<?php
// $Id: related_blog.module,v 1.1.2.2 2011-01-17 03:39:03 nancyw Exp $

/**
 * @file
 * Provides block to show blog of node's author.
 */

/**
 * Implements hook_block();
 */
function related_blog_block($op = 'list', $delta = 0, $edit = array()) {
  switch ($op) {
    case 'list':
      return related_blog_block_list();

    case 'view':
      return related_blog_block_view($delta);

    case 'configure':
      return related_blog_block_configure($delta);

    case 'save':
      return related_blog_block_save($delta, $edit);
  }
}

/**
 * Function for related_blog_block(op = 'list').
 */
function related_blog_block_list() {
  return array(
    'related_blog' => array(
      'info' => t('Util: Related Blog'),
      'visibility' => 1,    /* Show only on. */
      'pages' => 'node/*',
      'cache' => BLOCK_NO_CACHE,
      ),
    );
}

/**
 * Function for related_blog_block(op = 'view').
 */
function related_blog_block_view($delta = 0) {
  $block = array();

  switch ($delta) {
    case 'related_blog':
      // Make sure it makes sense to show this.
      // That is, not on node add/edit, etc.
      $extra = arg(2);
      if ($extra) {
        return $block;
      }

      // Get configured content types.
      $types = variable_get('related_blog_types', array());

      // Get the currently displayed node.
      $node = menu_get_object();

      // Make sure it's one of our types.
      if (in_array($node->type,  $types)) {
        $account = user_load(array('uid' => $node->uid));

        // Get the current title (note that this is already sanitized).
        $title = drupal_get_title();

        // Make sure the blog code is loaded.
        module_load_include('inc', 'blog', 'blog.pages');

        // Call the blog page code.
        $block['content'] = blog_page_user($account);
        
        // Restore the title as blog_page_user will screw it up.
        drupal_set_title($title);
      }

      break;
  }

  return $block;
}

/**
 * Function for related_blog_block(op = 'configure').
 */
function related_blog_block_configure($delta = 0) {
  $form = array();

  switch ($delta) {
    case 'related_blog':
      $form['types'] = array(
        '#type' => 'checkboxes',
        '#title' => t('Show on these content types'),
        '#default_value' => variable_get('related_blog_types', array()),
        '#options' => node_get_types('names'),
        '#attributes' => array('class' => 'container-inline'),
        );
      break;
}

  return $form;
}

/**
 * Function for related_blog_block(op = 'save').
 */
function related_blog_block_save($delta = 0, $edit = array()) {
  switch ($delta) {
    case 'related_blog':
      variable_set('related_blog_types', $edit['types']);
      return;
  }
}