Index: casetracker.views.inc
===================================================================
--- casetracker.views.inc	(revision 1)
+++ casetracker.views.inc	(working copy)
@@ -40,6 +40,10 @@
       'field' => 'nid',
       'label' => t('project'),
     ),
+    'argument' => array(
+      'handler' => 'casetracker_views_handler_argument_project',
+      'help' => t('The Case Tracker project ID.'),
+    ),
   );
   $data['casetracker_case']['assign_to'] = array(
     'title' => t('Assigned to'),
@@ -52,6 +56,10 @@
       'handler' => 'casetracker_views_handler_filter_user_options',
       'help' => t('Filter Case Tracker cases by the assigned user.'),
     ),
+    'argument' => array(
+      'handler' => 'casetracker_views_handler_argument_assigned_to',
+      'help' => t('The ID of the user that the case is assigned to.'),
+    ),
   );
   $data['casetracker_case']['case_priority_id'] = array(
     'title' => t('Case priority'),
@@ -219,6 +227,12 @@
       'casetracker_views_handler_argument_type' => array(
         'parent' => 'views_handler_argument_numeric',
       ),
+      'casetracker_views_handler_argument_project' => array(
+        'parent' => 'views_handler_argument_numeric',
+      ),
+      'casetracker_views_handler_argument_assigned_to' => array(
+        'parent' => 'views_handler_argument_numeric',
+      ),
 
       // filters: casetracker_project
       'casetracker_views_handler_filter_project_published' => array(
Index: includes/casetracker_views_handler_argument_assigned_to.inc
===================================================================
--- includes/casetracker_views_handler_argument_assigned_to.inc	(revision 0)
+++ includes/casetracker_views_handler_argument_assigned_to.inc	(revision 0)
@@ -0,0 +1,14 @@
+<?php
+/**
+ * Argument handler for user assigned to a case.
+ *
+ * @ingroup views_field_handlers
+ */
+class casetracker_views_handler_argument_assigned_to extends views_handler_argument_numeric {
+}
Index: includes/casetracker_views_handler_argument_project.inc
===================================================================
--- includes/casetracker_views_handler_argument_project.inc	(revision 0)
+++ includes/casetracker_views_handler_argument_project.inc	(revision 0)
@@ -0,0 +1,14 @@
+<?php
+/**
+ * Argument handler for case project.
+ *
+ * @ingroup views_field_handlers
+ */
+class casetracker_views_handler_argument_project extends views_handler_argument_numeric {
+  function summary_name($data) {
+    if (!isset($this->case_project_options)) {
+      $this->case_project_options = casetracker_realm_load('project');
+    }
+    return $this->case_project_options[$data->{$this->name_alias}];
+  }
+}