How to use Webman framework to implement online survey and voting functions?

How to use the Webman framework to implement online survey and voting functions?

Introduction:
With the rapid development of the Internet, more and more people have begun to actively participate in various surveys and voting activities. In order to facilitate users to participate in and manage these activities, we need an easy-to-use and powerful online survey and voting system. This article will introduce how to use the Webman framework to achieve this function.

1. Introduction to Webman Framework
Webman is a lightweight Web framework developed based on Python language. It provides a set of simple and easy-to-use APIs to quickly build Web applications. The Webman framework has flexible routing configuration, template support, database operations and other functions, making it very suitable for building online surveys and voting systems.

2. System Requirements Analysis
Before starting the implementation, we first need to clarify the system requirements, including user management, survey management, voting management and other functions. The following are our system requirements:

1. User management: Users can register, log in and log out of the system.
2. Survey Management: Users can create new surveys and set related questions and options.
3. Voting Management: Users can participate in surveys and vote on questions.
4. Statistical management: The system can count and display the results of the survey.

3. Install the Webman framework
First, we need to install the Webman framework locally. You can use the following command to install Webman dependencies:

pip install webman

4. Create a Web application
We can use the command line tool provided by Webman to create a new Web application. Open a command line terminal and execute the following command:

webman new survey_app

This will create a new project named survey_app in the current directory. Enter the project directory and execute the following command to install the project dependencies:

cd survey_app
pip install -r requirements.txt

5. Write code

1. User management
   In the Webman framework, we can use decorators to define routes . Add the following code in the views.py file of the project:

from webman import redirect, request
from webman.decorators import login_required

@login_required
def home(request):
    # 用户登录后显示的页面
    return "Welcome to Survey App!"

def login(request):
    # 处理用户登录的逻辑
    username = request.form.get('username')
    password = request.form.get('password')
    # 验证用户名和密码
    # 登录成功后重定向到主页
    return redirect('/')

def logout(request):
    # 处理用户退出登录的逻辑
    # 清空用户的登录状态
    # 重定向到登录页面
    return redirect('/login')

def register(request):
    # 处理用户注册的逻辑
    username = request.form.get('username')
    password = request.form.get('password')
    # 创建新用户并保存到数据库
    # 注册成功后重定向到登录页面
    return redirect('/login')

2. Survey Management
   Add the following code in the views.py file Code:

from webman import redirect, request
from webman.decorators import login_required

@login_required
def create_survey(request):
    # 处理创建调查的逻辑
    # 获取用户提交的问题和选项，并保存到数据库
    # 创建成功后重定向到调查详情页面
    return redirect('/survey/1')

@login_required
def survey_detail(request, survey_id):
    # 处理查看调查详情的逻辑
    # 根据调查ID从数据库中获取调查信息
    # 渲染模板并返回给用户
    return render_template('survey_detail.html', survey=survey)

@login_required
def delete_survey(request, survey_id):
    # 处理删除调查的逻辑
    # 根据调查ID从数据库中删除调查信息
    # 重定向到调查列表页面
    return redirect('/surveys')

3. Voting Management
   Add the following code in the views.py file:

from webman import redirect, request
from webman.decorators import login_required

@login_required
def vote(request, survey_id):
    # 处理用户投票的逻辑
    # 获取用户选择的选项，并保存到数据库
    # 投票成功后重定向到调查详情页面
    return redirect('/survey/1')

@login_required
def view_results(request, survey_id):
    # 处理查看调查结果的逻辑
    # 从数据库中获取调查的结果
    # 渲染模板并返回给用户
    return render_template('survey_results.html', results=results)

6. Run the application
Execute the following command in the project root directory to start the application:

python manage.py runserver

Open the browser and visit localhost:5000 to view the homepage of the application.

7. Summary
This article introduces how to use the Webman framework to implement a simple online survey and voting system. Through Webman's simple API and powerful functions, we can quickly build a fully functional website application. At the same time, through the guidance of code examples, readers can have a deeper understanding of the processes and technologies of web development.

It should be noted that this article is just a simple example. In actual applications, more exceptions and complex logic need to be handled. I hope readers can further explore the esoteric aspects of web development by studying this article.

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