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<?php |
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namespace Staudenmeir\EloquentJsonRelations\Relations; |
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use Illuminate\Database\Eloquent\Collection; |
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use Illuminate\Database\Eloquent\Model; |
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use Illuminate\Support\Arr; |
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use Illuminate\Support\Collection as BaseCollection; |
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trait InteractsWithPivotRecords |
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{ |
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/** |
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* Attach models to the relationship. |
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* |
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* @param mixed $ids |
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* @return \Illuminate\Database\Eloquent\Model |
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*/ |
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public function attach($ids) |
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{ |
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[$records, $others] = $this->decodeRecords(); |
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$records = $this->formatIds($this->parseIds($ids)) + $records; |
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$this->child->{$this->path} = $this->encodeRecords($records, $others); |
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return $this->child; |
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} |
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/** |
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* Detach models from the relationship. |
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* |
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* @param mixed $ids |
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* @return \Illuminate\Database\Eloquent\Model |
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*/ |
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public function detach($ids = null) |
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{ |
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[$records, $others] = $this->decodeRecords(); |
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if (!is_null($ids)) { |
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$records = array_diff_key( |
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$records, |
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array_flip($this->parseIds($ids)) |
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); |
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} else { |
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$records = []; |
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} |
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$this->child->{$this->path} = $this->encodeRecords($records, $others); |
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return $this->child; |
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} |
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/** |
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* Sync the relationship with a list of models. |
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* |
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* @param mixed $ids |
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* @return \Illuminate\Database\Eloquent\Model |
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*/ |
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public function sync($ids) |
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{ |
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[, $others] = $this->decodeRecords(); |
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$records = $this->formatIds($this->parseIds($ids)); |
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$this->child->{$this->path} = $this->encodeRecords($records, $others); |
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return $this->child; |
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} |
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/** |
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* Toggle models from the relationship. |
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* |
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* @param mixed $ids |
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* @return \Illuminate\Database\Eloquent\Model |
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*/ |
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public function toggle($ids) |
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{ |
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[$records, $others] = $this->decodeRecords(); |
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$ids = $this->formatIds($this->parseIds($ids)); |
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$records = array_diff_key( |
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$ids + $records, |
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array_intersect_key($records, $ids) |
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); |
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$this->child->{$this->path} = $this->encodeRecords($records, $others); |
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return $this->child; |
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} |
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/** |
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* Decode the records on the child model. |
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* |
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* @return array |
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*/ |
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protected function decodeRecords() |
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{ |
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$records = []; |
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$others = []; |
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$key = $this->key ? str_replace('->', '.', $this->key) : $this->key; |
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foreach ((array) $this->child->{$this->path} as $record) { |
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if (!is_array($record)) { |
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$records[$record] = []; |
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continue; |
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} |
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$foreignKey = Arr::get($record, $key); |
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if (!is_null($foreignKey)) { |
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$records[$foreignKey] = $record; |
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} else { |
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$others[] = $record; |
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} |
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} |
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return [$records, $others]; |
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} |
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/** |
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* Encode the records for the child model. |
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* |
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* @param array $records |
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* @param array $others |
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* @return array |
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*/ |
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protected function encodeRecords(array $records, array $others) |
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{ |
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if (!$this->key) { |
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return array_keys($records); |
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} |
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$key = str_replace('->', '.', $this->key); |
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foreach ($records as $id => &$attributes) { |
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Arr::set($attributes, $key, $id); |
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} |
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return array_merge( |
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array_values($records), |
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$others |
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); |
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} |
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/** |
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* Get all of the IDs from the given mixed value. |
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* |
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* @param mixed $value |
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* @return array |
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*/ |
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protected function parseIds($value) |
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{ |
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if ($value instanceof Model) { |
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return [$value->{$this->ownerKey}]; |
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} |
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if ($value instanceof Collection) { |
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return $value->pluck($this->ownerKey)->all(); |
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} |
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if ($value instanceof BaseCollection) { |
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return $value->toArray(); |
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} |
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return (array) $value; |
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} |
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/** |
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* Format the parsed IDs. |
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* |
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* @param array $ids |
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* @return array |
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*/ |
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protected function formatIds(array $ids) |
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{ |
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return (new BaseCollection($ids))->mapWithKeys(function ($attributes, $id) { |
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if (!is_array($attributes)) { |
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[$id, $attributes] = [$attributes, []]; |
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} |
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return [$id => $attributes]; |
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})->all(); |
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} |
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} |
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staudenmeir /
eloquent-json-relations
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