Laravel 验证两列

Question

如何在请求验证中合并两列唯一的 together 以同时添加和更新？ 最少 代码量。

Answer 1

您可以通过以下语法忽略特定的 id

'email' => 'unique:table,email_column_to_check,id_to_ignore'

更多信息可以查看官方documentation

Answer 2

您可以通过扩展 Validator 类来创建自定义验证器。

<?php
// rules define for the particular request.
public function rules() {
    \Validator::extend( 'composite_unique', function ( $attribute, $value, $parameters, $validator ) {

            // remove first parameter and assume it is the table name
            $table = array_shift( $parameters ); 

            // start building the conditions
            $fields = [ $attribute => $value ]; // current field, company_code in your case

            // iterates over the other parameters and build the conditions for all the required fields
            while ( $field = array_shift( $parameters ) ) {
                $fields[ $field ] = $this->get( $field );
            }

            // query the table with all the conditions
            $result = \DB::table( $table )->select( \DB::raw( 1 ) )->where( $fields )->first();

            return empty( $result ); // edited here
        }, 'your custom composite unique key validation message' );

    return [
        'account_name' => 'required|min:5|max:100',
        'legal_name'   => 'max:100',
        // note that here the custom validator is used
        'company_code' => 'required|size:18|composite_unique:accounts,client_id', 
        'client_id'    => 'required|min:1',
    ];
}