working on improved storyline structure widget

addons/Core/Core.inc

@@ -292,6 +292,8 @@ class ComicPressAddonCore extends ComicPressAddon {
   function render_admin() {
     $nonce = wp_create_nonce('comicpress');
     $root_categories = $this->get_root_categories();
+		$storyline = new ComicPressStoryline();
+		$storyline->create_structure(get_option('comicpress-storyline-category-order'));
 
     include(dirname(__FILE__) . '/partials/options-admin.inc'); 
   }

classes/ComicPressDBInterface.inc

@@ -30,9 +30,8 @@ class ComicPressDBInterface {
    * Find the terminal post in a specific category.
    */
   function get_terminal_post_in_category($category_id, $first = true) {
-    global $wp_query;
+    $this->_prepare_wp_query();
     
-    $temp = $wp_query; $wp_query = null;
     $sort_order = $first ? "asc" : "desc";
     $terminal_comic_query = new WP_Query();
     $terminal_comic_query->query("showposts=1&order=${sort_order}&cat=${category_id}&status=publish");
@@ -40,7 +39,8 @@ class ComicPressDBInterface {
     if ($terminal_comic_query->have_posts()) {
       $post = reset($terminal_comic_query->posts);
     }
-    $wp_query = null; $wp_query = $temp;
+
+    $this->_reset_wp_query();
     return $post;
   }
   
@@ -63,26 +63,35 @@ class ComicPressDBInterface {
    * Wrapper around get_adjacent_post(). Don't unit test this method.
    */
   function get_adjacent_comic($category, $next = false, $override_post = null) {
-    global $wp_query, $post;
+    global $post;
-    $temp_single = $wp_query->is_single;
-    $wp_query->is_single = true;
 
-    if (!is_null($override_post)) {
+    $this->_prepare_wp_query();
-      $temp_post = $post;
+    if (!is_null($override_post)) { $temp_post = $post; $post = $override_post; }
-      $post = $override_post; 
-    }
     
     $result = get_adjacent_post(false, implode(" and ", $this->_get_categories_to_exclude($category)), !$next);
 
-    $wp_query->is_single = $temp_single;
+    $this->_reset_wp_query();
-    
+    if (!is_null($override_post)) { $post = $temp_post; }
-    if (!is_null($override_post)) {
-      $post = $temp_post; 
-    }
 
     return empty($result) ? false : $result;
   }
 
+  function _prepare_wp_query() {
+    global $wp_query;
+
+    $this->is_single = $wp_query->is_single;
+    $this->in_the_loop = $wp_query->in_the_loop;
+
+    $wp_query->is_single = $wp_query->in_the_loop = true;
+  }
+
+  function _reset_wp_query() {
+    global $wp_query;
+
+    $wp_query->is_single = $this->is_single;
+    $wp_query->in_the_loop = $this->in_the_loop;
+  }
+  
   /**
    * Get the previous comic from the current one.
    */

classes/ComicPressNavigation.inc

@@ -35,10 +35,6 @@ class ComicPressNavigation {
         foreach ($valid as $field) {
           $nav["storyline-chapter-${field}"] = $this->_dbi->get_first_comic($this->_storyline->{$field}($category));
         }
-        
-        if ($post->ID != $nav['storyline-chapter-current']->ID) {
-          $nav['storyline-chapter-previous'] = $nav['storyline-chapter-current'];
-        }
       }
     }
 

classes/ComicPressStoryline.inc

@@ -83,13 +83,12 @@ class ComicPressStoryline {
     return false;
   }
   
-  function current($id)  { return $id; }
   function parent($id)   { return $this->_get_field('parent', $id); }
   function previous($id) { return $this->_get_field('previous', $id); }
   function next($id)     { return $this->_get_field('next', $id); }
   function valid($id)    {
     if (isset($this->_structure[$id])) {
-      return array_merge(array_keys($this->_structure[$id]), array('current'));
+      return array_keys($this->_structure[$id]);
     }
     return false;
   }
@@ -123,6 +122,47 @@ class ComicPressStoryline {
 	function get_comic_categories() {
 		return array_keys($this->_structure);
 	}
+	
+	function get_simple_storyline() {
+	  $simple_storyline = array('0' => array());
+		foreach ($this->_structure as $category_id => $adjacents) {
+			$parent = 0;
+			if (isset($adjacents['parent'])) { $parent = $adjacents['parent']; }
+			if (!isset($simple_storyline[$parent])) {
+				$simple_storyline[$parent] = array();
+			}
+			$simple_storyline[$parent][$category_id] = true;
+		}
+		
+		while (count($simple_storyline) > 0) {
+			$merge_found = false;
+			foreach ($simple_storyline as $parent => $children) {
+				$has_no_descendents = true;
+				foreach (array_keys($children) as $child) {
+					if (is_numeric($child)) {
+						if (isset($simple_storyline[$child])) {
+							$has_no_descendents = false;
+							break;
+						}
+					}
+				}
+				if ($has_no_descendents) {
+					$merge_found = $parent; break;
+				}
+			}
+			if ($merge_found !== false) {
+				foreach ($simple_storyline as $parent => $children) {
+					if (isset($children[$merge_found])) {
+					  $simple_storyline[$parent][$merge_found] = $simple_storyline[$merge_found];
+						unset($simple_storyline[$merge_found]);
+						break;
+					}
+				}
+			}
+			if (!$merge_found) { break; }
+		}
+		return $simple_storyline;
+	}
 }
 
 ?>

index.php

@@ -1,11 +1,6 @@
 <?php
   global $comicpress, $post, $nav_comics;
 
-  $dbi = ComicPressDBInterface::get_instance();
-  var_dump($dbi->get_terminal_post_in_category(3, true));
-  var_dump($dbi->get_terminal_post_in_category(3, false));
-  exit(0);
-
   comicpress_init();
 
   $nav_comics = array();

test/ComicPressStorylineTest.php

@@ -96,7 +96,7 @@ class ComicPressStorylineTest extends PHPUnit_Framework_TestCase {
       array('parent', 2, 1),
       array('next', 2, 3),
       array('next', 3, 4),
-      array('valid', 1, array('next', 'current')),
+      array('valid', 1, array('next')),
       array('valid', 6, false),
     );
   }
@@ -117,11 +117,11 @@ class ComicPressStorylineTest extends PHPUnit_Framework_TestCase {
 
   function providerTestGetValidNav() {
     return array(
-      array(array(1),   array('next', 'current')),
+      array(array(1),   array('next')),
       array(array(1,2), false),
-      array(array(1,4), array('next', 'current')),
+      array(array(1,4), array('next')),
-      array(array(2),   array('previous', 'next', 'current')),
+      array(array(2),   array('previous', 'next')),
-      array(array(3),   array('previous', 'current')),
+      array(array(3),   array('previous')),
     );
   }
   
@@ -159,6 +159,28 @@ class ComicPressStorylineTest extends PHPUnit_Framework_TestCase {
 
     $this->assertEquals($expected_result, $css->get_valid_post_category(1));
   }
+	
+	function testGetSimpleStoryline() {
+		$this->css->_structure = array(
+      '1' => array('next' => 2),
+      '2' => array('parent' => 1, 'previous' => 1, 'next' => 3),
+      '3' => array('parent' => 2, 'next' => 4, 'previous' => 2),
+      '4' => array('parent' => 2, 'previous' => 3)
+		);
+		
+		$expected_result = array(
+		  array(
+			  '1' => array(
+				  '2' => array(
+					  '3' => true,
+						'4' => true
+					)
+				)
+			)
+		);
+		
+		$this->assertEquals($expected_result, $this->css->get_simple_storyline());
+	}
 }
 
 ?>

test/addons/CoreTest.php

@@ -1,9 +1,9 @@
 <?php
 
 require_once('PHPUnit/Framework.php');
-require_once(dirname(__FILE__) . '/../../../../mockpress/mockpress.php');
+require_once('MockPress/mockpress.php');
-require_once(dirname(__FILE__) . '/../../../classes/ComicPressAddon.inc');
+require_once(dirname(__FILE__) . '/../../classes/ComicPressAddon.inc');
-require_once(dirname(__FILE__) . '/../Core.inc');
+require_once(dirname(__FILE__) . '/../../addons/Core/Core.inc');
 
 class CoreTest extends PHPUnit_Framework_TestCase {
   function setUp() {