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WeatherService.py
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Wed, Dec 18, 20:19

WeatherService.py
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# -*- coding: utf-8 -*-
##
## This file is part of Invenio.
## Copyright (C) 2012 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.
"""
WebSearch service to display weather information
"""
from invenio.modules.search.services import SearchService
from invenio.base.i18n import gettext_set_language
from invenio.modules.bulletin.format_elements import \
bfe_webjournal_widget_weather
try:
from invenio.modules.bulletin.format_elements import \
bfe_webjournal_widget_weather_meteoblue
meteoblue_widget_available_p = True
except:
meteoblue_widget_available_p = False
from invenio.modules.formatter.engine import BibFormatObject
from invenio.config import CFG_SITE_LANG
__plugin_version__ = "Search Service Plugin API 1.0"
class WeatherService(SearchService):
"""
Display local weather info
"""
def get_description(self, ln=CFG_SITE_LANG):
"Return service description"
return "Return weather info"
def answer(self, req, user_info, of, cc, colls_to_search, p, f, search_units, ln):
"""
Answer question given by context.
Return (relevance, html_string) where relevance is integer
from 0 to 100 indicating how relevant to the question the
answer is (see C{CFG_WEBSEARCH_SERVICE_MAX_SERVICE_ANSWER_RELEVANCE} for details) ,
and html_string being a formatted answer.
"""
if f:
return (0, '')
words = [unit[1].lower() for unit in search_units if unit[2] == ""]
if not words:
return (0, '')
_ = gettext_set_language(ln)
if not _("weather").lower() in words and \
not "météo" in words and \
not "meteo" in words:
return (0, '')
bfo = BibFormatObject(0)
if meteoblue_widget_available_p:
output = bfe_webjournal_widget_weather_meteoblue.format_element(bfo)
else:
output = bfe_webjournal_widget_weather.format_element(bfo, display_weather_icon='true')
if not output:
return (0, '')
return (100, output)

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