请先阅读。
这个例子假设下面的语句:
但这并不意味着您将无法支持一对一关系。
我创建了一个很好的方法的简单示例,它可以支持N个API并避免为每个API分别创建一个数据库表。
这里是数据库表。
apis
表格将等于您的api_list
,它将保存有关API的信息。在我的示例中(正如我所说的那样非常简单),我只添加了一列name
。
CREATE TABLE `apis` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`name` varchar(255) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8
我做了一个简单的users
表只是这个例子:
CREATE TABLE `users` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`email` varchar(255) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8
然后我做了一个新的表名为credentials
将举行所有凭据类型的API可以有。例如:用户名称,电子邮件,电话号码。 name
列将保存人性化的凭证名称。
CREATE TABLE `credentials` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`name` varchar(255) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8
我去将覆盖apis
不止一个要求credential
有办法。这就是为什么我需要在apis
和credentials
之间的数据透视表。
CREATE TABLE `api_credential` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`api_id` int(11) NOT NULL,
`credential_id` int(11) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8
下一页表我需要的是一种保持其api
一个user
有一个表。这相当于您的user_api_lookup
表格。
CREATE TABLE `api_user` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`api_id` int(11) NOT NULL,
`user_id` int(11) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8
而且最后一个表是什么将持有的实际凭据api_credential_user
:
CREATE TABLE `api_credential_user` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`api_credential_id` int(11) NOT NULL,
`value` text NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8
然后,我们将需要生成(至少我的用户artisan
这个)我们的模型,并设置它们之间的关系。
php artisan make:model Api
php artisan make:model ApiCredential
php artisan make:model ApiCredentialUser
php artisan make:model ApiUser
php artisan make:model Credential
User
模型附带Laravel的安装。
的Api
模型看起来是这样的: (我添加了注释上的每个关系)
class Api extends Model
{
protected $table = 'apis';
/**
* As I said an API might have multiple credential types/fields.
*/
public function credentials()
{
return $this->belongsToMany('App\Credential');
}
/**
* This will return all users that have a specific api attached.
*/
public function users()
{
return $this->belongsToMany('App\User');
}
}
Credential
型号:
class Credential extends Model
{
protected $table = 'credentials';
/**
* Get all apis this credential belongs to.
*/
public function apis()
{
return $this->belongsToMany('App\Api');
}
public function apiCredential() {
return $this->hasOne('App\ApiCredential');
}
}
ApiCredential
型号:
class ApiCredential extends Model
{
protected $table = 'api_credential';
/**
* Those are defined in the sake of consistency.
* Probably will not be used.
*/
public function api()
{
return $this->belongsTo('App\Api');
}
/**
* Those are defined in the sake of consistency.
* Probably will not be used.
*/
public function credential()
{
return $this->belongsTo('App\Credential');
}
public function user()
{
return $this->hasOne('App\ApiCredentialUser');
}
}
ApiCredentialUser
型号:
class ApiCredentialUser extends Model
{
protected $table = 'api_credential_user';
}
User
型号:用于演示目的
class User extends Model
{
protected $table = 'users';
public function apis()
{
return $this->belongsToMany('App\Api');
}
}
虚拟数据:
INSERT INTO `users` (`id`, `email`) VALUES (NULL, '[email protected]'), (NULL, '[email protected]');
INSERT INTO `credentials` (`id`, `name`) VALUES (NULL, 'phone_number'), (NULL, 'username'), (NULL, 'email');
INSERT INTO `apis` (`id`, `name`) VALUES (NULL, 'Github API'), (NULL, 'StackOverflow API'), (NULL, 'Twitter API'), (NULL, 'Facebook API'), (NULL, 'LinkedIn API');
INSERT INTO `api_credential` (`id`, `api_id`, `credential_id`) VALUES (NULL, '1', '1'), (NULL, '2', '2'),(NULL, '3', '3'), (NULL, '4', '1'),(NULL, '5', '2');
INSERT INTO `api_user` (`id`, `api_id`, `user_id`) VALUES (NULL, '1', '1'), (NULL, '2', '2');
INSERT INTO `api_credential_user` (`id`, `api_credential_id`, `value`) VALUES (NULL, '1', '0700-1111-2222'), (NULL, '2', 'myUsername');
这些关系的用法示例:
Route::get('/test', function() {
//Fetching all users (dummy data)
$user_1 = App\User::find(1);
$user_2 = App\User::find(2);
//To list every user's apis
echo '<h3>User: ' . $user_1->email . '</h3>';
echo 'Apis attached: <br />';
echo '<ul>';
foreach ($user_1->apis as $api) {
echo '<li>' . $api->name . '</li>';
//You can get required credentials per api.
echo '<ul>';
foreach ($api->credentials as $credential) {
//And for every credential you can get user's value.
echo '<li><b>Name:</b> ' . $credential->name . ' - <b>User value</b>: ' . $credential->apiCredential->user->value . '</li>';
}
echo '</li></ul>';
}
echo '</ul>';
//To list every user's apis
echo '<h3>User: ' . $user_2->email . '</h3>';
echo 'Apis attached: <br />';
echo '<ul>';
foreach ($user_2->apis as $api) {
echo '<li>' . $api->name . '</li>';
//You can get required credentials per api.
echo '<ul>';
foreach ($api->credentials as $credential) {
//And for every credential you can get user's value.
echo '<li><b>Name:</b> ' . $credential->name . ' - <b>User value</b>: ' . $credential->apiCredential->user->value . '</li>';
}
echo '</li></ul>';
}
echo '</ul>';
//To list all apis
echo '<h3>All apis:</h3>';
$apis = \App\Api::all();
foreach ($apis as $api) {
echo $api->name . '<br />';
}
//To list all credentials:
echo '<h3>All credentials:</h3>';
$credentials = \App\Credential::all();
foreach ($credentials as $credential) {
echo $credential->name . '<br />';
}
});
以上提供的虚拟数据将给出:screenshot。
因此,一个API将需要其中的一个:*用户名,电子邮件或电话号码*?或者它可能需要多于一个?这个'api1_table'是用于一个api,下一个api是否有它自己的数据库表? –
到目前为止,我们只处理那些需要其中一个的API。 是的,这就是我正在考虑的'apiN_table's –
这不是一个好的方法,imho,当使用像mysql这样的关系数据库。 –