暂存

vendor/illuminate/contracts/Database/ModelIdentifier.php

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+<?php
+
+namespace Illuminate\Contracts\Database;
+
+use Illuminate\Database\Eloquent\Relations\Relation;
+
+class ModelIdentifier
+{
+    /**
+     * Use the Relation morphMap for a Model's name when serializing.
+     */
+    protected static bool $useMorphMap = false;
+
+    /**
+     * The class name of the model.
+     *
+     * @var class-string<\Illuminate\Database\Eloquent\Model>|string|null
+     */
+    public $class;
+
+    /**
+     * The unique identifier of the model.
+     *
+     * This may be either a single ID or an array of IDs.
+     *
+     * @var mixed
+     */
+    public $id;
+
+    /**
+     * The relationships loaded on the model.
+     *
+     * @var array
+     */
+    public $relations;
+
+    /**
+     * The connection name of the model.
+     *
+     * @var string|null
+     */
+    public $connection;
+
+    /**
+     * The class name of the model collection.
+     *
+     * @var class-string<\Illuminate\Database\Eloquent\Collection>|null
+     */
+    public $collectionClass;
+
+    /**
+     * Create a new model identifier.
+     *
+     * @param  class-string<\Illuminate\Database\Eloquent\Model>|null  $class
+     * @param  mixed  $id
+     * @param  array  $relations
+     * @param  mixed  $connection
+     */
+    public function __construct($class, $id, array $relations, $connection)
+    {
+        if ($class !== null && self::$useMorphMap) {
+            $class = Relation::getMorphAlias($class);
+        }
+
+        $this->class = $class;
+        $this->id = $id;
+        $this->relations = $relations;
+        $this->connection = $connection;
+    }
+
+    /**
+     * Specify the collection class that should be used when serializing / restoring collections.
+     *
+     * @param  class-string<\Illuminate\Database\Eloquent\Collection>  $collectionClass
+     * @return $this
+     */
+    public function useCollectionClass(?string $collectionClass)
+    {
+        $this->collectionClass = $collectionClass;
+
+        return $this;
+    }
+
+    /**
+     * Get the fully-qualified class name of the Model.
+     *
+     * @return class-string<\Illuminate\Database\Eloquent\Model>|null
+     */
+    public function getClass(): ?string
+    {
+        if (self::$useMorphMap && $this->class !== null) {
+            return Relation::getMorphedModel($this->class) ?? $this->class;
+        }
+
+        return $this->class;
+    }
+
+    /**
+     * Indicate whether to use the relational morph-map when serializing Models.
+     */
+    public static function useMorphMap(bool $useMorphMap = true): void
+    {
+        static::$useMorphMap = $useMorphMap;
+    }
+}