Import data with feeds that is not in the source file

Question

I need support to set a field on a feeds mapping that is not in the source.

I already have some code that for some reason is not working.

If I use hook_feeds_after_parse, I can set the value but I need to use the method below (new mapping).

function  MYMODULE_cronapi($op, $job = NULL) {
    $items['TEST IMPORT'] = array(
        'description' => 'TEST IMPORT',
        'rule' => '1 * 1 * *',
        'callback' => ' MYMODULE_testImport',
    );

    return $items;
}

function MYMODULE_testImport() {
    $test_field_value = 'this is a test';
    $feeds_importer = 'test_feeds';
    $feeds_source = feeds_source($feeds_importer);
    $field_mappings = $feeds_source->importer->processor->getMappings();

    $path_to_xml = 'http://.../sites/default/files/test_content.xml';

    foreach ($field_mappings as &$mapping) {
        if ($mapping['target'] == 'field_test_field') {
            $mapping['test_field'] = $test_field_value;
        }
    }

    $feeds_source->importer->processor->addConfig(array('mappings' => $field_mappings)); 

    drupal_static_reset('FeedsProcessor::getMappings');

    $feeds_config = $feeds_source->getConfigFor($feeds_source->importer->fetcher);

    $feeds_config['source'] = $path_to_xml;

    $config = array(
        'process_in_background' => TRUE,
    );

    $feeds_source->setConfigFor($feeds_source->importer->fetcher, $feeds_config);
    $feeds_source->importer->addConfig($config);
    $feeds_source->save();
    $feeds_source->startImport();

    while (FEEDS_BATCH_COMPLETE != $feeds_source->import());
}

function MYMODULE_feeds_processor_targets_alter(array &$targets, $entity_type, $bundle) {
  if ($entity_type == 'node' && $bundle == 'test_content') {
    if (isset($targets['field_test_field'])) {
      $targets['field_test_field']['callback'] = 'MYMODULE_set_test_field';
    }
  }
}

function MYMODULE_set_test_field(FeedsSource $source, $entity, $target, array $values, array $mapping) {
    if ($source->importer->id == 'test_feeds') {
        if (!empty($mapping['test_field'])) {
            $entity->{$target}[$entity->language][0]['value'] = $mapping['test_field'];
        }
    }
}

Answer 1

1. To get the importer's machine name from the source, instead of doing $source->id, this should be $source->importer->id.

2. I don't know what you are trying to do with $mapping['_ad_area'] exactly. $mapping contains target configuration (aka mapping settings). I don't see form_callbacks on your target code. The default taxonomy reference field also doesn't have an option called '_ad_area'. If you added mapping for the 'field_ad_area' target, values coming from the source should exist in $values.

3. You say you want to provide a value that is not in your original source. If this is a fixed value, you can use the Tamper plugin "Set default value" from the Feeds Tamper module. If you are using the CSV parser, on the mapping form you can just enter a source column name that does not exist in your CSV file. Otherwise, select "Blank source".

   If you programmatically want to set a value, you can implement the hook hook_feeds_after_parse() in a custom module:

/**
 * Implements hook_feeds_after_parse().
 */
function mymodule_feeds_after_parse(FeedsSource $source, FeedsParserResult $result) {
  if ($source->importer->id != 'qc_data_generic_import') {
    return;
  }

  foreach ($result->items as &$item) {
    $item['Blank source 1'] = 'My value';
  }
}