11. จับมารวมกัน

ได้ดังนี้
$ cd /var/www/drupal
$ mkdir -p sites/all/module/onthisdate

ไฟล์ info
$ vi onthisdate.info

; $Id$
name = On this date
description = A block module that lists links to content such as blog entries or forum discussions that were created one week ago.
core = 6.x

ไฟล์ module
$ vi onthisdate.module

<?php
/**
* Display help and module information
* @param path which path of the site we're displaying help
* @param arg array that holds the current path as would be returned from arg() function
* @return help text for the path
*/
function onthisdate_help($path, $arg) {
  $output = '';
  switch ($path) {
    case "admin/help#onthisdate":
      $output = '<p>'.  t("Displays links to nodes created on this date") .'</p>';
      break;
  }
  return $output;
} // function onthisdate_help

/**
* Valid permissions for this module
* @return array An array of valid permissions for the onthisdate module
*/
function onthisdate_perm() {
  return array('access onthisdate content', 'administer onthisdate');
} // function onthisdate_perm

/**
* Generate HTML for the onthisdate block
* @param op the operation from the URL
* @param delta offset
* @returns block HTML
*/
function onthisdate_block($op='list', $delta=0) {
  // listing of blocks, such as on the admin/block page
  if ($op == "list") {
    $block[0]["info"] = t('On This Date');
    return $block;
  } else if ($op == 'view') {

    // our block content
    // Get today's date
    $today = getdate();

    // calculate midnight one week ago
    $start_time = mktime(0, 0, 0,
                         $today['mon'], ($today['mday'] - 7), $today['year']);

    // we want items that occur only on the day in question, so  
    // calculate 1 day
    $end_time = $start_time + 86400; 
    // 60 * 60 * 24 = 86400 seconds in a day
  }

  //We'll use db_query() to get the records (i.e. the database rows) with our SQL query
  $limitnum = variable_get("onthisdate_maxdisp", 3);

  $query = "SELECT nid, title, created FROM " .
           "{node} WHERE created >= %d " .
           "AND created <= %d";

  $queryResult = db_query_range($query, $start_time, $end_time, 0, $limitnum);

  // content variable that will be returned for display   
  $block_content = '<ul>';
  while ($links = db_fetch_object($queryResult)) {
    $block_content .=  '<li>'.l($links->title, 'node/'. $links->nid) .'</li>';
  }

  // check to see if there was any content before setting up
  //  the block
  if ($block_content == '<ul>') {
    /* No content from a week ago.  If we return nothing, the block
     * doesn't show, which is what we want. */
    return;
  }

  $block_content .= '</ul>';

  // add a more link to our page that displays all the links
  $block_content .=
    "<div class=\"more-link\">".
    l(
      t("more"),
      "onthisdate",
      array(
        "title" => t("More events on this day.")
      )
    )."</div>";

  // set up the block 
  $block['subject'] = 'On This Date'; 
  $block['content'] = $block_content;
  return $block;
} // end onthisdate_block

function onthisdate_admin() {
  $form['onthisdate_maxdisp'] = array(
    '#type' => 'textfield',
    '#title' => t('Maximum number of links'),
    '#default_value' => variable_get('onthisdate_maxdisp', 3),
    '#size' => 2,
    '#maxlength' => 2,
    '#description' => t("The maximum number of links to display in the block."),
    '#required' => TRUE,
  );

  return system_settings_form($form);
}

function onthisdate_menu() {
  $items = array();

  //this was created earlier in tutorial 7.
  $items['admin/settings/onthisdate'] = array(
    'title' => 'On this date module settings',
    'description' => 'Description of your On this date settings control',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('onthisdate_admin'),
    'access arguments' => array('access administration pages'),
    'type' => MENU_NORMAL_ITEM,
   );

  //this is added in tutorial 9.
  $items['onthisdate'] = array(
    'title' => 'On this date',
    'page callback' => 'onthisdate_all',
    'access arguments' => array('access onthisdate content'),
    'type' => MENU_CALLBACK,
  );

  return $items;
}

function onthisdate_admin_validate($form, &$form_state) {
  $maxdisp = $form_state['values']['onthisdate_maxdisp'];
  if (!is_numeric($maxdisp)) {
    form_set_error('onthisdate_maxdisp', t('You must select a number for the maximum number of links.'));
  }
  else if ($maxdisp <= 0) {
    form_set_error('onthisdate_maxdisp', t('Maximum number of links must be positive.'));
  }
}

function onthisdate_all() {
  // content variable that will be returned for display
  $page_content = '';

  // Get today's date
  $today = getdate();

  // calculate midnight one week ago
  $start_time = mktime(0, 0, 0, $today['mon'], ($today['mday'] - 7), $today['year']);

  // we want items that occur only on the day in question,
  // so calculate 1 day
  $end_time = $start_time + 86400;
  // 60 * 60 * 24 = 86400 seconds in a day

  $query = "SELECT nid, title, created FROM " .
           "{node} WHERE created >= '%d' " .
           " AND created <= '%d'";

  // get the links (no range limit here)
  $queryResult =  db_query($query, $start_time, $end_time);
  while ($links = db_fetch_object($queryResult)) {
    $page_content .= l($links->title, 'node/'.$links->nid).'<br />';
  }

  // check to see if there was any content before
  // setting up the block
  if ($page_content == '') {
    // no content from a week ago, let the user know
    $page_content = "No events occurred on this site on this date in history.";
  }
  return $page_content;
}
?>

ติดตั้ง
ติดอยู่แล้ว

เปิดใช้

• URL admin/build/module กาถูกหน้า onthisdate
• URL admin/user/permissions เลือกกาถูกข้ออนุญาตที่เกี่ยวข้องกับ onthisdate

ตั้งค่า

• URL admin/settings/onthisdate ตั้งจำนวนหัวข้อ
• ทำเป็นบล๊อกผ่าน URL admin/build/block เลือกกาถูก On this date

ทดสอบ
ดูที่บล๊อก On this date ตามต้องการ