v0.0.0 Initial Commit

vendor/illuminate/database/Eloquent/Relations/Concerns/ComparesRelatedModels.php

@@ -0,0 +1,77 @@
+<?php
+
+namespace Illuminate\Database\Eloquent\Relations\Concerns;
+
+use Illuminate\Contracts\Database\Eloquent\SupportsPartialRelations;
+use Illuminate\Database\Eloquent\Model;
+
+trait ComparesRelatedModels
+{
+    /**
+     * Determine if the model is the related instance of the relationship.
+     *
+     * @param  \Illuminate\Database\Eloquent\Model|null  $model
+     * @return bool
+     */
+    public function is($model)
+    {
+        $match = ! is_null($model) &&
+               $this->compareKeys($this->getParentKey(), $this->getRelatedKeyFrom($model)) &&
+               $this->related->getTable() === $model->getTable() &&
+               $this->related->getConnectionName() === $model->getConnectionName();
+
+        if ($match && $this instanceof SupportsPartialRelations && $this->isOneOfMany()) {
+            return $this->query
+                        ->whereKey($model->getKey())
+                        ->exists();
+        }
+
+        return $match;
+    }
+
+    /**
+     * Determine if the model is not the related instance of the relationship.
+     *
+     * @param  \Illuminate\Database\Eloquent\Model|null  $model
+     * @return bool
+     */
+    public function isNot($model)
+    {
+        return ! $this->is($model);
+    }
+
+    /**
+     * Get the value of the parent model's key.
+     *
+     * @return mixed
+     */
+    abstract public function getParentKey();
+
+    /**
+     * Get the value of the model's related key.
+     *
+     * @param  \Illuminate\Database\Eloquent\Model  $model
+     * @return mixed
+     */
+    abstract protected function getRelatedKeyFrom(Model $model);
+
+    /**
+     * Compare the parent key with the related key.
+     *
+     * @param  mixed  $parentKey
+     * @param  mixed  $relatedKey
+     * @return bool
+     */
+    protected function compareKeys($parentKey, $relatedKey)
+    {
+        if (empty($parentKey) || empty($relatedKey)) {
+            return false;
+        }
+
+        if (is_int($parentKey) || is_int($relatedKey)) {
+            return (int) $parentKey === (int) $relatedKey;
+        }
+
+        return $parentKey === $relatedKey;
+    }
+}