Flask入门小项目 - 搭建极简博客(6)添加删除文章功能
目录:
零、效果
登录后即可进入Delete页面,输入文章id删除成功后,再到主页看那篇文章就不见了
一、修改app.py中的delete函数
@app.route('/delete', methods=['GET', 'POST'])
@login_required
def delete():
error = None
if request.method == 'POST':
article_id = request.form.get('article_id')
if len(article_id) == 0:
error = 'please input article id'
else:
article = Article.query.filter(Article.id == article_id).all()
if len(article) == 0:
error = 'this article id does not exist'
else:
db.session.delete(article[0])
db.session.commit()
flash('this article has been successfully deleted')
return redirect(url_for('delete'))
return render_template('delete.html', error=error)
二、delete.html
delete.html
{% extends "base.html" %}
{% block body %}
<h2>Delete</h2>
{% if error %}
<p class=error><strong>Error:</strong> {{ error }}
{% endif %}
<form action="{{ url_for('delete') }}" method=post>
<dl>
<dt>input article id:
<dd><input type=text size=30 name=article_id>
<dd><input type=submit value=Delete>
</dl>
</form>
{% endblock %}
Final
至此,这个极简博客就完成了
接下来把它部署到阿里云上,并实现外网访问
先到pycharm底下的Terminal中输入
pip freeze >requirements.txt
生成本项目的依赖文件,方便后面移植