |
|
| 144 | - public function addEagerConstraints(array $entities) |
|
| 145 | - { |
|
| 146 | - $table = $this->parentMap->getTable(); |
|
| 147 | - |
|
| 148 | - $this->query->whereIn($table . '.' . $this->firstKey, $this->getKeys($entities)); |
|
| 149 | - } |
|
| 150 | - |
|
| 151 | - /** |
|
| 152 | - * Initialize the relation on a set of entities. |
|
| 153 | - * |
|
| 154 | - * @param \Analogue\ORM\Entity[] $entities |
|
| 155 | - * @param string $relation |
|
| 156 | - * @return \Analogue\ORM\Entity[] |
|
| 157 | - */ |
|
| 158 | - public function initRelation(array $entities, $relation) |
|
| 159 | - { |
|
| 160 | - foreach ($entities as $entity) { |
|
| 161 | - $entity->setEntityAttribute($relation, $this->relatedMap->newCollection()); |
|
| 162 | - } |
|
| 163 | - |
|
| 164 | - return $entities; |
|
| 165 | - } |
|
| 166 | - |
|
| 167 | - /** |
|
| 168 | - * Match the eagerly loaded results to their parents. |
|
| 169 | - * |
|
| 170 | - * @param \Analogue\ORM\Entity[] $entities |
|
| 171 | - * @param EntityCollection $results |
|
| 172 | - * @param string $relation |
|
| 173 | - * @return \Analogue\ORM\Entity[] |
|
| 174 | - */ |
|
| 175 | - public function match(array $entities, EntityCollection $results, $relation) |
|
| 176 | - { |
|
| 177 | - $dictionary = $this->buildDictionary($results); |
|
| 178 | - |
|
| 179 | - $relatedKey = $this->relatedMap->getKeyName(); |
|
| 180 | - |
|
| 181 | - $cache = $this->parentMapper->getEntityCache(); |
|
| 182 | - |
|
| 183 | - // Once we have the dictionary we can simply spin through the parent entities to |
|
| 184 | - // link them up with their children using the keyed dictionary to make the |
|
| 185 | - // matching very convenient and easy work. Then we'll just return them. |
|
| 186 | - foreach ($entities as $entity) { |
|
| 187 | - $key = $entity->getEntityAttribute($relatedKey); |
|
| 188 | - |
|
| 189 | - if (isset($dictionary[$key])) { |
|
| 190 | - $value = $this->relatedMap->newCollection($dictionary[$key]); |
|
| 191 | - |
|
| 192 | - $entity->setEntityAttribute($relation, $value); |
|
| 193 | - |
|
| 194 | - $cache->cacheLoadedRelationResult($entity, $relation, $value, $this); |
|
| 195 | - } |
|
| 196 | - } |
|
| 197 | - |
|
| 198 | - return $entities; |
|
| 199 | - } |
|
| 200 | - |
|
| 201 | - /** |
|
| 202 | - * Build model dictionary keyed by the relation's foreign key. |
|
| 203 | - * |
|
| 204 | - * @param EntityCollection $results |
|
| 205 | - * @return array |
|
| 206 | - */ |
|
| 207 | - protected function buildDictionary(EntityCollection $results) |
|
| 208 | - { |
|
| 209 | - $dictionary = []; |
|
| 210 | - |
|
| 211 | - $foreign = $this->firstKey; |
|
| 212 | - |
|
| 213 | - // First we will create a dictionary of entities keyed by the foreign key of the |
|
| 214 | - // relationship as this will allow us to quickly access all of the related |
|
| 215 | - // entities without having to do nested looping which will be quite slow. |
|
| 216 | - foreach ($results as $result) { |
|
| 217 | - $dictionary[$result->{$foreign}][] = $result; |
|
| 218 | - } |
|
| 219 | - |
|
| 220 | - return $dictionary; |
|
| 221 | - } |
|
| 222 | - |
|
| 223 | - /** |
|
| 224 | - * Get the results of the relationship. |
|
| 225 | - * |
|
| 226 | - * @param $relation |
|
| 227 | - * @return EntityCollection |
|
| 228 | - */ |
|
| 229 | - public function getResults($relation) |
|
| 230 | - { |
|
| 231 | - $results = $this->query->get(); |
|
| 232 | - |
|
| 233 | - $this->cacheRelation($results, $relation); |
|
| 234 | - |
|
| 235 | - return $results; |
|
| 236 | - } |
