NatLibFi/Skosmos

<?php

/**
 * A class for breadcrumb concept hierarchy paths
 */
class Breadcrumb
{
    /** a label for the term doesn't need to be a prefLabel */
    private $prefLabel;
    /** uri of the concept */
    private $uri;
    /** an array of narrower concepts */
    private $narrowerConcepts;
    /** used for storing the hidden labels */
    private $hiddenLabel;

    /**
     * Creating a new breadcrumb object requires a uri and a preflabel.
     * @param string $uri
     * @param string $prefLabel
     */
    public function __construct($uri, $prefLabel)
    {
        $this->narrowerConcepts = array();
        $this->uri = $uri;
        $this->prefLabel = $prefLabel;
    }

    /**
     * Hides the prefLabel and stores the value as a hiddenLabel.
     */
    public function hideLabel()
    {
        if (!$this->hiddenLabel) {
            $this->hiddenLabel = $this->prefLabel;
        }

        $this->prefLabel = '...';
    }

    /**
     * Used for adding narrower relationships to a Breadcrumb concept
     * @param Breadcrumb $concept
     */
    public function addNarrower($concept)
    {
        $this->narrowerConcepts[$concept->uri] = $concept;
    }

    /**
     * Getter for the prefLabel value
     */
    public function getPrefLabel()
    {
        return $this->prefLabel;
    }

    /**
     * Getter for the URI value
     */
    public function getUri()
    {
        return $this->uri;
    }

    /**
     * Getter for the narrower concepts array
     */
    public function getNarrowerConcepts()
    {
        return $this->narrowerConcepts;
    }

    /**
     * Getter for the hidden prefLabel value
     */
    public function getHiddenLabel()
    {
        return $this->hiddenLabel;
    }
}