如果Laravel中已经存在具有特定ID的电子邮件，如何防止插入电子邮件? [英] How to prevent insert email if already exist with specific id in laravel?
问题描述
我有一张要存储电子邮件地址的表.这些电子邮件地址将用user_id保存.
I have table in which i'm trying to store email addresses. These email addresses will be save with user_id.
例如在email_list表中
|ID | user_id | email |
...............................
| 1 | 101 | john@gmail.com |
...............................
| 2 | 102 | john@gmail.com |
在上表中，您可以看到使用不同的user_id保存的相同电子邮件地址，这就是我要执行的操作.
In above table you can see same email addresses save with different user_id, that's it what i'm trying to do.
目前，我正在尝试像这样的简单laravel验证.
Currently i'm trying simple laravel validation like this.
'email' => 'required|unique:email_list|email',
因此，如果行具有相同的user_id，是否有任何方法可以检查已经存在的电子邮件地址?我正在使用laravel 5.2.如果有人指导我，我将不胜感激.谢谢
So is there any way to check already exist email addresses if row has same user_id? I'm using laravel 5.2. I would like to appreciate if someone guide me. Thank you
3小时后编辑
我还在github中添加了与 issue 相同的问题.有人说我必须创建自己的验证规则.
I also add same question in the github as issue. A person is saying that i have to create own validation rule.
推荐答案
强制使用唯一规则忽略给定ID
您可以将要忽略的ID指定为可选的第三个参数.此外，如果您的表使用的主键列名称不是id，则可以将其指定为可选的第四个参数
You can specify an ID to be ignored as the optional third parameter. Furthermore, if your table uses a primary key column name other than id, you may specify it as the optional fourth parameter
'email' => "unique:{$table},{$field},{$user->id},{$idField}"
因此，您的情况如下
'email' => "unique:email_list,email,{$user->id},user_id'
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