Very basic error handling

frontend/modules/api/search.php

@@ -36,6 +36,8 @@ else
 	array_unshift($db_query_arguments, '');
 	unset($db_query_arguments[0]);
 	
+	try
+	{
 		$results_topics = Topic::CreateFromQuery("SELECT * FROM topics WHERE {$db_query}", $db_query_arguments);
 		
 		$return_objects = array();
@@ -46,4 +48,9 @@ else
 		}
 		
 		$sPageContents = json_encode($return_objects);
+	}
+	catch (NotFoundException $e)
+	{
+		$sPageContents = json_encode(array("error" => "No results found for the specified query.", "query" => $query));
+	}
 }

frontend/style.css

@@ -136,3 +136,9 @@ a.title
 {
 	content: ")";
 }
+
+.error
+{
+	margin: 8px 16px;
+	font-size: 19px;
+}

frontend/templates/ui/index.tpl

@@ -11,7 +11,7 @@
 				/*$("input").val("data");
 				runSearch();*/
 			
-				$("input").keypress(function(){
+				$("input").keyup(function(){
 					if(typeof search_timeout !== "null")
 					{
 						clearTimeout(search_timeout);
@@ -27,10 +27,14 @@
 				$(".spinner").show();
 				var query = $("input#query").val();
 				
+				if(query.length >= 3)
+				{
 					$.post("/api/search", {q: query}, function(response){
 						$(".spinner").hide();
 						$(".results").html("");
 						
+						if(typeof response.error == "undefined")
+						{
 							for(i in response)
 							{
 								if(response[i].items.length > 0)
@@ -56,10 +60,21 @@
 									result_wrapper.appendTo(".results");
 								}
 							}
+						}
+						else
+						{
+							$(".results").html("<div class='error'>No results.</div>");
+						}
 						
 						setHandlers();
 					}, "json");
 				}
+				else
+				{
+					$(".spinner").hide();
+					$(".results").html("<div class='error'>Enter at least 3 characters.</div>");
+				}
+			}
 			
 			function setHandlers()
 			{