farmOS/farm_crop.module

<?php
/**
 * @file
 * Code for the Farm Crop feature.
 */

include_once 'farm_crop.features.inc';

/**
 * Implements hook_menu_local_tasks_alter().
 */
function farm_crop_menu_local_tasks_alter(&$data, $router_item, $root_path) {

  // Define actions.
  $actions = array(
    'crop' => array(
      'title' => t('Add a crop'),
      'href' => 'admin/structure/taxonomy/farm_crops/add',
    ),
    'harvest' => array(
      'title' => t('Add a harvest'),
      'href' => 'log/add/farm_harvest',
    ),
    'input' => array(
      'title' => t('Add an input'),
      'href' => 'log/add/farm_input',
    ),
    'planting' => array(
      'title' => t('Add a planting'),
      'href' => 'farm/asset/add/planting',
    ),
    'seeding' => array(
      'title' => t('Add a seeding'),
      'href' => 'log/add/farm_seeding',
    ),
    'transplanting' => array(
      'title' => t('Add a transplanting'),
      'href' => 'log/add/farm_transplanting',
    ),
  );

  // Define actions for various paths.
  $path_actions = array(
    'farm/area/%/inputs' => array('input'),
    'farm/area/%/plantings' => array('planting'),
    'farm/asset/%' => array('seeding', 'transplanting', 'harvest', 'input'),
    'farm/asset/%/harvests' => array('harvest'),
    'farm/asset/%/inputs' => array('input'),
    'farm/asset/%/seedings' => array('seeding'),
    'farm/asset/%/transplantings' => array('transplanting'),
    'farm/crop/%/plantings' => array('planting'),
    'farm/crops' => array('crop', 'planting'),
    'farm/crops/harvests' => array('harvest'),
    'farm/crops/inputs' => array('input'),
    'farm/crops/plantings' => array('planting'),
    'farm/crops/seedings' => array('seeding'),
    'farm/crops/transplantings' => array('transplanting'),
    'taxonomy/term/%' => array('input'),
  );

  // Add actions depending on the root path.
  if (array_key_exists($root_path, $path_actions)) {
    foreach ($path_actions[$root_path] as $action) {
      $output = array(
        '#theme' => 'menu_local_action',
        '#link' => array(
          'title' => $actions[$action]['title'],
          'href' => $actions[$action]['href'],
          'localized_options' => array(
            'query' => array(
              'destination' => $root_path,
            ),
          ),
        ),
      );

      // If this is a farm asset path...
      if (substr($root_path, 0, 12) == 'farm/asset/%') {

        // Get the asset id from the path.
        $asset_id = check_plain(arg(2));

        // Load the asset.
        $farm_asset = farm_asset_load($asset_id);

        // If the farm asset is not a planting, bail.
        if (empty($farm_asset->type) || $farm_asset->type != 'planting') {
          continue;
        }

        // Set the destination to the farm asset page.
        $output['#link']['localized_options']['query']['destination'] = 'farm/asset/' . $asset_id;

        // Set the farm_asset query string to the asset id. This will be used to
        // prepopulate asset reference fields in log entities.
        // See hook_form_alter() below
        $output['#link']['localized_options']['query']['farm_asset'] = $asset_id;
      }

      // Or, if this is a farm area path...
      elseif ($root_path == 'taxonomy/term/%' || substr($root_path, 0, 11) == 'farm/area/%') {

        // Get the area id from the path.
        $area_id = check_plain(arg(2));

        // Load the area.
        $farm_area = taxonomy_term_load($area_id);

        // If the taxonomy term is not a farm_area, bail.
        if (empty($farm_area->vocabulary_machine_name) || $farm_area->vocabulary_machine_name != 'farm_areas') {
          continue;
        }

        // Set the destination to the farm asset page.
        $output['#link']['localized_options']['query']['destination'] = 'taxonomy/term/' . $area_id;

        // Set the farm_area query string to the area id. This will be used to
        // prepopulate area(s) reference fields in log entities.
        // See hook_form_alter() below
        $output['#link']['localized_options']['query']['farm_area'] = $area_id;
      }

      // Add the action output.
      $data['actions']['output'][] = $output;
    }
  }
}

/**
 * Implements hook_form_alter().
 */
function farm_crop_form_alter(&$form, &$form_state, $form_id) {

  // If this is a log form with a planting reference field...
  if ($form_id == 'log_form' && !empty($form['field_farm_planting'])) {

    // Alter the form with the farm_log helper function.
    farm_log_form_prepopulate_asset($form, 'field_farm_planting');
  }
}

/**
 * Implements hook_farm_area_links().
 */
function farm_crop_farm_area_links($id) {
  return array(
    array(
      'title' => t('Inputs'),
      'href' => 'farm/area/' . $id . '/inputs',
      'weight' => 10,
    ),
    array(
      'title' => t('Plantings'),
      'href' => 'farm/area/' . $id . '/plantings',
    ),
  );
}