搜索功能不会显示搜索结果

Question

我使用flask-msearch 编写了搜索功能来搜索产品名称和类型，但搜索结果不会显示。当我在搜索栏中输入关键字时，我被定向到 searchResult.html 页面，但没有显示任何结果。所以我认为调用数据库有问题，或者没有创建数据库，但我不确定是什么问题。或者，如果这不起作用，是否还有其他方法可以执行搜索功能。

_ init _.py

from flask import render_template, request, redirect, url_for
from Forms import AddProduct
import shelve, Products
from Models import Products
from app import app, search, db


@app.route('/')
def home():
    return render_template('home.html')


@app.route('/searchResults')
def result():
    searchword = request.args.get('q')
    products = Products.query.msearch(searchword, fields=['name', 'type'], limit=3)
    return render_template('searchResults.html', products=products) 

app.py

from flask import Flask
from flask_sqlalchemy import SQLAlchemy
from flask_msearch import Search

app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///shop.db'

db = SQLAlchemy(app)
search = Search()
search.init_app(app)

模型.py

from app import db
from datetime import datetime


class Products(db.Model):
    __tablename__ = 'product'
    __searchable__ = ['name', 'type']
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(80), nullable=False)
    price = db.Column(db.Numeric(10,2), nullable=False)
    type = db.Column(db.Text, nullable=False)
    pub_date = db.Column(db.DateTime, nullable=False, default=datetime.utcnow)

    def __repr__(self):
        return '<Products %r>' % self.name

db.create_all()

_navbar.html

   <form class="form-inline ml-auto" action="{{url_for('result')}}">
      <div class="md-form my-0">
        <input class="form-control" type="search" placeholder="Search" aria-label="Search" name="q">
      </div>
      <button class="btn btn-outline-white btn-md my-0 ml-sm-2" type="submit">Search</button>
   </form>

searchResults.html

{% extends "base.html" %}
{% block title %}Search Results{% endblock %}

{% block content %}
<h1 class="display-4">Search Results</h1>
    {% for product in products %}
        {{product.name}}
    {% endfor %}
{% endblock %}