Laravel在哪里放置/如何处理枚举? [英] Where to put/how to handle enums in Laravel?

问题描述

Laravel具有一个<select>表单帮助器，该输入器将字典作为输入.我喜欢将所有这些价值观保持在中心位置.例如，我可能有一个如下所示的枚举:

Laravel has a <select> form helper which takes as input a dictionary. I like to keep the values for all of these in a central place. For example, I might have an enum that looks like this:

$phoneTypes = [
    'CELL' => "Cellular",
    'HOME' => "Home",
    'WORK' => "Work",
];

我想同时在视图/模板和数据库中使用

Which I want to use in both my view/template, and in the database:

Schema::create('customers', function (Blueprint $table) {
    $table->increments('id');
    $table->enum('pri_phone_type',array_keys($phoneTypes));
    ...
});

1. 有推荐的放置这些的地方吗?
2. 我可以将它们设置为全局，以便我可以在所有视图中轻松访问它们吗?

推荐答案

您有几种处理枚举的选项.在开始讨论之前，我强烈建议您不要使用DB enum列类型.

You have several options for handling enums. Before we look at a few though, I would first strongly encourage you not to use the DB enum column type.

数据库枚举由于许多原因而有问题.我建议例如阅读这篇文章:

Database enums are problematic for a number of reasons. I suggest reading this article for example:

http://komlenic.com /244/8-reasons-why-mysqls-enum-data-type-is-evil/

因此，让我们看看其他一些选择.

So with that let's look at a few other options.

由于您使用的是Laravel，一个非常简单的选项是将一系列选项粘贴在配置文件中.

Since you're using Laravel, one very simple option is to stick an array of options in a config file.

假设您使用以下内容创建新文件config/enums.php:

Say you create a new file config/enums.php with the following:

return [
    'phone_types' => [
        'CELL' => "Cellular",
        'HOME' => "Home",
        'WORK' => "Work",
    ]
];

您现在可以在代码中的任何位置访问config('enums.phone_types')，包括Blade模板.

You can now access config('enums.phone_types') anywhere in your code, including your Blade template.

@Banford的答案显示了如何使用类常量进行基本的枚举类型的行为.如果您喜欢这种方法，建议您阅读这篇基于此概念的文章和程序包，以提供强类型的枚举:

@Banford's answer shows how to do basic enum-type behavior with class constants. If you like that approach, I recommend looking at this article and package which builds on this concept to provide strongly type enums:

https://stitcher.io/blog/php-enums

https://github.com/spatie/enum

您将创建一个这样的类:

You would create a class like this:

/**
 * @method static self cell()
 * @method static self home()
 * @method static self work()
 */
class PhoneTypes extends Enum
{
}

现在您可以在应用程序中调用PhoneTypes::home().如果需要，请查看该软件包的文档，以了解如何创建值映射.

And now you can call PhoneTypes::home() in your app. Check out the documentation for that package to see how you can create a map of values, if you want.

如果您真的要管理数据库中的选项，我将创建一个单独的phone_types数据库表，并与您的customers表建立关系.与使用enum列类型相比，这是 still 更好的选择.

If you really want to manage your options in the database, I'd create a separate phone_types database table and create a relationship with your customers table. This is still a much better option than using enum column type.

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