|
| 237 | - |
|
| 238 | - /** |
|
| 239 | - * Execute the query as a "select" statement. |
|
| 240 | - * |
|
| 241 | - * @param array $columns |
|
| 242 | - * @return EntityCollection |
|
| 243 | - */ |
|
| 244 | - public function get($columns = ['*']) |
|
| 245 | - { |
|
| 246 | - // First we'll add the proper select columns onto the query so it is run with |
|
| 247 | - // the proper columns. Then, we will get the results and hydrate out pivot |
|
| 248 | - // entities with the result of those columns as a separate model relation. |
|
| 249 | - $select = $this->getSelectColumns($columns); |
|
| 250 | - |
|
| 251 | - $entities = $this->query->addSelect($select)->getEntities(); |
|
| 252 | - |
|
| 253 | - // If we actually found entities we will also eager load any relationships that |
|
| 254 | - // have been specified as needing to be eager loaded. This will solve the |
|
| 255 | - // n + 1 query problem for the developer and also increase performance. |
|
| 256 | - if (count($entities) > 0) { |
|
| 257 | - $entities = $this->query->eagerLoadRelations($entities); |
|
| 258 | - } |
|
| 259 | - |
|
| 260 | - return $this->relatedMap->newCollection($entities); |
|
| 261 | - } |
|
| 262 | - |
|
| 263 | - /** |
|
| 264 | - * Set the select clause for the relation query. |
|
| 265 | - * |
|
| 266 | - * @param array $columns |
|
| 267 | - * @return BelongsToMany |
|
| 268 | - */ |
|
| 269 | - protected function getSelectColumns(array $columns = ['*']) |
|
| 270 | - { |
|
| 271 | - if ($columns == ['*']) { |
|
| 272 | - $columns = [$this->relatedMap->getTable() . '.*']; |
|
| 273 | - } |
|
| 274 | - |
|
| 275 | - return array_merge($columns, [$this->parentMap->getTable() . '.' . $this->firstKey]); |
|
| 276 | - } |
|
| 277 | - |
|
| 278 | - /** |
|
| 279 | - * Get a paginator for the "select" statement. |
|
| 280 | - * |
|
| 281 | - * @param int $perPage |
|
| 282 | - * @param array $columns |
|
| 283 | - * @return \Illuminate\Pagination\LengthAwarePaginator |
|
| 284 | - */ |
|
| 285 | - public function paginate($perPage = null, $columns = ['*']) |
|
| 286 | - { |
|
| 287 | - $this->query->addSelect($this->getSelectColumns($columns)); |
|
| 288 | - |
|
| 289 | - return $this->query->paginate($perPage, $columns); |
|
| 290 | - } |
|
| 291 | - |
|
| 292 | - /** |
|
| 293 | - * Get the key name of the parent model. |
|
| 294 | - * |
|
| 295 | - * @return string |
|
| 296 | - */ |
|
| 297 | - protected function getQualifiedParentKeyName() |
|
| 298 | - { |
|
| 299 | - return $this->parentMap->getQualifiedKeyName(); |
|
| 300 | - } |
|
| 301 | - |
|
| 302 | - /** |
|
| 303 | - * Get the key for comparing against the parent key in "has" query. |
|
| 304 | - * |
|
| 305 | - * @return string |
|
| 306 | - */ |
|
| 307 | - public function getHasCompareKey() |
|
| 308 | - { |
|
| 309 | - return $this->farParentMap->getQualifiedKeyName(); |
|
| 310 | - } |
|
| 311 | - |
|
| 312 | - /** |
|
| 313 | - * Run synchronization content if needed by the |
|
| 314 | - * relation type. |
|
| 315 | - * |
|
| 316 | - * @param array $actualContent |
|
| 317 | - * @return void |
|
| 318 | - */ |
|
| 319 | - public function sync(array $entities) |
|
| 320 | - { |
|
| 321 | - // N/A |
|
| 322 | - } |
|
| 12 | + /** |
|
| 13 | + * The distance parent Entity instance. |
|
| 14 | + * |
|
| 15 | + * @var \Analogue\ORM\Entity |
|
| 16 | + */ |
|
| 17 | + protected $farParent; |
|
| 18 | + |
|
| 19 | + /** |
|
| 20 | + * The far parent map instance |
|
| 21 | + * |
|
| 22 | + * @var \Analogue\ORM\EntityMap |
|
| 23 | + */ |
|
| 24 | + protected $farParentMap; |
