init

vendor/illuminate/database/Eloquent/Relations/HasManyThrough.php

@@ -0,0 +1,74 @@
+<?php
+
+namespace Illuminate\Database\Eloquent\Relations;
+
+use Illuminate\Database\Eloquent\Builder;
+use Illuminate\Database\Eloquent\Collection as EloquentCollection;
+use Illuminate\Database\Eloquent\Relations\Concerns\InteractsWithDictionary;
+
+/**
+ * @template TRelatedModel of \Illuminate\Database\Eloquent\Model
+ * @template TIntermediateModel of \Illuminate\Database\Eloquent\Model
+ * @template TDeclaringModel of \Illuminate\Database\Eloquent\Model
+ *
+ * @extends \Illuminate\Database\Eloquent\Relations\HasOneOrManyThrough<TRelatedModel, TIntermediateModel, TDeclaringModel, \Illuminate\Database\Eloquent\Collection<int, TRelatedModel>>
+ */
+class HasManyThrough extends HasOneOrManyThrough
+{
+    use InteractsWithDictionary;
+
+    /**
+     * Convert the relationship to a "has one through" relationship.
+     *
+     * @return \Illuminate\Database\Eloquent\Relations\HasOneThrough<TRelatedModel, TIntermediateModel, TDeclaringModel>
+     */
+    public function one()
+    {
+        return HasOneThrough::noConstraints(fn () => new HasOneThrough(
+            tap($this->getQuery(), fn (Builder $query) => $query->getQuery()->joins = []),
+            $this->farParent,
+            $this->throughParent,
+            $this->getFirstKeyName(),
+            $this->secondKey,
+            $this->getLocalKeyName(),
+            $this->getSecondLocalKeyName(),
+        ));
+    }
+
+    /** @inheritDoc */
+    public function initRelation(array $models, $relation)
+    {
+        foreach ($models as $model) {
+            $model->setRelation($relation, $this->related->newCollection());
+        }
+
+        return $models;
+    }
+
+    /** @inheritDoc */
+    public function match(array $models, EloquentCollection $results, $relation)
+    {
+        $dictionary = $this->buildDictionary($results);
+
+        // Once we have the dictionary we can simply spin through the parent models to
+        // link them up with their children using the keyed dictionary to make the
+        // matching very convenient and easy work. Then we'll just return them.
+        foreach ($models as $model) {
+            if (isset($dictionary[$key = $this->getDictionaryKey($model->getAttribute($this->localKey))])) {
+                $model->setRelation(
+                    $relation, $this->related->newCollection($dictionary[$key])
+                );
+            }
+        }
+
+        return $models;
+    }
+
+    /** @inheritDoc */
+    public function getResults()
+    {
+        return ! is_null($this->farParent->{$this->localKey})
+                ? $this->get()
+                : $this->related->newCollection();
+    }
+}