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<?php |
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namespace NovaThinKit\Nova\Filters; |
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use Illuminate\Database\Eloquent\Builder; |
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use Laravel\Nova\Filters\BooleanFilter; |
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use Laravel\Nova\Http\Requests\NovaRequest; |
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class EmptyFieldFilter extends BooleanFilter |
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{ |
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protected string $columnName; |
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public function __construct(string $columnName, string $name = null) |
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{ |
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$this->setColumn($columnName); |
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if ($name) { |
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$this->setName($name); |
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} |
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} |
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public function apply(NovaRequest $request, $query, $value) |
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{ |
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if (($value['empty'] ?? false) && ($value['filled'] ?? false)) { |
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return $query; |
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} |
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$relations = explode('.', $this->columnName); |
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$columnName = array_pop($relations); |
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$callback = function ($query) use ($value, $columnName) { |
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if ($value['empty']) { |
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$query->whereNull($columnName) |
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->orWhere($columnName, ''); |
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} elseif ($value['filled']) { |
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$query->whereNotNull($columnName) |
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->where($columnName, '<>', ''); |
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} |
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}; |
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$this->recursiveCallback($query, $relations, $callback); |
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return $query; |
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} |
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public function options(NovaRequest $request): array |
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{ |
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return [ |
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trans('nova-thinkit::filter.nullable-field.empty') => 'empty', |
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trans('nova-thinkit::filter.nullable-field.filled') => 'filled', |
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]; |
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} |
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public function setName(string $name): self |
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{ |
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$this->name = $name; |
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return $this; |
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} |
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public function setColumn(string $columnName): self |
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{ |
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$this->columnName = $columnName; |
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return $this; |
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} |
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protected function recursiveCallback(Builder $query, array $relations, \Closure $callback): void |
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{ |
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if (count($relations)) { |
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$relation = array_shift($relations); |
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$query->whereHas($relation, fn ($q) => $this->recursiveCallback($q, $relations, $callback)) |
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->orDoesntHave($relation); |
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} else { |
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$callback($query); |
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} |
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} |
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} |
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dev-think-one /
nova-thinkit
