/usr/share/pyshared/schooltool/term/interfaces.py is in python-schooltool 1:2.1.0-0ubuntu1.
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# SchoolTool - common information systems platform for school administration
# Copyright (c) 2005 Shuttleworth Foundation
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
"""Term Interfaces
$Id$
"""
__docformat__ = 'reStructuredText'
import zope.schema
from zope.container.constraints import contains, containers
from zope.container.interfaces import IContainer
from zope.location.interfaces import ILocation, IContained
from zope.interface import Interface, Attribute
from schooltool.common import SchoolToolMessage as _
from schooltool.common import IDateRange
class ITerm(IDateRange, IContained):
"""A term is a set of school days inside a given date range."""
containers('.ITermContainer')
title = zope.schema.TextLine(
title=_("Title"))
def isSchoolday(date):
"""Return whether the date is a schoolday.
Raises a ValueError if the date is outside of the term covered.
"""
class ITermWrite(Interface):
"""A term is a set of school days inside a given date range.
This interface defines an term that can be modified.
"""
def add(day):
"""Mark the day as a schoolday.
Raises a ValueError if the date is outside of the term covered.
"""
def remove(day):
"""Mark the day as a holiday.
Raises a ValueError if the date is outside of the term covered.
"""
def reset(first, last):
"""Change the term and mark all days as holidays.
If first is later than last, a ValueError is raised.
"""
def addWeekdays(*weekdays):
"""Mark that all days of week with a number in weekdays within the
term will be schooldays.
The numbering used is the same as one used by datetime.date.weekday()
method, or the calendar module: 0 is Monday, 1 is Tuesday, etc.
"""
def removeWeekdays(*weekdays):
"""Mark that all days of week with a number in weekdays within the
term will be holidays.
The numbering used is the same as one used by datetime.date.weekday()
method, or the calendar module: 0 is Monday, 1 is Tuesday, etc.
"""
def toggleWeekdays(*weekdays):
"""Toggle the state of all days of week with a number in weekdays.
The numbering used is the same as one used by datetime.date.weekday()
method, or the calendar module: 0 is Monday, 1 is Tuesday, etc.
"""
class ITermContainer(IContainer, ILocation):
"""A container for terms.
It stores term calendars for registered term IDs.
"""
contains(ITerm)
class IDateManager(Interface):
"""A class that handles dates and time.
It does so taking the preferred timezone into account.
"""
today = zope.schema.Date(
title=u"Today",
description=u"""The current day.""",
required=True)
current_term = Attribute("The active term.")
class TermDateNotInSchoolYear(Exception):
def __repr__(self):
return "Dates do not fit in school year!"
__str__ = __repr__
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