python+flask+sqlite3完成的小型部落格留言板，flasksqlite3

python+flask+sqlite3完成的小型部落格留言板，flasksqlite3

# all the importsfrom __future__ import with_statementfrom contextlib import closingimport sqlite3import timefrom flask import Flask, request, session, g, redirect, url_for, \     abort, render_template, flash# configurationDATABASE = 'E:/debug/python/flaskr/flaskr.db'DEBUG = TrueSECRET_KEY = 'development key'USERNAME = '1'PASSWORD = '1'app = Flask(__name__)app.config.from_object(__name__)app.config.from_envvar('FLASKR_SETTINGS', silent=True)def connect_db():    return sqlite3.connect(app.config['DATABASE'])def init_db():    with closing(connect_db()) as db:        with app.open_resource('schema.sql') as f:            db.cursor().executescript(f.read())        db.commit()@app.before_requestdef before_request():    g.db = connect_db()@app.after_requestdef after_request(response):    g.db.close()    return response@app.route('/')def show_entries():    cur = g.db.execute('select title, text, time from entries order by id desc')    entries = [dict(title=row[0], text=row[1], time=row[2]) for row in cur.fetchall()]    return render_template('show_entries.html', entries=entries)@app.route('/add', methods=['POST'])def add_entry():    if not session.get('logged_in'):        abort(401)    g.db.execute('insert into entries (title, text, time) values (?, ?, ?)',                 [request.form['title'], request.form['text'],                  time.strftime('%Y-%m-%d %H:%M:%S',time.localtime(time.time()))])    g.db.commit()    flash('New entry was successfully posted')    return redirect(url_for('show_entries'))@app.route('/login', methods=['GET', 'POST'])def login():    error = None    if request.method == 'POST':        if request.form['username'] != app.config['USERNAME']:            error = 'Invalid username'        elif request.form['password'] != app.config['PASSWORD']:            error = 'Invalid password'        else:            session['logged_in'] = True            flash('You were logged in')            return redirect(url_for('show_entries'))    return render_template('login.html', error=error)@app.route('/logout')def logout():    session.pop('logged_in', None)    flash('You were logged out')    return redirect(url_for('show_entries'))if __name__ == '__main__':    app.run()

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