| Total Complexity | 40 |
| Total Lines | 368 |
| Duplicated Lines | 0 % |
| Changes | 4 | ||
| Bugs | 0 | Features | 0 |
Complex classes like HasManyJson 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 HasManyJson, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 16 | class HasManyJson extends HasMany implements ConcatenableRelation |
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| 17 | { |
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| 18 | use IsConcatenableHasManyJsonRelation; |
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| 19 | use IsJsonRelation; |
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| 20 | use SupportsHasManyJsonCompositeKeys; |
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| 21 | |||
| 22 | /** |
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| 23 | * The foreign key of the parent model. |
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| 24 | * |
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| 25 | * @var string|array |
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| 26 | */ |
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| 27 | protected $foreignKey; |
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| 28 | |||
| 29 | /** |
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| 30 | * The local key of the parent model. |
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| 31 | * |
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| 32 | * @var string|array |
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| 33 | */ |
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| 34 | protected $localKey; |
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| 35 | |||
| 36 | /** |
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| 37 | * Create a new has many JSON relationship instance. |
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| 38 | * |
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| 39 | * @param \Illuminate\Database\Eloquent\Builder $query |
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| 40 | * @param \Illuminate\Database\Eloquent\Model $parent |
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| 41 | * @param string $foreignKey |
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| 42 | * @param string $localKey |
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| 43 | * @return void |
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| 44 | */ |
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| 45 | public function __construct(Builder $query, Model $parent, $foreignKey, $localKey) |
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| 46 | { |
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| 47 | $segments = is_array($foreignKey) |
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| 48 | ? explode('[]->', $foreignKey[0]) |
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| 49 | : explode('[]->', $foreignKey); |
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| 50 | |||
| 51 | $this->path = $segments[0]; |
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| 52 | $this->key = $segments[1] ?? null; |
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| 53 | |||
| 54 | parent::__construct($query, $parent, $foreignKey, $localKey); |
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| 55 | } |
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| 56 | |||
| 57 | /** |
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| 58 | * Get the results of the relationship. |
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| 59 | * |
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| 60 | * @return mixed |
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| 61 | */ |
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| 62 | public function getResults() |
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| 63 | { |
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| 64 | return !is_null($this->getParentKey()) |
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| 65 | ? $this->get() |
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| 66 | : $this->related->newCollection(); |
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| 67 | } |
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| 68 | |||
| 69 | /** |
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| 70 | * Execute the query as a "select" statement. |
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| 71 | * |
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| 72 | * @param array $columns |
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| 73 | * @return \Illuminate\Database\Eloquent\Collection |
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| 74 | */ |
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| 75 | public function get($columns = ['*']) |
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| 76 | { |
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| 77 | $models = parent::get($columns); |
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| 78 | |||
| 79 | $localKey = $this->hasCompositeKey() ? $this->localKey[0] : $this->localKey; |
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| 80 | |||
| 81 | if ($this->key && !is_null($this->parent->$localKey)) { |
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| 82 | $this->hydratePivotRelation( |
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| 83 | $models, |
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| 84 | $this->parent, |
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| 85 | fn (Model $model) => $model->{$this->getPathName()} |
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| 86 | ); |
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| 87 | } |
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| 88 | |||
| 89 | return $models; |
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| 90 | } |
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| 91 | |||
| 92 | /** |
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| 93 | * Set the base constraints on the relation query. |
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| 94 | * |
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| 95 | * @return void |
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| 96 | */ |
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| 97 | public function addConstraints() |
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| 98 | { |
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| 99 | if (static::$constraints) { |
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| 100 | $parentKey = $this->getParentKey(); |
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| 101 | |||
| 102 | $this->whereJsonContainsOrMemberOf( |
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| 103 | $this->query, |
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| 104 | $this->path, |
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| 105 | $parentKey, |
