geo_data_field_settings

geo/modules/geo_data/geo_data.module, line 69

Versions

6

geo_data_field_settings($op, $field)

Implementation of hook_field_settings().

Code

<?php
function geo_data_field_settings($op, $field) {
  $field_name = $field['field_name'];
  
  switch ($op) {
    case 'form':
      $form = array();

      $geo_tables = geo('tables', '/^content_field/');
      $options = array();
      foreach ($geo_tables as $table => $geo_field) $options[$table] = $table;
      $form['geo_data_table'] = array(
        '#type' => 'select',
        '#title' => t('Table name'),
        '#multiple' => FALSE,
        '#options' => $options,
        '#default_value' => $field['geo_data_table'],
        '#required' => TRUE,
      );

      if ($table = $field['geo_data_table']) {
        $columns = array();
        foreach (geo('table_desc', $table) as $col => $desc) {
          if (in_array($desc['type'], array_keys(geo('supported_types')))) {
            $geo_type = $desc['type'];
          }
          $columns[$col] = $desc['description'] ? $desc['description'] : $col;
        }

        $form['geo_data_key'] = array(
          '#type' => 'select',
          '#multiple' => FALSE,
          '#title' => t('Key column'),
          '#options' => $columns,
          '#default_value' => $field['geo_data_key'],
          '#required' => TRUE,
        );

        $form['geo_data_value'] = array(
          '#type' => 'select',
          '#multiple' => TRUE,
          '#title' => t('Value column'),
          '#options' => $columns,
          '#default_value' => $field['geo_data_value'],
          '#required' => TRUE,
        );

        $form['geo_data_fields'] = array(
          '#type' => 'select',
          '#multiple' => TRUE,
          '#title' => t('Additional fields'),
          '#options' => $columns,
          '#default_value' => $field['geo_data_fields'],
          '#required' => FALSE,
        );

        // TODO Store the geometry type for this field, based on table type.
        $form['geo_type'] = array('#type' => 'value', '#value' => $geo_type);
      }

      return $form;

    case 'save':
      return array('geo_data_table', 'geo_data_key', 'geo_data_value', 'geo_data_fields', 'geo_type');
    
    case 'database columns':
      return array(
        'value' => array(
          'type' => 'varchar',
          'length' => 255,
          'description' => t('Key to geospatial table values'),
        ),
      );
    
    case 'views data':
      $data = content_views_field_views_data($field);
      $table_alias = content_views_tablename($field);
      $db_info = content_database_info($field);
      $geo_alias = $table_alias .'_geo';
      $key = $field['field_name'] .'_value';

      // Add the referenced table to the joins.
      $data[$geo_alias]['table'] = array(
        'group' => t('Geospatial Data'),
        'base' => array(
          'field' => $field['geo_data_key'],
        ),
        'join' => array(
          'node' => array(
            'table' => $field['geo_data_table'],
            'field' => $field['geo_data_key'],
            'left_table' => $table_alias, 
            'left_field' => $key, 
          ),
        ),
      );

      // Switch the field handler to geo_data.
      $data[$table_alias][$key]['field']['field'] = 'geo';
      $data[$table_alias][$key]['field']['geo_table'] = $geo_alias;
      $data[$table_alias][$key]['field']['handler'] = 'views_handler_field_geo_data';

      // Switch the filter handler to geo
      $data[$table_alias][$key]['filter']['handler'] = 'views_handler_filter_geo';
      $data[$table_alias][$key]['filter']['geo_type'] = $field['geo_type'];
      $data[$table_alias][$key]['filter']['geo_table'] = $geo_alias;

      return $data;
  }
}
?>