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<?php |
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namespace BBSLab\NovaTranslation\Models\Concerns; |
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use BBSLab\NovaTranslation\Models\Relations\BelongsToMany; |
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use Illuminate\Database\Eloquent\Builder; |
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use Illuminate\Database\Eloquent\Concerns\HasRelationships; |
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use Illuminate\Database\Eloquent\Model; |
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trait HasTranslatableRelationships |
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{ |
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use HasRelationships; |
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/** |
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* Define a many-to-many relationship. |
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* |
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* @param string $related |
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* @param string|null $table |
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* @param string|null $foreignPivotKey |
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* @param string|null $relatedPivotKey |
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* @param string|null $parentKey |
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* @param string|null $relatedKey |
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* @param string|null $relation |
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* @return \BBSLab\NovaTranslation\Models\Relations\BelongsToMany |
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*/ |
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public function belongsToMany($related, $table = null, $foreignPivotKey = null, $relatedPivotKey = null, |
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$parentKey = null, $relatedKey = null, $relation = null) |
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{ |
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// If no relationship name was passed, we will pull backtraces to get the |
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// name of the calling function. We will use that function name as the |
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// title of this relation since that is a great convention to apply. |
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if (is_null($relation)) { |
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$relation = $this->guessBelongsToManyRelation(); |
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} |
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// First, we'll need to determine the foreign key and "other key" for the |
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// relationship. Once we have determined the keys we'll make the query |
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// instances as well as the relationship instances we need for this. |
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$instance = $this->newRelatedInstance($related); |
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$foreignPivotKey = $foreignPivotKey ?: $this->getForeignKey(); |
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$relatedPivotKey = $relatedPivotKey ?: $instance->getForeignKey(); |
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// If no table name was provided, we can guess it by concatenating the two |
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// models using underscores in alphabetical order. The two model names |
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// are transformed to snake case from their default CamelCase also. |
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if (is_null($table)) { |
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$table = $this->joiningTable($related, $instance); |
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} |
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return $this->newBelongsToMany( |
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$instance->newQuery(), $this, $table, $foreignPivotKey, |
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$relatedPivotKey, $parentKey ?: $this->getKeyName(), |
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$relatedKey ?: $instance->getKeyName(), $relation |
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); |
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} |
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/** |
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* Instantiate a new BelongsToMany relationship. |
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* |
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* @param \Illuminate\Database\Eloquent\Builder $query |
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* @param \Illuminate\Database\Eloquent\Model $parent |
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* @param string $table |
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* @param string $foreignPivotKey |
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* @param string $relatedPivotKey |
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* @param string $parentKey |
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* @param string $relatedKey |
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* @param string|null $relationName |
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* @return \BBSLab\NovaTranslation\Models\Relations\BelongsToMany |
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*/ |
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protected function newBelongsToMany(Builder $query, Model $parent, $table, $foreignPivotKey, $relatedPivotKey, |
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$parentKey, $relatedKey, $relationName = null) |
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{ |
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return new BelongsToMany($query, $parent, $table, $foreignPivotKey, $relatedPivotKey, $parentKey, $relatedKey, $relationName); |
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} |
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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.