This Laravel 4 package provides a variety of generators to speed up your development process. These generators include:
generate:model
generate:controller
generate:seed
generate:migration
Begin by installing this package through Composer. Edit your project's composer.json
file to require way/generators
.
"require-dev": {
"way/generators": "v2.0"
}
Next, update Composer from the Terminal:
composer update --dev
Once this operation completes, the final step is to add the service provider. Open app/config/app.php
, and add a new item to the providers array.
'Way\Generators\GeneratorsServiceProvider'
That's it! You're all set to go. Run the artisan
command from the Terminal to see the new generate
commands.
php artisan
There's also a Sublime Text plugin available to assist with the generators. Definitely use it, but not before you learn the syntax below.
Think of generators as an easy way to speed up your workflow. Rather than opening the models directory, creating a new file, saving it, and adding the class, you can simply run a single generate command.
Laravel 4 offers a migration generator, but it stops just short of creating the schema (or the fields for the table). Let's review a couple examples, using generate:migration
.
php artisan generate:migration create_posts_table
If we don't specify the fields
option, the following file will be created within app/database/migrations
.
<?php
use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
class CreatePostsTable extends Migration {
/**
* Run the migrations.
*
* @return void
*/
public function up()
{
Schema::create('posts', function(Blueprint $table) {
$table->increments('id');
});
}
/**
* Reverse the migrations.
*
* @return void
*/
public function down()
{
Schema::drop('posts');
}
}
Notice that the generator is smart enough to detect that you're trying to create a table. When naming your migrations, make them as descriptive as possible. The migration generator will detect the first word in your migration name and do its best to determine how to proceed. As such, for create_posts_table
, the keyword is "create," which means that we should prepare the necessary schema to create a table.
If you instead use a migration name along the lines of add_user_id_to_posts_table
, in that case, the keyword is "add," signaling that we intend to add rows to an existing table. Let's see what that generates.
php artisan generate:migration add_user_id_to_posts_table
This will prepare the following boilerplate:
<?php
use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
class AddUserIdToPostsTable extends Migration {
/**
* Run the migrations.
*
* @return void
*/
public function up()
{
Schema::table('posts', function(Blueprint $table) {
});
}
/**
* Reverse the migrations.
*
* @return void
*/
public function down()
{
Schema::table('posts', function(Blueprint $table) {
});
}
}
Notice how, this time, we're not doing Schema::create
.
When writing migration names, use the following keywords to provide hints for the generator.
create
ormake
(create_users_table
)add
orinsert
(add_user_id_to_posts_table
)remove
(remove_user_id_from_posts_table
)delete
ordrop
(delete_users_table
)
This is pretty nice, but let's take things a step further and also generate the schema, using the fields
option.
php artisan generate:migration create_posts_table --fields="title:string, body:text"
Before we decipher this new option, let's see the output:
<?php
use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
class CreatePostsTable extends Migration {
/**
* Run the migrations.
*
* @return void
*/
public function up()
{
Schema::create('posts', function(Blueprint $table) {
$table->increments('id');
$table->string('title');
$table->text('body');
});
}
/**
* Reverse the migrations.
*
* @return void
*/
public function down()
{
Schema::drop('posts');
}
}
Nice! A few things to notice here:
- The generator will automatically set the
id
as the primary key. - It parsed the
fields
options, and added those fields. - The drop method is smart enough to realize that, in reverse, the table should be dropped entirely.
To declare fields, use a comma+space-separated list of key:value:option sets, where key
is the name of the field, value
is the column type, and option
is a way to specify indexes and such, like unique
or nullable
. Here are some examples:
--fields="first:string, last:string"
--fields="age:integer, yob:date"
--fields="username:string:unique, age:integer:nullable"
--fields="name:string:default('John Doe'), bio:text:nullable"
--fields="username:string(30):unique, age:integer:nullable:default(18)"
Please make note of the last example, where we specify a character limit: string(30)
. This will produce $table->string('username', 30)->unique();
It is possible to destroy the table by issuing:
php artisan generate:migration delete_posts_table
As a final demonstration, let's run a migration to remove the completed
field from a tasks
table.
php artisan generate:migration remove_completed_from_tasks_table --fields="completed:boolean"
This time, as we're using the "remove" keyword, the generator understands that it should drop a column, and add it back in the down()
method.
<?php
use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
class RemoveCompletedFromTasksTable extends Migration {
/**
* Run the migrations.
*
* @return void
*/
public function up()
{
Schema::table('tasks', function(Blueprint $table) {
$table->dropColumn('completed');
});
}
/**
* Reverse the migrations.
*
* @return void
*/
public function down()
{
Schema::table('tasks', function(Blueprint $table) {
$table->boolean('completed');
});
}
}
php artisan generate:model Post
This will create the file, app/models/Post.php
and insert the following boilerplate:
<?php
class Post extends \Eloquent {
}
Laravel 4 provides us with a flexible way to seed new tables.
php artisan generate:seed users
Set the argument to the name of the table that you'd like a seed file for. This will generate app/database/seeds/UsersTableSeeder.php
and populate it with:
<?php
// Composer: "fzaninotto/faker": "v1.3.0"
use Faker\Factory as Faker;
class UsersTableSeeder extends Seeder {
public function run()
{
$faker = Faker::create();
foreach(range(1, 10) as $index)
{
User::create([
]);
}
}
}
This will give you a basic bit of boilerplate, using the popular Faker library. This is a nice way to seed your DB tables. Don't forget to pull in Faker through Composer!