public function testExpandKeys()
{
$key = 'foo.*.bar';
$size = 2;
$keys = Arr::expandKeys($key, $size);
$this->assertEquals('foo.0.bar', $keys[0]);
$this->assertEquals('foo.1.bar', $keys[1]);
$key = 'foo.*.bar.*.beans';
$size = 2;
$keys = Arr::expandKeys($key, $size);
$this->assertEquals('foo.0.bar.0.beans', $keys[0]);
$this->assertEquals('foo.0.bar.1.beans', $keys[1]);
$this->assertEquals('foo.1.bar.0.beans', $keys[2]);
$this->assertEquals('foo.1.bar.1.beans', $keys[3]);
}
/**
* Transforms the input array into the output array based on the rules
* stated in the configuration file.
*
* @return array
*/
public function transform($root = '')
{
$output = [];
$array = Arr::dot($this->feed_data);
$rules = Arr::dot($this->rules);
$all_rules = [];
foreach ($rules as $key => $value) {
if (strpos($key, '*')) {
$new_keys = Arr::expandKeys($key, $this->expand_size);
$new_values = Arr::expandKeys($value, $this->expand_size);
$new_rules = array_combine($new_keys, $new_values);
foreach ($new_rules as $new_key => $new_rule) {
if (array_key_exists($new_rule, $array)) {
$all_rules[$new_key] = $new_rule;
}
}
} else {
$all_rules[$key] = $value;
}
}
foreach ($all_rules as $k => $v) {
Arr::set($output, $k, Arr::get($array, $v));
}
return $output;
}
