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# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
# Dashboards collection implementation
from util import *
# Convert a particular user id to a dashboard id
def dashboardid(user):
return ("'" + user.id(), "'user.apps")
# Get a dashboard from the cache
def getdashboard(id, cache):
dashboard = cache.get(id)
if isNil(dashboard):
return ()
return dashboard
# Put an app into the user's dashboard
def put(id, app, user, cache, apps):
def putapp(app, dashboard):
if isNil(dashboard):
return app
if cadr(caddr(car(app))) == cadr(caddr(car(dashboard))):
return cons(car(app), cdr(dashboard))
return cons(car(dashboard), putapp(app, cdr(dashboard)))
appentry = (("'entry", cadr(car(app)), ("'id", car(id))),)
dashboard = putapp(appentry, getdashboard(dashboardid(user), cache))
cache.put(dashboardid(user), dashboard)
# Update app in app repository
apps.put(id, app);
return True
# Get apps from the user's dashboard
def get(id, user, cache, apps):
def findapp(id, dashboard):
if isNil(dashboard):
return None
if car(id) == cadr(caddr(car(dashboard))):
return (car(dashboard),)
return findapp(id, cdr(dashboard))
if isNil(id):
return ((("'feed", ("'title", "Your Apps"), ("'id", user.id())) + getdashboard(dashboardid(user), cache)),)
return findapp(id, getdashboard(dashboardid(user), cache))
# Delete apps from the user's dashboard
def delete(id, user, cache, apps):
if isNil(id):
return cache.delete(dashboardid(user))
def deleteapp(id, dashboard):
if isNil(dashboard):
return ()
if car(id) == cadr(caddr(car(dashboard))):
return cdr(dashboard)
return cons(car(dashboard), deleteapp(id, cdr(dashboard)))
dashboard = deleteapp(id, getdashboard(dashboardid(user), cache))
cache.put(dashboardid(user), dashboard)
# Delete app from app repository
apps.delete(id);
return True
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