在多对多关系 Laravel 中命名表

问题描述

我担心多对多 Laravel 关系中的自动命名表.

I concerned about auto naming tables in many-to-many Laravel relationship.

例如:

Schema::create('feature_product', function (Blueprint $table) {}

当表名改为:

Schema::create('product_feature', function (Blueprint $table) {}

我的关系有问题.

product_feature 有什么问题?

推荐答案

Laravel 对数据透视表的命名约定是用蛇形大小写的模型名称按字母顺序用下划线分隔.因此，如果一个模型是 Feature，另一个模型是 Product，那么数据透视表将是 feature_product.

Laravel's naming convention for pivot tables is snake_cased model names in alphabetical order separated by an underscore. So, if one model is Feature, and the other model is Product, the pivot table will be feature_product.

您可以随意使用任何您想要的表名称(例如 product_feature)，但是您需要在关系中指定数据透视表的名称.这是使用 belongsToMany() 函数的第二个参数完成的.

You are free to use any table name you want (such as product_feature), but you will then need to specify the name of the pivot table in the relationship. This is done using the second parameter to the belongsToMany() function.

// in Product model
public function features()
{
    return $this->belongsToMany('AppFeature', 'product_feature');
}

// in Feature model
public function products()
{
    return $this->belongsToMany('AppProduct', 'product_feature');
}

您可以在文档中阅读有关多对多关系的更多信息.

You can read more about many to many relationships in the docs.

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