Laravel 5 - artisan seed [ReflectionException] Cla

问题:

When I run php artisan db:seed I am getting the following error:

[ReflectionException] Class SongsTableSeeder does not exist

What is going on?

My DatabaseSeeder class:

<?php

use Illuminate\Database\Seeder;
use Illuminate\Database\Eloquent\Model;

class DatabaseSeeder extends Seeder {

    /**
     * Run the database seeds.
     *
     * @return void
     */
    public function run()
    {
        Model::unguard();

        $this->call('SongsTableSeeder');
    }

}

My SongsTableSeeder class:

<?php

// Composer: "fzaninotto/faker": "v1.4.0"
use Faker\Factory as Faker;
use Illuminate\Database\Seeder;
use DB;

class SongsTableSeeder extends Seeder {

    public function run()
    {
        $faker = Faker::create();
        $songs = [];
        foreach(range(1, 10) as $index)
        {
            $songs[] = ['title' => $faker->words(rand(1,4))];
        }

        DB::table('songs')->insert($songs);

    }

}

回答1:

You need to put SongsTableSeeder into file SongsTableSeeder.php in the same directory where you have your DatabaseSeeder.php file.

And you need to run in your console:

composer dump-autoload

to generate new class map and then run:

php artisan db:seed

I've just tested it. It is working without a problem in Laravel 5

回答2:

I solved it by doing this:

1. Copy the file content.
2. Remove file.
3. Run command: php artisan make:seeder .
4. Copy the file content back in this file.

This happened because I made a change in the filename. I don't know why it didn't work after the change.

回答3:

File SongsTableSeeder.php should be in database/seeds directory or in its subdirectory.

You need to run:

composer dump-autoload

and then:

php artisan db:seed

or:

php artisan db:seed --class=SongsTableSeeder

回答4:

I'm running the very latest Laravel 5 dev release, and if you've changed the namespace you'll need to call your seed class like this:

$this->call('\todoparrot\TodolistTableSeeder');

Obviously you'll need to replace todoparrot with your designated namespace. Otherwise I receive the same error indicated in the original question.

回答5:

SongsTableSeeder.php should be in database/seeds directory

Console command steps:

composer dump-autoload

and then:

php artisan cache:clear

and then:

php artisan optimize

and then:

php artisan db:seed

or:

php artisan db:seed --class=SongsTableSeeder

回答6:

If our CustomTableSeeder is in same directory with DatabaseSeeder we should use like below:

$this->call('database\seeds\CustomTableSeeder');

in our DatabaseSeeder File; then another error will be thrown that says: 'DB Class not found' then we should add our DB facade to our CustomTableSeeder File like below:

use Illuminate\Support\Facades\DB;

it worked for me!

回答7:

I have used only SINGLE FILE with TWO classes in it following :

use Illuminate\Database\Seeder;
use Illuminate\Database\Eloquent\Model;
use App\Lesson;

use Faker\Factory as Faker;

class DatabaseSeeder extends Seeder {

/**
 * Run the database seeds.
 *
 * @return void
 */
public function run()
{
    //Lesson::truncate();

    Model::unguard();

    $this->call("LessonsTableSeeder");


}

}

class LessonsTableSeeder extends Seeder {

/**
 * Run the database seeds.
 *
 * @return void
 */
public function run()
{

    $faker = Faker::create();

    foreach(range(1,30) as $index) {

        Lesson::create(['title' => $faker->sentence(5), 'body' => $faker->paragraph(4)]);

    }

}

}

回答8:

I had the same "reflection exception" error. The solution was to copy the class file to the server, from dev, for me. dumb mistake, but given how many files we deal with its easy to forget to copy them over to the server every time.

回答9:

Laravel requires a "root" seeder class:

See the artisan help page:

$ php artisan help db:seed   

Usage:
  db:seed [options]

Options:
      --class[=CLASS]        The class name of the root seeder [default: "DatabaseSeeder"]
      --database[=DATABASE]  The database connection to seed
      --force                Force the operation to run when in production.
  -h, --help                 Display this help message
  -q, --quiet                Do not output any message
  -V, --version              Display this application version
      --ansi                 Force ANSI output
      --no-ansi              Disable ANSI output
  -n, --no-interaction       Do not ask any interactive question
      --env[=ENV]            The environment the command should run under
  -v|vv|vvv, --verbose       Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug

Help:
  Seed the database with records

If you want to delete the DatabaseSeeder, you have to define the seeder class with the --class option.

回答10:

What I did is to recreate the Seeder again and it works for me.

php artisan make:seeder UsersTableSeeder

回答11:

Do not forgot that the composer dump-autoload works in relation with the autoload / classmap section of composer.json. Take care about that if you need to change seeders directory or use multiple directories to store seeders.

"autoload": {
    "classmap": [
      "database/seeds",
      "database/factories"
    ],
},

回答12:

If you have copied the seeders files from any other project then you need to run the artisan command php artisan db:seed otherwise it is fine.