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webjournal_washer.py
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webjournal_washer.py
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# -*- coding: utf-8 -*-
##
## This file is part of Invenio.
## Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008 CERN.
##
## Invenio 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.
##
## Invenio 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 Invenio; if not, write to the Free Software Foundation, Inc.,
## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
"""
WebJournal input parameters washing related functions
"""
import time
import re
from invenio.webjournal_config import \
InvenioWebJournalIssueNumberBadlyFormedError, \
InvenioWebJournalNoArticleNumberError, \
InvenioWebJournalArchiveDateWronglyFormedError, \
InvenioWebJournalNoPopupRecordError, \
InvenioWebJournalNoCategoryError
from invenio.webjournal_utils import \
get_current_issue, \
guess_journal_name, \
get_journal_categories, \
get_journal_nb_issues_per_year
from invenio.config import CFG_SITE_LANG
# precompiled patterns for the parameters
issue_number_pattern = re.compile("^\d{1,3}/\d{4}$")
def wash_journal_language(ln):
"""
Washes the language parameter. If there is a language, return this,
otherwise return CFG_SITE_LANG constant
"""
if ln == "":
return CFG_SITE_LANG
else:
return ln
def wash_journal_name(ln, journal_name, guess=True):
"""
Washes the journal name parameter. In case of non-empty string,
returns it, otherwise redirects to a guessing function.
If 'guess' is True the function tries to fix the capitalization of
the journal name.
"""
if guess or not journal_name:
return guess_journal_name(ln, journal_name)
else:
return journal_name
def wash_issue_number(ln, journal_name, issue_number):
"""
Washes an issue number to fit the pattern ww/YYYY, e.g. 50/2007
w/YYYY is also accepted and transformed to 0w/YYYY, e.g. 2/2007 -> 02/2007
If no issue number is found, tries to get the current issue
"""
if issue_number == "":
return get_current_issue(ln, journal_name)
else:
issue_number_match = issue_number_pattern.match(issue_number)
if issue_number_match:
issue_number = issue_number_match.group()
number, year = issue_number.split('/')
number_issues_per_year = get_journal_nb_issues_per_year(journal_name)
precision = len(str(number_issues_per_year))
return ("%0" + str(precision) + "i/%s") % (int(number), year)
else:
raise InvenioWebJournalIssueNumberBadlyFormedError(ln,
issue_number)
def wash_category(ln, category, journal_name, issue):
"""
Washes a category name.
"""
categories = get_journal_categories(journal_name, issue=None)
if category in categories:
return category
elif category == "" and len(categories) > 0:
return categories[0]
else:
raise InvenioWebJournalNoCategoryError(ln,
category,
categories)
def wash_article_number(ln, number, journal_name):
"""
Washes an article number. First checks if it is non-empty, then if it is
convertable to int. If all passes, returns the number, else throws
exception.
"""
if number == "":
raise InvenioWebJournalNoArticleNumberError(ln, journal_name)
try:
int(number)
except:
raise InvenioWebJournalNoArticleNumberError(ln, journal_name)
return number
def wash_popup_record(ln, record, journal_name):
"""
"""
if record == "":
raise InvenioWebJournalNoPopupRecordError(ln, journal_name,
"no recid")
try:
int(record)
except:
raise InvenioWebJournalNoPopupRecordError(ln, journal_name,
record)
return record
def wash_archive_date(ln, journal_name, archive_date):
"""
Washes an archive date to the form dd/mm/yyyy or empty.
"""
if archive_date == "":
return ""
try:
time.strptime(archive_date, "%d/%m/%Y")
except:
raise InvenioWebJournalArchiveDateWronglyFormedError(ln,
archive_date)
return archive_date

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