Both the subject and the direction need to be specified when expressing an order. More...

Collaboration diagram for ILIAS\Data\Order:

Public Member Functions
	__construct (string $subject, string $direction)

	append (string $subject, string $direction)

	get ()

	join ($init, callable $fn)

Data Fields
const	ASC = 'ASC'

const	DESC = 'DESC'

Protected Member Functions
	checkSubject (string $subject)

	checkDirection (string $direction)

Protected Attributes
array	$order = []

Detailed Description

Both the subject and the direction need to be specified when expressing an order.

Author: Nils Haagen nils..nosp@m.haag.nosp@m.en@co.nosp@m.ncep.nosp@m.ts-an.nosp@m.d-tr.nosp@m.ainin.nosp@m.g.de

Definition at line 12 of file Order.php.

Constructor & Destructor Documentation

◆ __construct()

ILIAS\Data\Order::__construct	(	string	$subject,
		string	$direction
	)

Definition at line 22 of file Order.php.

    {
        $this->checkDirection($direction);
        $this->order[$subject] = $direction;
    }

References ILIAS\Data\Order\checkDirection().

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Member Function Documentation

◆ append()

ILIAS\Data\Order::append	(	string	$subject,
		string	$direction
	)

Definition at line 42 of file Order.php.

                                                              : Order
    {
        $this->checkSubject($subject);
        $this->checkDirection($direction);
        $clone = clone $this;
        $clone->order[$subject] = $direction;
        return $clone;
    }

References ILIAS\Data\Order\checkDirection(), and ILIAS\Data\Order\checkSubject().

Referenced by orderTest\testAppend(), orderTest\testInvalidDirection(), and orderTest\testInvalidSubject().

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◆ checkDirection()

ILIAS\Data\Order::checkDirection ( string $direction )

protected

Definition at line 35 of file Order.php.

                                                        : void
    {
        if ($direction !== self::ASC && $direction !== self::DESC) {
            throw new \InvalidArgumentException("Direction bust be Order::ASC or Order::DESC.", 1);
        }
    }

Referenced by ILIAS\Data\Order\__construct(), and ILIAS\Data\Order\append().

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◆ checkSubject()

ILIAS\Data\Order::checkSubject ( string $subject )

protected

Definition at line 28 of file Order.php.

                                                    : void
    {
        if (array_key_exists($subject, $this->order)) {
            throw new \InvalidArgumentException("already sorted by subject '$subject'", 1);
        }
    }

Referenced by ILIAS\Data\Order\append().

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◆ get()

ILIAS\Data\Order::get ( )

Returns: array<string, string>

Definition at line 54 of file Order.php.

                         : array
    {
        return $this->order;
    }

References ILIAS\Data\Order\$order.

Referenced by orderTest\testAppend(), and orderTest\testValues().

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◆ join()

ILIAS\Data\Order::join	(		$init,
		callable	$fn
	)

Definition at line 59 of file Order.php.

    {
        $ret = $init;
        foreach ($this->order as $key => $value) {
            $ret = $fn($ret, $key, $value);
        }
        return $ret;
    }