/[drupal]/contributions/modules/adsense_injector/adsense_injector.module
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revision 1.3 by hswong3i, Tue Dec 16 09:56:50 2008 UTC revision 1.4 by hswong3i, Wed Dec 17 10:07:31 2008 UTC
# Line 1  Line 1 
1  <?php  <?php
2  // $Id: adsense_injector.module,v 1.1.2.6.2.3 2008/12/16 09:28:12 hswong3i Exp $  // $Id: adsense_injector.module,v 1.1.2.6.2.3.2.5 2008/12/17 09:56:09 hswong3i Exp $
3    
4  /**  /**
5   * @file   * @file
6   * Inject adsense ads into node content automatically.   * Inject adsense ads into node content automatically.
7   */   */
8    
 define('ADSENSE_INJECTOR_INSERT_BODY_AD_DEFAULT', TRUE);  
 define('ADSENSE_INJECTOR_BODY_INSERTION_TEMPLATE_DEFAULT', '<div class="ad-auto-inserted" style="float:left; margin: 0 1em .25em 0;">[adsense:120x240:1:1]</div>%body<br class="clear"/>[adsense:468x60:1:1]');  
 define('ADSENSE_INJECTOR_BODY_MINWORDS_DEFAULT', 75);  
 define('ADSENSE_INJECTOR_APPEND_IN_LISTVIEW_DEFAULT', FALSE);  
 define('ADSENSE_INJECTOR_LISTVIEW_INSERTION_TEMPLATE_DEFAULT', '%teaser<div class="adsense-injector-list-ad">[adsense:468x60:1:1]</div>');  
   
 /**  
  * Prefix for variable table entries - append node type name, store as boolean  
  * value, nonzero means insert ad content.  
  */  
 define('ADSENSE_INJECTOR_INSERT_AD_NODETYPE', 'adsense_injector_nodetype_');  
   
 /**  
  * Count words in a string.  
  *  
  * @param $str  
  *   Target string.  
  * @param $max  
  *   Maximum number of words we care about. Return value will never exceed  
  *   this.  
  * @return  
  *   The count of words, where delimiter is one or more spaces.  
  * @todo Efficiency, find better way to do this.  
  */  
 function _adsense_injector_count_words($str, $max) {  
   // lifted from node.module node_validate() function.  
   return count(explode(' ', $str, $max));  
 }  
   
 /**  
  * Get the minimum node body wordcount for insertion.  
  *  
  * May be content-type specific, but at present, it's global to all node  
  * types.  
  *  
  * @param $nodetype  
  *   The node type.  
  * @param $defval  
  *   The default value.  
  * @return  
  *   The minimum insertion wordcount.  
  */  
 function _adsense_injector_minwords_cfg($nodetype, $defval = 75) {  
   return variable_get('adsense_injector_body_minwords', $defval);  
 }  
   
9  /**  /**
10   * Implementation of hook_nodeapi().   * Implementation of hook_nodeapi().
11   *   *
# Line 61  function _adsense_injector_minwords_cfg( Line 15  function _adsense_injector_minwords_cfg(
15   * @todo: Evaluate efficiency of string concat vs. sprintf, other methods.   * @todo: Evaluate efficiency of string concat vs. sprintf, other methods.
16   */   */
17  function adsense_injector_nodeapi(&$node, $op, $teaser, $page) {  function adsense_injector_nodeapi(&$node, $op, $teaser, $page) {
18      // We only consider content types which are enabled for inline adsense.
19      $node_types = variable_get('adsense_injector_nodes', array());
20      if (empty($node_types[$node->type])) {
21        return;
22      }
23    
24    // insert an ad into the body.    // insert an ad into the body.
25    if ($op == 'alter') {    if ($op == 'alter') {
26      if (module_exists('adsense') && _adsense_page_match() && variable_get(ADSENSE_INJECTOR_INSERT_AD_NODETYPE . $node->type, FALSE)) {      if ($page && variable_get('adsense_injector_body_view', TRUE)) {
27        if ($page) {        // Get the minimum node body wordcount for insertion.
28          if (variable_get('adsense_injector_insert_body_ad', ADSENSE_INJECTOR_INSERT_BODY_AD_DEFAULT)) {        $minwords = variable_get('adsense_injector_body_view_minwords', 75);
29            $body = $node->body;        // Count words in a string.
30            $minwords = _adsense_injector_minwords_cfg($node->type);        // lifted from node.module node_validate() function.
31            $wordcount = _adsense_injector_count_words($body, $minwords);        $wordcount = count(explode(' ', $node->body, $minwords));
32            if ($wordcount >= $minwords) {        if ($wordcount >= $minwords) {
             $template = variable_get('adsense_injector_body_template', ADSENSE_INJECTOR_BODY_INSERTION_TEMPLATE_DEFAULT);  
             // Process adsense module tags in the template text, if enabled and possible.  
             if (function_exists('_adsense_process_tags')) {  
               $template = _adsense_process_tags($template);  
             }  
             else {  
               watchdog('adsense_injector', 'adsense module function _adsense_process_tags() not found', WATCHDOG_ERROR);  
             }  
             $node->body = strtr($template, array('%body' => $body));  
           }  
           else {  
             $node->body = "<!-- adsense_injector: node body word count ($wordcount) is insufficient ($minwords required), so we won't insert an ad. -->". $body;  
           }  
         }  
       }  
       elseif ($teaser && variable_get('adsense_injector_append_in_listview', ADSENSE_INJECTOR_APPEND_IN_LISTVIEW_DEFAULT)) {  
         $template = variable_get('adsense_injector_listview_insertion_template', ADSENSE_INJECTOR_LISTVIEW_INSERTION_TEMPLATE_DEFAULT);  
33          // Process adsense module tags in the template text, if enabled and possible.          // Process adsense module tags in the template text, if enabled and possible.
34          if (function_exists('_adsense_process_tags')) {          $template = _adsense_process_tags(variable_get('adsense_injector_body_view_template', '<div style="float: right; margin: 0; padding: 0 1em .25em 0;">[adsense:250x250:0123456789]</div>%body<br class="clear"/>[adsense:728x90:0123456789]'));
35            $template = _adsense_process_tags($template);          $node->body = strtr($template, array('%body' => $node->body));
         }  
         else {  
           watchdog('adsense_injector', 'adsense module function _adsense_process_tags() not found', WATCHDOG_ERROR);  
         }  
         $node->body = strtr($template, array('%teaser' => $node->teaser));  
36        }        }
37          else {
38            $node->body .= "<!-- adsense_injector: node body word count ($wordcount) is insufficient ($minwords required), so we won't insert an ad. -->";
39          }
40        }
41        elseif ($teaser && variable_get('adsense_injector_list_view', FALSE)) {
42          // Process adsense module tags in the template text, if enabled and possible.
43          $template = _adsense_process_tags(variable_get('adsense_injector_list_view_template', '%teaser<br class="clear"/>[adsense:728x90:0123456789]'));
44          $node->teaser = strtr($template, array('%teaser' => $node->teaser));
45      }      }
46    }    }
47  }  }
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