Simple declarative data mapper for PHP 7.
AutoMapper can map data from array/object to existing array/object or marshal new ones. Mapping rules specified in declarative way using three simple definitions:
- From definition (
From::createor via short functionfrom) — maps single field from source to target. Supports chainable functions:->convert(callable $callable)— converts input value to another one via any callable;->trim()— trims value to eliminate whitespaces (suitable for strings);->default($defaultValue)— returns default value if source field is missing;->ignoreMissing()— ignores target field if source field is missing;->ignoreEmpty()— ignores target field if source field is empty.
- Aggregate definition (
Aggregate::createor via short functionaggregate) — maps multiple fields from source to single target field. Supports chainable functions:->trim()— trims aggregated value->ignoreEmpty()— ignores target field if aggregated value is empty.
- Ignore definition (
Ignore::createor via short functionignore) — simply ignores the field. - Value definition (
Value::createor via short functionvalue) — maps constant value to target field. Supports chainable functions:->trim()->ignoreEmpty()
All missing source fields can be ignored via AutoMapper::create(...)->ignoreAllMissing() modifier.
composer require acelot/automapperuse function Acelot\AutoMapper\{
field, from, value, aggregate
}
// Define mapper
$mapper = AutoMapper::create(
field('id', from('id')->convert('intval')),
field('title', from('text')->trim()),
field('url', from('link')->trim()),
field('isActive', from('is_active')->convert(function ($value) {
return $value === 1;
})->default(false)),
field('count', value(100)),
field('isEmpty', aggregate(function (SourceInterface $source) {
return !empty($source->get('title')) && !empty($source->get('url'));
})),
field('ignoreThisField', ignore())
)->ignoreAllMissing();
// Source data
$source = [
'id' => '100',
'text' => 'Very useful text. ',
'is_active' => 0
];
// Target
$target = $mapper->marshalArray($source);
var_dump($target);Output:
array(5) {
["id"]=>
int(100)
["title"]=>
string(17) "Very useful text."
["isActive"]=>
bool(false)
["count"]=>
int(100)
["isEmpty"]=>
bool(false)
}