comment.module 67.3 KB
Newer Older
1
<?php
2
// $Id$
Dries's avatar
 
Dries committed
3

Dries's avatar
 
Dries committed
4
function comment_help($section = "admin/help#comment") {
Dries's avatar
 
Dries committed
5 6 7
  $output = "";

  switch ($section) {
Dries's avatar
 
Dries committed
8
    case 'admin/help#comment':
Dries's avatar
 
Dries committed
9 10 11 12 13 14 15 16 17 18 19 20
      $output = t("
      <p>When enabled, the Drupal comment module creates a discussion board for each Drupal node. Users can post comments to discuss a forum topic, weblog post, collaborative book page, etc.</p>
      <h3>User control of comment display</h3>
      <p>Attached to each comment board is a control panel for customizing the way that comments are displayed. Users can control the chronological ordering of posts (newest or oldest first) and the number of posts to display on each page. Additional settings include:</p>
      <ul>
      <li><strong>Threaded</strong> -- Displays the posts grouped according to conversations and subconversations, much like the subject view of an email client.</li>
      <li><strong>Flat</strong> --  Displays the posts in chronological order, in the order in which they are posted.</li>
      <li><strong>Expanded</strong> -- Displays the title and text for each post.</li>
      <li><strong>Collapsed</strong> -- Displays only the title for each post.</li>
      </ul>
      <p>When a user chooses <i>save settings</i>, the comments are then redisplayed using the user's new choices. Administrators can set the default settings for the comment control panel, along with other comment defaults, in <a href=\"%comment-config\">administer &raquo; configuration &raquo; modules &raquo; comment</a>.</p>
      <p>NOTE: When comment moderation is enabled, users will have another control panel option to control thresholds (see below).</p>
Dries's avatar
 
Dries committed
21

Dries's avatar
 
Dries committed
22 23 24 25 26 27 28 29 30 31 32
      <h3>Additional comment configurations</h3>
      <p>Comments behave like other user submissions in Drupal. Filters, smileys and HTML that work in nodes will also work with content. To prevent a single user from spamming the web site with too many comments, administrators can set a comment throttle in <a href=\"%site-config\">administer &raquo; configuration</a> under <i>Submission settings</i>.</p>
      <p>Administrators can control access to various comment module functions through <a href=\"%user-permissions\">administer &raquo; accounts &raquo; permissions</a>. Know that in a new Drupal installation, all comment permissions are disabled by default. The choice of which permissions to grant to which roles (groups of users) is left up to the site administrator.</p>
      <p>The following permissions can be enabled for anonymous users, authenticated users, or any other user roles that the administrator chooses to define:</p>
      <ul>
      <li><strong>Access comments</strong> -- Allows users to view comments.</li>
      <li><strong>Administrate comments</strong> -- Allows users complete control over configuring, editing and deleting all comments on the site. Best reserved for <strong>very</strong> trusted users.</li>
      <li><strong>Moderate comments</strong> -- Allows users to rate comment postings (see more on moderation below).</li>
      <li><strong>Post comments</strong> -- Allows users to post comments into an administrator moderation queue. Administrators then post the comment to the site.</li>
      <li><strong>Post comments without approval</strong> -- Allows users to directly post comments. This bypasses the administrator moderation queue.</li>
      </ul>
Dries's avatar
 
Dries committed
33

Dries's avatar
 
Dries committed
34 35 36 37 38 39 40
      <h3>Notification of new comments</h3>
      <p>Drupal provides specific features to inform site members when new comments have been posted:</p>
      <ul>
      <li>On the home page, Drupal displays the total number of comments attached to each node, and tracks comments read by individual site members. Members which have logged in will see a notice accompanying nodes which contain comments that they have not read.</li>
      <li>The <i>tracker</i> module, disabled by default, displays all the site's recent posts.  There is a link to the <a href=\"%tracker\">recent posts</a> page in the navigation block.  This page is a useful way to browse new or updated nodes and comments. Content which the user has not yet read is tagged with a red star (this graphic depends on the current theme). Visit the comment board for any node, and Drupal will display a red <i>new</i> label beside the text of unread comments.</li>
      <li>Some administrators may want to <a href=\"%download-notify\">download</a>, install and configure the notify module. Users can then request that Drupal send them an email when new comments are posted (the notify module requires that cron.php be configured properly).</li>
      </ul>
Dries's avatar
 
Dries committed
41

Dries's avatar
 
Dries committed
42 43 44 45
      <h3>Comment moderation</h3>
      <p>On sites with active commenting from users, the administrator can turn over comment moderation to the community. </p>
      <p>With comment moderation, each comment is automatically assigned an initial rating. As users read comments, they can apply a vote which affects the comment rating. At the same time, users have an additional option in the control panel which allows them to set a threshold for the comments they wish to view. Those comments with ratings lower than the set threshold will not be shown.</p>
      <p>To enable moderation, the administrator must grant <a href=\"%permission\">moderate comments</a> permissions. Then, a number of options in <a href=\"%comment-moderation\">administer &raquo; comments &raquo; moderation</a> must be configured.</p>
Dries's avatar
 
Dries committed
46

Dries's avatar
 
Dries committed
47 48 49 50 51 52 53 54 55 56 57 58
      <h4>Moderation votes</h4>
      <p>The first step is to create moderation labels which allow users to rate a comment.  Go to <a href=\"%comment-votes\">administer &raquo; comments &raquo; moderation &raquo; votes</a>. In the <i>vote</i> field, enter the textual labels which users will see when casting their votes. Some examples are</p>
      <ul>
      <li>Excellent +3</li>
      <li>Insightful +2</li>
      <li>Caught My Attention +1</li>
      <li>Useful +1</li>
      <li>Redundant -1</li>
      <li>Flame -3</li>
      </ul>
      <p>So that users know how their votes affect the comment, these examples include the vote value as part of the label, although that is optional.</p>
      <p>Using the weight option, you can control the order in which the votes appear to users. Setting the weight heavier (positive numbers) will make the vote label appear at the bottom of the list. Lighter (a negative number) will push it to the top. To encourage positive voting, a useful order might be higher values, positive votes, at the top, with negative votes at the bottom.</p>
Dries's avatar
 
Dries committed
59

Dries's avatar
 
Dries committed
60
      <h4>Moderator vote/values matrix</h4>
Dries's avatar
 
Dries committed
61

Dries's avatar
 
Dries committed
62 63 64 65 66 67
      <p>Next go to <a href=\"%comment-matrix\">administer &raquo; comments &raquo; moderation &raquo; matrix</a>. Enter the values for the vote labels for each permission role in the vote matrix. The values entered here will be used to create the rating for each comment.</p>
      <p>NOTE: Comment ratings are calculated by averaging user votes with the initial rating.</p>
      <h4>Creating comment thresholds</h4>
      <p>In <a href=\"%comment-thresholds\">administer &raquo; comments &raquo; moderation &raquo; thresholds</a>, you'll have to create some comment thresholds to make the comment rating system useful. When comment moderation is enabled and the thresholds are created, users will find another comment control panel option for selecting their thresholds. They'll use the thresholds you enter here to filter out comments with low ratings. Consequently, you'll probably want to create more than one threshold to give users some flexibility in filtering comments.</p>
      <p>When creating the thresholds, note that the <i>Minimum score</i> is asking you for the lowest rating that a comment can have in order to be displayed.</p>
      <p>To see a common example of how thresholds work, you might visit <a href=\"%slashdot\">Slashdot</a> and view one of their comment boards associated with a story. You can reset the thresholds in their comment control panel.</p>
Dries's avatar
 
Dries committed
68

Dries's avatar
 
Dries committed
69 70
      <h4>Initial comment scores</h4>
      <p>Finally, you may want to enter some <i>initial comment scores</i>. In <a href=\"%comment-initial\">administer &raquo; comments &raquo; initial comment scores</a> you can assign a beginning rating for all comments posted by a particular permission role. If you do not assign any initial scores, Drupal will assign a rating of <strong>0</strong> as the default.</p>", array("%comment-config" => url("admin/system/modules/comment"), "%site-config" => url("admin/system"), "%user-permissions" => url("admin/user/permission"), "%tracker" => url("tracker"), "%download-notify" => "http://drupal.org/project/releases", "%permission" => url("admin/user/permission"), "%comment-moderation" => url("admin/comment/moderation"), "%comment-votes" => url("admin/comment/moderation/votes"), "%comment-matrix" => url("admin/comment/moderation/matrix"), "%comment-thresholds" => url("admin/comment/moderation/filters"), "%slashdot" => " http://slashdot.org", "%comment-initial" => url("admin/comment/moderation/roles")));
Dries's avatar
 
Dries committed
71
      break;
Dries's avatar
 
Dries committed
72
    case 'admin/system/modules#description':
Dries's avatar
 
Dries committed
73 74 75
      $output = t("Enables user to comment on content (nodes).");
      break;
    case 'admin/system/modules/comment':
76
      $output = t("Comments can be attached to any node. Below are the settings for comments. The display comes in two types, a \"flat list\" where everything is flush to the left side, and comments come in cronological order, and a \"threaded list\" where comments to other comments are placed immediately below and slightly indented forming an outline. They also come in two styles: \"expanded\", where you see both the title and the contents, and \"collapsed\" where you only see the title. To set the default threshold you first have to set up thresholds in the <a href=\"%threshold\">administer &raquo; comments &raquo; moderation &raquo; thresholds</a> area. Preview comment forces a user to look at their comment by clicking on a \"Preview\" button before they can actually add the comment. If \"New comment form\" is enabled then at the bottom of every comment page there will be a form too add a new comment.", array("%threshold" => url("admin/comment/moderation/filters")));
Dries's avatar
 
Dries committed
77 78 79 80 81
      break;
    case 'admin/comment':
      $output = t("Comments let users give feedback to content authors.  Here you may review/approve/deny recent comments, and configure moderation if desired.");
      break;
    case 'admin/comment/comments':
Dries's avatar
 
Dries committed
82
      $output = t("Click on <a href=\"%nup\">new or updated comments</a> to see your latest comments, or <a href=\"%queue\">comment approval queue</a> to approve new comments.", array("%nup" => url("admin/comment/comments/0"), "%queue" => url("admin/comment/moderation")));
Dries's avatar
 
Dries committed
83 84 85 86 87
      break;
    case 'admin/comment/comments/0':
      $output = t("Below is a list of the latest comments posted your site. Click on a subject to see the comment, the author's name to edit the author's user information , \"edit comment\" to edit the comment, and \"delete comment\" to remove the comment.");
      break;
    case 'admin/comment/comments/1':
88
      $output = t("Below is a list of the comments posted to your site that need approval. To approve a comment click on <strong>\"edit comment\"</strong> and then change it's <strong>moderation status</strong> to Approved.<br />Click on a subject to see the comment, the author's name to edit the author's user information, \"edit comment\" to edit the comment, and \"delete comment\" to remove the comment.");
Dries's avatar
 
Dries committed
89
      break;
Dries's avatar
 
Dries committed
90 91
    case 'admin/comment/moderation':
      $output = t("If you have a get a lot of comments, you can enable comment moderation. Once moderation is enabled users can vote on a comment based on dropdown menus. <a href=\"%votes\">Votes</a> sets up the names in the dropdown menu, and the order in which they appear, using weights. <a href=\"%matrix\">Matrix</a> sets up the value of each user's vote, and <a href=\"%threshhold\">threshhold</a> sets up the levels at which a comment will be displayed.", array("%votes" => url("admin/comment/moderation/votes"), "%matrix" => url("admin/comment/moderation/matrix"), "%threshhold" => url("admin/comment/moderation/filters")));
Dries's avatar
 
Dries committed
92 93
      break;
    case 'admin/comment/moderation/votes':
94
      $output = t("Here is where you setup the names of each type of vote. Weight lets you set the order of the drop down menu. Click <strong>edit</strong> to edit a current vote weight.<br />Notes: <ul><li>you can have more than one type with the same name. The system does not protect you from this.</li><li>To <strong>delete</strong> a name/weight combiniation go to the <strong>edit</strong> area.</li></ul>");
Dries's avatar
 
Dries committed
95 96
      break;
    case 'admin/comment/moderation/matrix':
97
      $output = t("Here is where you assign a value to each item in the dropdown menu. This value is added to the vote total, which is then divided by the number of users who have voted and rounded off to the nearest integer.<br />Notes:<ul><li>In order to use comment moderation, every text box on this page should be populated.</li><li>You must assign the <strong>moderate comments</strong> permission to at least one role in order to use this page.</li><li>Every box not filled in will have a value of zero, which will have the effect of <strong>lowering</strong> a comments over all score.</li></ul>");
Dries's avatar
 
Dries committed
98 99
      break;
    case 'admin/comment/moderation/filters':
100
      $output = t("<i>Optional</i> Here you can setup the name and minimum \"cut off\" score to help your users hide comments that they don't want too see. These thresholds appear in the Comment Control Panel. Click \"edit\" to edit the values of an already exsisting threashold. To <strong>delete</strong> a threshold click on \"edit\".");
Dries's avatar
 
Dries committed
101 102
      break;
    case 'admin/comment/moderation/roles':
103
      $output = t("Here you can setup the <strong>initial</strong> vote value of a comment posted by each user role. This value is used before any other users vote on the comment.<br />Note: Blank entries are valued at zero");
Dries's avatar
 
Dries committed
104
      break;
Dries's avatar
 
Dries committed
105
    case 'admin/comment/search':
Dries's avatar
 
Dries committed
106 107
      $output = t("Enter a simple pattern ( '*' maybe used as a wildcard match) to search for a comment.  For example, one may search for 'br' and Drupal might return 'bread brakers', 'our daily bread' and 'brenda'.");
      break;
Dries's avatar
 
Dries committed
108
  }
Dries's avatar
 
Dries committed
109
  return $output;
Dries's avatar
 
Dries committed
110 111
}

Dries's avatar
 
Dries committed
112
function comment_help_page() {
Dries's avatar
 
Dries committed
113
  print theme("page", comment_help());
Dries's avatar
 
Dries committed
114 115
}

116
function comment_settings() {
Dries's avatar
 
Dries committed
117 118 119 120
  $group  = form_radios(t("Default display mode"), "comment_default_mode", variable_get("comment_default_mode", 4), _comment_get_modes(), t("The default view for comments. Expanded views display the body of the comment. Threaded views keep replies together."));
  $group .= form_radios(t("Default display order"), "comment_default_order", variable_get("comment_default_order", 1), _comment_get_orders(), t("The default sorting for new users and anonymous users while viewing comments. These users may change their view using the comment control panel. For registered users, this change is remembered as a persistent user preference."));
  $group .= form_select(t("Default comments per page"), "comment_default_per_page", variable_get("comment_default_per_page", "50"), _comment_per_page(), t("Default number of comments for each page: more comments are distributed in several pages."));
  $group .= form_radios(t("Comment controls"), "comment_controls", variable_get("comment_controls", 0), array(t("Display above the comments"), t("Display below the comments"), t("Display above and below the comments"), t("Do not display")), t("Position of the comment controls box.  The comment controls let the user change the default display mode and display order of comments."));
Dries's avatar
Dries committed
121
  $output = form_group(t('Comment viewing options'), $group);
Dries's avatar
 
Dries committed
122

Dries's avatar
 
Dries committed
123 124 125
  $group  = form_radios(t("Preview comment"), "comment_preview", variable_get("comment_preview", 1), array(t("Optional"), t("Required")), t("Must users preview comments before submitting?"));
  $group .= form_radios(t("Location of comment submission form"), "comment_form_location", variable_get("comment_form_location", 0), array(t("Display on separate page"), t("Display below post or comments")), t("The location of the comment submission form."));
  $output .= form_group(t('Comment posting settings'), $group);
Dries's avatar
 
Dries committed
126

Dries's avatar
 
Dries committed
127
  $result = db_query("SELECT fid, filter FROM {moderation_filters} ");
Dries's avatar
 
Dries committed
128 129
  while ($filter = db_fetch_object($result)) {
    $thresholds[$filter->fid] = ($filter->filter);
Dries's avatar
 
Dries committed
130
  }
Dries's avatar
 
Dries committed
131 132 133 134
  if ($thresholds) {
    $group = form_select(t("Default threshold"), "comment_default_threshold", variable_get("comment_default_threshold", 0), $thresholds, t("Thresholds are values below which comments are hidden. These thresholds are useful for busy sites which want to hide poor comments from most users."));
    $output .= form_group(t('Comment moderation settings'), $group);
  }
Dries's avatar
 
Dries committed
135

Dries's avatar
 
Dries committed
136
  return $output;
Dries's avatar
 
Dries committed
137 138
}

Dries's avatar
 
Dries committed
139 140 141 142
function comment_user($type, $edit, &$user) {
  switch ($type) {
    case "view_public":
    case "view_private":
Dries's avatar
 
Dries committed
143
      if ($user->signature) {
Dries's avatar
 
Dries committed
144
        return form_item(t("Signature"), check_output($user->signature));
Dries's avatar
 
Dries committed
145 146
      }
      break;
Dries's avatar
 
Dries committed
147 148
    case "edit_form":
      // when user tries to edit his own data
Dries's avatar
 
Dries committed
149
      return form_textarea(t("Signature"), "signature", $user->signature, 70, 3, t("Your signature will be publicly displayed at the end of your comments.") ."<br />". filter_tips_short());
Dries's avatar
 
Dries committed
150 151
    case "edit_validate":
      // validate user data editing
Dries's avatar
 
Dries committed
152
      return array("signature" => $edit["signature"]);
Dries's avatar
 
Dries committed
153 154 155
  }
}

Dries's avatar
 
Dries committed
156
function comment_access($op, $comment) {
Dries's avatar
 
Dries committed
157 158
  global $user;

Dries's avatar
 
Dries committed
159 160 161 162 163 164 165 166 167 168 169
  if ($op == "edit") {

    /*
    ** Authenticated users can edit their comments as long they have
    ** not been replied to.  This, in order to avoid people changing
    ** or revising their statements based on the replies their posts
    ** got. Furthermore, users can't reply to their own comments and
    ** are encouraged to extend their original comment.
    */

    return $user->uid && $user->uid == $comment->uid && comment_num_replies($comment->cid) == 0;
Dries's avatar
 
Dries committed
170
  }
Dries's avatar
 
Dries committed
171

Dries's avatar
 
Dries committed
172
}
Dries's avatar
 
Dries committed
173
function comment_referer_save() {
Dries's avatar
 
Dries committed
174
  $_SESSION["comment_referer"] = arg(0) ."/". arg(1) ."/". arg(2);
Dries's avatar
 
Dries committed
175 176 177 178 179 180 181 182 183
}

/*
** Restores the referer from a persistent variable:
*/

function comment_referer_load() {
  return $_SESSION["comment_referer"];
}
Dries's avatar
 
Dries committed
184

Dries's avatar
 
Dries committed
185 186 187
function comment_edit($cid) {
  global $user;

Dries's avatar
 
Dries committed
188
  $comment = db_fetch_object(db_query("SELECT c.*, u.uid, u.name, u.data FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d AND c.status != 2", $cid));
Dries's avatar
 
Dries committed
189
  $comment = drupal_unpack($comment);
Dries's avatar
 
Dries committed
190
  if (comment_access("edit", $comment)) {
Dries's avatar
 
Dries committed
191
    return comment_preview(object2array($comment));
Dries's avatar
 
Dries committed
192 193 194 195
  }
}

function comment_reply($pid, $nid) {
Dries's avatar
 
Dries committed
196

Dries's avatar
 
Dries committed
197
  $output = "";
Dries's avatar
 
Dries committed
198

199
  if (user_access("access comments")) {
Dries's avatar
 
Dries committed
200 201 202 203 204

    /*
    ** Show comment
    */

Dries's avatar
 
Dries committed
205
    if ($pid) {
Dries's avatar
 
Dries committed
206
      $comment = db_fetch_object(db_query("SELECT c.*, u.uid, u.name, u.data FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d AND c.status = 0", $pid));
Dries's avatar
 
Dries committed
207
      $comment = drupal_unpack($comment);
Dries's avatar
 
Dries committed
208
      $output .= theme("comment_view", $comment);
Dries's avatar
 
Dries committed
209
    }
Dries's avatar
 
Dries committed
210
    else if (user_access("access content")) {
Dries's avatar
 
Dries committed
211
      $output .= node_view(node_load(array("nid" => $nid)));
Dries's avatar
 
Dries committed
212 213
      $pid = 0;
    }
Dries's avatar
 
Dries committed
214

Dries's avatar
 
Dries committed
215 216 217 218
    /*
    ** If possible, show reply form
    */

Dries's avatar
 
Dries committed
219
    if (node_comment_mode($nid) != 2) {
Dries's avatar
 
Dries committed
220
      $output .= theme("box", t("Reply"), t("This discussion is closed: you can't post new comments."));
Kjartan's avatar
Kjartan committed
221
    }
Dries's avatar
 
Dries committed
222
    else if (user_access("post comments")) {
Dries's avatar
 
Dries committed
223
      $output .= theme("comment_form", array("pid" => $pid, "nid" => $nid), t("Reply"));
Dries's avatar
 
Dries committed
224 225
    }
    else {
Dries's avatar
 
Dries committed
226
      $output .= theme("box", t("Reply"), t("You are not authorized to post comments."));
Dries's avatar
 
Dries committed
227
    }
Kjartan's avatar
Kjartan committed
228 229
  }
  else {
Dries's avatar
 
Dries committed
230
    $output .= theme("box", t("Reply"), t("You are not authorized to view comments."));
Dries's avatar
 
Dries committed
231
  }
Dries's avatar
 
Dries committed
232 233

  return $output;
Dries's avatar
 
Dries committed
234 235 236
}

function comment_preview($edit) {
Dries's avatar
 
Dries committed
237
  global $user;
Dries's avatar
 
Dries committed
238

Dries's avatar
 
Dries committed
239 240
  $output = "";

Dries's avatar
 
Dries committed
241 242 243 244
  foreach ($edit as $key => $value) {
    $comment->$key = $value;
  }

Dries's avatar
 
Dries committed
245
  /*
Dries's avatar
 
Dries committed
246
  ** Attach the user and time information:
Dries's avatar
 
Dries committed
247 248 249 250 251 252 253 254 255 256
  */

  $comment->uid = $user->uid;
  $comment->name = $user->name;
  $comment->timestamp = time();

  /*
  ** Preview the comment:
  */

Dries's avatar
 
Dries committed
257
  $output .= theme("comment_view", $comment, comment_links($comment));
Dries's avatar
 
Dries committed
258
  $output .= theme("comment_form", $edit, t("Reply"));
Kjartan's avatar
Kjartan committed
259 260

  if ($edit["pid"]) {
Dries's avatar
 
Dries committed
261
    $comment = db_fetch_object(db_query("SELECT c.*, u.uid, u.name, u.data FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d AND c.status = 0", $edit["pid"]));
Dries's avatar
 
Dries committed
262
    $comment = drupal_unpack($comment);
Dries's avatar
 
Dries committed
263
    $output .= theme("comment_view", $comment);
Kjartan's avatar
Kjartan committed
264 265
  }
  else {
Dries's avatar
 
Dries committed
266
    $output .= node_view(node_load(array("nid" => $edit["nid"])));
Kjartan's avatar
Kjartan committed
267 268
    $edit["pid"] = 0;
  }
Dries's avatar
 
Dries committed
269 270

  return $output;
Dries's avatar
 
Dries committed
271 272 273
}

function comment_post($edit) {
Dries's avatar
 
Dries committed
274
  global $user;
Dries's avatar
 
Dries committed
275

Dries's avatar
 
Dries committed
276
  if (user_access("post comments") && node_comment_mode($edit["nid"]) == 2) {
Dries's avatar
 
Dries committed
277

Dries's avatar
 
Dries committed
278 279 280 281 282
    /*
    ** Validate the comment's subject.  If not specified, extract
    ** one from the comment's body.
    */

Dries's avatar
 
Dries committed
283
    $edit["subject"] = strip_tags($edit["subject"]);
Dries's avatar
 
Dries committed
284

Dries's avatar
 
Dries committed
285 286 287
    if ($edit["subject"] == "") {
      $edit["subject"] = substr(strip_tags($edit["comment"]), 0, 29);
    }
Dries's avatar
 
Dries committed
288 289 290 291 292

    /*
    ** Validate the comment's body.
    */

Dries's avatar
 
Dries committed
293 294 295 296
    if ($edit["comment"] == "") {
      return array(t("Empty comment"), t("The comment you submitted is empty."));
    }

Dries's avatar
 
Dries committed
297 298 299 300 301
    /*
    ** Check for duplicate comments.  Note that we have to use the
    ** validated/filtered data to perform such check.
    */

Dries's avatar
 
Dries committed
302
    $duplicate = db_result(db_query("SELECT COUNT(cid) FROM {comments} WHERE pid = %d AND nid = %d AND subject = '%s' AND comment = '%s'", $edit["pid"], $edit["nid"], $edit["subject"], $edit["comment"]), 0);
Dries's avatar
 
Dries committed
303 304

    if ($duplicate != 0) {
Dries's avatar
 
Dries committed
305
      watchdog("warning", "comment: duplicate '". $edit["subject"] ."'");
Dries's avatar
 
Dries committed
306
      return array(t("Duplicate comment"), t("The comment you submitted has already been inserted."));
Dries's avatar
 
Dries committed
307 308 309
    }
    else {

Dries's avatar
 
Dries committed
310
      if ($edit["cid"]) {
Dries's avatar
 
Dries committed
311

Dries's avatar
 
Dries committed
312 313 314 315 316 317
        /*
        ** Update the comment in the database.  Note that the update
        ** query will fail if the comment isn't owned by the current
        ** user.
        */

Dries's avatar
 
Dries committed
318
        db_query("UPDATE {comments} SET subject = '%s', comment = '%s' WHERE cid = %d AND uid = '$user->uid'", $edit["subject"], $edit["comment"], $edit["cid"]);
Dries's avatar
 
Dries committed
319 320 321 322 323 324

        /*
        ** Fire a hook
        */

        module_invoke_all("comment", "update", $edit);
Dries's avatar
 
Dries committed
325 326 327 328 329

        /*
        ** Add entry to the watchdog log:
        */

Dries's avatar
 
Dries committed
330
        watchdog("special", "comment: updated '". $edit["subject"] ."'", l(t("view comment"), "node/view/". $edit["nid"], NULL, NULL, $edit["cid"]));
Dries's avatar
 
Dries committed
331 332 333 334 335 336 337 338 339 340 341 342 343
      }
      else {
        /*
        ** Check the user's comment submission rate.  If exceeded,
        ** throttle() will bail out.
        */

        throttle("post comment", variable_get("max_comment_rate", 60));

        /*
        ** Add the comment to database:
        */

Dries's avatar
 
Dries committed
344 345 346 347 348
        $status = user_access("post comments without approval") ? 0 : 1;
        $roles = variable_get("comment_roles", array());
        $score = $roles[$user->rid] ? $roles[$user->rid] : 0;
        $users = serialize(array(0 => $score));

Dries's avatar
 
Dries committed
349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412
        /*
        ** Here we are building the thread field.  See the comment
        ** in comment_render().
        */

        if ($edit["pid"] == 0) {
          /*
          ** This is a comment with no parent comment (depth 0): we start
          ** by retrieving the maximum thread level.
          */

          $max = db_result(db_query("SELECT MAX(thread) FROM {comments} WHERE nid = %d", $edit["nid"]));

          // Strip the "/" from the end of the thread
          $max = rtrim($max, "/");

          /*
          ** Next, we increase this value by one.  Note that we can't
          ** use 1, 2, 3, ... 9, 10, 11 because we order by string and
          ** 10 would be right after 1.  We use 1, 2, 3, ..., 9, 91,
          ** 92, 93, ... instead.  Ugly but fast.
          */

          $decimals = (string)substr($max, 0, strlen($max) - 1);
          $units = substr($max, -1, 1);
          if ($units) {
            $units++;
          }
          else {
            $units = 1;
          }

          if ($units == 10) {
            $units = "90";
          }

          // Finally build the thread field for this new comment
          $thread = "$decimals$units/";
        }
        else {
          /*
          ** This is comment with a parent comment: we increase
          ** the part of the thread value at the proper depth.
          */

          // Get the parent comment:
          $parent = db_fetch_object(db_query("SELECT * FROM {comments} WHERE cid = '%d'", $edit["pid"]));

          // Strip the "/" from the end of the parent thread:
          $parent->thread = (string)rtrim((string)$parent->thread, "/");

          // Get the max value in _this_ thread:
          $max = db_result(db_query("SELECT MAX(thread) FROM {comments} WHERE thread LIKE '%s.%%' AND nid = '%d'", $parent->thread, $edit["nid"]));

          if ($max == "") {
            // First child of this parent
            $thread = "$parent->thread.1/";
          }
          else {
            // Strip the "/" at the end of the thread:
            $max = rtrim($max, "/");

            // We need to get the value at the correct depth:
            $parts = explode(".", $max);
Dries's avatar
 
Dries committed
413
            $parent_depth = count(explode(".", $parent->thread));
Dries's avatar
 
Dries committed
414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430
            $last = $parts[$parent_depth];

            /*
            ** Next, we increase this value by one.  Note that we can't
            ** use 1, 2, 3, ... 9, 10, 11 because we order by string and
            ** 10 would be right after 1.  We use 1, 2, 3, ..., 9, 91,
            ** 92, 93, ... instead.  Ugly but fast.
            */

            $decimals = (string)substr($last, 0, strlen($last) - 1);
            $units = substr($last, -1, 1);
            $units++;
            if ($units == 10) {
              $units = "90";
            }

            // Finally build the thread field for this new comment:
Dries's avatar
 
Dries committed
431
            $thread = "$parent->thread.". $decimals.$units ."/";
Dries's avatar
 
Dries committed
432 433 434 435
          }
        }


Dries's avatar
 
Dries committed
436
        $edit["cid"] = db_next_id("{comments}_cid");
Dries's avatar
 
Dries committed
437

Dries's avatar
 
Dries committed
438
        db_query("INSERT INTO {comments} (cid, nid, pid, uid, subject, comment, hostname, timestamp, status, score, users, thread) VALUES (%d, %d, %d, %d, '%s', '%s', '%s', %d, %d, %d, '%s', '%s')", $edit["cid"], $edit["nid"], $edit["pid"], $user->uid, $edit["subject"], $edit["comment"], getenv("REMOTE_ADDR"), time(), $status, $score, $users, $thread);
Dries's avatar
 
Dries committed
439 440 441 442 443 444

        /*
        ** Tell the other modules a new comment has been submitted:
        */

        module_invoke_all("comment", "insert", $edit);
Dries's avatar
 
Dries committed
445 446 447 448

        /*
        ** Add entry to the watchdog log:
        */
Dries's avatar
 
Dries committed
449

Dries's avatar
 
Dries committed
450
        watchdog("special", "comment: added '". $edit["subject"] ."'", l(t("view comment"), "node/view/". $edit["nid"], NULL, NULL, $edit["cid"]));
Dries's avatar
 
Dries committed
451
      }
Dries's avatar
 
Dries committed
452 453

      /*
Dries's avatar
 
Dries committed
454 455
      ** Clear the cache so an anonymous user can see his comment being
      ** added.
Dries's avatar
 
Dries committed
456
      */
Dries's avatar
 
Dries committed
457

Dries's avatar
 
Dries committed
458
      cache_clear_all();
Dries's avatar
 
Dries committed
459 460
    }
  }
Dries's avatar
 
Dries committed
461 462 463 464
  else {
    watchdog("error", "comment: unauthorized comment submitted or comment submitted to a closed node '". $edit["subject"] ."'");
    return array(t("Error"), t("You are not authorized to post comments, or this node doesn't accept new comments."));
  }
Dries's avatar
 
Dries committed
465 466

  /*
Dries's avatar
 
Dries committed
467
  ** Redirect the user the node he commented on, or explain queue
Dries's avatar
 
Dries committed
468 469
  */

Dries's avatar
 
Dries committed
470 471
  if ($status == 1) {
    return array(t("Comment queued"), t("Your comment has been queued for moderation by site administrators and will be published after approval."));
Dries's avatar
 
Dries committed
472 473 474 475
  }
}

function comment_links($comment, $return = 1) {
Dries's avatar
 
Dries committed
476
  global $user;
Dries's avatar
 
Dries committed
477

Dries's avatar
 
Dries committed
478
  $links = array();
Dries's avatar
 
Dries committed
479

Dries's avatar
 
Dries committed
480 481 482 483
  /*
  ** If we are viewing just this comment, we link back to the node
  */

Dries's avatar
 
Dries committed
484
  if ($return) {
Dries's avatar
 
Dries committed
485
    $links[] = l(t("parent"), comment_referer_load(), NULL, NULL, $comment->cid);
Dries's avatar
 
Dries committed
486
  }
Dries's avatar
 
Dries committed
487

Dries's avatar
 
Dries committed
488
  if (node_comment_mode($comment->nid) == 2) {
489 490 491 492 493 494
    if (user_access("administer comments") && user_access("access administration pages")) {
      $links[] = l(t("delete comment"), "admin/comment/delete/$comment->cid");
      $links[] = l(t("edit comment"), "admin/comment/edit/$comment->cid");
      $links[] = l(t("reply to this comment"), "comment/reply/$comment->nid/$comment->cid");
    }
    else if (user_access("post comments")) {
Dries's avatar
 
Dries committed
495
      if (comment_access("edit", $comment)) {
496
        $links[] = l(t("edit your comment"), "comment/edit/$comment->cid");
Dries's avatar
 
Dries committed
497
      }
Dries's avatar
 
Dries committed
498
      $links[] = l(t("reply to this comment"), "comment/reply/$comment->nid/$comment->cid");
Dries's avatar
 
Dries committed
499 500
    }
    else {
501
      $links[] = theme("comment_post_forbidden");
Dries's avatar
 
Dries committed
502
    }
Dries's avatar
 
Dries committed
503
  }
Dries's avatar
 
Dries committed
504

Dries's avatar
 
Dries committed
505
  if ($moderation = theme("comment_moderation_form", $comment)) {
Dries's avatar
 
Dries committed
506 507
    $links[] = $moderation;
  }
Dries's avatar
 
Dries committed
508

Dries's avatar
 
Dries committed
509
  return theme("links", $links);
Dries's avatar
 
Dries committed
510 511
}

Dries's avatar
 
Dries committed
512
function comment_render($node, $cid = 0) {
Dries's avatar
 
Dries committed
513 514 515 516 517 518 519
  global $user;

  $mode = $_GET["mode"];
  $order = $_GET["order"];
  $threshold = $_GET["threshold"];
  $comments_per_page = $_GET["comments_per_page"];
  $comment_page = $_GET["comment_page"];
Dries's avatar
 
Dries committed
520

Dries's avatar
 
Dries committed
521 522
  $output = "";

Dries's avatar
 
Dries committed
523 524
  if (user_access("access comments")) {

Dries's avatar
 
Dries committed
525 526 527 528 529 530
    /*
    ** Save were we come from so we can go back after a reply
    */

    comment_referer_save();

Dries's avatar
 
Dries committed
531 532 533 534
    /*
    ** Pre-process variables:
    */

Dries's avatar
 
Dries committed
535
    $nid = $node->nid;
Dries's avatar
 
Dries committed
536 537
    if (empty($nid)) {
      $nid = 0;
Dries's avatar
 
Dries committed
538 539 540
    }

    if (empty($mode)) {
541
      $mode = $user->mode ? $user->mode : ($_SESSION["comment_mode"] ? $_SESSION["comment_mode"] : variable_get("comment_default_mode", 4));
Dries's avatar
 
Dries committed
542 543 544
    }

    if (empty($order)) {
545
      $order = $user->sort ? $user->sort : ($_SESSION["comment_sort"] ? $_SESSION["comment_sort"] : variable_get("comment_default_order", 1));
Dries's avatar
 
Dries committed
546 547 548
    }

    if (empty($threshold)) {
549
      $threshold = $user->threshold ? $user->threshold : ($_SESSION["comment_threshold"] ? $_SESSION["comment_threshold"] : variable_get("comment_default_threshold", 0));
Dries's avatar
 
Dries committed
550
    }
Dries's avatar
 
Dries committed
551
    $threshold_min = db_result(db_query("SELECT minimum FROM {moderation_filters} WHERE fid = %d", $threshold));
Dries's avatar
 
Dries committed
552

Dries's avatar
 
Dries committed
553
    if (empty($comments_per_page)) {
554
      $comments_per_page = $user->comments_per_page ? $user->comments_per_page : ($_SESSION["comment_comments_per_page"] ? $_SESSION["comment_comments_per_page"] : variable_get("comment_default_per_page", "50"));
Dries's avatar
 
Dries committed
555
    }
Dries's avatar
 
Dries committed
556

Dries's avatar
 
Dries committed
557
    $output .= "<a id=\"comment\"></a>\n";
Dries's avatar
 
Dries committed
558 559


Kjartan's avatar
Kjartan committed
560
    if ($cid) {
Dries's avatar
 
Dries committed
561 562 563 564 565

      /*
      ** Single comment view
      */

Dries's avatar
 
Dries committed
566 567
      $output .= "<form method=\"post\" action=\"". url("comment") ."\"><div>\n";
      $output .= form_hidden("nid", $nid);
Dries's avatar
 
Dries committed
568

Dries's avatar
 
Dries committed
569
      $result = db_query("SELECT c.cid, c.pid, c.nid, c.subject, c.comment, c.timestamp, u.uid, u.name, u.data, c.score, c.users FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d AND c.status = 0 GROUP BY c.cid, c.pid, c.nid, c.subject, c.comment, c.timestamp, u.uid, u.name, u.data, c.score, c.users", $cid);
Dries's avatar
 
Dries committed
570

Dries's avatar
 
Dries committed
571
      if ($comment = db_fetch_object($result)) {
572
        $output .= theme("comment_view", $comment, comment_links($comment));
Dries's avatar
 
Dries committed
573
      }
Dries's avatar
 
Dries committed
574

Dries's avatar
 
Dries committed
575
      if ((comment_user_can_moderate($node)) && $user->uid != $comment->uid && !(comment_already_moderated($user->uid, $comment->users))) {
Dries's avatar
 
Dries committed
576
        $output .= "<div style=\"text-align: center;\">". form_submit(t("Moderate comment")) ."</div><br />";
Dries's avatar
 
Dries committed
577
      }
Dries's avatar
 
Dries committed
578
      $output .= "</div></form>";
Dries's avatar
 
Dries committed
579
    }
Dries's avatar
 
Dries committed
580
    else {
Dries's avatar
 
Dries committed
581

Dries's avatar
 
Dries committed
582 583 584 585
      /*
      ** Multiple comments view
      */

Dries's avatar
 
Dries committed
586
      $query .= "SELECT c.cid as cid, c.pid, c.nid, c.subject, c.comment, c.timestamp, u.uid, u.name, u.data, c.score, c.users, c.thread FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.nid = '". check_query($nid) ."' AND c.status = 0";
Dries's avatar
 
Dries committed
587 588

      $query .= " GROUP BY c.cid, c.pid, c.nid, c.subject, c.comment, c.timestamp, u.uid, u.name, u.data, c.score, c.users, c.thread";
Dries's avatar
 
Dries committed
589

Dries's avatar
 
Dries committed
590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651
      /*
      ** We want to use the standard pager, but threads would need every
      ** comment to build the thread structure, so we need to store some
      ** extra info.
      **
      ** We use a "thread" field to store this extra info. The basic idea
      ** is to store a value and to order by that value. The "thread" field
      ** keeps this data in a way which is easy to update and convenient
      ** to use.
      **
      ** A "thread" value starts at "1". If we add a child (A) to this
      ** comment, we assign it a "thread" = "1.1". A child of (A) will have
      ** "1.1.1". Next brother of (A) will get "1.2". Next brother of the
      ** parent of (A) will get "2" and so on.
      **
      ** First of all note that the thread field stores the depth of the
      ** comment: depth 0 will be "X", depth 1 "X.X", depth 2 "X.X.X", etc.
      **
      ** Now to get the ordering right, consider this example:
      **
      ** 1
      ** 1.1
      ** 1.1.1
      ** 1.2
      ** 2
      **
      ** If we "ORDER BY thread ASC" we get the above result, and this is
      ** the natural order sorted by time.  However, if we "ORDER BY thread
      ** DESC" we get:
      **
      ** 2
      ** 1.2
      ** 1.1.1
      ** 1.1
      ** 1
      **
      ** Clearly, this is not a natural way to see a thread, and users
      ** will get confused. The natural order to show a thread by time
      ** desc would be:
      **
      ** 2
      ** 1
      ** 1.2
      ** 1.1
      ** 1.1.1
      **
      ** which is what we already did before the standard pager patch. To
      ** achieve this we simply add a "/" at the end of each "thread" value.
      ** This way out thread fields will look like depicted below:
      **
      ** 1/
      ** 1.1/
      ** 1.1.1/
      ** 1.2/
      ** 2/
      **
      ** we add "/" since this char is, in ASCII, higher than every number,
      ** so if now we "ORDER BY thread DESC" we get the correct order.  Try
      ** it, it works ;).  However this would spoil the "ORDER BY thread ASC"
      ** Here, we do not need to consider the trailing "/" so we use a
      ** substring only.
      */
Dries's avatar
 
Dries committed
652 653

      if ($order == 1) {
Dries's avatar
 
Dries committed
654 655 656 657 658 659
        if ($mode == 1 || $mode == 2) {
          $query .= " ORDER BY c.timestamp DESC";
        }
        else {
          $query .= " ORDER BY c.thread DESC";
        }
Dries's avatar
 
Dries committed
660
      }
Dries's avatar
 
Dries committed
661
      else if ($order == 2) {
Dries's avatar
 
Dries committed
662 663 664 665 666 667 668 669 670 671 672 673 674
        if ($mode == 1 || $mode == 2) {
          $query .= " ORDER BY c.timestamp";
        }
        else {

          /*
          ** See comment above.  Analysis learns that this doesn't cost
          ** too much.  It scales much much better than having the whole
          ** comment structure.
          */

          $query .= " ORDER BY SUBSTRING(c.thread, 1, (LENGTH(c.thread) - 1))";
        }
Dries's avatar
 
Dries committed
675 676 677
      }

      /*
Dries's avatar
 
Dries committed
678
      ** Start a form, to use with comment control and moderation.
Dries's avatar
 
Dries committed
679 680
      */

Dries's avatar
 
Dries committed
681
      $result = pager_query($query, $comments_per_page, 0, "SELECT COUNT(*) FROM {comments} WHERE nid = '". check_query($nid) ."'");
682
      if (db_num_rows($result) && (variable_get("comment_controls", 0) == 0 || variable_get("comment_controls", 0) == 2)) {
Dries's avatar
 
Dries committed
683 684 685 686
        $output .= "<form method=\"post\" action=\"". url("comment") ."\"><div>\n";
        $output .= theme("comment_controls", $threshold, $mode, $order, $comments_per_page);
        $output .= form_hidden("nid", $nid);
        $output .= "</div></form>";
Dries's avatar
 
Dries committed
687
      }
Dries's avatar
 
Dries committed
688

Dries's avatar
 
Dries committed
689 690
      $output .= "<form method=\"post\" action=\"". url("comment") ."\"><div>\n";
      $output .= form_hidden("nid", $nid);
Dries's avatar
 
Dries committed
691

Dries's avatar
 
Dries committed
692
      while ($comment = db_fetch_object($result)) {
Dries's avatar
 
Dries committed
693
        $comment = drupal_unpack($comment);
Dries's avatar
 
Dries committed
694
        $comment->depth = count(explode(".", $comment->thread)) - 1;
Dries's avatar
 
Dries committed
695

Dries's avatar
 
Dries committed
696
        if ($mode == 1) {
Dries's avatar
 
Dries committed
697
          $output .= theme("comment_flat_collapsed", $comment, $threshold_min);
Dries's avatar
 
Dries committed
698
        }
Dries's avatar
 
Dries committed
699
        else if ($mode == 2) {
Dries's avatar
 
Dries committed
700
          $output .= theme("comment_flat_expanded", $comment, $threshold_min);
Dries's avatar
 
Dries committed
701
        }
Dries's avatar
 
Dries committed
702
        else if ($mode == 3) {
Dries's avatar
 
Dries committed
703
          $output .= theme("comment_thread_min", $comment, $threshold_min);
Dries's avatar
 
Dries committed
704
        }
Dries's avatar
 
Dries committed
705
        else if ($mode == 4) {
Dries's avatar
 
Dries committed
706
          $output .= theme("comment_thread_max", $comment, $threshold_min);
Dries's avatar
 
Dries committed
707 708
        }
      }
Dries's avatar
 
Dries committed
709

Dries's avatar
 
Dries committed
710 711 712 713
      /*
      ** Use the standard pager, $pager_total is the number of returned rows,
      ** is global and defined in pager.inc
      */
Dries's avatar
Dries committed
714
      if ($pager = theme("pager", NULL, $comments_per_page, 0, array("comments_per_page" => $comments_per_page))) {
Dries's avatar
 
Dries committed
715
        $output .= $pager;
Dries's avatar
 
Dries committed
716
      }
Dries's avatar
 
Dries committed
717

718
      if (db_num_rows($result) && comment_user_can_moderate($node)) {
Dries's avatar
 
Dries committed
719
        $output .= "<div align=\"center\">". form_submit(t("Moderate comments")) ."</div><br />";
Dries's avatar
 
Dries committed
720
      }
Dries's avatar
 
Dries committed
721

Dries's avatar
 
Dries committed
722
      $output .= "</div></form>";
Dries's avatar
 
Dries committed
723

724
      if (db_num_rows($result) && (variable_get("comment_controls", 0) == 1 || variable_get("comment_controls", 0) == 2)) {
Dries's avatar
 
Dries committed
725 726 727 728
        $output .= "<form method=\"post\" action=\"". url("comment") ."\"><div>\n";
        $output .= theme("comment_controls", $threshold, $mode, $order, $comments_per_page);
        $output .= form_hidden("nid", $nid);
        $output .= "</div></form>";
Dries's avatar
 
Dries committed
729
      }
Dries's avatar
 
Dries committed
730 731
    }

Dries's avatar
 
Dries committed
732 733 734 735
    /*
    ** If enabled, show new comment form
    */

Dries's avatar
 
Dries committed
736
    if (user_access("post comments") && node_comment_mode($nid) == 2 && variable_get("comment_form_location", 0)) {
Dries's avatar
 
Dries committed
737
      $output .= theme("comment_form", array("nid" => $nid), t("Post new comment"));
Dries's avatar
 
Dries committed
738
    }
Dries's avatar
 
Dries committed
739
  }
Dries's avatar
 
Dries committed
740
  return $output;
Dries's avatar
 
Dries committed
741 742
}

Dries's avatar
 
Dries committed
743 744 745
function comment_perm() {
  return array("access comments", "post comments", "administer comments", "moderate comments", "post comments without approval", "administer moderation");
}
Dries's avatar
 
Dries committed
746

Dries's avatar
 
Dries committed
747
function comment_link($type, $node = 0, $main = 0) {
Dries's avatar
 
Dries committed
748
  $links = array();
Dries's avatar
 
Dries committed
749

Dries's avatar
 
Dries committed
750
  if ($type == "node" && $node->comment) {
Dries's avatar
 
Dries committed
751 752 753 754 755 756 757 758

    if ($main) {

      /*
      ** Main page: display the number of comments that have been posted.
      */

      if (user_access("access comments")) {
Dries's avatar
 
Dries committed
759
        $all = comment_num_all($node->nid);
Dries's avatar
 
Dries committed
760
        $new = comment_num_new($node->nid);
Dries's avatar
 
Dries committed
761

Dries's avatar
 
Dries committed
762
        if ($all) {
Dries's avatar
 
Dries committed
763
          $links[] = l(format_plural($all, "1 comment", "%count comments"), "node/view/$node->nid", array("title" => t("Jump to the first comment of this posting.")), NULL, "comment");
Dries's avatar
 
Dries committed
764

Dries's avatar
 
Dries committed
765
          if ($new) {
Dries's avatar
 
Dries committed
766
            $links[] = l(format_plural($new, "1 new comment", "%count new comments"), "node/view/$node->nid", array("title" => t("Jump to the first new comment of this posting.")), NULL, "new");
Dries's avatar
 
Dries committed
767 768 769
          }
        }
        else {
Dries's avatar
 
Dries committed
770 771 772 773 774 775 776
          if ($node->comment == 2) {
            if (user_access("post comments")) {
              $links[] = l(t("add new comment"), "comment/reply/$node->nid", array("title" => t("Add a new comment to this page.")));
            }
            else {
              $links[] = theme("comment_post_forbidden");
            }
Dries's avatar
 
Dries committed
777 778
          }
        }
Dries's avatar
 
Dries committed
779 780 781 782 783
      }
    }
    else {
      /*
      ** Node page: add a "post comment" link if the user is allowed to
Dries's avatar
 
Dries committed
784
      ** post comments and if this node is not read-only
Dries's avatar
 
Dries committed
785 786
      */

Dries's avatar
 
Dries committed
787 788
      if ($node->comment == 2) {
        if (user_access("post comments")) {
Dries's avatar
 
Dries committed
789
          $links[] = l(t("add new comment"), "comment/reply/$node->nid", array("title" => t("Share your thoughts and opinions related to this posting.")), NULL, "comment");
Kjartan's avatar
Kjartan committed
790 791
        }
        else {
792
          $links[] = theme("comment_post_forbidden");
Dries's avatar
 
Dries committed
793
        }
Dries's avatar
 
Dries committed
794 795 796 797
      }
    }
  }

Dries's avatar
 
Dries committed
798 799 800
  if ($type == "system") {
    if (user_access("administer comments")) {

Dries's avatar
 
Dries committed
801
      menu("admin/comment", t("comments"), "comment_admin", 1);
Dries's avatar
 
Dries committed
802
      menu("admin/comment/comments", t("overview"), "comment_admin", 2);
Dries's avatar
 
Dries committed
803 804 805
      menu("admin/comment/comments/0", t("new/updated"), "comment_admin", 1);
      menu("admin/comment/comments/1", t("approval queue"), "comment_admin", 2);
      menu("admin/comment/search", t("search"), "comment_admin", 8);
Dries's avatar
 
Dries committed
806
      menu("admin/comment/help", t("help"), "comment_help_page", 9);
Dries's avatar
 
Dries committed
807
      menu("admin/comment/edit", t("edit comment"), "comment_admin", 0, MENU_HIDE);
808
      menu("admin/comment/delete", t("delete comment"), "comment_admin", 0, MENU_HIDE);
Dries's avatar
 
Dries committed
809 810 811

      // comment settings:
      if (user_access("administer moderation")) {
Dries's avatar
 
Dries committed
812
        menu("admin/comment/moderation", t("moderation"), "comment_admin", 3);
Dries's avatar
 
Dries committed
813 814 815 816
        menu("admin/comment/moderation/votes", t("votes"), "comment_admin");
        menu("admin/comment/moderation/matrix", t("matrix"), "comment_admin");
        menu("admin/comment/moderation/filters", t("thresholds"), "comment_admin");
        menu("admin/comment/moderation/roles", t("initial scores"), "comment_admin", 6);
Dries's avatar
 
Dries committed
817
      }
Dries's avatar
 
Dries committed
818
    }
Dries's avatar
 
Dries committed
819
    menu("comment", t("comments"), "comment_page", 0, MENU_HIDE);
Dries's avatar
 
Dries committed
820 821
  }

Dries's avatar
 
Dries committed
822
  return $links;
Dries's avatar
 
Dries committed
823 824
}

Dries's avatar
 
Dries committed
825
function comment_page() {
Dries's avatar
 
Dries committed
826 827
  $op = $_POST["op"];
  $edit = $_POST["edit"];
Dries's avatar
 
Dries committed
828 829 830 831

  if (empty($op)) {
    $op = arg(1);
  }
Dries's avatar
 
Dries committed
832 833 834

  switch ($op) {
    case "edit":
Dries's avatar
 
Dries committed
835
      print theme("page", comment_edit(check_query(arg(2))), t("Edit comment"));;
Dries's avatar
 
Dries committed
836
      break;
Dries's avatar
 
Dries committed
837 838 839
    case t("Moderate comments"):
    case t("Moderate comment"):
      comment_moderate($edit);
Dries's avatar
 
Dries committed
840
      drupal_goto(url(comment_referer_load()));
Dries's avatar
 
Dries committed
841
      break;
Dries's avatar
 
Dries committed
842
    case "reply":
Dries's avatar
 
Dries committed
843
      print theme("page", comment_reply(check_query(arg(3)), check_query(arg(2))), t("Add new comment"));
Dries's avatar
 
Dries committed
844 845
      break;
    case t("Preview comment"):
Dries's avatar
 
Dries committed
846
      print theme("page", comment_preview($edit), t("Preview comment"));
Dries's avatar
 
Dries committed
847 848
      break;
    case t("Post comment"):
Dries's avatar
 
Dries committed
849 850
      list($error_title, $error_body) = comment_post($edit);
      if ($error_body) {
Dries's avatar
 
Dries committed
851
        print theme("page", $error_body, $error_title);
Dries's avatar
 
Dries committed
852 853
      }
      else {
Dries's avatar
 
Dries committed
854
        drupal_goto(url(comment_referer_load()));
Dries's avatar
 
Dries committed
855
      }
Dries's avatar
 
Dries committed
856
      break;
857
    case t("Save settings"):
Dries's avatar
 
Dries committed
858 859 860 861 862
      $mode = $_POST["mode"];
      $order = $_POST["order"];
      $threshold = $_POST["threshold"];
      $comments_per_page = $_POST["comments_per_page"];

863
      comment_save_settings(check_query($mode), check_query($order), check_query($threshold), check_query($comments_per_page));
Dries's avatar
 
Dries committed
864
      drupal_goto(url(comment_referer_load()));
Dries's avatar
 
Dries committed
865 866 867 868
      break;
  }
}

Dries's avatar
 
Dries committed
869 870 871
/**
*** admin functions
**/
Dries's avatar
 
Dries committed
872

Dries's avatar
 
Dries committed
873
function comment_node_link($node) {
Dries's avatar
 
Dries committed
874

Dries's avatar
 
Dries committed
875
  if (user_access("administer comments")) {
Dries's avatar
 
Dries committed
876

Dries's avatar
 
Dries committed
877 878 879
    /*
    ** Edit comments:
    */
Dries's avatar
 
Dries committed
880

Dries's avatar
 
Dries committed
881
    $result = db_query("SELECT c.cid, c.subject, u.uid, u.name FROM {comments} c INNER JOIN {users} u ON u.uid = c.uid WHERE nid = %d AND c.status = 0 ORDER BY c.timestamp", $node->nid);
Dries's avatar
 
Dries committed
882

Dries's avatar
 
Dries committed
883 884

    $header = array(t("title"), t("author"), array("data" => t("operations"), "colspan" => 3));
Dries's avatar
 
Dries committed
885 886

    while ($comment = db_fetch_object($result)) {
Dries's avatar
 
Dries committed
887
      $rows[] = array(l($comment->subject, "node/view/$node->nid", NULL, NULL, $comment->cid), format_name($comment), l(t("view comment"), "node/view/$node->nid", NULL, NULL, $comment->cid), l(t("edit comment"), "admin/comment/edit/$comment->cid"), l(t("delete comment"), "admin/comment/delete/$comment->cid"));
Dries's avatar
 
Dries committed
888 889
    }

Dries's avatar
 
Dries committed
890 891
    if ($rows) {
      $output  = "<h3>". t("Edit comments") ."</h3>";
Dries's avatar
 
Dries committed
892
      $output .= theme("table", $header, $rows);
Dries's avatar
 
Dries committed
893
    }
Dries's avatar
 
Dries committed
894 895

    return $output;
Dries's avatar
 
Dries committed
896
  }
Dries's avatar
 
Dries committed
897
}
Dries's avatar
 
Dries committed
898

Dries's avatar
 
Dries committed
899 900
function comment_admin_edit($id) {

Dries's avatar
 
Dries committed
901
  $result = db_query("SELECT c.*, u.name, u.uid FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d AND c.status != 2", $id);
Dries's avatar
 
Dries committed
902
  $comment = db_fetch_object($result);
Dries's avatar
 
Dries committed
903
  $comment = drupal_unpack($comment);
Dries's avatar
 
Dries committed
904 905 906 907

  if ($comment) {
    $form .= form_item(t("Author"), format_name($comment));
    $form .= form_textfield(t("Subject"), "subject", $comment->subject, 70, 128);
Dries's avatar
 
Dries committed
908
    $form .= form_textarea(t("Comment"), "comment", $comment->comment, 70, 15, filter_tips_short());
909
    $form .= form_radios(t("Status"), "status", $comment->status, array("published", "not published"));
Dries's avatar
 
Dries committed
910 911 912 913 914
    $form .= form_hidden("cid", $id);
    $form .= form_submit(t("Submit"));

    return form($form);
  }
Dries's avatar
 
Dries committed
915 916
}

917 918 919 920 921 922 923 924
function _comment_delete_thread($comment) {
  // Delete the comment:
  db_query("DELETE FROM {comments} WHERE cid = %d", $comment->cid);
  watchdog("special", "comment: deleted '$comment->subject'");

  // Delete the comment's replies:
  $result = db_query("SELECT cid, subject FROM {comments} WHERE pid = %d", $comment->cid);
  while ($comment = db_fetch_object($result)) {
925
    _comment_delete_thread($comment);
926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949