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<?php
namespace Illuminate\Validation;
use Illuminate\Support\Arr;
use Illuminate\Support\Str;
class ValidationData
{
/**
* Initialize and gather data for the given attribute.
*
* @param string $attribute
* @param array $masterData
* @return array
*/
public static function initializeAndGatherData($attribute, $masterData)
{
$data = Arr::dot(static::initializeAttributeOnData($attribute, $masterData));
return array_merge($data, static::extractValuesForWildcards(
$masterData, $data, $attribute
));
}
/**
* Gather a copy of the attribute data filled with any missing attributes.
*
* @param string $attribute
* @param array $masterData
* @return array
*/
protected static function initializeAttributeOnData($attribute, $masterData)
{
$explicitPath = static::getLeadingExplicitAttributePath($attribute);
$data = static::extractDataFromPath($explicitPath, $masterData);
if (! Str::contains($attribute, '*') || Str::endsWith($attribute, '*')) {
return $data;
}
return data_set($data, $attribute, null, true);
}
/**
* Get all of the exact attribute values for a given wildcard attribute.
*
* @param array $masterData
* @param array $data
* @param string $attribute
* @return array
*/
protected static function extractValuesForWildcards($masterData, $data, $attribute)
{
$keys = [];
$pattern = str_replace('\*', '[^\.]+', preg_quote($attribute));
foreach ($data as $key => $value) {
if ((bool) preg_match('/^'.$pattern.'/', $key, $matches)) {
$keys[] = $matches[0];
}
}
$keys = array_unique($keys);
$data = [];
foreach ($keys as $key) {
$data[$key] = Arr::get($masterData, $key);
}
return $data;
}
/**
* Extract data based on the given dot-notated path.
*
* Used to extract a sub-section of the data for faster iteration.
*
* @param string $attribute
* @param array $masterData
* @return array
*/
public static function extractDataFromPath($attribute, $masterData)
{
$results = [];
$value = Arr::get($masterData, $attribute, '__missing__');
if ($value !== '__missing__') {
Arr::set($results, $attribute, $value);
}
return $results;
}
/**
* Get the explicit part of the attribute name.
*
* E.g. 'foo.bar.*.baz' -> 'foo.bar'
*
* Allows us to not spin through all of the flattened data for some operations.
*
* @param string $attribute
* @return string
*/
public static function getLeadingExplicitAttributePath($attribute)
{
return rtrim(explode('*', $attribute)[0], '.') ?: null;
}
}