commentwall/lib.php

   1 <?php
   2
   3 //widget ident tells you which widget you are dealing with
   4
   5 // sets up the widget, leave blank
   6 function commentwall_pagesetup() {
   7 }
   8
   9 // tells Elgg the widget exists
  10 function commentwall_init() {
  11         global $CFG, $profile_id, $db, $messages, $page_owner;
  12
  13         $tables = $db->Metatables();
  14         if (!in_array($CFG->prefix . "profile_commentwall",$tables)) {
  15                 if (file_exists($CFG->dirroot . "mod/commentwall/$CFG->dbtype.sql")) {
  16                         modify_database($CFG->dirroot . "mod/commentwall/$CFG->dbtype.sql");
  17                 } else {
  18                         error("Error: Your database ($CFG->dbtype) is not yet fully supported by the comment wall.  See the mod/commentwall directory.");
  19                 }
  20                 print_continue("index.php");
  21                 exit;
  22         }
  23
  24         //If a comment has been submitted, populate the database here
  25         $action = optional_param("action");
  26
  27     if($action == 'commentwall:add' && $sneaky == '') {
  28
  29         $widget_id = optional_param("widget_id");
  30         $comment_id = optional_param("comment_id");
  31         $comment = optional_param("comment");
  32
  33         // TODO: check for access permissions!
  34         $access = run("users:access_level_sql_where",$_SESSION['userid']);
  35         if ($widget = get_record_sql("select ident from {$CFG->prefix}widgets where {$access} and type = \"commentwall::example\"")) {
  36
  37                 $logged_in_user = $_SESSION['userid']; // get the id of the person logged in
  38                 $profile_owner = optional_param("profile_id"); // get the profile owner
  39                 $sneaky = optional_param("sneaky"); // used to try and stop spam
  40                 $commentwall = new stdClass;
  41                 $commentwall->parent_widget = $widget_id;
  42                 $commentwall->comment_owner = $_SESSION['userid'];
  43                 $commentwall->content = $comment;
  44                 $commentwall->time_posted = time();
  45
  46                 $comment = new stdClass;
  47                 $comment->owner = $comment_owner;
  48             $comment->posted = time();
  49             $comment->body = $comment;
  50             $comment = plugin_hook("weblog_comment","create",$comment);
  51
  52             if ($comment) {
  53                 insert_record("profile_commentwall",$commentwall);
  54
  55                     //used to email the comment wall owner
  56                     notify_user(page_owner(), __gettext("Someone has posted to your comment wall"), __gettext("Check it out") . ": " . $CFG->wwwroot . user_info("username", page_owner()) . "/profile/");
  57                     }
  58
  59             }
  60
  61                 //To stop the back browser issue, use redirect
  62                 $_SESSION['messages'] = $messages;
  63                 header("Location: {$CFG->wwwroot}" . user_info("username", page_owner()) . "/profile/");
  64                 exit;
  65      } else if ($action == 'commentwall:delete' &&
  66                                                 ($page_owner == $_SESSION['userid'])
  67                                                 || user_flag_get('admin',$_SESSION['userid'])) {
  68                 $widget_id = optional_param("widget_id");
  69         $comment_id = optional_param("comment_id");
  70                 //check the comment actually exists
  71                 if ($records = get_records_sql("select * from {$CFG->prefix}profile_commentwall where ident={$comment_id}")) {
  72                         //delete the comment
  73                         delete_records("profile_commentwall","ident",$comment_id);
  74                         $_SESSION['messages'] = $messages;
  75                         header("Location: {$CFG->wwwroot}" . user_info("username", page_owner()) . "/profile/");
  76                     exit;
  77                 }
  78         }
  79
  80     listen_for_event("widget","delete","commentwall_widget_delete");
  81
  82     $CFG->widgets->list[] = array(
  83                                         'name' => __gettext("Comment Wall"),
  84                                         'description' => __gettext("Leave me a comment."),
  85                                         // Note that type must be of the form modulename::widgetname
  86                                         'type' => "commentwall::example"
  87                                 );
  88 }
  89
  90 // handles the widget display
  91 function commentwall_widget_display($widget) {
  92     global $CFG;
  93         $owner = $widget->ident;
  94         $title = __gettext("Comment Wall");
  95         if (!$limit_number = widget_get_data("widget_comment_number",$widget->ident)) {
  96                 $limit_number = 6;
  97     }
  98
