Add autocomplete view for current employees.

tailbone/views/employees.py

@@ -1,9 +1,8 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 ################################################################################
 #
 #  Rattail -- Retail Software Framework
-#  Copyright © 2010-2012 Lance Edgar
+#  Copyright © 2010-2015 Lance Edgar
 #
 #  This file is part of Rattail.
 #
@@ -21,13 +20,19 @@
 #  along with Rattail.  If not, see <http://www.gnu.org/licenses/>.
 #
 ################################################################################
-
 """
 Employee Views
 """
 
+from __future__ import unicode_literals
+
 from sqlalchemy import and_
 
+from rattail.db import model
+from rattail import enum
+
+from tailbone.views import AutocompleteView
+
 from . import SearchableAlchemyGridView, CrudView
 from ..grids.search import EnumSearchFilter
 from ..forms import AssociationProxyField, EnumFieldRenderer
@@ -36,6 +41,7 @@ from rattail.db.model import (
 from rattail.enum import EMPLOYEE_STATUS, EMPLOYEE_STATUS_CURRENT
 
 
+
 class EmployeesGrid(SearchableAlchemyGridView):
 
     mapped_class = Employee
@@ -151,9 +157,26 @@ class EmployeeCrud(CrudView):
         return fs
 
 
+class EmployeesAutocomplete(AutocompleteView):
+    """
+    Autocomplete view for the Employee model, but restricted to return only
+    results for current employees.
+    """
+    mapped_class = model.Person
+    fieldname = 'display_name'
+
+    def filter_query(self, q):
+        return q.join(model.Employee)\
+            .filter(model.Employee.status == enum.EMPLOYEE_STATUS_CURRENT)
+
+    def value(self, person):
+        return person.employee.uuid
+
+
 def add_routes(config):
     config.add_route('employees',               '/employees')
     config.add_route('employee.create',         '/employees/new')
+    config.add_route('employees.autocomplete',  '/employees/autocomplete')
     config.add_route('employee.read',           '/employees/{uuid}')
     config.add_route('employee.update',         '/employees/{uuid}/edit')
     config.add_route('employee.delete',         '/employees/{uuid}/delete')
@@ -176,3 +199,7 @@ def includeme(config):
                     permission='employees.update')
     config.add_view(EmployeeCrud, attr='delete', route_name='employee.delete',
                     permission='employees.delete')
+
+    # autocomplete
+    config.add_view(EmployeesAutocomplete, route_name='employees.autocomplete',
+                    renderer='json', permission='employees.list')