/usr/share/pyshared/zc/table/batching.py is in python-zc.table 0.9.0-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# Copyright (c) 2005 Zope Foundation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
#
##############################################################################
"""Table formatting and configuration
"""
from zope import interface
from zope.browserpage.viewpagetemplatefile import ViewPageTemplateFile
import zc.table.table
import zc.table.interfaces
unspecified = object()
class Formatter(zc.table.table.FormSortFormatterMixin,
zc.table.table.AlternatingRowFormatterMixin,
zc.table.table.Formatter):
interface.classProvides(zc.table.interfaces.IFormatterFactory)
def __init__(self, context, request, items, visible_column_names=None,
batch_start=None, batch_size=unspecified, prefix=None,
columns=None, sort_on=None):
if batch_size is unspecified:
batch_size = 20
if prefix is None:
prefix = 'zc.table'
super(Formatter, self).__init__(
context, request, items, visible_column_names,
batch_start, batch_size, prefix, columns,
sort_on=sort_on,
)
@property
def batch_change_name(self):
return self.prefix + '.batch_change'
@property
def batch_start_name(self):
return self.prefix + '.batch_start'
_batch_start = None
_batch_start_computed = False
def setPrefix(self, prefix):
super(Formatter, self).setPrefix(prefix)
self._batch_start_computed = False
@apply
def batch_start():
def fget(self):
if not self._batch_start_computed:
self.updateBatching()
return self._batch_start
def fset(self, value):
self._batch_start = value
self._batch_start_computed = False
def fdel(self):
self._batch_start = None
return property(fget, fset, fdel)
def updateBatching(self):
request = self.request
if self._batch_start is None:
try:
self.batch_start = int(request.get(self.batch_start_name, '0'))
except ValueError:
self._batch_start = 0
# Handle requests to change batches:
change = request.get(self.batch_change_name)
if change == "next":
self._batch_start += self.batch_size
try:
length = len(self.items)
except TypeError:
for length, ob in enumerate(self.items):
if length > self._batch_start:
break
else:
self._batch_start = length
else:
if self._batch_start > length:
self._batch_start = length
elif change == "back":
self._batch_start -= self.batch_size
if self._batch_start < 0:
self._batch_start = 0
self.next_batch_start = self._batch_start + self.batch_size
try:
self.items[self.next_batch_start]
except IndexError:
self.next_batch_start = None
self.previous_batch_start = self._batch_start - self.batch_size
if self.previous_batch_start < 0:
self.previous_batch_start = None
self._batch_start_computed = True
batching_template = ViewPageTemplateFile('batching.pt')
def renderExtra(self):
if not self._batch_start_computed:
self.updateBatching()
return self.batching_template() + super(Formatter, self).renderExtra()
def __call__(self):
return ('\n'
'<div style="width: 100%"> '
'<!-- this div is a workaround for an IE bug -->\n'
'<table class="listingdescription" style="width:100%" '
+ ('name="%s">\n' % self.prefix)
+ self.renderContents() +
'</table>\n'
+ self.renderExtra() +
'</div> <!-- end IE bug workaround -->\n'
)
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