function index()
{
$q_vars = get_url_vars();
$sort = isset($q_vars->sort) ? $q_vars->sort : "";
$search = isset($q_vars->search_tag) ? $q_vars->search_tag : "";
$base = base_url();
if ($search != "") {
$cache = cacheFetch("tagsCache");
} else {
$cache = cacheFetch("tagsPopularCache");
}
if (isset($cache["data"]) !== false) {
$tags = json_decode($cache["data"]);
if (is_array($tags) || !empty($tags)) {
// start the query_string
$q_str = "";
if ($search != "") {
$q_str = '?search_tag=' . $search . '&';
} else {
$q_str = '?';
}
// sort links
$sort_alpha = '<a href="' . $base . 'tags/' . $q_str . 'sort=sort-alpha-';
$sort_total = '<a href="' . $base . 'tags/' . $q_str . 'sort=sort-total-';
if ($sort == "sort-alpha-desc") {
quicksort($tags, "value");
$tags = array_reverse($tags);
$sort_alpha .= 'asc" title="List Alphabetically descending"><strong>List Alphabetically</strong></a>';
$sort_total .= 'desc" title="List By Total descending"><strong>List By Total</strong></a>';
} else {
if ($sort == "sort-total-asc") {
quicksort($tags, "total");
$sort_alpha .= 'desc" title="List Alphabetically ascending"><strong>List Alphabetically</strong></a>';
$sort_total .= 'desc" title="List By Total descending"><strong>List By Total</strong></a>';
} else {
if ($sort == "sort-total-desc") {
quicksort($tags, "total");
$tags = array_reverse($tags);
$sort_alpha .= 'desc" title="List Alphabetically ascending"><strong>List Alphabetically</strong></a>';
$sort_total .= 'asc" title="List By Total ascending"><strong>List By Total</strong></a>';
} else {
quicksort($tags, "value");
$sort_alpha .= 'desc" title="List Alphabetically ascending"><strong>List Alphabetically</strong></a>';
$sort_total .= 'desc" title="List By Total descending"><strong>List By Total</strong></a>';
}
}
}
// grab heighest total value
$temp_tags = $tags;
quicksort($temp_tags, "total");
$temp_tags = array_reverse($temp_tags);
$highest = $temp_tags[0]->total;
// now sort
$tags_count = count($tags);
$list_html = "";
$details_html = "";
$sort_html = 'Sort: ' . $sort_alpha . ' <span class="sep">|</span> ' . $sort_total . ' <span class="sep">|</span> <a href="' . $base . 'tags/' . $q_str . 'tag_cloud=1" title="View popular tags as tag cloud"><strong>View as Tag Cloud</strong></a>';
if ($search != "") {
$details_html = '
<ul class="search_filters">
<li><a href="' . $base . 'tags/" title="Remove this filter" class="remove_filter"><span class="hide">Remove</span></a> Showing tags containing "<strong>' . $q_vars->search_tag . '</strong>"</li>
<li>' . $sort_html . '</li>
</ul>';
} else {
$details_html = '<ul class="search_filters">
<li>Showing popular tags</li>
<li>' . $sort_html . '</li>
</ul>';
}
if (isset($q_vars->tag_cloud)) {
// tag cloud mode
// we'll have 8 font-sizes, ranging from 10-18
// and therefore six colours
$list_html .= '<div style="text-align: center;"><ul class="tag_cloud">';
$max = 30;
$min = 10;
$colours = array("10" => "#aaa", "11" => "#909090", "12" => "#909090", "13" => "#999", "14" => "#808080", "15" => "#808080", "16" => "#888", "17" => "#707070", "18" => "#707070", "19" => "#777", "20" => "#606060", "21" => "#606060", "22" => "#666", "23" => "#505050", "24" => "#505050", "25" => "#555", "26" => "#404040", "27" => "#404040", "28" => "#444", "29" => "#303030", "30" => "#333");
for ($i = 0; $i < $tags_count; $i++) {
if ($search != "") {
if (strpos($tags[$i]->value, $search) === FALSE) {
continue;
}
}
$font_size = (string) $min + round($tags[$i]->total / $highest * ($max - $min));
$list_html .= '<li>
<a style="font-size: ' . $font_size . 'px; color: ' . $colours[$font_size] . ';" href="' . $base . 'browse/?tag=' . str_replace(" ", "+", $tags[$i]->value) . '" title="view uploads with this tag">
' . $tags[$i]->value . '
<em>' . $tags[$i]->total . '</em>
</a>
</li>';
}
$list_html .= '</ul><div class="clear"> </div></div>';
} else {
$list_html .= '<ul class="tag_list">';
for ($i = 0; $i < $tags_count; $i++) {
if ($search != "") {
if (strpos($tags[$i]->value, $q_vars->search_tag) === FALSE) {
continue;
}
}
$perc = round($tags[$i]->total / $highest * 100);
$list_html .= '<li>
<a href="' . $base . 'browse/?tag=' . str_replace(" ", "+", $tags[$i]->value) . '" title="view uploads with this tag">
' . $tags[$i]->value . '
<em>' . $tags[$i]->total . '</em>
</a>
<span style="width:' . $perc . '%;" class="bar">' . $perc . '%</span>
</li>';
}
$list_html .= '</ul>';
}
} else {
$list_html = "<ul><li>No tags yet</li></ul>";
}
// template stuff
$data = array("list_html" => $list_html, "details_html" => $details_html, "search" => $search);
$this->template->write("title", "Tags");
$this->template->write_view("content", "browse/tags", $data);
$this->template->render();
} else {
redirect("", "location");
}
}
/**
Set tagging files. This funtions creates and stores the file, if the timestamp
is less than an hour dont bother
*/
function _setTaggingFile()
{
// first attempt to hit the cache
$cache = cacheFetch("tagsCache");
$popcache = cacheFetch("tagsPopularCache");
$regenerate = false;
if (isset($cache["expire"]) == false || isset(get_url_vars()->forcerefresh) == true) {
$regenerate = true;
} else {
// now check time stamp
$time_diff = $cache["expire"] - time();
if ($time_diff < 1) {
$regenerate = true;
}
}
if ($regenerate == true) {
// create cache file etc
$tags_json = $this->image_model->getTags();
$full = json_encode($tags_json["full"]) . "";
$popular = json_encode($tags_json["popular"]) . "";
$result = cacheStore(trim($full), "tagsCache", 60);
$resultp = cacheStore(trim($popular), "tagsPopularCache", 60);
// the other thing we have to do is add our own file outside of the cache
// for use by the autocomplete
$this->load->helper("file");
write_file("./assets/tags/tags.txt", trim($full));
write_file("./assets/tags/popular.txt", trim($popular));
$this->tags_array = $tags_json["full"];
} else {
// cache hit or data is less than an hour old
$this->tags_array = json_decode($cache["data"]);
}
return true;
// arbitary since it doesnt do anything
}
