如何使用flask-mongodb进行数据查询和日期过滤

pip install Flask
pip install pymongo

from flask import Flask
from flask_pymongo import PyMongo

app = Flask(__name__)
app.config['MONGO_URI'] = 'mongodb://localhost:27017/mydatabase'
mongo = PyMongo(app)

@app.route('/documents')
def get_documents():
    documents = mongo.db.collection.find()
    return render_template('documents.html', documents=documents)

@app.route('/documents/<category>')
def get_documents_by_category(category):
    documents = mongo.db.collection.find({'category': category})
    return render_template('documents.html', documents=documents)

from datetime import datetime

@app.route('/documents/<start_date>/<end_date>')
def get_documents_by_date(start_date, end_date):
    start = datetime.strptime(start_date, '%Y-%m-%d')
    end = datetime.strptime(end_date, '%Y-%m-%d')
    documents = mongo.db.collection.find({'date': {'$gte': start, '$lte': end}})
    return render_template('documents.html', documents=documents)