/[drupal]/contributions/modules/jrating/jrating.module
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Diff of /contributions/modules/jrating/jrating.module

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revision 1.2.2.43, Thu Nov 22 16:26:42 2007 UTC revision 1.2.2.44, Thu Nov 22 17:19:07 2007 UTC
# Line 50  function jrating_settings() { Line 50  function jrating_settings() {
50      '#title' => t('Display a rating widget for anonymous users'),      '#title' => t('Display a rating widget for anonymous users'),
51      '#default_value' => variable_get('jrating_display_anonymous', 1),      '#default_value' => variable_get('jrating_display_anonymous', 1),
52      //'#options' => array ('1' => t('Yes'), '0' => t('No')),      //'#options' => array ('1' => t('Yes'), '0' => t('No')),
53      '#description' => t('Should a rating widget be displayed when users aren\'t logged in?')      '#description' => t('Should a rating widget be displayed when users aren\'t logged in? (ignored if anonymous users are allowed to rate items)')
54      );      );
55    
56    $form['jrating_display_form_teaser'] = array(    $form['jrating_display_form_teaser'] = array(
# Line 168  function jrating_comment($comment, $op) Line 168  function jrating_comment($comment, $op)
168          $node = node_load($comment->nid);          $node = node_load($comment->nid);
169          if (variable_get('jrating_nodeapi_comments_' . $node->type, 0)){          if (variable_get('jrating_nodeapi_comments_' . $node->type, 0)){
170            jrating_add_files();            jrating_add_files();
   
171            $comment->comment .= jrating_display_rating_form('comment', $comment->cid);            $comment->comment .= jrating_display_rating_form('comment', $comment->cid);
172          }          }
173        }        }
# Line 177  function jrating_comment($comment, $op) Line 176  function jrating_comment($comment, $op)
176  }  }
177    
178  function jrating_display_rating_form($content_type, $content_id, $teaser = FALSE){  function jrating_display_rating_form($content_type, $content_id, $teaser = FALSE){
179    if ((!$teaser || variable_get('jrating_display_form_teaser', 0)) && jrating_display_form_to_user($content_type, $content_id)){    if ((!$teaser || variable_get('jrating_display_form_teaser', 0)) && jrating_allow_form_display($content_type, $content_id)){
180      $rating_form = drupal_get_form(      $rating_form = drupal_get_form(
181        'rating_form_' . $content_type . '_' . $content_id,        'rating_form_' . $content_type . '_' . $content_id,
182          array(          array(
# Line 194  function jrating_display_rating_form($co Line 193  function jrating_display_rating_form($co
193    return theme('jrating_rating_item', $content_type, $content_id, $mean_rating, $rating_form);    return theme('jrating_rating_item', $content_type, $content_id, $mean_rating, $rating_form);
194  }  }
195    
196  function jrating_display_form_to_user($content_type, $content_id){  function jrating_allow_form_display($content_type, $content_id){
197    global $user;    global $user;
   // anonymous and 'display rating widget to anonymous' set  
   if (!$user->uid && variable_get('jrating_display_anonymous', 1)) {  
     return TRUE;  
   }  
198    
199    // signed in and allowed to rate this item    if ($user->uid){
200    if (jrating_allow_user_rating($content_type, $content_id)){      // signed-in and not owner of this node
201        return (user_access('rate content') && jrating_allow_user_rating($content_type, $content_id));
202      }
203      else{
204        // anonymous and allowed to rate, or 'display rating widget to anonymous' allowed
205        return (user_access('rate content') || variable_get('jrating_display_anonymous', 1));
206      }
207    }
208    
209    function jrating_allow_user_rating($content_type, $content_id){
210      // signed-in users can always vote on comments
211      if ($content_type != 'node'){
212      return TRUE;      return TRUE;
213    }    }
214      // either users can rate their own nodes, or the current user doesn't own this node
215      if (variable_get('jrating_allow_rate_own_nodes', 1) || !jrating_node_owner($content_type, $content_id)){
216        return TRUE;
217      }
218    return FALSE;    return FALSE;
219  }  }
220    
221  function jrating_allow_user_rating($content_type, $content_id){  function jrating_node_owner($content_type, $content_id){
222   global $user;    global $user;
223   if (user_access('rate content')) {    $node = node_load($content_id);
224     if ($user->uid && $content_type == 'node' && !variable_get('jrating_allow_rate_own_nodes', 1)){    return ($node->uid == $user->uid);
      $node = node_load($content_id);  
      if ($node->uid == $user->uid){  
        return FALSE;  
      }  
    }  
    return TRUE;  
  }  
  return FALSE;  
225  }  }
226    
227  /**  /**
# Line 299  function jrating_rate_submit($form_id, $ Line 301  function jrating_rate_submit($form_id, $
301    $content_type = $form_values['content_type'];    $content_type = $form_values['content_type'];
302    $content_id = $form_values['content_id'];    $content_id = $form_values['content_id'];
303    
304    if (jrating_allow_user_rating($content_type, $content_id)) {    // allowed to rate this content
305      // check whether anonymous or signed-in and not node owner
306      if (user_access('rate content') && (!$user->uid || jrating_allow_user_rating($content_type, $content_id))) {
307      $vote->value = max(0, min(100, $form_values['rating']));      $vote->value = max(0, min(100, $form_values['rating']));
308      $vote->value_type = 'percent';      $vote->value_type = 'percent';
309      $vote->tag = 'vote';      $vote->tag = 'vote';
310    
311      if (!$user->uid || jrating_allow_change($content_type, $content_id, $vote, $user->uid)){      // reject if signed-in and not allowed to change votes
312        if (!jrating_allow_change($content_type, $content_id, $vote, $user->uid)){
313          $response = array('error' => t('You have already rated this item'));
314        }
315        else{
316        jrating_set_vote($content_type, $content_id, $vote);        jrating_set_vote($content_type, $content_id, $vote);
317    
318        $rating = jrating_get_mean_rating($content_type, $content_id);        $rating = jrating_get_mean_rating($content_type, $content_id);
319    
320        $response = array(        $response = array(
321          'mean' => $rating['rating'],          'mean' => $rating['rating'],
322          'num_votes' => format_plural($rating['num_votes'], '1 vote', '@count votes'),          'num_votes' => format_plural($rating['num_votes'], '1 vote', '@count votes'),
323          'response' => t('Rating saved')          'response' => t('Rating saved')
324          );          );
325    
326        if ($form_values['content_type'] == 'node'){        if ($form_values['content_type'] == 'node'){
327          db_query("REPLACE INTO {history} (uid, nid, timestamp) VALUES (%d, %d, %d)", $user->uid, $content_id, time()); // mark item as read          db_query("REPLACE INTO {history} (uid, nid, timestamp) VALUES (%d, %d, %d)", $user->uid, $content_id, time()); // mark item as read
328        }        }
329      }      }
     else {  
       $response = array('error' => t('You have already rated this item'));  
     }  
330    }    }
331    else {    else {
332      $response = array('error' => $user->uid ?      $response = array('error' => $user->uid ?
# Line 341  function jrating_rate_submit($form_id, $ Line 346  function jrating_rate_submit($form_id, $
346  }  }
347    
348  function jrating_allow_change($content_type, $content_id, $vote, $uid){  function jrating_allow_change($content_type, $content_id, $vote, $uid){
349    if (! variable_get('jrating_allow_changes', 1)){ // changes not allowed    // doesn't apply to anonymous users
350      if (!$uid){
351        return TRUE;
352      }
353    
354      // changes not allowed
355      if (! variable_get('jrating_allow_changes', 1)){
356      if (db_num_rows(db_query("SELECT * FROM {votingapi_vote} WHERE content_type = '%s' AND content_id = %d AND tag = '%s' AND value_type = '%s' AND uid = %d", $content_type, $content_id, $vote->tag, $vote->value_type, $uid))){ // previous vote      if (db_num_rows(db_query("SELECT * FROM {votingapi_vote} WHERE content_type = '%s' AND content_id = %d AND tag = '%s' AND value_type = '%s' AND uid = %d", $content_type, $content_id, $vote->tag, $vote->value_type, $uid))){ // previous vote
357        return FALSE;        return FALSE;
358      }      }
# Line 357  function jrating_set_vote($content_type, Line 368  function jrating_set_vote($content_type,
368    if ($user->uid) {    if ($user->uid) {
369      $vote->value ? votingapi_set_vote($content_type, $content_id, $vote) : votingapi_unset_vote($content_type, $content_id);      $vote->value ? votingapi_set_vote($content_type, $content_id, $vote) : votingapi_unset_vote($content_type, $content_id);
370    }    }
371    else { // anonymous    // anonymous
372      else {
373      $hostname = $_SERVER['HTTP_X_FORWARDED_FOR'] ? $_SERVER['HTTP_X_FORWARDED_FOR'] : $_SERVER['REMOTE_ADDR'];      $hostname = $_SERVER['HTTP_X_FORWARDED_FOR'] ? $_SERVER['HTTP_X_FORWARDED_FOR'] : $_SERVER['REMOTE_ADDR'];
374    
375      if ($old_vote = db_fetch_object(db_query("SELECT vote_id FROM {votingapi_vote} WHERE content_type = '%s' AND content_id = %d AND value_type = '%s' AND tag = 'vote' AND uid = 0 AND hostname = '%s' AND timestamp > %d", $content_type, $content_id, $vote->value_type, $hostname, time() - (60 * 60 * 24)))){ // existing vote from the same IP address within the past day      if ($old_vote = db_fetch_object(db_query("SELECT vote_id FROM {votingapi_vote} WHERE content_type = '%s' AND content_id = %d AND value_type = '%s' AND tag = 'vote' AND uid = 0 AND hostname = '%s' AND timestamp > %d", $content_type, $content_id, $vote->value_type, $hostname, time() - (60 * 60 * 24)))){ // existing vote from the same IP address within the past day: overwrite
376        $vote->value ? votingapi_change_vote($old_vote, $vote->value) : votingapi_delete_vote($old_vote);        $vote->value ? votingapi_change_vote($old_vote, $vote->value) : votingapi_delete_vote($old_vote);
377      }      }
378      else {      else {
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