|
| 25 | + |
|
| 26 | + /** |
|
| 27 | + * The near key on the relationship. |
|
| 28 | + * |
|
| 29 | + * @var string |
|
| 30 | + */ |
|
| 31 | + protected $firstKey; |
|
| 32 | + |
|
| 33 | + /** |
|
| 34 | + * The far key on the relationship. |
|
| 35 | + * |
|
| 36 | + * @var string |
|
| 37 | + */ |
|
| 38 | + protected $secondKey; |
|
| 39 | + |
|
| 40 | + /** |
|
| 41 | + * Create a new has many relationship instance. |
|
| 42 | + * |
|
| 43 | + * @param Mapper $mapper |
|
| 44 | + * @param \Analogue\ORM\Mappable $farParent |
|
| 45 | + * @param \Analogue\ORM\EntityMap $parentMap |
|
| 46 | + * @param string $firstKey |
|
| 47 | + * @param string $secondKey |
|
| 48 | + * @throws \Analogue\ORM\Exceptions\MappingException |
|
| 49 | + */ |
|
| 50 | + public function __construct(Mapper $mapper, $farParent, $parentMap, $firstKey, $secondKey) |
|
| 51 | + { |
|
| 52 | + $this->firstKey = $firstKey; |
|
| 53 | + $this->secondKey = $secondKey; |
|
| 54 | + $this->farParent = $farParent; |
|
| 55 | + |
|
| 56 | + $this->farParentMap = $this->relatedMapper->getManager()->mapper($farParent)->getEntityMap(); |
|
| 57 | + |
|
| 58 | + $parentInstance = $this->relatedMapper->getManager()->mapper($parentMap->getClass())->newInstance(); |
|
| 59 | + |
|
| 60 | + parent::__construct($mapper, $parentInstance); |
|
| 61 | + } |
|
| 62 | + |
|
| 63 | + /** |
|
| 64 | + * @param $related |
|
| 65 | + * @return mixed |
|
| 66 | + */ |
|
| 67 | + public function attachTo($related) |
|
| 68 | + { |
|
| 69 | + // N/A |
|
| 70 | + } |
|
| 71 | + |
|
| 72 | + /** |
|
| 73 | + * @param $related |
|
| 74 | + * @return mixed |
|
| 75 | + */ |
|
| 76 | + public function detachFrom($related) |
|
| 77 | + { |
|
| 78 | + // N/A |
|
| 79 | + } |
|
| 80 | + |
|
| 81 | + /** |
|
| 82 | + * Set the base constraints on the relation query. |
|
| 83 | + * |
|
| 84 | + * @return void |
|
| 85 | + */ |
|
| 86 | + public function addConstraints() |
|
| 87 | + { |
|
| 88 | + $parentTable = $this->parentMap->getTable(); |
|
| 89 | + |
|
| 90 | + $this->setJoin(); |
|
| 91 | + |
|
| 92 | + if (static::$constraints) { |
|
| 93 | + $farParentKeyName = $this->farParentMap->getKeyName(); |
|
| 94 | + |
|
| 95 | + $this->query->where( |
|
| 96 | + $parentTable . '.' . $this->firstKey, |
|
| 97 | + '=', |
|
| 98 | + $this->farParent->getEntityAttribute($farParentKeyName) |
|
| 99 | + ); |
|
| 100 | + } |
|
| 101 | + } |
|
| 102 | + |
|
| 103 | + /** |
|
| 104 | + * Add the constraints for a relationship count query. |
|
| 105 | + * |
|
| 106 | + * @param Query $query |
|
| 107 | + * @param Query $parent |
|
| 108 | + * @return Query |
|
| 109 | + */ |
|
| 110 | + public function getRelationCountQuery(Query $query, Query $parent) |
|
| 111 | + { |
|
| 112 | + $parentTable = $this->parentMap->getTable(); |
|
| 113 | + |
|
| 114 | + $this->setJoin($query); |
|
| 115 | + |
|
| 116 | + $query->select(new Expression('count(*)')); |
|
| 117 | + |
|
| 118 | + $key = $this->wrap($parentTable . '.' . $this->firstKey); |
|
| 119 | + |
|
| 120 | + return $query->where($this->getHasCompareKey(), '=', new Expression($key)); |
|
| 121 | + } |
|
| 122 | + |
|
| 123 | + /** |
|
| 124 | + * Set the join clause on the query. |
|
| 125 | + * |
|
| 126 | + * @param null|Query $query |
|
| 127 | + * @return void |
|
| 128 | + */ |
|
| 129 | + protected function setJoin(Query $query = null) |
|
| 130 | + { |
|
| 131 | + $query = $query ?: $this->query; |
|
| 132 | + |
|
| 133 | + $foreignKey = $this->relatedMap->getTable() . '.' . $this->secondKey; |
|
| 134 | + |
|
