add notfound error behavior for view

README.md

@@ -210,4 +210,20 @@ app.get( '/users/:id'
 );
 ```
 
-### ```dm.find
+__Special Options:__
+
+To override `error` and `not found` behavior:
+
+```javascript
+app.get( '/users/:id'
+, dm.param( 'id' )
+, dm.returning( 'id', 'name' )
+, dm.view( 'single_user_view', db.users, {
+    layout: 'admin/layout'
+  , notFound: function( req, res ){ res.render('404'); }
+  , error: function( error, req, res ){ res.render('error', { error: error }); }
+  })
+);
+```
+
+### TODO: FINISH DOCS

lib/dirac-middleware.js

@@ -114,6 +114,19 @@ m.view = function(name, collection, options){
   options = options || {};
   options.method = options.method || 'find';
 
+  var defaults = {
+    notFound: function( req, res ){
+      return res.send(404);
+    }
+  , error: function( error, req, res  ){
+      return res.send(500);
+    }
+  };
+
+  for ( var key in defaults ){
+    if ( !( key in options ) ) options[ key ] = defaults[ key ];
+  }
+
   return function(req, res){
     collection = collection || req.collection;
 
@@ -133,6 +146,14 @@ m.view = function(name, collection, options){
       }
 
       args.push( function( error, results ){
+        if ( error ){
+          return options.error( error, req, res );
+        }
+
+        if ( !results ){
+          return options.notFound( req, res );
+        }
+
         res.locals[
           // If results is an array, we want to set the local
           // view variable to the plural form of that object type