ILIAS\MetaData\Paths\Factory Class Reference

Inheritance diagram for ILIAS\MetaData\Paths\Factory:

Collaboration diagram for ILIAS\MetaData\Paths\Factory:

Public Member Functions
	__construct (StructureSetInterface $structure)
	fromString (string $string)
	toElement (BaseElementInterface $to, bool $leads_to_exactly_one=false)
	Returns absolute path from root to the given element. More...
	betweenElements (BaseElementInterface $from, BaseElementInterface $to, bool $leads_to_exactly_one=false)
	Returns relative path between two given elements. More...
	custom ()
	fromString (string $string)
	toElement (BaseElementInterface $to, bool $leads_to_exactly_one=false)
	Returns absolute path from root to the given element. More...
	betweenElements (BaseElementInterface $from, BaseElementInterface $to, bool $leads_to_exactly_one=false)
	Returns relative path between two given elements. More...
	custom ()

Protected Member Functions
	setModesFromString (BuilderInterface $builder, string $string)
	addStepFromString (BuilderInterface $builder, string $string)
	addElementAsStep (BuilderInterface $builder, BaseElementInterface $element, bool $leads_to_exactly_one, bool $add_as_first)

Protected Attributes
StructureSetInterface	$structure

Detailed Description

Definition at line 29 of file Factory.php.

Constructor & Destructor Documentation

__construct()

ILIAS\MetaData\Paths\Factory::__construct

(

StructureSetInterface

$structure

)

Definition at line 33 of file Factory.php.

    {
        $this->structure = $structure;
    }

References ILIAS\MetaData\Paths\Factory\$structure.

Member Function Documentation

addElementAsStep()

ILIAS\MetaData\Paths\Factory::addElementAsStep ( BuilderInterface  $builder, BaseElementInterface  $element, bool  $leads_to_exactly_one, bool  $add_as_first  )

protected

Definition at line 174 of file Factory.php.

     : BuilderInterface {
        $builder = $builder->withNextStep(
            $element->getDefinition()->name(),
            $add_as_first
        );
 
        if ($element instanceof StructureElement) {
            return $builder;
        }
        if ($leads_to_exactly_one) {
            $id = $element->getMDID();
            $id = is_int($id) ? (string) $id : $id->value;
            $builder = $builder->withAdditionalFilterAtCurrentStep(
                FilterType::MDID,
                $id
            );
        }
 
        return $builder;
    }

addStepFromString()

ILIAS\MetaData\Paths\Factory::addStepFromString ( BuilderInterface  $builder, string  $string  )

protected

Definition at line 72 of file Factory.php.

     : BuilderInterface {
        $exploded = explode(Token::FILTER_SEPARATOR->value, strtolower($string));
        $name = StepToken::tryFrom($exploded[0]) ?? $exploded[0];
        if ($name === StepToken::SUPER) {
            $builder = $builder->withNextStepToSuperElement(false);
        } else {
            $builder = $builder->withNextStep($name, false);
        }
        $exploded = array_slice($exploded, 1);
        foreach ($exploded as $filter_string) {
            $exploded_filter = explode(
                Token::FILTER_VALUE_SEPARATOR->value,
                strtolower($filter_string)
            );
            $type = FilterType::tryFrom($exploded_filter[0]);
            $exploded_filter = array_slice($exploded_filter, 1);
            if (!is_null($type)) {
                $builder = $builder = $builder->withAdditionalFilterAtCurrentStep(
                    $type,
                    ...$exploded_filter
                );
                continue;
            }
            throw new \ilMDPathException(
                'Cannot create path, invalid filter type.'
            );
        }
        return $builder;
    }

References ILIAS\MetaData\Paths\BuilderInterface\withNextStepToSuperElement().

Referenced by ILIAS\MetaData\Paths\Factory\fromString().

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betweenElements()

ILIAS\MetaData\Paths\Factory::betweenElements	(	BaseElementInterface	$from,
		BaseElementInterface	$to,
		bool	$leads_to_exactly_one = false
	)

Returns relative path between two given elements.

If leads_to_exactly one is set true, it tries to add mdid filters where possible such that the path only leads to that specific element and not also others of the same type and position.

Implements ILIAS\MetaData\Paths\FactoryInterface.

Definition at line 132 of file Factory.php.

