1 | <?php |
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2 | namespace DNADesign\Elemental\GraphQL; |
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3 | |||
4 | use DNADesign\Elemental\Models\BaseElement; |
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5 | use DNADesign\Elemental\Services\ReorderElements; |
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6 | use GraphQL\Type\Definition\ResolveInfo; |
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7 | use GraphQL\Type\Definition\Type; |
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8 | use SilverStripe\Core\Convert; |
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9 | use SilverStripe\Core\Injector\Injector; |
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10 | use SilverStripe\GraphQL\MutationCreator; |
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11 | use SilverStripe\GraphQL\OperationResolver; |
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12 | use SilverStripe\GraphQL\Scaffolding\StaticSchema; |
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13 | use SilverStripe\ORM\DataObject; |
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14 | use SilverStripe\ORM\Queries\SQLUpdate; |
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15 | |||
16 | /** |
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17 | * Given a source block ID and the ID of the block to reorder the source block after, update all affected sort |
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18 | * orders for the block and its siblings. Only the source block will have a new version written, all siblings |
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19 | * will be updated underneath the ORM to avoid this. |
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20 | */ |
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21 | class SortBlockMutationCreator extends MutationCreator implements OperationResolver |
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22 | { |
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23 | public function attributes() |
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24 | { |
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25 | return [ |
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26 | 'name' => 'sortBlock', |
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27 | 'description' => 'Changes the sort position of an element' |
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28 | ]; |
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29 | } |
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30 | |||
31 | public function type() |
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32 | { |
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33 | return $this->manager->getType(StaticSchema::inst()->typeNameForDataObject(BaseElement::class)); |
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34 | } |
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35 | |||
36 | public function args() |
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37 | { |
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38 | return [ |
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39 | 'ID' => ['type' => Type::nonNull(Type::id())], |
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40 | 'AfterBlockID' => ['type' => Type::nonNull(Type::id())], |
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41 | ]; |
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42 | } |
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43 | |||
44 | public function resolve($object, array $args, $context, ResolveInfo $info) |
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45 | { |
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46 | $element = BaseElement::get()->byID($args['ID']); |
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47 | |||
48 | if (!$element) { |
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49 | throw new InvalidArgumentException(sprintf( |
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50 | '%s#%s not found', |
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51 | BaseElement::class, |
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52 | $args['ID'] |
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53 | )); |
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54 | } |
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55 | |||
56 | if (!$element->canEdit($context['currentUser'])) { |
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57 | throw new InvalidArgumentException( |
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58 | 'Changing the sort order of blocks is not allowed for the current user' |
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59 | ); |
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60 | } |
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61 | |||
62 | $reorderingService = Injector::inst()->create(ReorderElements::class, $element); |
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63 | return $reorderingService->reorder($args['AfterBlockID']); |
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64 | } |
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65 | } |
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66 |