BugTrack/2460 Sublist of tracker_list with range(start-last)

Now tracker_list supports range format as limit parameter.
ex: limit:"101-200" means that name numbers are (101 <= x and x <=200)

diff --git a/plugin/tracker.inc.php b/plugin/tracker.inc.php
index 77ca9a9..34c3ddf 100644 (file)
--- a/plugin/tracker.inc.php
+++ b/plugin/tracker.inc.php
@@ -602,20 +602,29 @@ class Tracker_field_past extends Tracker_field
 function plugin_tracker_list_convert()
 {
        global $vars, $_title_cannotread;
-
        $config = 'default';
        $page = $refer = $vars['page'];
        $field = '_page';
        $order = '';
        $list = 'list';
        $limit = NULL;
+       $start_n = NULL;
+       $last_n = NULL;
        if (func_num_args())
        {
                $args = func_get_args();
                switch (count($args))
                {
                        case 4:
-                               $limit = is_numeric($args[3]) ? $args[3] : $limit;
+                               $range_m = null;
+                               if (is_numeric($args[3])) {
+                                       $limit = $args[3];
+                               } else {
+                                       if (preg_match('#^(\d+)-(\d+)$#', $args[3], $range_m)) {
+                                               $start_n = intval($range_m[1]);
+                                               $last_n = intval($range_m[2]);
+                                       }
+                               }
                        case 3:
                                $order = $args[2];
                        case 2:
@@ -630,7 +639,7 @@ function plugin_tracker_list_convert()
                $body = str_replace('$1', htmlsc($page), $_title_cannotread);
                return $body;
        }
-       return plugin_tracker_getlist($page,$refer,$config,$list,$order,$limit);
+       return plugin_tracker_getlist($page,$refer,$config,$list,$order,$limit,$start_n,$last_n);
 }
 function plugin_tracker_list_action()
 {
@@ -655,10 +664,9 @@ function plugin_tracker_list_action()
                        plugin_tracker_getlist($page,$refer,$config,$list,$order)
        );
 }
-function plugin_tracker_getlist($page,$refer,$config_name,$list,$order='',$limit=NULL)
+function plugin_tracker_getlist($page,$refer,$config_name,$list,$order='',$limit=NULL,$start_n=NULL,$last_n=NULL)
 {
        global $whatsdeleted;
-
        $config = new Config('plugin/tracker/'.$config_name);
        if (!$config->read())
        {
@@ -670,13 +678,14 @@ function plugin_tracker_getlist($page,$refer,$config_name,$list,$order='',$limit
        {
                return "<p>config file '".make_pagelink($config->page.'/'.$list)."' not found.</p>";
        }
-
        $cache_enabled = defined('TRACKER_LIST_USE_CACHE') && TRACKER_LIST_USE_CACHE &&
                defined('JSON_UNESCAPED_UNICODE') && defined('PKWK_UTF8_ENABLE');
-       if (is_null($limit)) {
+       if (is_null($limit) && is_null($start_n)) {
                $cache_filepath = CACHE_DIR . encode($page) . '.tracker';
        } else if (pkwk_ctype_digit($limit) && 0 < $limit && $limit <= 1000) {
                $cache_filepath = CACHE_DIR . encode($page) . '.' . $limit . '.tracker';
+       } else if (!is_null($start_n) && !is_null($last_n)) {
+               $cache_filepath = CACHE_DIR . encode($page) . '.' . $start_n . '-' . $last_n . '.tracker';
        } else {
                $cache_enabled = false;
        }
@@ -728,11 +737,12 @@ function plugin_tracker_getlist($page,$refer,$config_name,$list,$order='',$limit
        if ($order === $cache_holder['order'] &&
                empty($tracker_list->newly_deleted_pages) &&
                empty($tracker_list->newly_updated_pages) &&
-               !$tracker_list->link_update_required) {
+               !$tracker_list->link_update_required &&
+               is_null($start_n) && is_null($last_n)) {
                $result = $cache_holder['html'];
        } else {
                $tracker_list->sort($order);
-               $result = $tracker_list->toString($limit);
+               $result = $tracker_list->toString($limit,$start_n,$last_n);
        }
        if ($cache_enabled) {
                $refreshed_at = time();
@@ -1172,7 +1182,7 @@ class Tracker_list
                $script = get_base_uri(PKWK_URI_ABSOLUTE);
                return "[[$title$arrow>$script?plugin=tracker_list&refer=$r_page&config=$r_config&list=$r_list&order=$r_order]]";
        }
-       function toString($limit=NULL)
+       function toString($limit=NULL,$start_n=NULL,$last_n=NULL)
        {
                global $_tracker_messages;
 
@@ -1186,6 +1196,15 @@ class Tracker_list
                                array(count($this->rows),$limit),
                                $_tracker_messages['msg_limit'])."\n";
                        $this->rows = array_splice($this->rows,0,$limit);
+               } else if (!is_null($start_n) && !is_null($last_n)) {
+                       // sublist (range "start-last")
+                       $sublist = array();
+                       foreach ($this->rows as $row) {
+                               if ($start_n <= $row['_real'] && $row['_real'] <= $last_n) {
+                                       $sublist[] = $row;
+                               }
+                       }
+                       $this->rows = $sublist;
                }
                if (count($this->rows) == 0)
                {