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<?php |
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namespace Backpack\CRUD\app\Library\Components\Attributes; |
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use Backpack\CRUD\app\Library\Components\Interfaces\SmartAttributeInterface; |
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use Backpack\CRUD\app\Library\Components\Interfaces\SmartCollectionInterface; |
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use Illuminate\Support\Str; |
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class Entity extends BaseAttribute implements SmartAttributeInterface |
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{ |
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public static function getDefault(SmartCollectionInterface $attributes) |
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{ |
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$model = $attributes->hasAttribute('baseModel') ? (new $attributes->getAttributeValue('baseModel')) : app('crud')->model; |
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$fieldName = $attributes->getAttributeValue('name'); |
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//if the name is dot notation we are sure it's a relationship |
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if (strpos($fieldName, '.') !== false) { |
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$possibleMethodName = Str::of($fieldName)->before('.'); |
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return self::modelMethodIsRelationship($model, $possibleMethodName) ? $fieldName : false; |
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} |
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// if there's a method on the model with this name |
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if (method_exists($model, $fieldName)) { |
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// check model method for possibility of being a relationship |
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return self::modelMethodIsRelationship($model, $fieldName); |
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} |
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// if the name ends with _id and that method exists, |
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// we can probably use it as an entity |
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if (Str::endsWith($fieldName, '_id')) { |
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$possibleMethodName = Str::replaceLast('_id', '', $fieldName); |
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if (method_exists($model, $possibleMethodName)) { |
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// check model method for possibility of being a relationship |
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return self::modelMethodIsRelationship($model, $possibleMethodName); |
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} |
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} |
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return false; |
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} |
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public static function getValidationRules(SmartCollectionInterface $attributes): array |
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{ |
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return ['required']; |
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} |
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public static function getAttributeName(): string |
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{ |
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return 'entity'; |
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} |
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/** |
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* Checks the properties of the provided method to better verify if it could be a relation. |
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* Case the method is not public, is not a relation. |
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* Case the return type is Attribute, or extends Attribute is not a relation method. |
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* If the return type extends the Relation class is for sure a relation |
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* Otherwise we just assume it's a relation. |
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* |
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* DEV NOTE: In future versions we will return `false` when no return type is set and make the return type mandatory for relationships. |
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* This function should be refactored to only check if $returnType is a subclass of Illuminate\Database\Eloquent\Relations\Relation. |
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* |
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* @param $model |
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* @param $method |
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* @return bool|string |
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*/ |
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private static function modelMethodIsRelationship($model, $method) |
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{ |
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$methodReflection = new \ReflectionMethod($model, $method); |
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// relationship methods function does not have parameters |
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if ($methodReflection->getNumberOfParameters() > 0) { |
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return false; |
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} |
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// relationships are always public methods. |
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if (! $methodReflection->isPublic()) { |
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return false; |
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} |
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$returnType = $methodReflection->getReturnType(); |
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if ($returnType) { |
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$returnType = $returnType->getName(); |
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if (is_a($returnType, 'Illuminate\Database\Eloquent\Casts\Attribute', true)) { |
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return false; |
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} |
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if (is_a($returnType, 'Illuminate\Database\Eloquent\Relations\Relation', true)) { |
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return $method; |
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} |
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} |
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return $method; |
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} |
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} |
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Laravel-Backpack /
CRUD
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