Include autoincrement number for (better) UUID support

[simplenotezy]

When defining a muffin, I'd like to be able to define a value that is auto incremented. For instance; I make use of UUID, and when writing tests, it could be very useful to be able to call users like this: 1, 2, 3,4.

I.e:

FactoryMuffin::define(
    'User', [
        'id'                        => 'autoincrement', // would produce: 1, 2, 3, 4, 5, etc for each muffin
        'firstname'     => 'string',
        'lastname'          => 'string',
        'email'             => 'email',
        'size_system'       => 'numberBetween|1;7',
    ]
);

Is this possible as of right now?

[scottrobertson]

@GrahamCampbell FactoryGirl has an idea of Sequences, it's maybe something we can implement:

FactoryGirl.define do
  factory :user do
    sequence(:email) { |n| "user#{n}@example.com"}
  end
end

FactoryGirl.define do
  factory :user do
    sequence(:id)
  end
end

Quick idea:

$fm->define('User')->setDefinitions([
  'email' => $fm->sequence(function($n) {
    return "user{$n}@example.com";
  })
]);

$fm->define('User')->setDefinitions([
  'id' => $fm->sequence()
]);

The only issue with that implementation is that the sequence is global, and not per factory.

[scottrobertson]

@canfiax as a work around, you could use a combination of fakers unique() and randomDigitNotNull()

[GrahamCampbell]

This is already possible using our callable generator.

[GrahamCampbell]

Just pass in something like this:

function () use ($gen) {
    $gen->next();
};

Where the $gen variable is an instance of a class that looks like this:

class Gen
{
    private $last = 0;

    public function next()
    {
        return ++$this->last;
    }
}

[GrahamCampbell]

Or, even just this:

function () {
    static $last;

    if ($last === null) {
        return $last = 1;
    }

    return ++$last;
};

[sharan1]

@GrahamCampbell when we updated factory muffin from v2.1 to v3.1

For auto-incrementing ids, we used to use the following function:

function () {
        static $last;
         if ($last === null) {
             return $last = 1;
         }
         return ++$last;
}

But after upgrading the same function always started returning 1, resulting in errors for duplication of primary key in our test database.

Any idea what could be the issue and how to resolve it?