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<?php
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// $Id: comment_og.module,v 1.7 2008/04/03 09:42:37 rapsli Exp $
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/**
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* Implementation of hook_node_info()
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*
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* @return array
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*/
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function comment_og_info() {
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return array(
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'comment_og' => array(
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'name' => t('Comment OG'),
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'module' => 'comment_og',
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'description' => t('Displays comments only for og members.'),
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)
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);
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}
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/**
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* Implementation of hook_menu
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*
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* @param boolean $may_cache
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* @return array
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*/
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function comment_og_menu($may_cache){
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$items = array();
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return $items;
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}
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/**
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* Implementation of hook_perm
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*
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* @return array
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*/
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function comment_og_perm(){
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return array('use comment og');
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}
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/**
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* Form that is being added to the comment form
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*
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* @return array
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*/
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function comment_og_form(){
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global $user;
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$form['comment_og'] = array(
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'#type' => 'fieldset',
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'#title' => t('OG Groups Settings'),
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'#tree' => true,
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'#description' => t('Select the visibility for the comment. If you don\'t select anything it will automatically be published publicly.'),
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);
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$options = array('0' => t('Public'));
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if(!empty($user->og_groups)){
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foreach ($user->og_groups as $group) {
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$options[$group['nid']]=$group['title'];
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$form['comment_og']['visibility'][$group['nid']] = array(
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'#type' => 'checkbox',
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'#title' => $group['title'],
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);
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}
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}
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$form['comment_og']['visibility'][0] = array(
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'#type' => 'checkbox',
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'#title' => t('Public'),
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);
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return $form;
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}
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/**
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* validate the form
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*
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* @param array $comment
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* @return boolean
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*/
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function comment_og_form_validate($comment){
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$comment_og = $comment['comment_og']['visibility'];
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$tmp = array();
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foreach ($comment_og as $key => $value) {
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if($key != 0){
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$tmp[] = $value;
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}
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}
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if(in_array(1,$tmp) && $comment_og[0] == 1){
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form_set_error('comment_og_perm',t('You can either select Public or in a group'));
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return false;
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}
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return true;
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}
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/**
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* implementation of hook_form_alter
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*
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* @param int $form_id
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* @param array $form
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*/
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function comment_og_form_alter($form_id,&$form){
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//debugger($form_id);
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switch ($form_id) {
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case 'comment_form':
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$form = array_merge($form,comment_og_form());
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break;
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default:
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break;
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}
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}
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/**
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* implement comment hook and check the publish status
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*/
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function comment_og_comment($comment, $op) {
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global $user;
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//debugger('ogc '.$op);
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switch ($op) {
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case 'validate':
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// debugger($comment);
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return comment_og_form_validate($comment);
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break;
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case 'view':
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$comment = comment_og_display_comment($comment);
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if($comment == -1){
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$comment->name = "private";
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}
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break;
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case 'form':
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break;
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case 'delete':
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$sql = "DELETE FROM {comment_og} WHERE cid = %d";
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db_query($sql, $comment->cid);
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break;
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case 'update':
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$sql = "SELECT count(cid) FROM {comment_og} WHERE cid=%d";//incase a comment is edited but is not in the db yet, it's being added
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$result = db_query($sql,$comment['cid']);
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$row = db_fetch_array($result);
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if($row['count(cid)']==0){
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_comment_og_insert($comment['cid'],$comment['comment_og']['visibility']);
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break;
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}
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$ser_groups = _comment_serialize_ogs($comment['comment_og']['visibility']);
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$sql = "UPDATE {comment_og} set visibility=%d, ogs='%s' WHERE cid = %d";
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db_query($sql, $ser_groups['vis'],$ser_groups['serOgs'],$comment['cid']);
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// print"te";debugger($ser_groups);exit("te");
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break;
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case 'insert':
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//debugger($comment);
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_comment_og_insert($comment['cid'],$comment['comment_og']['visibility']);
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break;
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}
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}
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/**
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* prepare all the need values for insertion in db: serialize the groups the comment is published in
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* and then make the flag if it's public or not.
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*
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* @param unknown_type $comment_og
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* @return array
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*/
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function _comment_serialize_ogs($comment_og){
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$ogs = array();
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$public = 0;
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if($comment_og[0]==1){ //this is the form with the public if it's selected we don't have to care about the rest.
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$public = 1;
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}else{
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foreach ($comment_og as $key => $value) {
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if($value == 1){
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$ogs[] = $key;
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}
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}
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}
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if (empty($ogs)) {//if nothing is checked
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$public = 1;
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}
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$ar_return['serOgs'] = serialize($ogs);
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$ar_return['vis'] = $public;
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return $ar_return;
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}
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/**
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* helper function. Inserts a new visibility for a comment
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*
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* @param array $comment
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*/
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function _comment_og_insert($cid,$ogs){
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//debugger($cid);
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$ogs = _comment_serialize_ogs($ogs);
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$sql = "INSERT INTO {comment_og}
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(cid,visibility,ogs)
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VALUES (%d,%d,'%s')";
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db_query($sql,$cid,$ogs['vis'],$ogs['serOgs']);
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}
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/**
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* Before a comment is displayed this function is called.
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* It checks if a comment is public or if it belongs to a group
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*
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* @param object $comment
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* @return object $comment
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*/
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function comment_og_display_comment($comment){
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global $user;
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$og_groups = $user->og_groups;
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$sql = "SELECT visibility,ogs FROM {comment_og} WHERE cid=%d";
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$result = db_query($sql,$comment->cid);
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$row = db_fetch_object($result);
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if(db_num_rows($result) == 0){//incase it's an old comment that isn't in the comment_og table it will be public automatically.
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$comment->visibility = 1;
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return '';
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}
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if (empty($og_groups) && !comment_og_is_public($comment) && $comment->uid != $user->uid) {
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$comment->comment = t('This comment is private.');
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$comment->subject = t('private');
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$comment->name = t('private');
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$comment->visibility = -1;
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return '';
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}
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if(is_array($og_groups)){
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$gid = array(); //collect all the groups of a user
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foreach ($og_groups as $group) {
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$gid[] = $group['nid'];
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}
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$comment->visibility = $row->visibility;
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// $comment->comment_og->visibility = unserialize($row->ogs);
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$ar_og_visibility = $comment->comment_og->visibility;
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$ar_tmp = _comment_og_reform_og_groups_array($user->og_groups);
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if(is_array($ar_og_visibility)){
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$res = array_diff($ar_og_visibility,$ar_tmp);
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}else{
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$res = array();
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}
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if($comment->visibility == 1 || $row->visibility == ''){
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$comment->visibility = 1;
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}
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if(empty($res) || sizeof($res) < sizeof($ar_tmp)){
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$comment->visibility = 1;
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}else{
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$comment->comment= t('This comment is private');
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$comment->title = t('private');
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$comment->visibility = -1;
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}
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}
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}
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/**
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* Helper function. Just resorts the array and puts it into the proper order.
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*
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* @param array $array
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* @return array
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*/
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function _comment_og_reform_og_groups_array($array){
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$return = array();
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foreach ($array as $key => $value) {
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$return[] = $key;
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}
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return $return;
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}
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/**
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* check if comment is public
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* 1 = public
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* 0 = only for groups
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*
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* @param comment $comment
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* @return int visibility
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*/
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function comment_og_is_public($comment){
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$sql = "SELECT visibility FROM {comment_og} WHERE cid=%d";
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$result = db_query($sql,$comment->cid);
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$row = db_fetch_object($result);
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return $row->visibility;
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}
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