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#!/usr/bin/env python
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# encoding: utf-8
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# search controller for pylons
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# Copyright (C) 2009-2010 Marcin Kuzminski <marcin@python-works.com>
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; version 2
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# of the License or (at your opinion) any later version of the license.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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# MA 02110-1301, USA.
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"""
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Created on Aug 7, 2010
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search controller for pylons
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@author: marcink
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"""
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from pylons import request, response, session, tmpl_context as c, url
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from pylons.controllers.util import abort, redirect
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from pylons_app.lib.auth import LoginRequired
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from pylons_app.lib.base import BaseController, render
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from pylons_app.lib.indexers import ANALYZER, IDX_LOCATION, SCHEMA
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from webhelpers.html.builder import escape
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from whoosh.highlight import highlight, SimpleFragmenter, HtmlFormatter, \
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ContextFragmenter
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from whoosh.index import open_dir, EmptyIndexError
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from whoosh.qparser import QueryParser, QueryParserError
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from whoosh.query import Phrase
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import logging
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import traceback
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log = logging.getLogger(__name__)
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class SearchController(BaseController):
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@LoginRequired()
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def __before__(self):
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super(SearchController, self).__before__()
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def index(self):
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c.formated_results = []
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c.runtime = ''
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search_items = set()
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c.cur_query = request.GET.get('q', None)
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if c.cur_query:
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cur_query = c.cur_query.lower()
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if c.cur_query:
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try:
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idx = open_dir(IDX_LOCATION, indexname='HG_INDEX')
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searcher = idx.searcher()
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qp = QueryParser("content", schema=SCHEMA)
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try:
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query = qp.parse(unicode(cur_query))
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if isinstance(query, Phrase):
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search_items.update(query.words)
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else:
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for i in query.all_terms():
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search_items.add(i[1])
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log.debug(query)
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log.debug(search_items)
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results = searcher.search(query)
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c.runtime = '%s results (%.3f seconds)' \
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% (len(results), results.runtime)
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analyzer = ANALYZER
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formatter = HtmlFormatter('span',
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between='\n<span class="break">...</span>\n')
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#how the parts are splitted within the same text part
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fragmenter = SimpleFragmenter(200)
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#fragmenter = ContextFragmenter(search_items)
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for res in results:
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d = {}
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d.update(res)
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hl = highlight(escape(res['content']), search_items,
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analyzer=analyzer,
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fragmenter=fragmenter,
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formatter=formatter,
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top=5)
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f_path = res['path'][res['path'].find(res['repository']) \
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+ len(res['repository']):].lstrip('/')
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d.update({'content_short':hl,
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'f_path':f_path})
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#del d['content']
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c.formated_results.append(d)
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except QueryParserError:
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c.runtime = 'Invalid search query. Try quoting it.'
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except (EmptyIndexError, IOError):
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log.error(traceback.format_exc())
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log.error('Empty Index data')
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c.runtime = 'There is no index to search in. Please run whoosh indexer'
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# Return a rendered template
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return render('/search/search.html')
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