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1 <?php |
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2 // $Id: forum.module,v 1.448.2.7 2009/06/03 18:27:48 goba Exp $ |
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3 |
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4 /** |
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5 * @file |
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6 * Enable threaded discussions about general topics. |
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7 */ |
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8 |
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9 /** |
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10 * Implementation of hook_help(). |
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11 */ |
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12 function forum_help($path, $arg) { |
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13 switch ($path) { |
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14 case 'admin/help#forum': |
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15 $output = '<p>'. t('The forum module lets you create threaded discussion forums with functionality similar to other message board systems. Forums are useful because they allow community members to discuss topics with one another while ensuring those conversations are archived for later reference. The <a href="@create-topic">forum topic</a> menu item (under <em>Create content</em> on the Navigation menu) creates the initial post of a new threaded discussion, or thread.', array('@create-topic' => url('node/add/forum'))) .'</p>'; |
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16 $output .= '<p>'. t('A threaded discussion occurs as people leave comments on a forum topic (or on other comments within that topic). A forum topic is contained within a forum, which may hold many similar or related forum topics. Forums are (optionally) nested within a container, which may hold many similar or related forums. Both containers and forums may be nested within other containers and forums, and provide structure for your message board. By carefully planning this structure, you make it easier for users to find and comment on a specific forum topic.') .'</p>'; |
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17 $output .= '<p>'. t('When administering a forum, note that:') .'</p>'; |
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18 $output .= '<ul><li>'. t('a forum topic (and all of its comments) may be moved between forums by selecting a different forum while editing a forum topic.') .'</li>'; |
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19 $output .= '<li>'. t('when moving a forum topic between forums, the <em>Leave shadow copy</em> option creates a link in the original forum pointing to the new location.') .'</li>'; |
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20 $output .= '<li>'. t('selecting <em>Read only</em> under <em>Comment settings</em> while editing a forum topic will lock (prevent new comments) on the thread.') .'</li>'; |
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21 $output .= '<li>'. t('selecting <em>Disabled</em> under <em>Comment settings</em> while editing a forum topic will hide all existing comments on the thread, and prevent new ones.') .'</li></ul>'; |
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22 $output .= '<p>'. t('For more information, see the online handbook entry for <a href="@forum">Forum module</a>.', array('@forum' => 'http://drupal.org/handbook/modules/forum/')) .'</p>'; |
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23 return $output; |
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24 case 'admin/content/forum': |
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25 return '<p>'. t('This page displays a list of existing forums and containers. Containers (optionally) hold forums, and forums hold forum topics (a forum topic is the initial post to a threaded discussion). To provide structure, both containers and forums may be placed inside other containers and forums. To rearrange forums and containers, grab a drag-and-drop handle under the <em>Name</em> column and drag the forum or container to a new location in the list. (Grab a handle by clicking and holding the mouse while hovering over a handle icon.) Remember that your changes will not be saved until you click the <em>Save</em> button at the bottom of the page.') .'</p>'; |
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26 case 'admin/content/forum/add/container': |
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27 return '<p>'. t('By grouping related or similar forums, containers help organize forums. For example, a container named "Food" may hold two forums named "Fruit" and "Vegetables", respectively.') .'</p>'; |
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28 case 'admin/content/forum/add/forum': |
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29 return '<p>'. t('A forum holds related or similar forum topics (a forum topic is the initial post to a threaded discussion). For example, a forum named "Fruit" may contain forum topics titled "Apples" and "Bananas", respectively.') .'</p>'; |
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30 case 'admin/content/forum/settings': |
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31 return '<p>'. t('These settings allow you to adjust the display of your forum topics. The content types available for use within a forum may be selected by editing the <em>Content types</em> on the <a href="@forum-vocabulary">forum vocabulary page</a>.', array('@forum-vocabulary' => url('admin/content/taxonomy/edit/vocabulary/'. variable_get('forum_nav_vocabulary', '')))) .'</p>'; |
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32 } |
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33 } |
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34 |
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35 /** |
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36 * Implementation of hook_theme() |
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37 */ |
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38 function forum_theme() { |
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39 return array( |
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40 'forums' => array( |
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41 'template' => 'forums', |
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42 'arguments' => array('forums' => NULL, 'topics' => NULL, 'parents' => NULL, 'tid' => NULL, 'sortby' => NULL, 'forum_per_page' => NULL), |
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43 ), |
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44 'forum_list' => array( |
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45 'template' => 'forum-list', |
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46 'arguments' => array('forums' => NULL, 'parents' => NULL, 'tid' => NULL), |
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47 ), |
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48 'forum_topic_list' => array( |
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49 'template' => 'forum-topic-list', |
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50 'arguments' => array('tid' => NULL, 'topics' => NULL, 'sortby' => NULL, 'forum_per_page' => NULL), |
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51 ), |
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52 'forum_icon' => array( |
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53 'template' => 'forum-icon', |
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54 'arguments' => array('new_posts' => NULL, 'num_posts' => 0, 'comment_mode' => 0, 'sticky' => 0), |
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55 ), |
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56 'forum_topic_navigation' => array( |
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57 'template' => 'forum-topic-navigation', |
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58 'arguments' => array('node' => NULL), |
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59 ), |
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60 'forum_submitted' => array( |
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61 'template' => 'forum-submitted', |
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62 'arguments' => array('topic' => NULL), |
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63 ), |
