From 9ad20de616eb414a24394772dd548522fd000da2 Mon Sep 17 00:00:00 2001
From: ben <ben@36083f99-b078-4883-b0ff-0f9b5a30f544>
Date: Sun, 22 Jun 2008 21:54:25 +0000
Subject: Introducing the annotation listing functions.

git-svn-id: https://code.elgg.org/elgg/trunk@1047 36083f99-b078-4883-b0ff-0f9b5a30f544
---
 engine/lib/annotations.php              | 24 ++++++++++++++++++
 engine/lib/elgglib.php                  | 43 +++++++++++++++++++++++++++++++++
 views/default/navigation/pagination.php |  7 +++++-
 3 files changed, 73 insertions(+), 1 deletion(-)

diff --git a/engine/lib/annotations.php b/engine/lib/annotations.php
index 0507cba09..4dcf9b588 100644
--- a/engine/lib/annotations.php
+++ b/engine/lib/annotations.php
@@ -278,6 +278,30 @@
 		return get_data($query, "row_to_elggannotation");
 		
 	}
+	
+	/**
+	 * Returns a human-readable list of annotations on a particular entity.
+	 *
+	 * @param int $entity_guid The entity GUID
+	 * @param string $name The name of the kind of annotation
+	 * @param int $limit The number of annotations to display at once
+	 * @param true|false $asc Whether or not the annotations are displayed in ascending order. (Default: true)
+	 * @return string HTML (etc) version of the annotation list
+	 */
+	function list_annotations($entity_guid, $name = "", $limit = 25, $asc = true) {
+		
+		if ($asc) {
+			$asc = "asc";
+		} else {
+			$asc = "desc";
+		}
+		$count = count_annotations($entity_guid, "", "", $name);
+		$offset = (int) get_input("annoff",0);
+		$annotations = get_annotations($entity_guid, "", "", $name, "", "", $limit, $offset, $asc);
+		
+		return elgg_view_annotation_list($annotations, $count, $offset, $limit);
+		
+	}
 
 	/**
 	 * Return the sum of a given integer annotation.
diff --git a/engine/lib/elgglib.php b/engine/lib/elgglib.php
index f1ddb2472..b39f83417 100644
--- a/engine/lib/elgglib.php
+++ b/engine/lib/elgglib.php
@@ -381,6 +381,49 @@
 			return $html;
 			
 		}
+
+	/**
+	 * Returns a view of a list of annotations, plus navigation. It is intended that this function
+	 * be called from other wrapper functions.
+	 * 
+	 * @param array $annotations List of annotations
+	 * @param int $count The total number of annotations across all pages
+	 * @param int $offset The current indexing offset
+	 * @param int $limit The number of annotations to display per page
+	 * @return string The list of annotations
+	 */
+		
+		function elgg_view_annotation_list($annotations, $count, $offset, $limit) {
+			
+			$count = (int) $count;
+			$offset = (int) $offset;
+			$limit = (int) $limit;
+			
+			$html = "";
+			
+			$nav = elgg_view('navigation/pagination',array(
+			
+												'baseurl' => $_SERVER['REQUEST_URI'],
+												'offset' => $offset,
+												'count' => $count,
+												'word' => 'annoff',
+			
+														));
+			
+			$html .= $nav;
+														
+			if (is_array($annotations) && sizeof($annotations) > 0) {
+				foreach($annotations as $annotation) {
+					$html .= elgg_view_annotation($annotation, "", false);
+				}
+			}
+			
+			if ($count)
+				$html .= $nav;
+			
+			return $html;
+			
+		}
 		
 	/**
 	 * Displays an internal layout for the use of a plugin canvas.
diff --git a/views/default/navigation/pagination.php b/views/default/navigation/pagination.php
index b96ce32d1..d2a2eca51 100644
--- a/views/default/navigation/pagination.php
+++ b/views/default/navigation/pagination.php
@@ -27,11 +27,16 @@
 	} else {
 		$count = $vars['count'];
 	}
+	if (!isset($vars['word'])) {
+		$word = "offset";
+	} else {
+		$word = $vars['word'];
+	}
 	
 	$totalpages = ceil($count / $limit);
 	$currentpage = ceil($offset / $limit) + 1;
 
-	$baseurl = preg_replace('/[\&\?]offset\=[0-9]*/',"",$vars['baseurl']);
+	$baseurl = preg_replace('/[\&\?]'.$word.'\=[0-9]*/',"",$vars['baseurl']);
 
 ?>
 
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