public function testDot()
{
$array = Arr::dot(['foo' => ['bar' => 'baz']]);
$this->assertEquals(['foo.bar' => 'baz'], $array);
$array = Arr::dot([]);
$this->assertEquals([], $array);
$array = Arr::dot(['foo' => []]);
$this->assertEquals(['foo' => []], $array);
$array = Arr::dot(['foo' => ['bar' => []]]);
$this->assertEquals(['foo.bar' => []], $array);
}
/**
* Transforms the input array into the output array based on the rules
* stated in the configuration file.
*
* @return array
*/
public function transform($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;
}
