Laravel 4: how to update multiple fields in an Eloquent model?

问题

How can I update multiple fields in an Eloquent model? Let's say I got it like this:

$user = User::where("username", "=", "rok");

And then I have all these model parameters:

$new_user_data = array("email" => "rok@rok.com", "is_superuser" => 1, ...);

I can't just do:

$user->update($new_user_data);

What's the proper way? I hope not a foreach.

The following does work, however. Is this the way to go?

User::where("id", "=", $user->id)->update($new_user_data);

The problem with the last one (besides it being clunky) is that when using it from an object context, the updated fields are not visible in the $this variable.

回答1:

The method you're looking for is fill():

$user = User::where ("username","rok"); // note that this shortcut is available if the comparison is =
$new_user_data = array(...);
$user->fill($new_user_data);
$user->save();

Actually, you could do $user->fill($new_user_data)->save(); but I find the separate statements a little easier to read and debug.

回答2:

You are looking for this:

$user = User::where("username","rok")
                ->update( 
                       array( 
                             "email" => "rok@rok.com",
                             "is_superuser" => 1,
                             // ..
                             )
                       );

Refer : http://laravel.com/docs/4.2/eloquent#insert-update-delete

回答3:

I should suggest to use shorter code, such as

    $new_user_data=array('a'=>'n','b'=>'m');
    $user=User::whereUsername('rok');//camelCase replaces "=" sign
    $user->fill($new_user_data)->save();

Or even shorter

    $new_user_data=array('a'=>'n','b'=>'m');
    User::whereUsername('rok')->update($new_user_data);//camelCase replaces "=" sign

I believe the last statement is easier to debug and looks nicer.
Warning: If your table contains many users named 'rok' both mentioned statements will update all those registers at once. You should always update registers with the id field value.

回答4:

Try this,

// took required data out of the request
$postData = request(
    [
        'firstName',
        'lastName',
        'address1',
        'address2',
        'address3',
        'postcode',
        'phone',
        'imageURL',
    ]
);
// persisted it to the database
DB::table('users')
    ->where('id', auth()->user()->id)
);

来源：https://stackoverflow.com/questions/14878095/laravel-4-how-to-update-multiple-fields-in-an-eloquent-model

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