139 lines
2.7 KiB
PHP
139 lines
2.7 KiB
PHP
<?php
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namespace SilverStripe\Control\RSS;
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use SilverStripe\Control\Director;
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use SilverStripe\ORM\FieldType\DBField;
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use SilverStripe\ORM\FieldType\DBHTMLText;
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use SilverStripe\View\ViewableData;
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use BadMethodCallException;
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/**
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* RSSFeed_Entry class
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*
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* This class is used for entries of an RSS feed.
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*
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* @see RSSFeed
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*/
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class RSSFeed_Entry extends ViewableData
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{
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/**
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* The object that represents the item, it contains all the data.
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*
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* @var mixed
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*/
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protected $failover;
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/**
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* Name of the title field of feed entries
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*
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* @var string
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*/
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protected $titleField;
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/**
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* Name of the description field of feed entries
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*
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* @var string
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*/
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protected $descriptionField;
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/**
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* Name of the author field of feed entries
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*
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* @var string
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*/
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protected $authorField;
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/**
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* Create a new RSSFeed entry.
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* @param ViewableData $entry
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* @param string $titleField
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* @param string $descriptionField
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* @param string $authorField
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*/
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public function __construct($entry, $titleField, $descriptionField, $authorField)
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{
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$this->failover = $entry;
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$this->titleField = $titleField;
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$this->descriptionField = $descriptionField;
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$this->authorField = $authorField;
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parent::__construct();
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}
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/**
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* Get the description of this entry
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*
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* @return DBField Returns the description of the entry.
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*/
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public function Title()
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{
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return $this->rssField($this->titleField);
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}
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/**
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* Get the description of this entry
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*
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* @return DBField Returns the description of the entry.
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*/
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public function Description()
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{
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$description = $this->rssField($this->descriptionField);
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// HTML fields need links re-written
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if ($description instanceof DBHTMLText) {
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return $description->obj('AbsoluteLinks');
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}
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return $description;
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}
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/**
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* Get the author of this entry
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*
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* @return DBField Returns the author of the entry.
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*/
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public function Author()
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{
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return $this->rssField($this->authorField);
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}
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/**
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* Return the safely casted field
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*
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* @param string $fieldName Name of field
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* @return DBField
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*/
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public function rssField($fieldName)
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{
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if ($fieldName) {
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return $this->failover->obj($fieldName);
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}
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return null;
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}
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/**
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* Get a link to this entry
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*
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* @return string Returns the URL of this entry
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* @throws BadMethodCallException
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*/
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public function AbsoluteLink()
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{
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if ($this->failover->hasMethod('AbsoluteLink')) {
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return $this->failover->AbsoluteLink();
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} else {
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if ($this->failover->hasMethod('Link')) {
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return Director::absoluteURL($this->failover->Link());
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}
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}
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throw new BadMethodCallException(
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$this->failover->class .
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" object has neither an AbsoluteLink nor a Link method." .
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" Can't put a link in the RSS feed", E_USER_WARNING
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);
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}
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}
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