/**
* @param callable $callable
* @param string[] $paramMap
* @return \Closure
*/
public static function fnBindFieldsToParams($callable, $paramMap)
{
return function ($record) use($callable, $paramMap) {
$params = Sequence::make($paramMap)->map(FnGen::fnPluckFrom($record))->to_a();
return call_user_func_array($callable, $params);
};
}
public function testFnPluckFrom()
{
$from = range(1, 10);
$fn = FnGen::fnPluckFrom($from);
foreach ($from as $key => $value) {
$this->assertEquals($value, $fn($key));
}
$from = array('apple' => 'A', 'banana' => 'B', 'orange' => 'O', 'pineapple' => 'P');
$fn = FnGen::fnPluckFrom($from);
foreach ($from as $key => $value) {
$this->assertEquals($value, $fn($key));
}
$this->assertNull($fn('pear'));
$fn = FnGen::fnPluckFrom($from, 'fruit');
$this->assertEquals('fruit', $fn('pear'));
}