     : PathInterface {
        $to_and_supers = [];
        while ($to) {
            array_unshift($to_and_supers, $to);
            $to = $to->getSuperElement();
        }
 
        $builder = $this
            ->custom()
            ->withRelative(true)
            ->withLeadsToExactlyOneElement($leads_to_exactly_one);
 
        while (!in_array($from, $to_and_supers, true)) {
            $builder = $builder->withNextStepToSuperElement();
            $from = $from->getSuperElement();
            if (!isset($from)) {
                throw new \ilMDPathException(
                    'Cannot build path between elements from disjunct sets.'
                );
            }
        }
 
        $to_and_supers = array_slice(
            $to_and_supers,
            array_search($from, $to_and_supers, true) + 1
        );
        foreach ($to_and_supers as $element) {
            $builder = $this->addElementAsStep(
                $builder,
                $element,
                $leads_to_exactly_one,
                false
            );
        }
 
        return $builder->getWithoutValidation();
    }

References ILIAS\MetaData\Elements\Base\BaseElementInterface\getSuperElement().

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custom()

ILIAS\MetaData\Paths\Factory::custom

(

)

Implements ILIAS\MetaData\Paths\FactoryInterface.

Definition at line 200 of file Factory.php.

                            : BuilderInterface
    {
        return new Builder($this->structure);
    }

Referenced by ILIAS\MetaData\Paths\Factory\fromString().

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fromString()

ILIAS\MetaData\Paths\Factory::fromString

(

string

$string

)

Implements ILIAS\MetaData\Paths\FactoryInterface.

Definition at line 38 of file Factory.php.

                                              : PathInterface
    {
        $exploded = explode(Token::SEPARATOR->value, strtolower($string));
        $builder = $this->setModesFromString($this->custom(), $exploded[0]);
        $exploded = array_slice($exploded, 1);
        foreach ($exploded as $step_string) {
            $builder = $this->addStepFromString($builder, $step_string);
        }
        return $builder->get();
    }

References ILIAS\MetaData\Paths\Factory\addStepFromString(), ILIAS\MetaData\Paths\Factory\custom(), and ILIAS\MetaData\Paths\Factory\setModesFromString().

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setModesFromString()

ILIAS\MetaData\Paths\Factory::setModesFromString ( BuilderInterface  $builder, string  $string  )

protected

Definition at line 49 of file Factory.php.

     : BuilderInterface {
        $pattern = '/^(' . strtolower(Token::LEADS_TO_EXACTLY_ONE->value) .
            ')?(' . strtolower(Token::START_AT_ROOT->value) . '|' .
            strtolower(Token::START_AT_CURRENT->value) . ')$/';
        if (!preg_match($pattern, $string, $matches)) {
            throw new \ilMDPathException(
                'Cannot create path, invalid modes in input string: ' . $string
            );
        }
        if (!empty($matches[1])) {
            $builder = $builder->withLeadsToExactlyOneElement(true);
        }
        if ($matches[2] === Token::START_AT_ROOT->value) {
            $builder = $builder->withRelative(false);
        } else {
            $builder = $builder->withRelative(true);
        }
        return $builder;
    }

Referenced by ILIAS\MetaData\Paths\Factory\fromString().

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toElement()

ILIAS\MetaData\Paths\Factory::toElement	(	BaseElementInterface	$to,
		bool	$leads_to_exactly_one = false
	)

Returns absolute path from root to the given element.

If leads_to_exactly one is set true, it will add mdid filters where possible such that the path only leads to that specific element and not also others of the same type and position.

Implements ILIAS\MetaData\Paths\FactoryInterface.

Definition at line 105 of file Factory.php.

     : PathInterface {
        $builder = $this
            ->custom()
            ->withRelative(false)
            ->withLeadsToExactlyOneElement($leads_to_exactly_one);
 
        while (!$to->isRoot()) {
            $builder = $this->addElementAsStep(
                $builder,
                $to,
                $leads_to_exactly_one,
                true
            );
            $to = $to->getSuperElement();
            if (!isset($to)) {
                throw new \ilMDPathException(
                    'Cannot build path from element without root.'
                );
            }
        }
 
        return $builder->getWithoutValidation();
    }

References ILIAS\MetaData\Elements\Base\BaseElementInterface\getSuperElement().

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Field Documentation

$structure

StructureSetInterface ILIAS\MetaData\Paths\Factory::$structure

protected

Definition at line 31 of file Factory.php.

Referenced by ILIAS\MetaData\Paths\Factory\__construct().

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The documentation for this class was generated from the following file:

• components/ILIAS/MetaData/classes/Paths/Factory.php