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编辑当前文件:/home/digitalh/yeahea.digitalhubbd.com/app/Providers/ValidationServiceProvider.php

<?php

namespace App\Providers;

use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Request;
use Illuminate\Support\Facades\Validator;
use Illuminate\Support\ServiceProvider;

class ValidationServiceProvider extends ServiceProvider
{
    private $attributeValue;

/**
     * Bootstrap the application services.
     *
     * @return void
     */
    public function boot()
    {
        // composite_unique
        Validator::extend(
            'composite_unique',
            function ($attribute, $value, $parameters, $validator) {
                // Set the attribute value to use in feedback message
                $this->attributeValue = $value;

// Clean the parameters
                $parameters = array_map('trim', $parameters);

// Grab the table name and remove the it from parameters
                $table = array_shift($parameters);

// Check if the last parameter is a number and if so then assume the number is the exception ID
                $exceptionId = (bool) preg_match('/^\d+$/', end($parameters)) ? array_pop($parameters) : null;

// Now start building the conditional array.
                $wheres = $exceptionId ?
                    [
                        ['id', '!=', $exceptionId],
                    ] : [];

// Add current key-value in conditional array
                $wheres[] = [$attribute, '=', $value];

// iterates over the other given parameters and build the wheres array
                while ($field = array_shift($parameters)) {
                    if ($field == $attribute) {
                        continue;
                    } //Check if the attribute passed in the parameter

$t = explode(':', $field); //extract parameters that have value

// Check if the parameter passed with value
                    if (isset($t[1])) {
                        $t[1] = $t[1] != '' ? $t[1] : null; // IF the padded value is empty then assign NULL
                        $wheres[] = [$t[0], '=', $t[1]];  // Passed with value, so assign the value to the field
                    } else {
                        $wheres[] = [$field, '=', Request::get($field)];  // Passed field name only, so find the value in form request
                    }
                }

// Our conditional array is ready and now query the table with all the conditions
                $result = DB::table($table)->where($wheres)->first();

//Return FLASE if any record found
                return empty($result);
            }
        );

Validator::replacer('composite_unique', function ($message, $attribute, $rule, $parameters) {
            return str_replace(':value', $this->attributeValue, $message);
        });

// CSS validator
        Validator::extend('valid_css', function ($attribute, $value) {
            return true;
        });
    }

/**
     * Register the application services.
     *
     * @return void
     */
    public function register()
    {
        //
    }
}

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