  99         $body = <<<END
 100 <style>
 101    .comment {
 102                 margin:0 0 20px 0;
 103                 border-top:1px solid #ccc;
 104                 background:url({$CFG->wwwroot}mod/commentwall/images/comments_bk.gif) repeat-x;
 105         }
 106    .comment img {
 107                 border:1px solid #eee;
 108                 padding:2px;
 109                 margin:0 4px 5px 0;
 110                 float:left;
 111         }
 112         #sneaky {
 113                 display:none;
 114     }
 115         .delete-comment-icon img {
 116         border:none;
 117                 float:right;
 118         }
 119 </style>
 120 END;
 121
 122         if ($records = get_records_sql("select * from {$CFG->prefix}profile_commentwall where parent_widget={$owner} ORDER BY time_posted DESC LIMIT {$limit_number}")) {
 123                 foreach($records as $record) {
 124                         $date = date("g:i a, F j", $record->time_posted);
 125                         $body .= "<div class=\"comment\"><p>";
 126             $returnConfirm = __gettext("Are you sure you want to delete this comment?");
 127                         $pathtodeleteicon = $CFG->wwwroot . "/mod/commentwall/images/delete.gif";
 128
 129                         //delete comments
 130                         $delete_path = $CFG->wwwroot . "profile/index.php?profile_id=" . page_owner() ."&action=commentwall:delete&comment_id=" . $record->ident;
 131
 132                         // only show the option to delete if the logged in user owns the profile
 133                         if(page_owner() == $_SESSION['userid']) {
 134                                 $commentmenu = <<< END
 135                                 <a href="$delete_path" onclick="return confirm('$returnConfirm')" title="delete comment" class="delete-comment-icon"><img src="$pathtodeleteicon" /></a>
 136 END;
 137                                 $body .= $commentmenu;
 138             }
 139                         if ($record->comment_owner > 0) {
 140                                 $body .= "<a href=\"" . $CFG->wwwroot . user_info("username", $record->comment_owner) . "\">";
 141                                 $body .= user_icon_html($record->comment_owner, 50);
 142                                 $body .= "</a>";
 143                                 $body .= "<b>" . user_name($record->comment_owner) . "</b><small> at " . $date . " " . __gettext("says") . "</small><br />";
 144                         } else {
 145                                 //display comments posted by guests
 146                 $body .= user_icon_html($record->comment_owner, 50);
 147                                 $body .= "<b>A guest</b><small> at " . $date . " " . __gettext("says") . "</small><br />";
 148                         }
 149                         $body .= $record->content . "</p></div>";
 150            }
 151         } else {
 152                 $body .= "No comments - why not be the first!";
 153         }
 154
 155             $body .= "<br /><form action=\"\" method=\"post\"><input type=\"hidden\" name=\"widget_id\" value=\"{$widget->ident}\"><input type=\"hidden\" name=\"comment-owner\" value=\"{$_SESSION['userid']}\"><input type=\"hidden\" name=\"action\" value=\"commentwall:add\"><p><textarea name=\"comment\" row=\"4\" column=\"40\"></textarea></p>";
 156                 $body .= "<p><input type=\"text\" name=\"sneaky\" value=\"\" id=\"sneaky\"><input type=\"submit\" name=\"\" value=\"post it\" /></form></p>";
 157
 158     return array(
 159                     'title' => $title,
 160                     'content'=>$body
 161                 );
 162 }
 163
 164 // handles editing of the widget
 165 function commentwall_widget_edit($widget) {
 166     global $CFG, $page_owner;
 167
 168     /*
 169         Display form contents - without the form tags or save button.
 170         Fields are of the form widget_data[data_name]; you can get data
 171         out using widget_get_data("data_name",$widget->ident).
 172     */
 173
 174         $widget_comment_number = widget_get_data("widget_comment_number",$widget->ident);
 175         if (empty($widget_comment_number)) { $widget_comment_number = 6; }
 176         $body = "<h2>Comment Wall</h2>";
 177         $body .= "<p>" . __gettext("How many comments would you like to appear?") . "</p>";
 178         $body .= "<p><input type=\"text\" name=\"widget_data[widget_comment_number]\" value=\"{$widget_comment_number}\">";
 179     $body .= "<p>Change the privacy level of your comment wall.</p>";
 180     return $body;
 181 }
 182
 183 // delete all comments from the database when a user kills their comment wall
 184 function commentwall_widget_delete($object_type, $event, $object) {
 185
 186     if ($object_type == "widget" && $event == "delete") {
 187
 188         delete_records("profile_commentwall", "parent_widget",$object->ident);
 189
 190     }
 191
 192     return $object;
 193
 194 }
 195
 196 ?>