get post parents

classes/ComicPressComicPost.inc

@@ -217,8 +217,28 @@ class ComicPressComicPost {
     update_post_meta($this->post->ID, 'comic_ordering', $new_order);
   }
 
-  function get_parent_categories() {
-    $parents = wp_get_post_categories($this->post->ID);
+  function find_parents() {
+  	$parents = array();
+  	$post_categories = wp_get_post_categories($this->post->ID);
+  	if (count($post_categories) == 1) {
+  		do {
+  			$category_parent = 0;
+  			$category = get_category(end($post_categories));
+  			if (!empty($category)) {
+  				$category_parent = $category->parent;
+  				if ($category_parent != 0) {
+  				  $post_categories[] = $category_parent;
+  				} 
+  			}
+  		} while ($category_parent != 0);
+  		
+  		foreach ($post_categories as $category_id) {
+  			$category = get_category($category_id);
+  			$parents[$category_id] = $category->slug;
+  		}
+  	}
+  	
+  	return $parents;
   }
 }
 

test/ComicPressComicPostTest.php

@@ -162,8 +162,49 @@ class ComicPressComicPostTest extends PHPUnit_Framework_TestCase {
     $this->assertEquals($expected_result, get_post_meta(1, 'comic_ordering', true));
   }
 
-  function testFindParents() {
+  function providerTestFindParents() {
+  	return array(
+  		array(
+  			array(),
+  			array()
+  		),
+  		array(
+  			array(1),
+  			array(1 => 'root')
+  		),
+  		array(
+  			array(2),
+  			array(2 => 'comic', 1 => 'root')
+  		),
+  		array(
+  			array(3),
+  			array(3 => 'part-1', 2 => 'comic', 1 => 'root')
+  		),
+  		array(
+  			array(4),
+  			array(4 => 'blog', 1 => 'root')
+  		),
+  		array(
+  			array(1, 4),
+  			array()
+  		),
+  	);
+  }
+  
+  /**
+   * @dataProvider providerTestFindParents
+   */
+  function testFindParents($post_categories, $expected_result) {
+    add_category(1, (object)array('slug' => 'root', 'parent' => 0));
+    add_category(2, (object)array('slug' => 'comic', 'parent' => 1));
+    add_category(3, (object)array('slug' => 'part-1', 'parent' => 2));
+    add_category(4, (object)array('slug' => 'blog', 'parent' => 1));
     
+    wp_set_post_categories(1, $post_categories);
+    
+    $this->p->post = (object)array('ID' => 1);
+    
+    $this->assertEquals($expected_result, $this->p->find_parents());
   }
 }
 

test/ComicPressTest.php

@@ -44,6 +44,22 @@ class ComicPressTest extends PHPUnit_Framework_TestCase {
   	$result = $this->cp->cascade_search('file', $force_parent);
   	$this->assertTrue($result === $expected_result);
   }
+  
+  function providerTestCategorySearch() {
+  	return array(
+  	  array(
+  	  
+  	  )
+  	);
+  }
+  
+  /**
+   * @dataProvider providerTestCategorySearch
+   */
+  function testCategorySearch() {
+  	mkdir(vfsStream::url('root/style/site/comic/chapter-1/part-1'), 0777, true);
+  	
+  }
 }
 
 ?>