Infolog - add ability to clear description history

api/src/Storage/History.php

@@ -85,6 +85,27 @@ class History
 		return $this->db->affected_rows();
 	}
 
+	/**
+	 * Delete history log of a certain field
+	 * @param string $record_id ID of the record
+	 * @param string $status Field name / ID
+	 */
+	function delete_field($record_id, $status)
+	{
+		$where = array(
+			'history_appname' => $this->appname,
+			'history_status' => $status
+		);
+
+		if (is_array($record_id) || is_numeric($record_id))
+		{
+			$where['history_record_id'] = $record_id;
+		}
+		$this->db->delete(self::TABLE,$where,__LINE__,__FILE__);
+
+		return $this->db->affected_rows();
+	}
+
 	/**
 	 * Add a history record, if $new_value != $old_value
 	 *

infolog/inc/class.infolog_ui.inc.php

@@ -1835,6 +1835,13 @@ class infolog_ui
 							$content = array_merge($content,$to_write);
 						}
 					}
+
+					// Need to purge description history after encryption?
+					if($content['clean_history'])
+					{
+						$history = new Api\Storage\History('infolog');
+						$record_count = $history->delete_field($info_id, 'De');
+					}
 				}
 				elseif ($button == 'delete' && $info_id > 0)
 				{

infolog/templates/default/app.css

@@ -99,4 +99,7 @@ div#infolog-edit_infolog-edit-description {
 #infolog-index select#infolog-index_filter {
 	width: 150px;
 }
-#infolog_edit_info_responsible_chzn { width:99% !important;}
+#infolog_edit_info_responsible_chzn { width:99% !important;}
+#infolog-edit_clean_history {
+	display: none;
+}

infolog/templates/default/edit.xet

@@ -4,6 +4,7 @@
 <overlay>
 	<template id="infolog.edit.description" template="" lang="" group="0" version="1.6.001">
 		<textbox multiline="true"  id="info_des" no_lang="1" width="99.7%" height="245px"/>
+		<checkbox id="clean_history"/>
 	</template>
 	<template id="infolog.edit.links" template="" lang="" group="0" version="1.3.001">
 		<grid width="100%" overflow="auto">

infolog/templates/pixelegg/app.css

@@ -167,6 +167,9 @@ div#infolog-edit_infolog-edit-description {
 #infolog_edit_info_responsible_chzn {
   width: 99% !important;
 }
+#infolog-edit_clean_history {
+  display: none;
+}
 /*###########################################
 #                                           #
 #       dialogHeader                       #