windwalker/structure

Windwalker Structure package

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Type:windwalker-package

3.4.9 2018-12-02 04:59 UTC

README

Windwalker Structure is a storage of nested array or object, help us manage multi-level structures data.

Installation via Composer

Add this to the require block in your composer.json.

{
    "require": {
        "windwalker/structure": "~3.0"
    }
}

Getting Started

use Windwalker\Structure\Structure;

$structure = new Structure;

// Set a value in the structure.
$structure->set('foo', 'bar');

// Get a value from the structure;
$value = $structure->get('foo');

Load config by Structure

use Windwalker\Structure\Structure;

$structure = new Structure;

// Load by string
$structure->loadString('{"foo" : "bar"}');

$structure->loadString('<root></root>', 'xml');

// Load by object or array
$structure->load($object);

// Load by file
$structure->loadFile($root . '/config/config.json', 'json');

Accessing a Structure by getter & setter

Get value

$structure->get('foo');

// Get a non-exists value and return default
$structure->get('foo', 'default');

// OR

$structure->get('foo') ?: 'default';

Set value

// Set value
$structure->set('bar', $value);

// Sets a default value if not already assigned.
$structure->def('bar', $default);

Accessing children value by path

$json = '{
	"parent" : {
		"child" : "Foo"
	}
}';

$structure = new Structure($json);

$structure->get('parent.child'); // return 'Foo'

$structure->set('parent.child', $value);

Append & Prepend

Support push / pop / shift / unshift methods.

$structure->set('foo.bar', array('fisrt', 'second'));

$structure->push('foo.bar', 'third');

$structure->get('foo.bar');
// Result: Array(first, second, third)

Use other separator

$structure->setSeparator('/');

$data = $structure->get('foo/bar');

Accessing a Structure as an Array

The Structure class implements ArrayAccess so the properties of the structure can be accessed as an array. Consider the following examples:

// Set a value in the structure.
$structure['foo'] = 'bar';

// Get a value from the structure;
$value = $structure['foo'];

// Check if a key in the structure is set.
if (isset($structure['foo']))
{
	echo 'Say bar.';
}

Merge Structure

Using load* methods to merge two config files.

$json1 = '{
    "field" : {
        "keyA" : "valueA",
        "keyB" : "valueB"
    }
}';

$json2 = '{
    "field" : {
        "keyB" : "a new valueB"
    }
}';

$structure->loadString($json1);
$structure->loadString($json2);

Output

Array(
    field => Array(
        keyA => valueA
        keyB => a new valueB
    )
)

Merge Another Structure

$object1 = '{
	"foo" : "foo value",
	"bar" : {
		"bar1" : "bar value 1",
		"bar2" : "bar value 2"
	}
}';

$object2 = '{
	"foo" : "foo value",
	"bar" : {
		"bar2" : "new bar value 2"
	}
}';

$structure1 = new Structure(json_decode($object1));
$structure2 = new Structure(json_decode($object2));

$structure1->merge($structure2);

If you just want to merge first level, do not hope recursive:

$structure1->merge($structure2, false); // Set param 2 to false that Structure will only merge first level

Merge to a child node:

$structure->mergeTo('foo.bar', $anotherStructure);

Dump to file.

$structure->toString();

$structure->toString('xml');

$structure->toString('ini');

Dump to one dimension

$array = array(
    'flower' => array(
        'sunflower' => 'light',
        'sakura' => 'samurai'
    )
);

$structure = new Structure($array);

// Make data to one dimension

$flatted = $structure->flatten();

print_r($flatted);

The result:

Array
(
    [flower.sunflower] => light
    [flower.sakura] => samurai
)

Using YAML

Add Symfony YAML component in composer.json

{
	"require-dev": {
		"symfony/yaml": "~3.0"
	}
}

Using yaml format

$structure->loadFile($yamlFile, 'yaml');

$structure->loadString('foo: bar', 'yaml');

// Convert to string
$structure->toString('yaml');

StructureHelper

use Windwalker\Structure\StructureHelper;

StructureHelper::loadFaile($file, $format); // File to array
StructureHelper::loadString($string, $format); // String to array
StructureHelper::toString($array, $format); // Array to string

// Use format class
$json = StructureHelper::getFormatClass('json'); // Get JsonFormat
$string = $json::structToString($array);