feeds drupal cafe

08.09.2011 Kyiv Drupal Cafe`

Drupal Feeds

Andriy Podanenko aka @podarok

http://drupal.org/user/116002

Kyiv Drupal Cafe`

feeds developer keynotes


POI

FeedsSource extends FeedsConfigurableFeedsSource::import

Plugins (FeedsFetcher, FeedsParser, FeedsProcessor)

Hooks Mappings

hook_feeds_processor_targets_alter()

hook_feeds_parser_sources_alter()


Manual process startImport()

$config = $this->importer->getConfig(); if ($config['process_in_background']) { $this->startBackgroundJob('import'); } else { $this->startBatchAPIJob(t('Importing'), 'import'); //method } }

function startBatchAPIJob(){$batch = array( 'title' => $title, 'operations' => array( array('feeds_batch', array($method, $this->id, $this->feed_nid)), ), ); batch_set($batch); }


Manual process feeds_batch()

function feeds_batch($method, $importer_id, $feed_nid = 0, &$context) { $context['finished'] = FEEDS_BATCH_COMPLETE; try { // main work doing here $context['finished'] = feeds_source($importer_id, $feed_nid)->$method(); } catch (Exception $e) { drupal_set_message($e->getMessage(), 'error'); }}


$this->acquireLock(); try { // Fetch. if (empty($this->fetcher_result) || FEEDS_BATCH_COMPLETE == $this->progressParsing()) { $this->fetcher_result = $this->importer->fetcher->fetch($this);//…. }

// Parse. $parser_result = $this->importer->parser->parse($this, $this->fetcher_result); module_invoke_all('feeds_after_parse', $this, $parser_result);

// Process. $this->importer->processor->process($this, $parser_result); } catch (Exception $e) { // …. } $this->releaseLock();

FeedsSource::import


Feeds hooks

function feeds_hook_info() { $hooks = array( 'feeds_after_parse', 'feeds_after_import', 'feeds_after_clear', 'feeds_processor_targets_alter', 'feeds_parser_sources_alter', );


Feeds plugins hook_feeds_plugins()

function ofeeds_feeds_plugins() { $info = array(); $info['OpenERP_Fetcher'] = array( 'name' => 'OpenERP Fetcher', 'description' => 'Fetches OpenERP objects from Models.', 'help' => 'Fetches OpenERP objects from Models. Additional help will be

in a feature', 'handler' => array( 'parent' => 'FeedsFetcher', 'class' => 'OpenERP_Fetcher', 'file' => 'OpenERP_Fetcher.inc', 'path' => drupal_get_path('module', 'ofeeds') . '/fetchers', // Feeds will look for OpenERP_Fetcher.inc in the ofeeds/fetchers directory. ), ); return $info;}


Feeds plugins● class FeedsPlugin extends FeedsConfigurable implements FeedsSourceInterfacemethods: save, sourceForm, configForm, loadMappers...

● FeedsFetcher extends FeedsPluginmethods: clear, fetch...

● FeedsParser extends FeedsPluginmethods: parse, clear...

● FeedsProcessor extends FeedsPluginmethods: process, entityType, newEntity, entityLoad,

entitySave, entityDeleteMultiple


Feeds plugins forms● configForm// forms displayed at feeds instance settings tab (admin level)FE: OpenERP_Fetcher::configForm($fs) – select model,

setting for limiting count of fetched data etc.Exportable as config array !!! (via import export clone)

// configFormSubmit,configFormValidate

● sourceForm// forms displayed at /import/$feeds_instance page and at

content type creation forms (user level)FE: FeedsFileFetcher::sourceForm($sc) – upload file form,

form for listing already uploaded files etc.

// sourceFormValidate, sourceFormSubmit

Feeds tricks

function ofeeds_ctools_plugin_api($owner, $api) { if ($owner == 'feeds' && $api == 'plugins') { return array('version' => 1); }}

function ofeeds_enable() { //clear the cache to display in Feeds as available plugin. cache_clear_all('plugins:feeds:plugins', 'cache');}

// Do not use variable_set as instances config !!!

Thanks

Andriy Podanenko @podarok

[email protected]://twitter.com/podarokhttp://facebook.com/podarokhttp://drupal.org/user/116002

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