Question

我正在尝试转换一个很常用的PHP脚本，这个脚本已经很好地作为一个块了一段时间，但现在我正在尝试将其转换为易于使用的模块，以及挑战。它将一个块放入列表中，但不将任何内容放入块中。因为我更像是一个HTML5 / CSS3极客，这对我来说有点新鲜。谁能帮助我在这里指导我？非常感谢

<code>
<?php

/**
 * @file
 * A block module that displays a local weather forcast for Reading Berks UK.
 */

function moduleone_help($path, $arg) {
  switch ($path) {
    case "admin/help#moduleone":
      return '<p>' . t("Displays the weather for a user defined region defined by <a href='#'>LINK</a>") . '</p>';
      break;
  }
} 

/**
 * Implement hook_block_info().
 */
function moduleone_block_info() {
  $blocks['moduleone'] = array(
    // The name that will appear in the block list.
    'info' => t('Module One Weather'),
    // Default setting.
    'cache' => DRUPAL_CACHE_PER_ROLE,
  );
  return $blocks;
}
/**
 * Custom content function.
 *
 * Get weather report from Yahoo
 * Output var is $output.
 *
 * @return
 *   A result set of the targeted posts.
 */
function moduleone_weather(){
    $zipcode = 'UKXX0117';
        $result = file_get_contents('http://weather.yahooapis.com/forecastrss?p=' . $zipcode . '&u=f');
    $xml = simplexml_load_string($result);

//echo htmlspecialchars($result, ENT_QUOTES, 'UTF-8');

$xml->registerXPathNamespace('yweather', 'http://xml.weather.yahoo.com/ns/rss/1.0');
    $location = $xml->channel->xpath('yweather:location');

        if(!empty($location)){
            foreach($xml->channel->item as $item){
                $current = $item->xpath('yweather:condition');
                $forecast = $item->xpath('yweather:forecast');
                $current = $current[0];
                $output = <<<END
                <h1 style="margin-bottom: 0">Weather for {$location[0]['city']}, {$location[0]['region']}</h1>
                <small>{$current['date']}</small>
                <h2>Current Conditions</h2>
                <p>
                    <span style="font-size:72px; font-weight:bold;">{$current['temp']}&deg;F</span>
                    <br/>
                    <img src="http://l.yimg.com/a/i/us/we/52/{$current['code']}.gif" style="vertical-align: middle;"/>&nbsp;
                    {$current['text']}
                </p>
                <h2>Forecast</h2>
                    {$forecast[0]['day']} - {$forecast[0]['text']}. High: {$forecast[0]['high']} Low: {$forecast[0]['low']}
                    <br/>
                    {$forecast[1]['day']} - {$forecast[1]['text']}. High: {$forecast[1]['high']} Low: {$forecast[1]['low']}
                    <br/>
                    {$forecast[2]['day']} - {$forecast[2]['text']}. High: {$forecast[2]['high']} Low: {$forecast[2]['low']}
                    </p>
END;
    }

}else{
    $output = 'No results found, please try a different zip code.';
}

function moduleone_block_view($delta = '') {
  switch ($delta) {
    case 'moduleone':
      $block['subject'] = t('Weather Conditions');
      if (user_access('access content')) {
   }

        if (empty($output)) {
          $block['content'] = t('No forcast available.');
        }
        else {
          $block['content'] = theme('item_list', array(
            'items' => $output));
        }
      }
    return $block;
  }
}</code>

Answer 1

Drupal通过你覆盖的钩子系统工作，所以你正好覆盖了hook_help，hook_block_info和hook_block_view但是没有hook_weather（好吧，至少不在核心Drupal中，尽管贡献的模块可以提供一个）所以在时刻moduleone_weather（）永远不会被调用。

你可以通过放置$ output = moduleone_weather（）;在你的hook_block_view函数中检查$ output是否为空之前。

第一个Drupal模块 - 将PHP脚本转换为Drupal 7模块

1 个答案: