Laravel 如何更新一对一的关系？

Laravel How to update one to one relationships?

提问by Dark Cyber

Terms table:

术语表：

• term_id
• name
• slug

• term_id
• 姓名
• 蛞蝓

Term_taxonomy table:

Term_taxonomy 表：

• term_taxonomy_id
• term_id
• description

• term_taxonomy_id
• term_id
• 描述

My Term model:

我的术语模型：

public function TermTaxonomy(){
    return $this->hasOne('TermTaxonomy');
}

My TermTaxonomy model:

我的术语分类模型：

public function Term(){
    return $this->belongsTo('Term');
}

My Categories controller:

我的类别控制器：

public function update($id){
    echo "$id"; // echo success
    echo $data['name']; // it should update name field in term table
    echo $data['slug']; // it should update slug field in term table
    echo $data['TermTaxonomy']['description']; // it should update description field in termtaxonomy table
}

how i can update one to one relationships ? maybe with push()

我如何更新一对一的关系？也许用 push()

Thanks, sorry i am new in laravel.

谢谢，对不起，我是laravel的新手。

回答by crabbly

You can use Eloquent's update()method: https://laravel.com/docs/5.4/eloquent#updates

您可以使用 Eloquent 的update()方法：https: //laravel.com/docs/5.4/eloquent#updates

$Term = Term::with('TermTaxonomy')->find($id);
$Term->name = $data['name'];
$Term->slug = $data['slug'];

// Save The Term first
$Term->save();

// Now update the relation
$Term->TermTaxonomy->update([
    'taxonomy' => 'category',
    'description' => $data['TermTaxonomy']['description']
]);

回答by Dark Cyber

as Jarek Tkaczyk comment in this question Laravel eloquent: Update A Model And its Relationships

正如 Jarek Tkaczyk 在这个问题中的评论Laravel eloquent: Update A Model And its Relationships

There is no other way, as Eloquent currently doesn't know what relations are on the model until you call them as dynamic property, load with load method, eager load etc. (push works only with loaded relations that are present in model's relations array)

没有其他方法，因为 Eloquent 目前不知道模型上有什么关系，直到您将它们称为动态属性、使用 load 方法加载、预先加载等（推送仅适用于模型的关系数组中存在的加载关系)

so i use this code.

所以我使用这个代码。

$Term = Term::with('TermTaxonomy')->find($id);
$Term->name = $data['name'];
$Term->slug = $data['slug'];
$Term->TermTaxonomy->taxonomy = 'category';
$Term->TermTaxonomy->description = $data['TermTaxonomy']['description'];
$Term->push();

and it works. Term and TermTaxonomy table is updated, but if change push() to save() it only update Term table even TermTaxonomy relationships already loaded with Eager load Term::with('TermTaxonomy')

它有效。Term 和 TermTaxonomy 表已更新，但如果将 push() 更改为 save() 它只会更新 Term 表，即使 TermTaxonomy 关系已经加载了 Eager 负载Term::with('TermTaxonomy')

Thanks for all :D

谢谢大家:D