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| 106 | fn ($parentKey) => $this->parentKeyToArray($parentKey) |
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| 107 | ); |
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| 108 | |||
| 109 | if ($this->hasCompositeKey()) { |
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| 110 | $this->addConstraintsWithCompositeKey(); |
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| 111 | } |
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| 112 | } |
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| 113 | } |
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| 114 | |||
| 115 | /** |
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| 116 | * Set the constraints for an eager load of the relation. |
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| 117 | * |
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| 118 | * @param array $models |
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| 119 | * @return void |
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| 120 | */ |
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| 121 | public function addEagerConstraints(array $models) |
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| 122 | { |
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| 123 | if ($this->hasCompositeKey()) { |
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| 124 | $this->addEagerConstraintsWithCompositeKey($models); |
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| 125 | |||
| 126 | return; |
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| 127 | } |
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| 128 | |||
| 129 | $parentKeys = $this->getKeys($models, $this->localKey); |
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| 130 | |||
| 131 | $this->query->where(function (Builder $query) use ($parentKeys) { |
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| 132 | foreach ($parentKeys as $parentKey) { |
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| 133 | $this->whereJsonContainsOrMemberOf( |
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| 134 | $query, |
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| 135 | $this->path, |
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| 136 | $parentKey, |
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| 137 | fn ($parentKey) => $this->parentKeyToArray($parentKey), |
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| 138 | 'or' |
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| 139 | ); |
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| 140 | } |
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| 141 | }); |
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| 142 | } |
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| 143 | |||
| 144 | /** |
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| 145 | * Embed a parent key in a nested array. |
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| 146 | * |
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| 147 | * @param mixed $parentKey |
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| 148 | * @return array |
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| 149 | */ |
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| 150 | protected function parentKeyToArray($parentKey) |
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| 151 | { |
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| 152 | $keys = explode('->', $this->key); |
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| 153 | |||
| 154 | foreach (array_reverse($keys) as $key) { |
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| 155 | $parentKey = [$key => $parentKey]; |
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| 156 | } |
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| 157 | |||
| 158 | return [$parentKey]; |
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| 159 | } |
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| 160 | |||
| 161 | /** |
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| 162 | * Match the eagerly loaded results to their many parents. |
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| 163 | * |
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| 164 | * @param array $models |
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| 165 | * @param \Illuminate\Database\Eloquent\Collection $results |
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| 166 | * @param string $relation |
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| 167 | * @param string $type |
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| 168 | * @return array |
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| 169 | */ |
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| 170 | protected function matchOneOrMany(array $models, Collection $results, $relation, $type) |
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| 171 | { |
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| 172 | if ($this->hasCompositeKey()) { |
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| 173 | $this->matchWithCompositeKey($models, $results, $relation, 'many'); |
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| 174 | } else { |
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| 175 | parent::matchOneOrMany($models, $results, $relation, $type); |
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| 176 | } |
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| 177 | |||
| 178 | if ($this->key) { |
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| 179 | foreach ($models as $model) { |
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| 180 | $this->hydratePivotRelation( |
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| 181 | $model->$relation, |
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| 182 | $model, |
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| 183 | fn (Model $model) => $model->{$this->getPathName()} |
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| 184 | ); |
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| 185 | } |
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| 186 | } |
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| 187 | |||
| 188 | return $models; |
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| 189 | } |
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| 190 | |||
| 191 | /** |
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| 192 | * Build model dictionary keyed by the relation's foreign key. |
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| 193 | * |
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| 194 | * @param \Illuminate\Database\Eloquent\Collection $results |
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| 195 | * @return array |
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| 196 | */ |
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| 197 | protected function buildDictionary(Collection $results) |
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| 198 | { |
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| 199 | $foreign = $this->getForeignKeyName(); |
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| 200 | |||
| 201 | $dictionary = []; |
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| 202 | |||
| 203 | foreach ($results as $result) { |
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| 204 | foreach ($result->{$foreign} as $value) { |
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| 205 | $dictionary[$value][] = $result; |
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| 206 | } |
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| 207 | } |
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| 208 | |||
| 209 | return $dictionary; |
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| 210 | } |
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| 211 | |||
| 212 | /** |
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| 213 | * Set the foreign ID for creating a related model. |
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| 214 | * |
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| 215 | * @param \Illuminate\Database\Eloquent\Model $model |
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| 216 | * @return void |
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| 217 | */ |
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| 218 | protected function setForeignAttributesForCreate(Model $model) |
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| 219 | { |
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| 220 | $foreignKey = explode('.', $this->foreignKey)[1]; |
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| 221 | |||
| 222 | /** @var \Staudenmeir\EloquentJsonRelations\Relations\BelongsToJson $relation */ |
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| 223 | $relation = $model->belongsToJson(get_class($this->parent), $foreignKey, $this->localKey); |
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| 224 | |||
| 225 | $relation->attach($this->getParentKey()); |
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| 226 | } |
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| 227 | |||
| 228 | /** |
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| 229 | * Add the constraints for a relationship query. |
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| 230 | * |
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| 231 | * @param \Illuminate\Database\Eloquent\Builder $query |
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| 232 | * @param \Illuminate\Database\Eloquent\Builder $parentQuery |
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| 233 | * @param array|mixed $columns |
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| 234 | * @return \Illuminate\Database\Eloquent\Builder |
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| 235 | */ |
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| 236 | public function getRelationExistenceQuery(Builder $query, Builder $parentQuery, $columns = ['*']) |
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| 237 | { |
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| 238 | if ($query->getQuery()->from == $parentQuery->getQuery()->from) { |
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| 239 | return $this->getRelationExistenceQueryForSelfRelation($query, $parentQuery, $columns); |
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| 240 | } |
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| 241 | |||
| 242 | [$sql, $bindings] = $this->relationExistenceQueryParentKey($query); |
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| 243 | |||
| 244 | $query->addBinding($bindings); |
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| 245 | |||
| 246 | $this->whereJsonContainsOrMemberOf( |
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| 247 | $query, |
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| 248 | $this->getQualifiedPath(), |
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| 249 | $query->getQuery()->connection->raw($sql) |
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| 250 | ); |
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| 251 | |||
| 252 | if ($this->hasCompositeKey()) { |
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| 253 | $this->getRelationExistenceQueryWithCompositeKey($query); |
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| 254 | } |
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| 255 | |||
| 256 | return $query->select($columns); |
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| 257 | } |
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| 258 | |||
| 259 | /** |
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| 260 | * Add the constraints for a relationship query on the same table. |
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| 261 | * |
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| 262 | * @param \Illuminate\Database\Eloquent\Builder $query |
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| 263 | * @param \Illuminate\Database\Eloquent\Builder $parentQuery |
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| 264 | * @param array|mixed $columns |
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| 265 | * @return \Illuminate\Database\Eloquent\Builder |
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| 266 | */ |
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| 267 | public function getRelationExistenceQueryForSelfRelation(Builder $query, Builder $parentQuery, $columns = ['*']) |
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| 268 | { |
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| 269 | $query->from($query->getModel()->getTable() . ' as ' . $hash = $this->getRelationCountHash()); |
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| 270 | |||
| 271 | $query->getModel()->setTable($hash); |
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| 272 | |||
| 273 | [$sql, $bindings] = $this->relationExistenceQueryParentKey($query); |
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| 274 | |||
| 275 | $query->addBinding($bindings); |
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| 276 | |||
| 277 | $this->whereJsonContainsOrMemberOf( |
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| 278 | $query, |
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| 279 | $hash . '.' . $this->getPathName(), |
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| 280 | $query->getQuery()->connection->raw($sql) |
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| 281 | ); |
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| 282 | |||
| 283 | return $query->select($columns); |
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| 284 | } |
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| 285 | |||
| 286 | /** |
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| 287 | * Get the parent key for the relationship query. |
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| 288 | * |
