function weather_block in Weather 6.5

Same name and namespace in other branches

1. 5.6 weather.module \weather_block()
2. 5 weather.module \weather_block()

Generate HTML for the weather block

@returns block HTML

Parameters

op operation from the URL:

delta offset:

File

./weather.module, line 222

Display <acronym title="METeorological Aerodrome Report">METAR</acronym> weather data from anywhere in the world

Code

function weather_block($op = 'list', $delta = 0) {
  global $user;
  if ($op == 'list') {
    $block[0]['info'] = t('Weather: custom user');
    $block[1]['info'] = t('Weather: location of nodes (requires Location or Node Map module)');
    $current_blocks = _weather_get_blocks_in_use();
    if (!empty($current_blocks)) {
      foreach ($current_blocks as $block_id) {

        // $block_id is at least 1, so make sure the delta is at least 2
        $block[SYSTEM_BLOCK_DELTA_START + $block_id - 1]['info'] = t('Weather: system-wide !number', array(
          '!number' => $block_id,
        ));
      }
    }
    return $block;
  }
  else {
    if ($op == 'view') {
      if ($delta == 0 and weather_custom_block_access()) {

        // Show the user's custom weather block, if there is already
        // a location configured. Otherwise, do not show the block.
        $configs_in_use = _weather_get_configs_in_use($user->uid);
        if (count($configs_in_use) == 0) {
          return;
        }
        $block['subject'] = t('Current weather');
        $block['content'] = '';
        foreach ($configs_in_use as $index) {
          $config = _weather_get_config($user->uid, $index['cid']);
          $metar = weather_get_metar($config['icao']);
          $block['content'] .= theme('weather_theming', $config, $metar);
        }
        return $block;
      }
      else {
        if ($delta == 1 and user_access('access content')) {

          // show the node location weather block
          if (arg(0) == 'node' and is_numeric(arg(1))) {
            $node = node_load(arg(1));
            $block['content'] = '';

            // This checks the location module
            if (isset($node->locations)) {

              // Iterate through all available locations and check
              // for lat/long information. If there is no information,
              // the location module return 0.0/0.0 instead of NULL values
              foreach ($node->locations as $location) {
                if ($location['latitude'] != 0 or $location['longitude'] != 0) {
                  $nearest_station = weather_get_icao_from_lat_lon($location['latitude'], $location['longitude']);
                  $config = _weather_get_config(0, 1);
                  $config = array_merge($config, $nearest_station);
                  $config['real_name'] = $config['name'];
                  $metar = weather_get_metar($config['icao']);
                  $block['content'] .= theme('weather_theming', $config, $metar);
                }
              }
            }

            // Handle CCK location fields
            // First, determine all names of location fields
            $sql = "SELECT field_name FROM {content_node_field} WHERE type='location'";
            $result = db_query($sql);

            // Cycle through all found field names.
            while ($field_name = db_result($result)) {

              // Iterate through all available locations and check
              // for lat/long information. If there is no information,
              // the location module return 0.0/0.0 instead of NULL values
              foreach ($node->{$field_name} as $location) {
                if ($location['latitude'] != 0 or $location['longitude'] != 0) {
                  $nearest_station = weather_get_icao_from_lat_lon($location['latitude'], $location['longitude']);
                  $config = _weather_get_config(0, 1);
                  $config = array_merge($config, $nearest_station);
                  $config['real_name'] = $config['name'];
                  $metar = weather_get_metar($config['icao']);
                  $block['content'] .= theme('weather_theming', $config, $metar);
                }
              }
            }

            // Handle nodemap module
            if (isset($node->nodemap_latitude_field) and isset($node->nodemap_longitude_field) and ($node->nodemap_latitude_field != 0 or $node->nodemap_longitude_field != 0)) {
              $nearest_station = weather_get_icao_from_lat_lon($node->nodemap_latitude_field, $node->nodemap_longitude_field);
              $config = _weather_get_config(0, 1);
              $config = array_merge($config, $nearest_station);
              $config['real_name'] = $config['name'];
              $metar = weather_get_metar($config['icao']);
              $block['content'] .= theme('weather_theming', $config, $metar);
            }

            // Do not show block if no lat/long information has been found
            if ($block['content'] != '') {
              $block['subject'] = t('Current weather nearby');
              return $block;
            }
          }
        }
        else {
          if ($delta >= SYSTEM_BLOCK_DELTA_START and user_access('access content')) {

            // show a system-wide weather block
            $system_block_id = SYSTEM_BLOCK_DELTA_START - $delta - 1;
            $block['subject'] = t('Current weather');
            $block['content'] = '';
            $configs_in_use = _weather_get_configs_in_use($system_block_id);
            if (count($configs_in_use) == 0) {
              $configs_in_use[] = array(
                'cid' => 1,
              );
            }
            foreach ($configs_in_use as $index) {
              $config = _weather_get_config($system_block_id, $index['cid']);
              $metar = weather_get_metar($config['icao']);
              $block['content'] .= theme('weather_theming', $config, $metar);
            }
            return $block;
          }
        }
      }
    }
  }
}