result.Friends = user2.Friends

	DB.Select("Name", "Account", "Toys", "Manager", "ManagerID", "Languages").Save(&result)

	var result2 User
	DB.Preload("Account").Preload("Pets").Preload("Toys").Preload("Company").Preload("Manager").Preload("Team").Preload("Languages").Preload("Friends").First(&result2, user.ID)

	result.Languages = append(user.Languages, result.Languages...)
	result.Toys = append(user.Toys, result.Toys...)

		t.Fatalf("OpUnlink belongs-to failed: %v", err)
	}

	// Reload users to reflect the changes in the database
	if err := DB.First(&u1, u1.ID).Error; err != nil {
		t.Fatalf("reload u1: %v", err)
	}
	if err := DB.First(&u2, u2.ID).Error; err != nil {
		t.Fatalf("reload u2: %v", err)
	}

	// Check if company associations were cleared

	result, err := db.Preload("Company", nil).Preload("Pets", nil).Where("name = ?", u.Name).First(ctx)
	if err != nil {
		t.Fatalf("Preload failed: %v", err)
	}

	if result.Name != u.Name || result.Company.Name != u.Company.Name || len(result.Pets) != len(u.Pets) {
		t.Fatalf("Preload expected %s, got %+v", u.Name, result)
	}

	results, err := db.Preload("Company", func(db gorm.PreloadBuilder) error {

By default, `fastapi dev` will start with auto-reload enabled for local development.

You can read more about it in the <a href="https://fastapi.tiangolo.com/fastapi-cli/" target="_blank">FastAPI CLI docs</a>.

</details>

### Check it

}
... complex code ...
// compiler must NOT reload i = *p here
funcs[i]()
</pre>

<p>
If the complex code needs many registers, a compiler for single-threaded programs
could discard <code>i</code> without saving a copy and then reload
<code>i = *p</code> just before
<code>funcs[i]()</code>.
A Go compiler must not, because the value of <code>*p</code> may have changed.

By default, `fastapi dev` will start with auto-reload enabled for local development.

You can read more about it in the <a href="https://fastapi.tiangolo.com/fastapi-cli/" target="_blank">FastAPI CLI docs</a>.

</details>

### Check it { #check-it }

安装命令： `pip install python-multipart`。

这是因为 **OAuth2** 使用**表单数据**发送 `username` 与 `password`。

///

用下面的命令运行该示例：

<div class="termy">

```console
$ uvicorn main:app --reload

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

## 查看文档

			err = fmt.Errorf("Unable to load TLS certificate '%s,%s': %w", certFile, keyFile, err)
			bootLogIf(GlobalContext, err, logger.ErrorKind)
		}
	}
	secureConn = true

	// Certs might be symlinks, reload them every 10 seconds.
	manager.UpdateReloadDuration(10 * time.Second)

	// syscall.SIGHUP to reload the certs.
	manager.ReloadOnSignal(syscall.SIGHUP)

	r, err := ies.client.Get(cctx, iamConfigGroupsPrefix, etcd.WithPrefix(), etcd.WithKeysOnly())
	if err != nil {
		return err
	}

	groups := etcdKvsToSet(iamConfigGroupsPrefix, r.Kvs)

	// Reload config for all groups.
	for _, group := range groups.ToSlice() {
		if err = ies.loadGroup(ctx, group, m); err != nil && err != errNoSuchGroup {
			return err
		}
	}
	return nil
}

例えば、`pip install python-multipart`。

これは、**OAuth2**が `ユーザー名` や `パスワード` を送信するために、「フォームデータ」を使うからです。

///

例を実行します:

<div class="termy">

```console
$ uvicorn main:app --reload

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

## 確認