Laravel 5.1 Create or Update on Duplicate

问题:

In Laravel 5.1, for MySQL insert, I want to see if the record already exists and update on duplicate or create new if none exists.

I have already searched SO where the answers were for old laravel versions. In one of the old topics it said that a new updateOrCreate() method was added in core last year. But when I try that, I am getting the error:

Integrity constraint violation: 1062 Duplicate entry '1' for key 'app_id' 

This is the query I use:

AppInfo::updateOrCreate(array(
    'app_id' => $postData['appId'],
    'contact_email' => $postData['contactEmail']
));

Where app_id is the unique foreign key in that table and I want to update the record if exists or create a new one. I have tried searching the 5.1 docs and couldn't find the info I need. Can someone guide me here please...

回答1:

As per the Definition of the Eloquent Model Method "updateOrCreate()"

function updateOrCreate(array $attributes, array $values = []){}

it takes two argument ...

1. one is the attributes using which you want to check in database if the record is present
2. second is the new attribute values that you want to create or update

---

AppInfo::updateOrCreate(['app_id' => $postData['appId']],
                        ['contact_email' => $postData['contactEmail']]);

回答2:

I am answering to this question cause I can't find any answer related to ON DUPLICATE KEY UPDATE, although I am using Laravel 5.4. If you look at the updateOrCreate method in the Laravel's core code, you will see after all Laravel is using 2 different queries: one for update and another one for create. Because of this, sometimes you can get duplicated data in the DB. So in some cases it can be useful to write this kind of raw query:

DB::statement("INSERT INTO table_name (col_1, col_2) VALUES (?, ?) ON DUPLICATE KEY UPDATE col_1 = col_1 + 1", ([val_1, val_2]));

Hope it can be useful for someone.

回答3:

I created a package to work with MySQL insert on duplicate key.

It may be useful for others:

https://packagist.org/packages/yadakhov/insert-on-duplicate-key

Example:

/**
 * Class User.
 */
class User extends Model
{
    use Yadakhov\InsertOnDuplicateKey;
    ...
}

// associative array must match column names
$users = [
    ['id' => 1, 'email' => '[e-mail]', 'name' => 'User One'],
    ['id' => 2, 'email' => '[e-mail]', 'name' => 'User Two'],
    ['id' => 3, 'email' => '[e-mail]', 'name' => 'User Three'],
];

User::insertOnDuplicateKey($users);

回答4:

Add the follow method insertUpdate to your Model

<?php

namespace App;

use Illuminate\Auth\Authenticatable;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Auth\Passwords\CanResetPassword;
use Illuminate\Foundation\Auth\Access\Authorizable;
use Illuminate\Contracts\Auth\Authenticatable as AuthenticatableContract;
use Illuminate\Contracts\Auth\Access\Authorizable as AuthorizableContract;
use Illuminate\Contracts\Auth\CanResetPassword as CanResetPasswordContract;

class User extends Model implements AuthenticatableContract,
                                    AuthorizableContract,
                                    CanResetPasswordContract
{
    use Authenticatable, Authorizable, CanResetPassword;

    /**
     * The database table used by the model.
     *
     * @var string
     */
    protected $table = 'users';

    /**
     * The attributes that are mass assignable.
     *
     * @var array
     */
    protected $fillable = ['name', 'email', 'password'];

    /**
     * The attributes excluded from the model's JSON form.
     *
     * @var array
     */
    protected $hidden = ['password', 'remember_token'];


    public static function insertUpdate(array $attributes = [])
    {
        $model = new static($attributes);

        $model->fill($attributes);

        if ($model->usesTimestamps()) {
            $model->updateTimestamps();
        }

        $attributes = $model->getAttributes();

        $query = $model->newBaseQueryBuilder();
        $processor = $query->getProcessor();
        $grammar = $query->getGrammar();

        $table = $grammar->wrapTable($model->getTable());
        $keyName = $model->getKeyName();
        $columns = $grammar->columnize(array_keys($attributes));
        $insertValues = $grammar->parameterize($attributes);

        $updateValues = [];

        if ($model->primaryKey !== null) {
            $updateValues[] = "{$grammar->wrap($keyName)} = LAST_INSERT_ID({$keyName})";
        }

        foreach ($attributes as $k => $v) {
            $updateValues[] = sprintf("%s = '%s'", $grammar->wrap($k), $v);
        }

        $updateValues = join(',', $updateValues);

        $sql = "insert into {$table} ({$columns}) values ({$insertValues}) on duplicate key update {$updateValues}";

        $id = $processor->processInsertGetId($query, $sql, array_values($attributes));

        $model->setAttribute($keyName, $id);

        return $model;
    }
}

You can use:

App\User::insertUpdate([
    'name' => 'Marco Pedraza',
    'email' => '[e-mail]'
]);

The next query it will be executed:

insert into `users` (`name`, `email`, `updated_at`, `created_at`) values (?, ?, ?, ?) on duplicate key update `id` = LAST_INSERT_ID(id),`name` = 'Marco Pedraza',`email` = '[e-mail]',`updated_at` = '2016-11-02 01:30:05',`created_at` = '2016-11-02 01:30:05'

The method automatically add/remove the Eloquent timestamps if you have enabled or disabled.

回答5:

To use laravel function updateOrCreate you need auto increment id in your table.

what they are doing is

select id from your_table where your_attributes

after that get auto increment id

then

update your_table set your_values where field_id

回答6:

In my case this was caused by a simple mismatch on the auto incrementing key in my model table.

Getting the current max id:

SELECT max(id) from companies

Then setting the sequence value one higher:

select setval('companies_id_seq', 164);

eliminated the error.