| 135 | + $query->join($this->parentMap->getTable(), $this->getQualifiedParentKeyName(), '=', $foreignKey); |
|
| 136 | + } |
|
| 137 | + |
|
| 138 | + /** |
|
| 139 | + * Set the constraints for an eager load of the relation. |
|
| 140 | + * |
|
| 141 | + * @param array $entities |
|
| 142 | + * @return void |
|
| 143 | + */ |
|
| 144 | + public function addEagerConstraints(array $entities) |
|
| 145 | + { |
|
| 146 | + $table = $this->parentMap->getTable(); |
|
| 147 | + |
|
| 148 | + $this->query->whereIn($table . '.' . $this->firstKey, $this->getKeys($entities)); |
|
| 149 | + } |
|
| 150 | + |
|
| 151 | + /** |
|
| 152 | + * Initialize the relation on a set of entities. |
|
| 153 | + * |
|
| 154 | + * @param \Analogue\ORM\Entity[] $entities |
|
| 155 | + * @param string $relation |
|
| 156 | + * @return \Analogue\ORM\Entity[] |
|
| 157 | + */ |
|
| 158 | + public function initRelation(array $entities, $relation) |
|
| 159 | + { |
|
| 160 | + foreach ($entities as $entity) { |
|
| 161 | + $entity->setEntityAttribute($relation, $this->relatedMap->newCollection()); |
|
| 162 | + } |
|
| 163 | + |
|
| 164 | + return $entities; |
|
| 165 | + } |
|
| 166 | + |
|
| 167 | + /** |
|
| 168 | + * Match the eagerly loaded results to their parents. |
|
| 169 | + * |
|
| 170 | + * @param \Analogue\ORM\Entity[] $entities |
|
| 171 | + * @param EntityCollection $results |
|
| 172 | + * @param string $relation |
|
| 173 | + * @return \Analogue\ORM\Entity[] |
|
| 174 | + */ |
|
| 175 | + public function match(array $entities, EntityCollection $results, $relation) |
|
| 176 | + { |
|
| 177 | + $dictionary = $this->buildDictionary($results); |
|
| 178 | + |
|
| 179 | + $relatedKey = $this->relatedMap->getKeyName(); |
|
| 180 | + |
|
| 181 | + $cache = $this->parentMapper->getEntityCache(); |
|
| 182 | + |
|
| 183 | + // Once we have the dictionary we can simply spin through the parent entities to |
|
| 184 | + // link them up with their children using the keyed dictionary to make the |
|
| 185 | + // matching very convenient and easy work. Then we'll just return them. |
|
| 186 | + foreach ($entities as $entity) { |
|
| 187 | + $key = $entity->getEntityAttribute($relatedKey); |
|
| 188 | + |
|
| 189 | + if (isset($dictionary[$key])) { |
|
| 190 | + $value = $this->relatedMap->newCollection($dictionary[$key]); |
|
| 191 | + |
|
| 192 | + $entity->setEntityAttribute($relation, $value); |
|
| 193 | + |
|
| 194 | + $cache->cacheLoadedRelationResult($entity, $relation, $value, $this); |
|
| 195 | + } |
|
| 196 | + } |
|
| 197 | + |
|
| 198 | + return $entities; |
|
| 199 | + } |
|
| 200 | + |
|
| 201 | + /** |
|
| 202 | + * Build model dictionary keyed by the relation's foreign key. |
|
| 203 | + * |
|
| 204 | + * @param EntityCollection $results |
|
| 205 | + * @return array |
|
| 206 | + */ |
|
| 207 | + protected function buildDictionary(EntityCollection $results) |
|
| 208 | + { |
|
| 209 | + $dictionary = []; |
|
| 210 | + |
|
| 211 | + $foreign = $this->firstKey; |
|
| 212 | + |
|
| 213 | + // First we will create a dictionary of entities keyed by the foreign key of the |
|
| 214 | + // relationship as this will allow us to quickly access all of the related |
|
| 215 | + // entities without having to do nested looping which will be quite slow. |
|
| 216 | + foreach ($results as $result) { |
|
| 217 | + $dictionary[$result->{$foreign}][] = $result; |
|
| 218 | + } |
|
| 219 | + |
|
| 220 | + return $dictionary; |
|
| 221 | + } |
|
| 222 | + |
|
| 223 | + /** |
|
| 224 | + * Get the results of the relationship. |
|
| 225 | + * |
|