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| 289 | * @param \Illuminate\Database\Eloquent\Builder $query |
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| 290 | * @return array |
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| 291 | */ |
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| 292 | protected function relationExistenceQueryParentKey(Builder $query): array |
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| 293 | { |
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| 294 | $parentKey = $this->getQualifiedParentKeyName(); |
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| 295 | |||
| 296 | $grammar = $this->getJsonGrammar($query); |
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| 297 | $connection = $query->getConnection(); |
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| 298 | |||
| 299 | if ($grammar->supportsMemberOf($connection)) { |
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| 300 | $sql = $grammar->wrap($parentKey); |
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| 301 | |||
| 302 | $bindings = []; |
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| 303 | } else { |
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| 304 | if ($this->key) { |
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| 305 | $keys = explode('->', $this->key); |
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| 306 | |||
| 307 | $sql = $this->getJsonGrammar($query)->compileJsonObject($parentKey, count($keys)); |
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| 308 | |||
| 309 | $bindings = $keys; |
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| 310 | } else { |
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| 311 | $sql = $this->getJsonGrammar($query)->compileJsonArray($parentKey); |
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| 312 | |||
| 313 | $bindings = []; |
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| 314 | } |
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| 315 | } |
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| 316 | |||
| 317 | return [$sql, $bindings]; |
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| 318 | } |
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| 319 | |||
| 320 | /** |
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| 321 | * Get the pivot attributes from a model. |
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| 322 | * |
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| 323 | * @param \Illuminate\Database\Eloquent\Model $model |
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| 324 | * @param \Illuminate\Database\Eloquent\Model $parent |
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| 325 | * @param array $records |
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| 326 | * @return array |
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| 327 | */ |
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| 328 | public function pivotAttributes(Model $model, Model $parent, array $records) |
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| 329 | { |
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| 330 | $key = str_replace('->', '.', $this->key); |
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| 331 | |||
| 332 | $localKey = $this->hasCompositeKey() ? $this->localKey[0] : $this->localKey; |
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| 333 | |||
| 334 | $record = (new BaseCollection($records)) |
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| 335 | ->filter(function ($value) use ($key, $localKey, $parent) { |
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| 336 | return Arr::get($value, $key) == $parent->$localKey; |
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| 337 | })->first(); |
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| 338 | |||
| 339 | return Arr::except($record, $key); |
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| 340 | } |
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| 341 | |||
| 342 | /** |
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| 343 | * Get the plain path name. |
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| 344 | * |
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| 345 | * @return string |
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| 346 | */ |
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| 347 | public function getPathName() |
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| 350 | } |
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| 351 | |||
| 352 | /** |
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| 353 | * Get the key value of the parent's local key. |
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| 354 | * |
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| 355 | * @return mixed |
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| 356 | */ |
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| 357 | public function getParentKey() |
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| 358 | { |
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| 359 | $localKey = $this->hasCompositeKey() ? $this->localKey[0] : $this->localKey; |
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| 360 | |||
| 361 | return $this->parent->getAttribute($localKey); |
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| 362 | } |
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| 363 | |||
| 364 | /** |
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| 365 | * Get the fully qualified parent key name. |
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| 366 | * |
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| 367 | * @return string |
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| 368 | */ |
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| 369 | public function getQualifiedParentKeyName() |
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| 370 | { |
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| 371 | $localKey = $this->hasCompositeKey() ? $this->localKey[0] : $this->localKey; |
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| 372 | |||
| 373 | return $this->parent->qualifyColumn($localKey); |
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| 374 | } |
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| 375 | |||
| 376 | /** |
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| 377 | * Get the foreign key for the relationship. |
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| 378 | * |
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| 379 | * @return string |
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| 380 | */ |
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| 381 | public function getQualifiedForeignKeyName() |
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| 384 | } |
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| 385 | } |
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| 386 |