So common use case of a Search Engine.. Don’t you observe Google highlights the keywords the user searches for? That is what we achieve in this example below
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import whoosh,os | |
| from whoosh import index | |
| import whoosh.index | |
| import whoosh.fields | |
| import whoosh.qparser | |
| import tornado.ioloop | |
| import tornado.web | |
| from whoosh import analysis, fields, formats, query, highlight | |
| class Search(object): | |
| def __init__(self, indexdir, searchstr=None): | |
| self.indexdir = indexdir | |
| self.searchstr = searchstr | |
| def searcher(self): | |
| schema = whoosh.fields.Schema( | |
| path = whoosh.fields.ID(unique=True, stored=True), | |
| title = whoosh.fields.TEXT(stored=True, phrase=False), | |
| content = whoosh.fields.TEXT(stored=True, spelling=True), | |
| tag = whoosh.fields.TEXT(stored=True), | |
| category = whoosh.fields.TEXT(stored=True)) | |
| if not os.path.exists(self.indexdir): | |
| os.mkdir(self.indexdir) | |
| ix = index.create_in(self.indexdir, schema) | |
| writer = ix.writer() | |
| writer.add_document(title=u"Welcome", content=u"This is welcome blog!", | |
| path=u"/welcome", tag=u"Welcome", category=u"Welcome") | |
| writer.add_document(title=u"Python Whoosh", content=u"Whoosh search library in pure Python", | |
| path=u"/whoosh", tag=u"whoosh", category=u"Search") | |
| writer.add_document(title=u"Python Tornado", content=u"Tornado Web Server for real-time web apps", | |
| path=u"/tornado", tag=u"tornado", category=u"Web Server") | |
| writer.add_document(title=u"Python Tornado Async", content=u"Tornado Web Server provides async web requests", | |
| path=u"/tornadoasync", tag=u"async", category=u"Web Server") | |
| writer.add_document(title=u"Python Tornado Templates", content=u"Tornado Web Server has template feature", | |
| path=u"/tornadotemplates", tag=u"templates", category=u"Web Server") | |
| writer.add_document(title=u"Python Tornado", content=u"Tornado Web Server is awesome", | |
| path=u"/tornado", tag=u"great", category=u"Web Server") | |
| writer.commit() | |
| _queryparser = whoosh.qparser.QueryParser('content', schema=schema) | |
| s = ix.searcher() | |
| return s | |
| class Home(tornado.web.RequestHandler): | |
| def get(self): | |
| self.write('It Works!') | |
| class HighLighted(tornado.web.RequestHandler): | |
| def get(self): | |
| self.render('highlighted.html') | |
| def post(self): | |
| from whoosh import qparser | |
| qstring = self.get_argument('qstring') | |
| srch = Search('./indexer') | |
| s = srch.searcher() | |
| results = s.search(query.Term('content', qstring), limit=10) | |
| titles = ''; contents = '' | |
| for hit in results: | |
| titles += hit["title"] + ' ' | |
| contents += hit.highlights("content") + ' ' | |
| self.write('Titles Hit: ' + titles + '<br /> ' + 'Contents Hit: ' + contents) | |
| application = tornado.web.Application([ | |
| (r"/",Home ), | |
| (r"/highlighted", HighLighted ), | |
| ]) | |
| if __name__ == "__main__": | |
| application.listen(7777) | |
| tornado.ioloop.IOLoop.instance().start() |
Search results for highlighted search
