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<?php
namespace Illuminate\Database\Eloquent;
use Faker\Generator as Faker;
use InvalidArgumentException;
use Illuminate\Support\Traits\Macroable;
class FactoryBuilder
{
use Macroable;
/**
* The model definitions in the container.
*
* @var array
*/
protected $definitions;
/**
* The model being built.
*
* @var string
*/
protected $class;
/**
* The name of the model being built.
*
* @var string
*/
protected $name = 'default';
/**
* The model states.
*
* @var array
*/
protected $states;
/**
* The states to apply.
*
* @var array
*/
protected $activeStates = [];
/**
* The Faker instance for the builder.
*
* @var \Faker\Generator
*/
protected $faker;
/**
* The number of models to build.
*
* @var int|null
*/
protected $amount = null;
/**
* Create an new builder instance.
*
* @param string $class
* @param string $name
* @param array $definitions
* @param array $states
* @param \Faker\Generator $faker
* @return void
*/
public function __construct($class, $name, array $definitions, array $states, Faker $faker)
{
$this->name = $name;
$this->class = $class;
$this->faker = $faker;
$this->states = $states;
$this->definitions = $definitions;
}
/**
* Set the amount of models you wish to create / make.
*
* @param int $amount
* @return $this
*/
public function times($amount)
{
$this->amount = $amount;
return $this;
}
/**
* Set the states to be applied to the model.
*
* @param array|mixed $states
* @return $this
*/
public function states($states)
{
$this->activeStates = is_array($states) ? $states : func_get_args();
return $this;
}
/**
* Create a model and persist it in the database if requested.
*
* @param array $attributes
* @return \Closure
*/
public function lazy(array $attributes = [])
{
return function () use ($attributes) {
return $this->create($attributes);
};
}
/**
* Create a collection of models and persist them to the database.
*
* @param array $attributes
* @return mixed
*/
public function create(array $attributes = [])
{
$results = $this->make($attributes);
if ($results instanceof Model) {
$this->store(collect([$results]));
} else {
$this->store($results);
}
return $results;
}
/**
* Set the connection name on the results and store them.
*
* @param \Illuminate\Support\Collection $results
* @return void
*/
protected function store($results)
{
$results->each(function ($model) {
$model->setConnection($model->newQueryWithoutScopes()->getConnection()->getName());
$model->save();
});
}
/**
* Create a collection of models.
*
* @param array $attributes
* @return mixed
*/
public function make(array $attributes = [])
{
if ($this->amount === null) {
return $this->makeInstance($attributes);
}
if ($this->amount < 1) {
return (new $this->class)->newCollection();
}
return (new $this->class)->newCollection(array_map(function () use ($attributes) {
return $this->makeInstance($attributes);
}, range(1, $this->amount)));
}
/**
* Create an array of raw attribute arrays.
*
* @param array $attributes
* @return mixed
*/
public function raw(array $attributes = [])
{
if ($this->amount === null) {
return $this->getRawAttributes($attributes);
}
if ($this->amount < 1) {
return [];
}
return array_map(function () use ($attributes) {
return $this->getRawAttributes($attributes);
}, range(1, $this->amount));
}
/**
* Get a raw attributes array for the model.
*
* @param array $attributes
* @return mixed
*/
protected function getRawAttributes(array $attributes = [])
{
$definition = call_user_func(
$this->definitions[$this->class][$this->name],
$this->faker, $attributes
);
return $this->expandAttributes(
array_merge($this->applyStates($definition, $attributes), $attributes)
);
}
/**
* Make an instance of the model with the given attributes.
*
* @param array $attributes
* @return \Illuminate\Database\Eloquent\Model
*
* @throws \InvalidArgumentException
*/
protected function makeInstance(array $attributes = [])
{
return Model::unguarded(function () use ($attributes) {
if (! isset($this->definitions[$this->class][$this->name])) {
throw new InvalidArgumentException("Unable to locate factory with name [{$this->name}] [{$this->class}].");
}
return new $this->class(
$this->getRawAttributes($attributes)
);
});
}
/**
* Apply the active states to the model definition array.
*
* @param array $definition
* @param array $attributes
* @return array
*/
protected function applyStates(array $definition, array $attributes = [])
{
foreach ($this->activeStates as $state) {
if (! isset($this->states[$this->class][$state])) {
throw new InvalidArgumentException("Unable to locate [{$state}] state for [{$this->class}].");
}
$definition = array_merge($definition, call_user_func(
$this->states[$this->class][$state],
$this->faker, $attributes
));
}
return $definition;
}
/**
* Expand all attributes to their underlying values.
*
* @param array $attributes
* @return array
*/
protected function expandAttributes(array $attributes)
{
foreach ($attributes as &$attribute) {
if (is_callable($attribute) && ! is_string($attribute)) {
$attribute = $attribute($attributes);
}
if ($attribute instanceof static) {
$attribute = $attribute->create()->getKey();
}
if ($attribute instanceof Model) {
$attribute = $attribute->getKey();
}
}
return $attributes;
}
}
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