Source code for ploneintranet.todo.portlets.latest
# -*- coding: utf-8 -*-
from zope.interface import implementer
from zope.component import getUtility
from zope import schema
from plone import api
from plone.memoize import ram
from plone.memoize.compress import xhtml_compress
from plone.memoize.instance import memoize
from plone.portlets.interfaces import IPortletDataProvider
from plone.app.uuid.utils import uuidToCatalogBrain
from plone.app.portlets.cache import render_cachekey
from plone.app.portlets.portlets import base
from Products.Five.browser.pagetemplatefile import ViewPageTemplateFile
from ..interfaces import ITodoUtility
from ..interfaces import MUST_READ
from ploneintranet.core import ploneintranetCoreMessageFactory as _
[docs]class ILatest(IPortletDataProvider):
count = schema.Int(
title=_(u"Number of items to display"),
description=_(u"How many items to list."),
required=True,
default=5,
)
[docs]@implementer(ILatest)
class Assignment(base.Assignment):
def __init__(self, count=5):
self.count = count
@property
def title(self):
"""This property is used to give the title of the portlet in the
"manage portlets" screen.
"""
return _(u"Latest news")
[docs]class Renderer(base.Renderer):
_template = ViewPageTemplateFile("latest.pt")
[docs] @ram.cache(render_cachekey)
def render(self):
return xhtml_compress(self._template())
[docs] def latest_news(self):
return [b.getObject() for b in self._data()]
[docs] @memoize
def _data(self):
todos = getUtility(ITodoUtility)
current_user = api.user.get_current()
latest = todos.query(
userids=[current_user.getId()],
verbs=[MUST_READ],
sort_on="created",
sort_order="reverse",
)
limit = self.data.count
contents = []
for action in latest[:limit]:
# Maybe it is better to have a catalog brain here?
content = uuidToCatalogBrain(action.content_uid)
contents.append(content)
return contents