| 226 | + * @param $relation |
|
| 227 | + * @return EntityCollection |
|
| 228 | + */ |
|
| 229 | + public function getResults($relation) |
|
| 230 | + { |
|
| 231 | + $results = $this->query->get(); |
|
| 232 | + |
|
| 233 | + $this->cacheRelation($results, $relation); |
|
| 234 | + |
|
| 235 | + return $results; |
|
| 236 | + } |
|
| 237 | + |
|
| 238 | + /** |
|
| 239 | + * Execute the query as a "select" statement. |
|
| 240 | + * |
|
| 241 | + * @param array $columns |
|
| 242 | + * @return EntityCollection |
|
| 243 | + */ |
|
| 244 | + public function get($columns = ['*']) |
|
| 245 | + { |
|
| 246 | + // First we'll add the proper select columns onto the query so it is run with |
|
| 247 | + // the proper columns. Then, we will get the results and hydrate out pivot |
|
| 248 | + // entities with the result of those columns as a separate model relation. |
|
| 249 | + $select = $this->getSelectColumns($columns); |
|
| 250 | + |
|
| 251 | + $entities = $this->query->addSelect($select)->getEntities(); |
|
| 252 | + |
|
| 253 | + // If we actually found entities we will also eager load any relationships that |
|
| 254 | + // have been specified as needing to be eager loaded. This will solve the |
|
| 255 | + // n + 1 query problem for the developer and also increase performance. |
|
| 256 | + if (count($entities) > 0) { |
|
| 257 | + $entities = $this->query->eagerLoadRelations($entities); |
|
| 258 | + } |
|
| 259 | + |
|
| 260 | + return $this->relatedMap->newCollection($entities); |
|
| 261 | + } |
|
| 262 | + |
|
| 263 | + /** |
|
| 264 | + * Set the select clause for the relation query. |
|
| 265 | + * |
|
| 266 | + * @param array $columns |
|
| 267 | + * @return BelongsToMany |
|
| 268 | + */ |
|
| 269 | + protected function getSelectColumns(array $columns = ['*']) |
|
| 270 | + { |
|
| 271 | + if ($columns == ['*']) { |
|
| 272 | + $columns = [$this->relatedMap->getTable() . '.*']; |
|
| 273 | + } |
|
| 274 | + |
|
| 275 | + return array_merge($columns, [$this->parentMap->getTable() . '.' . $this->firstKey]); |
|
| 276 | + } |
|
| 277 | + |
|
| 278 | + /** |
|
| 279 | + * Get a paginator for the "select" statement. |
|
| 280 | + * |
|
| 281 | + * @param int $perPage |
|
| 282 | + * @param array $columns |
|
| 283 | + * @return \Illuminate\Pagination\LengthAwarePaginator |
|
| 284 | + */ |
|
| 285 | + public function paginate($perPage = null, $columns = ['*']) |
|
| 286 | + { |
|
| 287 | + $this->query->addSelect($this->getSelectColumns($columns)); |
|
| 288 | + |
|
| 289 | + return $this->query->paginate($perPage, $columns); |
|
| 290 | + } |
|
| 291 | + |
|
| 292 | + /** |
|
| 293 | + * Get the key name of the parent model. |
|
| 294 | + * |
|
| 295 | + * @return string |
|
| 296 | + */ |
|
| 297 | + protected function getQualifiedParentKeyName() |
|
| 298 | + { |
|
| 299 | + return $this->parentMap->getQualifiedKeyName(); |
|
| 300 | + } |
|
| 301 | + |
|
| 302 | + /** |
|
| 303 | + * Get the key for comparing against the parent key in "has" query. |
|
| 304 | + * |
|
| 305 | + * @return string |
|
| 306 | + */ |
|
| 307 | + public function getHasCompareKey() |
|
| 308 | + { |
|
| 309 | + return $this->farParentMap->getQualifiedKeyName(); |
|
| 310 | + } |
|
| 311 | + |
|
| 312 | + /** |
|
| 313 | + * Run synchronization content if needed by the |
|
| 314 | + * relation type. |
|
| 315 | + * |
|
| 316 | + * @param array $actualContent |
|
| 317 | + * @return void |
|
| 318 | + */ |
|
| 319 | + public function sync(array $entities) |
|
| 320 | + { |
|
| 321 | + // N/A |
|
| 322 | + } |
|
| 323 | 323 | } |