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64 ); |
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65 } |
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66 |
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67 /** |
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68 * Fetch a forum term. |
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69 * |
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70 * @param $tid |
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71 * The ID of the term which should be loaded. |
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72 * |
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73 * @return |
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74 * An associative array containing the term data or FALSE if the term cannot be loaded, or is not part of the forum vocabulary. |
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75 */ |
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76 function forum_term_load($tid) { |
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77 $result = db_query(db_rewrite_sql('SELECT t.tid, t.vid, t.name, t.description, t.weight FROM {term_data} t WHERE t.tid = %d AND t.vid = %d', 't', 'tid'), $tid, variable_get('forum_nav_vocabulary', '')); |
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78 return db_fetch_array($result); |
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79 } |
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80 |
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81 /** |
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82 * Implementation of hook_menu(). |
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83 */ |
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84 function forum_menu() { |
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85 $items['forum'] = array( |
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86 'title' => 'Forums', |
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87 'page callback' => 'forum_page', |
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88 'access arguments' => array('access content'), |
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89 'type' => MENU_SUGGESTED_ITEM, |
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90 'file' => 'forum.pages.inc', |
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91 ); |
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92 $items['admin/content/forum'] = array( |
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93 'title' => 'Forums', |
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94 'description' => 'Control forums and their hierarchy and change forum settings.', |
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95 'page callback' => 'drupal_get_form', |
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96 'page arguments' => array('forum_overview'), |
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97 'access arguments' => array('administer forums'), |
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98 'file' => 'forum.admin.inc', |
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99 ); |
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100 $items['admin/content/forum/list'] = array( |
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101 'title' => 'List', |
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102 'type' => MENU_DEFAULT_LOCAL_TASK, |
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103 'weight' => -10, |
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104 ); |
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105 $items['admin/content/forum/add/container'] = array( |
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106 'title' => 'Add container', |
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107 'page callback' => 'forum_form_main', |
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108 'page arguments' => array('container'), |
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109 'access arguments' => array('administer forums'), |
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110 'type' => MENU_LOCAL_TASK, |
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111 'parent' => 'admin/content/forum', |
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112 'file' => 'forum.admin.inc', |
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113 ); |
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114 $items['admin/content/forum/add/forum'] = array( |
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115 'title' => 'Add forum', |
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116 'page callback' => 'forum_form_main', |
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117 'page arguments' => array('forum'), |
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118 'access arguments' => array('administer forums'), |
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119 'type' => MENU_LOCAL_TASK, |
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120 'parent' => 'admin/content/forum', |
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121 'file' => 'forum.admin.inc', |
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122 ); |
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123 $items['admin/content/forum/settings'] = array( |
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124 'title' => 'Settings', |
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125 'page callback' => 'drupal_get_form', |
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126 'page arguments' => array('forum_admin_settings'), |
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127 'access arguments' => array('administer forums'), |
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128 'weight' => 5, |
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129 'type' => MENU_LOCAL_TASK, |
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130 'parent' => 'admin/content/forum', |
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131 'file' => 'forum.admin.inc', |
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132 ); |
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133 $items['admin/content/forum/edit/%forum_term'] = array( |
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134 'page callback' => 'forum_form_main', |
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135 'access arguments' => array('administer forums'), |
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136 'type' => MENU_CALLBACK, |
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137 'file' => 'forum.admin.inc', |
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138 ); |
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139 $items['admin/content/forum/edit/container/%forum_term'] = array( |
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140 'title' => 'Edit container', |
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141 'page callback' => 'forum_form_main', |
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142 'page arguments' => array('container', 5), |
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143 'access arguments' => array('administer forums'), |
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144 'type' => MENU_CALLBACK, |
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145 'file' => 'forum.admin.inc', |
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146 ); |
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147 $items['admin/content/forum/edit/forum/%forum_term'] = array( |
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148 'title' => 'Edit forum', |
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149 'page callback' => 'forum_form_main', |
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150 'page arguments' => array('forum', 5), |
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151 'access arguments' => array('administer forums'), |
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152 'type' => MENU_CALLBACK, |
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153 'file' => 'forum.admin.inc', |
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154 ); |
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155 return $items; |
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156 } |
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157 |
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158 |
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159 /** |
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160 * Implementation of hook_init(). |
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161 */ |
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162 function forum_init() { |
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163 drupal_add_css(drupal_get_path('module', 'forum') .'/forum.css'); |
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164 } |
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165 |
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166 /** |
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167 * Implementation of hook_nodeapi(). |
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168 */ |
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169 function forum_nodeapi(&$node, $op, $teaser, $page) { |
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170 // We are going to return if $node->type is not one of the node |
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171 // types assigned to the forum vocabulary. If forum_nav_vocabulary |
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172 // is undefined or the vocabulary does not exist, it clearly cannot |
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173 // be assigned to $node->type, so return to avoid E_ALL warnings. |
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174 $vid = variable_get('forum_nav_vocabulary', ''); |
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175 $vocabulary = taxonomy_vocabulary_load($vid); |
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176 if (empty($vocabulary)) { |
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177 return; |
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178 } |
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179 |
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180 // Operate only on node types assigned for the forum vocabulary. |
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181 if (!in_array($node->type, $vocabulary->nodes)) { |
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182 return; |
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183 } |
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184 |
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185 switch ($op) { |
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186 case 'view': |
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187 if ($page && taxonomy_node_get_terms_by_vocabulary($node, $vid) && $tree = taxonomy_get_tree($vid)) { |
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188 // Get the forum terms from the (cached) tree |
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189 foreach ($tree as $term) { |
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190 $forum_terms[] = $term->tid; |
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191 } |
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192 foreach ($node->taxonomy as $term_id => $term) { |
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193 if (in_array($term_id, $forum_terms)) { |
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194 $node->tid = $term_id; |
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195 } |
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196 } |
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197 // Breadcrumb navigation |
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198 $breadcrumb[] = l(t('Home'), NULL); |
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199 $breadcrumb[] = l($vocabulary->name, 'forum'); |
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200 if ($parents = taxonomy_get_parents_all($node->tid)) { |
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201 $parents = array_reverse($parents); |
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202 foreach ($parents as $p) { |
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203 $breadcrumb[] = l($p->name, 'forum/'. $p->tid); |
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204 } |
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205 } |
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206 drupal_set_breadcrumb($breadcrumb); |
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207 |
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208 if (!$teaser) { |
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209 $node->content['forum_navigation'] = array( |
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210 '#value' => theme('forum_topic_navigation', $node), |
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211 '#weight' => 100, |
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212 ); |
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213 } |
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214 } |
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215 break; |
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216 |
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217 case 'prepare': |
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218 if (empty($node->nid)) { |
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219 // New topic |
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220 $node->taxonomy[arg(3)]->vid = $vid; |
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221 $node->taxonomy[arg(3)]->tid = arg(3); |
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222 } |
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223 break; |
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224 |
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225 // Check in particular that only a "leaf" term in the associated taxonomy |
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226 // vocabulary is selected, not a "container" term. |
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227 case 'validate': |
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228 if ($node->taxonomy) { |
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229 // Extract the node's proper topic ID. |
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230 $vocabulary = $vid; |
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231 $containers = variable_get('forum_containers', array()); |
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232 foreach ($node->taxonomy as $term) { |
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233 if (db_result(db_query('SELECT COUNT(*) FROM {term_data} WHERE tid = %d AND vid = %d', $term, $vocabulary))) { |
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234 if (in_array($term, $containers)) { |
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235 $term = taxonomy_get_term($term); |
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236 form_set_error('taxonomy', t('The item %forum is only a container for forums. Please select one of the forums below it.', array('%forum' => $term->name))); |
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237 } |
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238 } |
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239 } |
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240 } |
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241 break; |
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242 |
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243 // Assign forum taxonomy when adding a topic from within a forum. |
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244 case 'presave': |
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245 // Make sure all fields are set properly: |
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246 $node->icon = !empty($node->icon) ? $node->icon : ''; |
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247 |
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248 if ($node->taxonomy && $tree = taxonomy_get_tree($vid)) { |
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249 // Get the forum terms from the (cached) tree if we have a taxonomy. |
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250 foreach ($tree as $term) { |
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251 $forum_terms[] = $term->tid; |
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252 } |
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253 foreach ($node->taxonomy as $term_id) { |
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254 if (in_array($term_id, $forum_terms)) { |
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255 $node->tid = $term_id; |
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256 } |
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257 } |
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258 $old_tid = db_result(db_query_range("SELECT t.tid FROM {term_node} t INNER JOIN {node} n ON t.vid = n.vid WHERE n.nid = %d ORDER BY t.vid DESC", $node->nid, 0, 1)); |
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259 if ($old_tid && isset($node->tid) && ($node->tid != $old_tid) && !empty($node->shadow)) { |
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260 // A shadow copy needs to be created. Retain new term and add old term. |
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261 $node->taxonomy[] = $old_tid; |
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262 } |
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263 } |
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264 break; |
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265 |
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266 case 'update': |
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267 if (empty($node->revision) && db_result(db_query('SELECT tid FROM {forum} WHERE nid=%d', $node->nid))) { |
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268 if (!empty($node->tid)) { |
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269 db_query('UPDATE {forum} SET tid = %d WHERE vid = %d', $node->tid, $node->vid); |
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270 } |
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271 // The node is removed from the forum. |
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272 else { |
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273 db_query('DELETE FROM {forum} WHERE nid = %d', $node->nid); |
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274 } |
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275 break; |
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276 } |
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277 // Deliberate no break -- for new revisions and for previously unassigned terms we need an insert. |
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278 |
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279 case 'insert': |
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280 if (!empty($node->tid)) { |
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281 db_query('INSERT INTO {forum} (tid, vid, nid) VALUES (%d, %d, %d)', $node->tid, $node->vid, $node->nid); |
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282 } |
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283 break; |
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284 |
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285 case 'delete': |
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286 db_query('DELETE FROM {forum} WHERE nid = %d', $node->nid); |
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287 break; |
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288 |
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289 case 'load': |
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290 return db_fetch_array(db_query('SELECT tid AS forum_tid FROM {forum} WHERE vid = %d', $node->vid)); |
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291 } |
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292 |
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293 return; |
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294 } |
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295 |
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296 /** |
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297 * Implementation of hook_node_info(). |
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298 */ |
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299 function forum_node_info() { |
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300 return array( |
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301 'forum' => array( |
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302 'name' => t('Forum topic'), |
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303 'module' => 'forum', |
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304 'description' => t('A <em>forum topic</em> is the initial post to a new discussion thread within a forum.'), |
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305 'title_label' => t('Subject'), |
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306 ) |
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307 ); |
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308 } |
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309 |
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310 /** |
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311 * Implementation of hook_access(). |
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312 */ |
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313 function forum_access($op, $node, $account) { |
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314 switch ($op) { |
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315 case 'create': |
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316 return user_access('create forum topics', $account) ? TRUE : NULL; |
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317 case 'update': |
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318 return user_access('edit any forum topic', $account) || (user_access('edit own forum topics', $account) && ($account->uid == $node->uid)) ? TRUE : NULL; |
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319 case 'delete': |
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320 return user_access('delete any forum topic', $account) || (user_access('delete own forum topics', $account) && ($account->uid == $node->uid)) ? TRUE : NULL; |
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321 } |
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322 } |
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323 |
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324 /** |
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325 * Implementation of hook_perm(). |
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326 */ |
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327 function forum_perm() { |
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328 return array('create forum topics', 'delete own forum topics', 'delete any forum topic', 'edit own forum topics', 'edit any forum topic', 'administer forums'); |
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329 } |
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330 |
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331 /** |
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332 * Implementation of hook_taxonomy(). |
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333 */ |
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334 function forum_taxonomy($op, $type, $term = NULL) { |
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335 if ($op == 'delete' && $term['vid'] == variable_get('forum_nav_vocabulary', '')) { |
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336 switch ($type) { |
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337 case 'term': |
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338 $results = db_query('SELECT tn.nid FROM {term_node} tn WHERE tn.tid = %d', $term['tid']); |
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339 while ($node = db_fetch_object($results)) { |
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340 // node_delete will also remove any association with non-forum vocabularies. |
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341 node_delete($node->nid); |
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342 } |
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343 |
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344 // For containers, remove the tid from the forum_containers variable. |
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345 $containers = variable_get('forum_containers', array()); |
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346 $key = array_search($term['tid'], $containers); |
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347 if ($key !== FALSE) { |
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348 unset($containers[$key]); |
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349 } |
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350 variable_set('forum_containers', $containers); |
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351 break; |
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352 case 'vocabulary': |
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353 variable_del('forum_nav_vocabulary'); |
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354 } |
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355 } |
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356 } |
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357 |
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358 /** |
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359 * Implementation of hook_form_alter(). |
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360 */ |
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361 function forum_form_alter(&$form, $form_state, $form_id) { |
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362 $vid = variable_get('forum_nav_vocabulary', ''); |
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363 if (isset($form['vid']) && $form['vid']['#value'] == $vid) { |
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364 // Hide critical options from forum vocabulary. |
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365 if ($form_id == 'taxonomy_form_vocabulary') { |
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366 $form['help_forum_vocab'] = array( |
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367 '#value' => t('This is the designated forum vocabulary. Some of the normal vocabulary options have been removed.'), |
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368 '#weight' => -1, |
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369 ); |
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370 $form['content_types']['nodes']['#required'] = TRUE; |
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371 $form['hierarchy'] = array('#type' => 'value', '#value' => 1); |
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372 $form['settings']['required'] = array('#type' => 'value', '#value' => FALSE); |
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373 $form['settings']['relations'] = array('#type' => 'value', '#value' => FALSE); |
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374 $form['settings']['tags'] = array('#type' => 'value', '#value' => FALSE); |
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375 $form['settings']['multiple'] = array('#type' => 'value', '#value' => FALSE); |
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376 unset($form['delete']); |
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377 } |
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378 // Hide multiple parents select from forum terms. |
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379 elseif ($form_id == 'taxonomy_form_term') { |
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380 $form['advanced']['parent']['#access'] = FALSE; |
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381 } |
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382 } |
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383 if ($form_id == 'forum_node_form') { |
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384 // Make the vocabulary required for 'real' forum-nodes. |
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385 $vid = variable_get('forum_nav_vocabulary', ''); |
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386 $form['taxonomy'][$vid]['#required'] = TRUE; |
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387 $form['taxonomy'][$vid]['#options'][''] = t('- Please choose -'); |
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388 } |
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389 } |
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390 |
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391 /** |
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392 * Implementation of hook_load(). |
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393 */ |
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394 function forum_load($node) { |
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395 $forum = db_fetch_object(db_query('SELECT * FROM {term_node} WHERE vid = %d', $node->vid)); |
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396 |
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397 return $forum; |
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398 } |
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399 |
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400 /** |
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401 * Implementation of hook_block(). |
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402 * |
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403 * Generates a block containing the currently active forum topics and the |
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404 * most recently added forum topics. |
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405 */ |
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406 function forum_block($op = 'list', $delta = 0, $edit = array()) { |
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407 switch ($op) { |
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408 case 'list': |
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409 $blocks[0]['info'] = t('Active forum topics'); |
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410 $blocks[1]['info'] = t('New forum topics'); |
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411 return $blocks; |
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412 |
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413 case 'configure': |
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414 $form['forum_block_num_'. $delta] = array('#type' => 'select', '#title' => t('Number of topics'), '#default_value' => variable_get('forum_block_num_'. $delta, '5'), '#options' => drupal_map_assoc(array(2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20))); |
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415 return $form; |
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416 |
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417 case 'save': |
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418 variable_set('forum_block_num_'. $delta, $edit['forum_block_num_'. $delta]); |
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419 break; |
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420 |
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421 case 'view': |
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422 if (user_access('access content')) { |
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423 switch ($delta) { |
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424 case 0: |
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425 $title = t('Active forum topics'); |
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426 $sql = db_rewrite_sql("SELECT n.nid, n.title, l.comment_count, l.last_comment_timestamp FROM {node} n INNER JOIN {term_node} tn ON tn.vid = n.vid INNER JOIN {term_data} td ON td.tid = tn.tid INNER JOIN {node_comment_statistics} l ON n.nid = l.nid WHERE n.status = 1 AND td.vid = %d ORDER BY l.last_comment_timestamp DESC"); |
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427 $result = db_query_range($sql, variable_get('forum_nav_vocabulary', ''), 0, variable_get('forum_block_num_0', '5')); |
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428 $content = node_title_list($result); |
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429 break; |
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430 |
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431 case 1: |
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432 $title = t('New forum topics'); |
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433 $sql = db_rewrite_sql("SELECT n.nid, n.title, l.comment_count FROM {node} n INNER JOIN {term_node} tn ON tn.vid = n.vid INNER JOIN {term_data} td ON td.tid = tn.tid INNER JOIN {node_comment_statistics} l ON n.nid = l.nid WHERE n.status = 1 AND td.vid = %d ORDER BY n.nid DESC"); |
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434 $result = db_query_range($sql, variable_get('forum_nav_vocabulary', ''), 0, variable_get('forum_block_num_1', '5')); |
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435 $content = node_title_list($result); |
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436 break; |
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437 } |
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438 |
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439 if (!empty($content)) { |
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440 $block['subject'] = $title; |
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441 $block['content'] = $content . theme('more_link', url('forum'), t('Read the latest forum topics.')); |
|
442 return $block; |
|
443 } |
|
444 } |
|
445 } |
|
446 } |
|
447 |
|
448 /** |
|
449 * Implementation of hook_form(). |
|
450 */ |
|
451 function forum_form(&$node, $form_state) { |
|
452 $type = node_get_types('type', $node); |
|
453 $form['title'] = array('#type' => 'textfield', '#title' => check_plain($type->title_label), '#default_value' => !empty($node->title) ? $node->title : '', '#required' => TRUE, '#weight' => -5); |
|
454 |
|
455 if (!empty($node->nid)) { |
|
456 $vid = variable_get('forum_nav_vocabulary', ''); |
|
457 $forum_terms = taxonomy_node_get_terms_by_vocabulary($node, $vid); |
|
458 // if editing, give option to leave shadows |
|
459 $shadow = (count($forum_terms) > 1); |
|
460 $form['shadow'] = array('#type' => 'checkbox', '#title' => t('Leave shadow copy'), '#default_value' => $shadow, '#description' => t('If you move this topic, you can leave a link in the old forum to the new forum.')); |
|
461 } |
|
462 |
|
463 $form['body_field'] = node_body_field($node, $type->body_label, 1); |
|
464 |
|
465 $form['#submit'][] = 'forum_submit'; |
|
466 // Assign the forum topic submit handler. |
|
467 |
|
468 return $form; |
|
469 } |
|
470 |
|
471 /** |
|
472 * Implementation of hook_term_path(). |
|
473 */ |
|
474 function forum_term_path($term) { |
|
475 return 'forum/'. $term->tid; |
|
476 } |
|
477 |
|
478 /** |
|
479 * Returns a list of all forums for a given taxonomy id |
|
480 * |
|
481 * Forum objects contain the following fields |
|
482 * -num_topics Number of topics in the forum |
|
483 * -num_posts Total number of posts in all topics |
|
484 * -last_post Most recent post for the forum |
|
485 * |
|
486 * @param $tid |
|
487 * Taxonomy ID of the vocabulary that holds the forum list. |
|
488 * @return |
|
489 * Array of object containing the forum information. |
|
490 */ |
|
491 function forum_get_forums($tid = 0) { |
|
492 |
|
493 $forums = array(); |
|
494 $vid = variable_get('forum_nav_vocabulary', ''); |
|
495 $_forums = taxonomy_get_tree($vid, $tid); |
|
496 |
|
497 if (count($_forums)) { |
|
498 |
|
499 $counts = array(); |
|
500 |
|
501 $sql = "SELECT r.tid, COUNT(n.nid) AS topic_count, SUM(l.comment_count) AS comment_count FROM {node} n INNER JOIN {node_comment_statistics} l ON n.nid = l.nid INNER JOIN {term_node} r ON n.vid = r.vid WHERE n.status = 1 GROUP BY r.tid"; |
|
502 $sql = db_rewrite_sql($sql); |
|
503 $_counts = db_query($sql); |
|
504 while ($count = db_fetch_object($_counts)) { |
|
505 $counts[$count->tid] = $count; |
|
506 } |
|
507 } |
|
508 |
|
509 foreach ($_forums as $forum) { |
|
510 if (in_array($forum->tid, variable_get('forum_containers', array()))) { |
|
511 $forum->container = 1; |
|
512 } |
|
513 |
|
514 if (!empty($counts[$forum->tid])) { |
|
515 $forum->num_topics = $counts[$forum->tid]->topic_count; |
|
516 $forum->num_posts = $counts[$forum->tid]->topic_count + $counts[$forum->tid]->comment_count; |
|
517 } |
|
518 else { |
|
519 $forum->num_topics = 0; |
|
520 $forum->num_posts = 0; |
|
521 } |
|
522 |
|
523 // This query does not use full ANSI syntax since MySQL 3.x does not support |
|
524 // table1 INNER JOIN table2 INNER JOIN table3 ON table2_criteria ON table3_criteria |
|
525 // used to join node_comment_statistics to users. |
|
526 $sql = "SELECT ncs.last_comment_timestamp, IF (ncs.last_comment_uid != 0, u2.name, ncs.last_comment_name) AS last_comment_name, ncs.last_comment_uid FROM {node} n INNER JOIN {users} u1 ON n.uid = u1.uid INNER JOIN {term_node} tn ON n.vid = tn.vid INNER JOIN {node_comment_statistics} ncs ON n.nid = ncs.nid INNER JOIN {users} u2 ON ncs.last_comment_uid=u2.uid WHERE n.status = 1 AND tn.tid = %d ORDER BY ncs.last_comment_timestamp DESC"; |
|
527 $sql = db_rewrite_sql($sql); |
|
528 $topic = db_fetch_object(db_query_range($sql, $forum->tid, 0, 1)); |
|
529 |
|
530 $last_post = new stdClass(); |
|
531 if (!empty($topic->last_comment_timestamp)) { |
|
532 $last_post->timestamp = $topic->last_comment_timestamp; |
|
533 $last_post->name = $topic->last_comment_name; |
|
534 $last_post->uid = $topic->last_comment_uid; |
|
535 } |
|
536 $forum->last_post = $last_post; |
|
537 |
|
538 $forums[$forum->tid] = $forum; |
|
539 } |
|
540 |
|
541 return $forums; |
|
542 } |
|
543 |
|
544 /** |
|
545 * Calculate the number of nodes the user has not yet read and are newer |
|
546 * than NODE_NEW_LIMIT. |
|
547 */ |
|
548 function _forum_topics_unread($term, $uid) { |
|
549 $sql = "SELECT COUNT(n.nid) FROM {node} n INNER JOIN {term_node} tn ON n.vid = tn.vid AND tn.tid = %d LEFT JOIN {history} h ON n.nid = h.nid AND h.uid = %d WHERE n.status = 1 AND n.created > %d AND h.nid IS NULL"; |
|
550 $sql = db_rewrite_sql($sql); |
|
551 return db_result(db_query($sql, $term, $uid, NODE_NEW_LIMIT)); |
|
552 } |
|
553 |
|
554 function forum_get_topics($tid, $sortby, $forum_per_page) { |
|
555 global $user, $forum_topic_list_header; |
|
556 |
|
557 $forum_topic_list_header = array( |
|
558 NULL, |
|
559 array('data' => t('Topic'), 'field' => 'n.title'), |
|
560 array('data' => t('Replies'), 'field' => 'l.comment_count'), |
|
561 array('data' => t('Created'), 'field' => 'n.created'), |
|
562 array('data' => t('Last reply'), 'field' => 'l.last_comment_timestamp'), |
|
563 ); |
|
564 |
|
565 $order = _forum_get_topic_order($sortby); |
|
566 for ($i = 0; $i < count($forum_topic_list_header); $i++) { |
|
567 if ($forum_topic_list_header[$i]['field'] == $order['field']) { |
|
568 $forum_topic_list_header[$i]['sort'] = $order['sort']; |
|
569 } |
|
570 } |
|
571 |
|
572 $term = taxonomy_get_term($tid); |
|
573 |
|
574 $sql = db_rewrite_sql("SELECT n.nid, r.tid, n.title, n.type, n.sticky, u.name, u.uid, n.created AS timestamp, n.comment AS comment_mode, l.last_comment_timestamp, IF(l.last_comment_uid != 0, cu.name, l.last_comment_name) AS last_comment_name, l.last_comment_uid, l.comment_count AS num_comments, f.tid AS forum_tid FROM {node_comment_statistics} l INNER JOIN {node} n ON n.nid = l.nid INNER JOIN {users} cu ON l.last_comment_uid = cu.uid INNER JOIN {term_node} r ON n.vid = r.vid INNER JOIN {users} u ON n.uid = u.uid INNER JOIN {forum} f ON n.vid = f.vid WHERE n.status = 1 AND r.tid = %d"); |
|
575 $sql .= tablesort_sql($forum_topic_list_header, 'n.sticky DESC,'); |
|
576 $sql .= ', n.created DESC'; // Always add a secondary sort order so that the news forum topics are on top. |
|
577 |
|
578 $sql_count = db_rewrite_sql("SELECT COUNT(n.nid) FROM {node} n INNER JOIN {term_node} r ON n.vid = r.vid AND r.tid = %d WHERE n.status = 1"); |
|
579 |
|
580 $result = pager_query($sql, $forum_per_page, 0, $sql_count, $tid); |
|
581 $topics = array(); |
|
582 while ($topic = db_fetch_object($result)) { |
|
583 if ($user->uid) { |
|
584 // folder is new if topic is new or there are new comments since last visit |
|
585 if ($topic->tid != $tid) { |
|
586 $topic->new = 0; |
|
587 } |
|
588 else { |
|
589 $history = _forum_user_last_visit($topic->nid); |
|
590 $topic->new_replies = comment_num_new($topic->nid, $history); |
|
591 $topic->new = $topic->new_replies || ($topic->timestamp > $history); |
|
592 } |
|
593 } |
|
594 else { |
|
595 // Do not track "new replies" status for topics if the user is anonymous. |
|
596 $topic->new_replies = 0; |
|
597 $topic->new = 0; |
|
598 } |
|
599 |
|
600 if ($topic->num_comments > 0) { |
|
601 $last_reply = new stdClass(); |
|
602 $last_reply->timestamp = $topic->last_comment_timestamp; |
|
603 $last_reply->name = $topic->last_comment_name; |
|
604 $last_reply->uid = $topic->last_comment_uid; |
|
605 $topic->last_reply = $last_reply; |
|
606 } |
|
607 $topics[] = $topic; |
|
608 } |
|
609 |
|
610 return $topics; |
|
611 } |
|
612 |
|
613 /** |
|
614 * Finds the first unread node for a given forum. |
|
615 */ |
|
616 function _forum_new($tid) { |
|
617 global $user; |
|
618 |
|
619 $sql = "SELECT n.nid FROM {node} n LEFT JOIN {history} h ON n.nid = h.nid AND h.uid = %d INNER JOIN {term_node} r ON n.nid = r.nid AND r.tid = %d WHERE n.status = 1 AND h.nid IS NULL AND n.created > %d ORDER BY created"; |
|
620 $sql = db_rewrite_sql($sql); |
|
621 $nid = db_result(db_query_range($sql, $user->uid, $tid, NODE_NEW_LIMIT, 0, 1)); |
|
622 |
|
623 return $nid ? $nid : 0; |
|
624 } |
|
625 |
|
626 /** |
|
627 * Process variables for forums.tpl.php |
|
628 * |
|
629 * The $variables array contains the following arguments: |
|
630 * - $forums |
|
631 * - $topics |
|
632 * - $parents |
|
633 * - $tid |
|
634 * - $sortby |
|
635 * - $forum_per_page |
|
636 * |
|
637 * @see forums.tpl.php |
|
638 */ |
|
639 function template_preprocess_forums(&$variables) { |
|
640 global $user; |
|
641 |
|
642 $vid = variable_get('forum_nav_vocabulary', ''); |
|
643 $vocabulary = taxonomy_vocabulary_load($vid); |
|
644 $title = !empty($vocabulary->name) ? $vocabulary->name : ''; |
|
645 |
|
646 // Breadcrumb navigation: |
|
647 $breadcrumb[] = l(t('Home'), NULL); |
|
648 if ($variables['tid']) { |
|
649 $breadcrumb[] = l($vocabulary->name, 'forum'); |
|
650 } |
|
651 if ($variables['parents']) { |
|
652 $variables['parents'] = array_reverse($variables['parents']); |
|
653 foreach ($variables['parents'] as $p) { |
|
654 if ($p->tid == $variables['tid']) { |
|
655 $title = $p->name; |
|
656 } |
|
657 else { |
|
658 $breadcrumb[] = l($p->name, 'forum/'. $p->tid); |
|
659 } |
|
660 } |
|
661 } |
|
662 drupal_set_breadcrumb($breadcrumb); |
|
663 drupal_set_title(check_plain($title)); |
|
664 |
|
665 if ($variables['forums_defined'] = count($variables['forums']) || count($variables['parents'])) { |
|
666 // Format the "post new content" links listing. |
|
667 $forum_types = array(); |
|
668 |
|
669 // Loop through all node types for forum vocabulary. |
|
670 foreach ($vocabulary->nodes as $type) { |
|
671 // Check if the current user has the 'create' permission for this node type. |
|
672 if (node_access('create', $type)) { |
|
673 // Fetch the "General" name of the content type; |
|
674 // Push the link with title and url to the array. |
|
675 $forum_types[$type] = array('title' => t('Post new @node_type', array('@node_type' => node_get_types('name', $type))), 'href' => 'node/add/'. str_replace('_', '-', $type) .'/'. $variables['tid']); |
|
676 } |
|
677 } |
|
678 |
|
679 if (empty($forum_types)) { |
|
680 // The user is logged-in; but denied access to create any new forum content type. |
|
681 if ($user->uid) { |
|
682 $forum_types['disallowed'] = array('title' => t('You are not allowed to post new content in the forum.')); |
|
683 } |
|
684 // The user is not logged-in; and denied access to create any new forum content type. |
|
685 else { |
|
686 $forum_types['login'] = array('title' => t('<a href="@login">Login</a> to post new content in the forum.', array('@login' => url('user/login', array('query' => drupal_get_destination())))), 'html' => TRUE); |
|
687 } |
|
688 } |
|
689 $variables['links'] = $forum_types; |
|
690 |
|
691 if (!empty($variables['forums'])) { |
|
692 $variables['forums'] = theme('forum_list', $variables['forums'], $variables['parents'], $variables['tid']); |
|
693 } |
|
694 else { |
|
695 $variables['forums'] = ''; |
|
696 } |
|
697 |
|
698 if ($variables['tid'] && !in_array($variables['tid'], variable_get('forum_containers', array()))) { |
|
699 $variables['topics'] = theme('forum_topic_list', $variables['tid'], $variables['topics'], $variables['sortby'], $variables['forum_per_page']); |
|
700 drupal_add_feed(url('taxonomy/term/'. $variables['tid'] .'/0/feed'), 'RSS - '. $title); |
|
701 } |
|
702 else { |
|
703 $variables['topics'] = ''; |
|
704 } |
|
705 |
|
706 // Provide separate template suggestions based on what's being output. Topic id is also accounted for. |
|
707 // Check both variables to be safe then the inverse. Forums with topic ID's take precedence. |
|
708 if ($variables['forums'] && !$variables['topics']) { |
|
709 $variables['template_files'][] = 'forums-containers'; |
|
710 $variables['template_files'][] = 'forums-'. $variables['tid']; |
|
711 $variables['template_files'][] = 'forums-containers-'. $variables['tid']; |
|
712 } |
|
713 elseif (!$variables['forums'] && $variables['topics']) { |
|
714 $variables['template_files'][] = 'forums-topics'; |
|
715 $variables['template_files'][] = 'forums-'. $variables['tid']; |
|
716 $variables['template_files'][] = 'forums-topics-'. $variables['tid']; |
|
717 } |
|
718 else { |
|
719 $variables['template_files'][] = 'forums-'. $variables['tid']; |
|
720 } |
|
721 |
|
722 } |
|
723 else { |
|
724 drupal_set_title(t('No forums defined')); |
|
725 $variables['links'] = array(); |
|
726 $variables['forums'] = ''; |
|
727 $variables['topics'] = ''; |
|
728 } |
|
729 } |
|
730 |
|
731 /** |
|
732 * Process variables to format a forum listing. |
|
733 * |
|
734 * $variables contains the following information: |
|
735 * - $forums |
|
736 * - $parents |
|
737 * - $tid |
|
738 * |
|
739 * @see forum-list.tpl.php |
|
740 * @see theme_forum_list() |
|
741 */ |
|
742 function template_preprocess_forum_list(&$variables) { |
|
743 global $user; |
|
744 $row = 0; |
|
745 // Sanitize each forum so that the template can safely print the data. |
|
746 foreach ($variables['forums'] as $id => $forum) { |
|
747 $variables['forums'][$id]->description = !empty($forum->description) ? filter_xss_admin($forum->description) : ''; |
|
748 $variables['forums'][$id]->link = url("forum/$forum->tid"); |
|
749 $variables['forums'][$id]->name = check_plain($forum->name); |
|
750 $variables['forums'][$id]->is_container = !empty($forum->container); |
|
751 $variables['forums'][$id]->zebra = $row % 2 == 0 ? 'odd' : 'even'; |
|
752 $row++; |
|
753 |
|
754 $variables['forums'][$id]->new_text = ''; |
|
755 $variables['forums'][$id]->new_url = ''; |
|
756 $variables['forums'][$id]->new_topics = 0; |
|
757 $variables['forums'][$id]->old_topics = $forum->num_topics; |
|
758 if ($user->uid) { |
|
759 $variables['forums'][$id]->new_topics = _forum_topics_unread($forum->tid, $user->uid); |
|
760 if ($variables['forums'][$id]->new_topics) { |
|
761 $variables['forums'][$id]->new_text = format_plural($variables['forums'][$id]->new_topics, '1 new', '@count new'); |
|
762 $variables['forums'][$id]->new_url = url("forum/$forum->tid", array('fragment' => 'new')); |
|
763 } |
|
764 $variables['forums'][$id]->old_topics = $forum->num_topics - $variables['forums'][$id]->new_topics; |
|
765 } |
|
766 $variables['forums'][$id]->last_reply = theme('forum_submitted', $forum->last_post); |
|
767 } |
|
768 // Give meaning to $tid for themers. $tid actually stands for term id. |
|
769 $variables['forum_id'] = $variables['tid']; |
|
770 unset($variables['tid']); |
|
771 } |
|
772 |
|
773 /** |
|
774 * Preprocess variables to format the topic listing. |
|
775 * |
|
776 * $variables contains the following data: |
|
777 * - $tid |
|
778 * - $topics |
|
779 * - $sortby |
|
780 * - $forum_per_page |
|
781 * |
|
782 * @see forum-topic-list.tpl.php |
|
783 * @see theme_forum_topic_list() |
|
784 */ |
|
785 function template_preprocess_forum_topic_list(&$variables) { |
|
786 global $forum_topic_list_header; |
|
787 |
|
788 // Create the tablesorting header. |
|
789 $ts = tablesort_init($forum_topic_list_header); |
|
790 $header = ''; |
|
791 foreach ($forum_topic_list_header as $cell) { |
|
792 $cell = tablesort_header($cell, $forum_topic_list_header, $ts); |
|
793 $header .= _theme_table_cell($cell, TRUE); |
|
794 } |
|
795 $variables['header'] = $header; |
|
796 |
|
797 if (!empty($variables['topics'])) { |
|
798 $row = 0; |
|
799 foreach ($variables['topics'] as $id => $topic) { |
|
800 $variables['topics'][$id]->icon = theme('forum_icon', $topic->new, $topic->num_comments, $topic->comment_mode, $topic->sticky); |
|
801 $variables['topics'][$id]->zebra = $row % 2 == 0 ? 'odd' : 'even'; |
|
802 $row++; |
|
803 |
|
804 // We keep the actual tid in forum table, if it's different from the |
|
805 // current tid then it means the topic appears in two forums, one of |
|
806 // them is a shadow copy. |
|
807 if ($topic->forum_tid != $variables['tid']) { |
|
808 $variables['topics'][$id]->moved = TRUE; |
|
809 $variables['topics'][$id]->title = check_plain($topic->title); |
|
810 $variables['topics'][$id]->message = l(t('This topic has been moved'), "forum/$topic->forum_tid"); |
|
811 } |
|
812 else { |
|
813 $variables['topics'][$id]->moved = FALSE; |
|
814 $variables['topics'][$id]->title = l($topic->title, "node/$topic->nid"); |
|
815 $variables['topics'][$id]->message = ''; |
|
816 } |
|
817 $variables['topics'][$id]->created = theme('forum_submitted', $topic); |
|
818 $variables['topics'][$id]->last_reply = theme('forum_submitted', isset($topic->last_reply) ? $topic->last_reply : NULL); |
|
819 |
|
820 $variables['topics'][$id]->new_text = ''; |
|
821 $variables['topics'][$id]->new_url = ''; |
|
822 if ($topic->new_replies) { |
|
823 $variables['topics'][$id]->new_text = format_plural($topic->new_replies, '1 new', '@count new'); |
|
824 $variables['topics'][$id]->new_url = url("node/$topic->nid", array('query' => comment_new_page_count($topic->num_comments, $topic->new_replies, $topic), 'fragment' => 'new')); |
|
825 } |
|
826 |
|
827 } |
|
828 } |
|
829 else { |
|
830 // Make this safe for the template |
|
831 $variables['topics'] = array(); |
|
832 } |
|
833 // Give meaning to $tid for themers. $tid actually stands for term id. |
|
834 $variables['topic_id'] = $variables['tid']; |
|
835 unset($variables['tid']); |
|
836 |
|
837 $variables['pager'] = theme('pager', NULL, $variables['forum_per_page'], 0); |
|
838 } |
|
839 |
|
840 /** |
|
841 * Process variables to format the icon for each individual topic. |
|
842 * |
|
843 * $variables contains the following data: |
|
844 * - $new_posts |
|
845 * - $num_posts = 0 |
|
846 * - $comment_mode = 0 |
|
847 * - $sticky = 0 |
|
848 * |
|
849 * @see forum-icon.tpl.php |
|
850 * @see theme_forum_icon() |
|
851 */ |
|
852 function template_preprocess_forum_icon(&$variables) { |
|
853 $variables['hot_threshold'] = variable_get('forum_hot_topic', 15); |
|
854 if ($variables['num_posts'] > $variables['hot_threshold']) { |
|
855 $variables['icon'] = $variables['new_posts'] ? 'hot-new' : 'hot'; |
|
856 } |
|
857 else { |
|
858 $variables['icon'] = $variables['new_posts'] ? 'new' : 'default'; |
|
859 } |
|
860 |
|
861 if ($variables['comment_mode'] == COMMENT_NODE_READ_ONLY || $variables['comment_mode'] == COMMENT_NODE_DISABLED) { |
|
862 $variables['icon'] = 'closed'; |
|
863 } |
|
864 |
|
865 if ($variables['sticky'] == 1) { |
|
866 $variables['icon'] = 'sticky'; |
|
867 } |
|
868 } |
|
869 |
|
870 /** |
|
871 * Preprocess variables to format the next/previous forum topic navigation links. |
|
872 * |
|
873 * $variables contains $node. |
|
874 * |
|
875 * @see forum-topic-navigation.tpl.php |
|
876 * @see theme_forum_topic_navigation() |
|
877 */ |
|
878 function template_preprocess_forum_topic_navigation(&$variables) { |
|
879 $output = ''; |
|
880 |
|
881 // get previous and next topic |
|
882 $sql = "SELECT n.nid, n.title, n.sticky, l.comment_count, l.last_comment_timestamp FROM {node} n INNER JOIN {node_comment_statistics} l ON n.nid = l.nid INNER JOIN {term_node} r ON n.nid = r.nid AND r.tid = %d WHERE n.status = 1 ORDER BY n.sticky DESC, ". _forum_get_topic_order_sql(variable_get('forum_order', 1)); |
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883 $result = db_query(db_rewrite_sql($sql), isset($variables['node']->tid) ? $variables['node']->tid : 0); |
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884 |
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885 $stop = $variables['prev'] = $variables['next'] = 0; |
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886 |
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887 while ($topic = db_fetch_object($result)) { |
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888 if ($stop == 1) { |
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889 $variables['next'] = $topic->nid; |
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890 $variables['next_title'] = check_plain($topic->title); |
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891 $variables['next_url'] = url("node/$topic->nid"); |
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892 break; |
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893 } |
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894 if ($topic->nid == $variables['node']->nid) { |
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895 $stop = 1; |
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896 } |
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897 else { |
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898 $variables['prev'] = $topic->nid; |
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899 $variables['prev_title'] = check_plain($topic->title); |
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900 $variables['prev_url'] = url("node/$topic->nid"); |
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901 } |
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902 } |
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903 } |
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904 |
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905 /** |
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906 * Process variables to format submission info for display in the forum list and topic list. |
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907 * |
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908 * $variables will contain: $topic |
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909 * |
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910 * @see forum-submitted.tpl.php |
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911 * @see theme_forum_submitted() |
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912 */ |
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913 function template_preprocess_forum_submitted(&$variables) { |
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914 $variables['author'] = isset($variables['topic']->uid) ? theme('username', $variables['topic']) : ''; |
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915 $variables['time'] = isset($variables['topic']->timestamp) ? format_interval(time() - $variables['topic']->timestamp) : ''; |
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916 } |
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917 |
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918 function _forum_user_last_visit($nid) { |
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919 global $user; |
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920 static $history = array(); |
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921 |
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922 if (empty($history)) { |
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923 $result = db_query('SELECT nid, timestamp FROM {history} WHERE uid = %d', $user->uid); |
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924 while ($t = db_fetch_object($result)) { |
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925 $history[$t->nid] = $t->timestamp > NODE_NEW_LIMIT ? $t->timestamp : NODE_NEW_LIMIT; |
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926 } |
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927 } |
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928 return isset($history[$nid]) ? $history[$nid] : NODE_NEW_LIMIT; |
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929 } |
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930 |
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931 function _forum_get_topic_order($sortby) { |
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932 switch ($sortby) { |
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933 case 1: |
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934 return array('field' => 'l.last_comment_timestamp', 'sort' => 'desc'); |
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935 break; |
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936 case 2: |
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937 return array('field' => 'l.last_comment_timestamp', 'sort' => 'asc'); |
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938 break; |
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939 case 3: |
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940 return array('field' => 'l.comment_count', 'sort' => 'desc'); |
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941 break; |
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942 case 4: |
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943 return array('field' => 'l.comment_count', 'sort' => 'asc'); |
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944 break; |
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945 } |
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946 } |
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947 |
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948 function _forum_get_topic_order_sql($sortby) { |
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949 $order = _forum_get_topic_order($sortby); |
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950 return $order['field'] .' '. strtoupper($order['sort']); |
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951 } |