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<?php |
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declare(strict_types=1); |
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namespace Thinktomorrow\Chief\Relations; |
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use Illuminate\Database\Eloquent\Collection; |
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use Thinktomorrow\Chief\PageBuilder\PresentSections; |
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trait ActingAsParent |
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{ |
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protected $loadedChildRelations; |
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public function children(): Collection |
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{ |
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if ($this->areChildRelationsLoaded()) { |
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return $this->loadedChildRelations; |
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} |
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return $this->loadedChildRelations = $this->freshChildren(); |
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} |
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public function freshChildren(): Collection |
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{ |
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$this->loadedChildRelations = null; |
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return new Collection(Relation::children($this->getMorphClass(), $this->getKey())->all()); |
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} |
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public function adoptChild(ActsAsChild $child, array $attributes = []) |
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{ |
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// Reset cached relation |
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$this->loadedChildRelations = null; |
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$this->attachChild($child->getMorphClass(), $child->getKey(), $attributes); |
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} |
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public function rejectChild(ActsAsChild $child) |
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{ |
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// Reset cached relation |
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$this->loadedChildRelations = null; |
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$this->detachChild($child->getMorphClass(), $child->getKey()); |
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} |
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public function renderChildren(): string |
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{ |
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return $this->presentChildren()->implode(''); |
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} |
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public function presentChildren(): \Illuminate\Support\Collection |
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{ |
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return (new PresentSections())($this, $this->children()); |
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} |
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public function relationWithChild(ActsAsChild $child): Relation |
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{ |
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return Relation::query() |
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->where('parent_type', $this->getMorphClass()) |
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->where('parent_id', $this->getKey()) |
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->where('child_type', $child->getMorphClass()) |
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->where('child_id', $child->getKey()) |
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->first(); |
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} |
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public function sortChild(ActsAsChild $child, $sort = 0) |
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{ |
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$this->loadedChildRelations = null; |
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Relation::query() |
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->where('parent_type', $this->getMorphClass()) |
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->where('parent_id', $this->getKey()) |
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->where('child_type', $child->getMorphClass()) |
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->where('child_id', $child->getKey()) |
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->update(['sort' => $sort]); |
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} |
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public function detachAllChildRelations() |
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{ |
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Relation::deleteAllChildRelationsOf($this->getMorphClass(), $this->getKey()); |
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} |
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private function attachChild($child_type, $child_id, array $attributes = []) |
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{ |
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Relation::firstOrCreate([ |
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'parent_type' => $this->getMorphClass(), |
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'parent_id' => $this->getKey(), |
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'child_type' => $child_type, |
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'child_id' => $child_id, |
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], $attributes); |
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} |
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private function detachChild($child_type, $child_id) |
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{ |
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Relation::query() |
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->where('parent_type', $this->getMorphClass()) |
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->where('parent_id', $this->getKey()) |
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->where('child_type', $child_type) |
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->where('child_id', $child_id) |
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->delete(); |
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} |
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private function areChildRelationsLoaded(): bool |
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{ |
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return !is_null($this->loadedChildRelations); |
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} |
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public function breakChildRelationCache() |
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{ |
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$this->loadedChildRelations = null; |
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} |
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} |
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