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comparison channel/ad_channel.inc @ 1:948362c2a207 ad

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update advertisement
author pierre
date Thu, 02 Apr 2009 15:28:21 +0000
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children e5584a19768b
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0:d8a3998dac8e 1:948362c2a207
1 <?php
2
3 /**
4 * @file
5 * Ad Channel include file.
6 *
7 * Copyright (c) 2008-2009.
8 * Jeremy Andrews <jeremy@tag1consulting.com>.
9 */
10
11 /**
12 * Filter advertisements not in an appropriate channel, from cache.
13 */
14 function ad_channel_cache_filter($ads) {
15 _debug_echo("ad_channel_cache: adserve_cache_filter");
16
17 $channels = adserve_cache('get_cache', 'channel');
18 $valid = array();
19 $nochannel = array();
20 foreach ($ads as $aid) {
21 _debug_echo("ad_channel_cache: checking aid($aid)");
22 if (is_array($channels['ads']) && isset($channels['ads'][$aid]) &&
23 is_array($channels['ads'][$aid])) {
24 foreach ($channels['ads'][$aid] as $chid) {
25 $channel = $channels['channels'][$chid];
26 $display = $channel->display;
27 $urls = unserialize($channel->urls);
28 $frontpage = adserve_variable('site_frontpage') ? adserve_variable('site_frontpage') : 'node';
29 $regexp = '/^('. preg_replace(array('/(\r\n?|\n)/', '/\\\\\*/', '/(^|\|)\\\\<front\\\\>($|\|)/'), array('|', '.*', '\1'. preg_quote($frontpage, '/') .'\2'), preg_quote($urls, '/')) .')$/';
30 $match = preg_match($regexp, adserve_variable('url'));
31 _debug_echo("ad_channel_cache: checking aid($aid) against channel($chid) path(". adserve_variable('url') .") regexp($regexp) match($match)");
32 if ($display == 0) { // display on all except listed urls
33 if (empty($urls) || !$match) {
34 _debug_echo("ad_channel_cache: aid($aid) is valid");
35 $valid[] = $aid;
36 break;
37 }
38 }
39 else { // display only on listed urls
40 if (!empty($urls) && $match) {
41 _debug_echo("ad_channel_cache: aid($aid) is valid");
42 $valid[] = $aid;
43 break;
44 }
45 }
46 _debug_echo("ad_channel_cache: aid($aid) is not valid");
47 }
48 }
49 else {
50 // no channel information for ad, it's valid
51 $display = $channels['display'];
52 _debug_echo("ad_channel_cache: aid($aid) has no channel info [$display]");
53 switch ($display) {
54 case 0:
55 $nochannel[] = $aid;
56 _debug_echo("ad_channel_cache: aid($aid) is valid if no valid ads found in current channel");
57 break;
58 case 1:
59 $valid[] = $aid;
60 _debug_echo("ad_channel_cache: aid($aid) is valid");
61 break;
62 case 2:
63 _debug_echo("ad_channel_cache: aid($aid) is not valid");
64 break;
65 }
66 }
67 }
68
69 if (empty($valid) && !empty($nochannel)) {
70 _debug_echo("ad_channel_cache: using ads with no channel info");
71 $valid = $nochannel;
72 }
73
74 $premiere = adserve_cache('get_cache', 'premiere');
75 $premieres = array();
76 if (is_array($premiere)) {
77 foreach ($valid as $aid) {
78 if (in_array($aid, $premiere)) {
79 _debug_echo("ad_channel_cache: aid($aid) is premiere advertisement");
80 $premieres[$aid] = $aid;
81 }
82 else {
83 _debug_echo("ad_channel_cache: aid($aid) is not a premiere advertisement");
84 }
85 }
86 if (!empty($premieres)) {
87 _debug_echo("ad_channel_cache: returning premiere advertisements");
88 return $premieres;
89 }
90 }
91 _debug_echo("ad_channel_cache: returning non-premiere advertisements");
92 return $valid;
93 }