Question

尝试在提交帖子时将Users名称从Users表中检索，并将firstname插入到字段作者下的Posts表中。我不认为我会正确地做到这一点。

发布模型

 public function insertPost($input)
{
    $validation = new Services\Validators\Post;

    if ($validation->passes())
    {
        $post = Post::create($input);

        // Get the logged in user from the users table and save it to the posts table author field
        $name = Post::get()->user->firstname;

        $author = $input['author'];
        $post->author = $name;
        $post->save();

    }

public function user()
{
    return $this->belongsTo('User', 'firstname');
}

用户模型（关系定义为Post模型）

public function posts()
{
    return $this->hasMany('Post', 'author');
}

Answer 1

您正尝试实例化 Post :: create 。如果你想要Post模型的实例，你应该：

$post = new Post

另请参阅您是否实际向用户提供了Post模型？

Answer 2

您可以尝试此操作（只有登录的用户可以提交帖子，因此从登录的用户对象中获取名称）：

if ($validation->passes())
{
    $name = Auth::user()->firstname; // Get logged in user's first name
    $input = array_merge(array('author' => $name), $input);
    return $post = Post::create($input);
}

您也可以像这样创建新帖子：

$post = new Post;
$post->title = Input::get('title'); // or $input[['title'] if $input is available
$post->author = Auth::user()->firstname;
// ... do same for all fields, assign values to each field, then save
return  $post->save();

Laravel 4模型关系一对多混淆

2 个答案: