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<?php |
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namespace Blasttech\EloquentRelatedPlus; |
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use Illuminate\Database\Eloquent\Builder; |
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use Illuminate\Database\Eloquent\Model; |
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/** |
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* Trait RelatedPlusTrait |
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* |
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* @property array order_fields |
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* @property array order_defaults |
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* @property array order_relations |
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* @property array order_with |
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* @property array search_fields |
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* @property string connection |
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*/ |
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trait CustomOrderTrait |
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{ |
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/** |
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* Set the model order |
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* |
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* @param Builder $query |
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* @param string $column |
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* @param string $direction |
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* @return Builder |
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*/ |
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public function scopeSetCustomOrder(Builder $query, $column, $direction) |
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{ |
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if (isset($this->order_defaults)) { |
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$column = $this->setColumn($column); |
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$direction = $this->setDirection($direction); |
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} |
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return $this->setOrder($query, $column, $direction); |
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} |
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/** |
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* Override column if provided column not valid |
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* |
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* @param string $column |
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* @return string |
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*/ |
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private function setColumn($column) |
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{ |
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// If $column not in order_fields list, use default |
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if ($column == '' || !isset($this->order_fields[$column])) { |
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$column = $this->order_defaults['field']; |
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} |
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return $column; |
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} |
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/** |
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* Override direction if provided direction not valid |
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* |
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* @param string $direction |
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* @return string |
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*/ |
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private function setDirection($direction) |
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{ |
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// If $direction not asc or desc, use default |
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if ($direction == '' || !in_array(strtoupper($direction), ['ASC', 'DESC'])) { |
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$direction = $this->order_defaults['dir']; |
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} |
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return $direction; |
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} |
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/** |
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* Set order based on order_fields |
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* |
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* @param Builder $query |
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* @param string $column |
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* @param string $direction |
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* @return Builder |
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*/ |
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private function setOrder($query, $column, $direction) |
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{ |
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if (!is_array($this->order_fields[$column])) { |
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$query->orderByCheckModel($this->order_fields[$column], $direction); |
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} else { |
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foreach ($this->order_fields[$column] as $dbField) { |
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$query->orderByCheckModel($dbField, $direction); |
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} |
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} |
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return $query; |
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} |
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/** |
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* Check if column being sorted by is from a related model |
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* |
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* @param Builder $query |
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* @param string $column |
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* @param string $direction |
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* @return Builder |
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*/ |
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public function scopeOrderByCheckModel(Builder $query, $column, $direction) |
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{ |
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/** @var Model $query */ |
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$query->orderBy(DB::raw($column), $direction); |
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$periodPos = strpos($column, '.'); |
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if (isset($this->order_relations) && ($periodPos !== false || isset($this->order_relations[$column]))) { |
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$table = ($periodPos !== false ? substr($column, 0, $periodPos) : $column); |
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$query = $this->joinRelatedTable($query, $table); |
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} |
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return $query; |
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} |
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} |
This check looks for methods that are used by a trait but not required by it.
To illustrate, let’s look at the following code example
The trait
Idable
provides a methodequalsId
that in turn relies on the methodgetId()
. If this method does not exist on a class mixing in this trait, the method will fail.Adding the
getId()
as an abstract method to the trait will make sure it is available.