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pelican-theme/pelican/contents.py

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Python

# -*- coding: utf-8 -*-
from pelican.utils import slugify, truncate_html_words
from pelican.log import *
from pelican.settings import _DEFAULT_CONFIG
from datetime import datetime
from os import getenv
from sys import platform, stdin
import locale
class Page(object):
"""Represents a page
Given a content, and metadata, create an adequate object.
:param content: the string to parse, containing the original content.
"""
mandatory_properties = ('title',)
def __init__(self, content, metadata=None, settings=None,
filename=None):
# init parameters
if not metadata:
metadata = {}
if not settings:
settings = _DEFAULT_CONFIG
self._content = content
self.translations = []
local_metadata = dict(settings.get('DEFAULT_METADATA', ()))
local_metadata.update(metadata)
# set metadata as attributes
for key, value in local_metadata.items():
setattr(self, key.lower(), value)
# default author to the one in settings if not defined
if not hasattr(self, 'author'):
if 'AUTHOR' in settings:
self.author = settings['AUTHOR']
else:
self.author = getenv('USER', 'John Doe')
warning(u"Author of `{0}' unknow, assuming that his name is `{1}'".format(filename or self.title, self.author))
# manage languages
self.in_default_lang = True
if 'DEFAULT_LANG' in settings:
default_lang = settings['DEFAULT_LANG'].lower()
if not hasattr(self, 'lang'):
self.lang = default_lang
self.in_default_lang = (self.lang == default_lang)
# create the slug if not existing, fro mthe title
if not hasattr(self, 'slug') and hasattr(self, 'title'):
self.slug = slugify(self.title)
# create save_as from the slug (+lang)
if not hasattr(self, 'save_as') and hasattr(self, 'slug'):
if self.in_default_lang:
if settings.get('CLEAN_URLS', False):
self.save_as = '%s/index.html' % self.slug
else:
self.save_as = '%s.html' % self.slug
clean_url = '%s/' % self.slug
else:
if settings.get('CLEAN_URLS', False):
self.save_as = '%s-%s/index.html' % (self.slug, self.lang)
else:
self.save_as = '%s-%s.html' % (self.slug, self.lang)
clean_url = '%s-%s/' % (self.slug, self.lang)
# change the save_as regarding the settings
if settings.get('CLEAN_URLS', False):
self.url = clean_url
elif hasattr(self, 'save_as'):
self.url = self.save_as
if filename:
self.filename = filename
# manage the date format
if not hasattr(self, 'date_format'):
if hasattr(self, 'lang') and self.lang in settings['DATE_FORMATS']:
self.date_format = settings['DATE_FORMATS'][self.lang]
else:
self.date_format = settings['DEFAULT_DATE_FORMAT']
if isinstance(self.date_format, tuple):
locale.setlocale(locale.LC_ALL, self.date_format[0])
self.date_format = self.date_format[1]
if hasattr(self, 'date'):
if platform == 'win32':
self.locale_date = self.date.strftime(self.date_format.encode('ascii','xmlcharrefreplace')).decode(stdin.encoding)
else:
self.locale_date = self.date.strftime(self.date_format.encode('ascii','xmlcharrefreplace')).decode('utf')
# manage status
if not hasattr(self, 'status'):
self.status = settings['DEFAULT_STATUS']
if not settings['WITH_FUTURE_DATES']:
if hasattr(self, 'date') and self.date > datetime.now():
self.status = 'draft'
# set summary
if not hasattr(self, 'summary'):
self.summary = truncate_html_words(self.content, 50)
def check_properties(self):
"""test that each mandatory property is set."""
for prop in self.mandatory_properties:
if not hasattr(self, prop):
raise NameError(prop)
@property
def content(self):
if hasattr(self, "_get_content"):
content = self._get_content()
else:
content = self._content
return content
def _get_summary(self):
"""Returns the summary of an article, based on to the content"""
return truncate_html_words(self.content, 50)
def _set_summary(self, summary):
"""Dummy function"""
pass
summary = property(_get_summary, _set_summary, \
"Summary of the article. Based on the content. Can't be set")
class Article(Page):
mandatory_properties = ('title', 'date', 'category')
class Quote(Page):
base_properties = ('author', 'date')
def is_valid_content(content, f):
try:
content.check_properties()
return True
except NameError, e:
error(u"Skipping %s: impossible to find informations about '%s'" % (f, e))
return False