abstract class FeedsParser in Feeds 6

Abstract class, defines interface for parsers.

Hierarchy

• class \FeedsConfigurable
  • class \FeedsPlugin implements FeedsSourceInterface
    • class \FeedsParser

3 string references to 'FeedsParser'

feeds_plugin_type in ./feeds.module

Determines the type of a plugin.

hook_feeds_plugins in ./feeds.api.php

A hook_feeds_plugins() declares available Fetcher, Parser or Processor plugins to Feeds. For an example look at feeds_feeds_plugin(). For exposing this hook hook_ctools_plugin_api() MUST be implemented, too.

_feeds_feeds_plugins in ./feeds.plugins.inc

Break out for feeds_feed_plugins().

File

plugins/FeedsParser.inc, line 6

abstract class FeedsParser extends FeedsPlugin {

  /**
   * Parse content fetched by fetcher.
   *
   * Extending classes must implement this method.
   *
   * @param $batch
   *   FeedsImportBatch returned by fetcher.
   * @param FeedsSource $source
   *   Source information.
   */
  public abstract function parse(FeedsImportBatch $batch, FeedsSource $source);

  /**
   * Clear all caches for results for given source.
   *
   * @param FeedsSource $source
   *   Source information for this expiry. Implementers can choose to only clear
   *   caches pertaining to this source.
   */
  public function clear(FeedsSource $source) {
  }

  /**
   * Declare the possible mapping sources that this parser produces.
   *
   * @ingroup mappingapi
   *
   * @return
   *   An array of mapping sources, or FALSE if the sources can be defined by
   *   typing a value in a text field.
   *
   *   Example:
   *   @code
   *   array(
   *     'title' => t('Title'),
   *     'created' => t('Published date'),
   *     'url' => t('Feed item URL'),
   *     'guid' => t('Feed item GUID'),
   *   )
   *   @endcode
   */
  public function getMappingSources() {
    self::loadMappers();
    $sources = array();
    drupal_alter('feeds_parser_sources', $sources, feeds_importer($this->id)->config['content_type']);
    if (!feeds_importer($this->id)->config['content_type']) {
      return $sources;
    }
    $sources['parent:uid'] = array(
      'name' => t('Feed node: User ID'),
      'description' => t('The feed node author uid.'),
    );
    $sources['parent:nid'] = array(
      'name' => t('Feed node: Node ID'),
      'description' => t('The feed node nid.'),
    );
    return $sources;
  }

  /**
   * Get an element identified by $element_key of the given item.
   * The element key corresponds to the values in the array returned by
   * FeedsParser::getMappingSources().
   *
   * This method is invoked from FeedsProcessor::map() when a concrete item is
   * processed.
   *
   * @ingroup mappingapi
   *
   * @param $batch
   *   FeedsImportBatch object containing the sources to be mapped from.
   * @param $element_key
   *   The key identifying the element that should be retrieved from $source
   *
   * @return
   *   The source element from $item identified by $element_key.
   *
   * @see FeedsProcessor::map()
   * @see FeedsCSVParser::getSourceElement().
   */
  public function getSourceElement(FeedsImportBatch $batch, $element_key) {
    switch ($element_key) {
      case 'parent:uid':
        if ($batch->feed_nid && ($node = node_load($batch->feed_nid))) {
          return $node->uid;
        }
        break;
      case 'parent:nid':
        return $batch->feed_nid;
    }
    $item = $batch
      ->currentItem();
    return isset($item[$element_key]) ? $item[$element_key] : '';
  }

}

Members

Name	Modifiers	Type	Description	Overrides
FeedsConfigurable::$config	protected	property
FeedsConfigurable::$disabled	protected	property	CTools export enabled status of this object.
FeedsConfigurable::$export_type	protected	property
FeedsConfigurable::$id	protected	property
FeedsConfigurable::addConfig	public	function	Similar to setConfig but adds to existing configuration.	1
FeedsConfigurable::configDefaults	public	function	Return default configuration.	6
FeedsConfigurable::configForm	public	function	Return configuration form for this object. The keys of the configuration form must match the keys of the array returned by configDefaults().	10
FeedsConfigurable::configFormSubmit	public	function	Submission handler for configForm().	3
FeedsConfigurable::configFormValidate	public	function	Validation handler for configForm().	3
FeedsConfigurable::copy	public	function	Copy a configuration.	1
FeedsConfigurable::existing	public	function	Determine whether this object is persistent and enabled. I. e. it is defined either in code or in the database and it is enabled.	1
FeedsConfigurable::getConfig	public	function	Implementation of getConfig().	1
FeedsConfigurable::instance	public static	function	Instantiate a FeedsConfigurable object.	1
FeedsConfigurable::setConfig	public	function	Set configuration.	1
FeedsConfigurable::__get	public	function	Override magic method __get(). Make sure that $this->config goes through getConfig()
FeedsConfigurable::__isset	public	function	Override magic method __isset(). This is needed due to overriding __get().
FeedsParser::clear	public	function	Clear all caches for results for given source.
FeedsParser::getMappingSources	public	function	Declare the possible mapping sources that this parser produces.	5
FeedsParser::getSourceElement	public	function	Get an element identified by $element_key of the given item. The element key corresponds to the values in the array returned by FeedsParser::getMappingSources().	1
FeedsParser::parse	abstract public	function	Parse content fetched by fetcher.	5
FeedsPlugin::hasSourceConfig	public	function	Returns TRUE if $this->sourceForm() returns a form. Overrides FeedsSourceInterface::hasSourceConfig
FeedsPlugin::loadMappers	protected static	function	Loads on-behalf implementations from mappers/ directory.
FeedsPlugin::save	public	function	Save changes to the configuration of this object. Delegate saving to parent (= Feed) which will collect information from this object by way of getConfig() and store it. Overrides FeedsConfigurable::save
FeedsPlugin::sourceDefaults	public	function	Implementation of FeedsSourceInterface::sourceDefaults(). Overrides FeedsSourceInterface::sourceDefaults	1
FeedsPlugin::sourceDelete	public	function	A source is being deleted. Overrides FeedsSourceInterface::sourceDelete	1
FeedsPlugin::sourceForm	public	function	Callback methods, exposes source form. Overrides FeedsSourceInterface::sourceForm	3
FeedsPlugin::sourceFormValidate	public	function	Validation handler for sourceForm. Overrides FeedsSourceInterface::sourceFormValidate	2
FeedsPlugin::sourceSave	public	function	A source is being saved. Overrides FeedsSourceInterface::sourceSave	1
FeedsPlugin::__construct	protected	function	Constructor. Overrides FeedsConfigurable::__construct