没有返回结果

[peichenzhong]

from flask import Flask
from flask_sqlalchemy import SQLAlchemy
from whoosh.analysis import StemmingAnalyzer
import flask_whooshalchemyplus
import config
from datetime import datetime
app=Flask(name)
app.config.from_object(config)
db=SQLAlchemy(app)
app.config['WHOOSH_BASE'] = 'path/to/whoosh/base'
class BlogPost(db.Model):
tablename = 'blogpost'
searchable = ['title', 'content'] # these fields will be indexed by whoosh
analyzer = StemmingAnalyzer () # configure analyzer; defaults to
# StemmingAnalyzer if not specified

id = db.Column(db.Integer, primary_key=True)
title = db.Column(db.String(100)) # Indexed fields are either String,
content = db.Column(db.Text) # Unicode, or Text
created = db.Column(db.DateTime, default=datetime.now)

flask_whooshalchemyplus.init_app(app)

db.drop_all()
db.create_all()
db.session.add(
BlogPost(title='My cool title', content='This is the first post.')
); db.session.commit()
@app.route('/')
def index():
results = BlogPost.query.whoosh_search('cool')
print(results.all())
print(results)
return 'jeiguo %s '%(results)

if name=='main':
app.run()

结果为

请问哪里错了 什么返回的结果为空