如何在 Laravel 模型上设置属性的默认值

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You should set default values in migrations:

$table->tinyInteger('role')->default(1);

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最佳答案

You can set Default attribute in Model also>

protected $attributes = [
'status' => self::STATUS_UNCONFIRMED,
'role_id' => self::ROLE_PUBLISHER,
];

You can find the details in these links

1.) How to set a default attribute value for a Laravel / Eloquent model?

2.) https://laracasts.com/index.php/discuss/channels/eloquent/eloquent-help-generating-attribute-values-before-creating-record

You can also Use Accessors & Mutators for this You can find the details in the Laravel documentation 1.) https://laravel.com/docs/4.2/eloquent#accessors-and-mutators

2.) https://scotch.io/tutorials/automatically-format-laravel-database-fields-with-accessors-and-mutators

3.) Universal accessors and mutators in Laravel 4

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The other answers are not working for me - they may be outdated. This is what I used as my solution for auto setting an attribute:

/**
* The "booting" method of the model.
*
* @return void
*/
protected static function boot()
{
parent::boot();


// auto-sets values on creation
static::creating(function ($query) {
$query->is_voicemail = $query->is_voicemail ?? true;
});
}