博客設計

1、系統概要說明html

一、設計數據庫,數據庫設計是網站設計的重點,須要對網站需求進行分析,設計適合網站需求的數據庫。數據庫

二、註冊頁面,設計網站須要用戶的使用,註冊則是重要的一部分,用戶註冊須要對用戶信息的管理,所以,須要數據庫的鏈接,進行用戶註冊的驗證。安全

三、登陸功能,在用戶註冊了帳號後,擁有了該網站的使用權,則能夠進行登陸,而登陸也須要數據庫的驗證。session

四、用戶發佈問答,該網站是博客的發佈平臺,用戶能夠將身邊的見聞發佈到網站,此功能也須要數據庫的鏈接,將用戶發表的問答存到數據庫的question表中,以用戶惟一的id號做爲外鍵。app

五、用戶發佈博客的問答後則會跳到網站首頁,首頁是展現該網站的因此博客信息,以發佈的最新日期排序進行展現,用戶可根據興趣點擊查看網站的博客標題,進入博客的詳情頁面,瞭解博客的具體信息。數據庫設計

六、博客詳情頁中具備評論及推薦文章功能,用戶可對博客進行評論發表還可對文章進行點贊及收藏,此操做過程存入數據庫的comment表中,以用戶id做爲外鍵;網站還根據用戶感興趣的博客推薦相應類型的文章。網站

七、我的中心頁面,網站根據用戶的活躍度,呈現用戶發佈的新聞,評論文章,收藏文章以及點贊。加密

八、網站具備模糊搜索功能,當用戶查找相應信息是,可根據用戶輸入的信息進行模糊搜索,提升用戶的體驗度。url

九、密碼保護功能,用戶註冊時設置的密碼存儲到數據庫中,此時數據會將用戶的密碼進行加密,提升用戶使用的安全性。設計

 

2、網站結構設計

1.登陸註冊

 

 

2.修改我的信息

 

 

 

 

 

 

3.搜索

 

 

4.發佈博客和評論

 

三.模塊詳細設計

1.首頁模塊

@app.route('/')

def index():

    if request.args.get('info'):

        info = request.args.get('info')

    else:

        info = None;

    context = {

        'questions': Question.query.order_by('-creat_time').all(),

        'cf': Cf.query.all(),

        'info': info,

        'hot': Question.query.order_by('-click').all()[0:5]

    } return render_template('index.html', **context)

2.註冊模塊

@app.route('/regist/', methods=['GET', 'POST'])

def regist():

    if request.method == 'GET':

        # 打開註冊頁的模板

        return render_template('regist.html')

    else:  # 收到用戶上傳的信息

        username = request.form.get('username')

        password = request.form.get('password')

        user = User.query.filter(User.username == username).first()

        if user:

            return 'error:user exitst'

        else:

            user = User(username=username, password=password)

            db.session.add(user)  # 加入數據庫

            db.session.commit()

            return redirect(url_for('login'))

3.登陸模塊

@app.route('/login/', methods=['GET', 'POST'])
def login():
    if request.method == 'GET':
        return render_template('login.html')
    else:
        username = request.form.get('username')
        password = request.form.get('password')
        user = User.query.filter(User.username == username).first()
        if user:
            if user.check_password(password):
                session['username'] = user.username
                session['user_id'] = user.id
                session.permanent = True
                # 從新定位到首頁
                return redirect(url_for('index'))
            else:
                # 從新定位到註冊
                return redirect(url_for('login'))
        else:
            return redirect(url_for('login'))

4.發佈模塊

@app.route('/question', methods=['GET', 'POST'])
@loginFirst
def question():
    if request.method == 'GET':
        cf = Cf.query.all()
        return render_template('question.html', cf=cf)
    else:
        title = request.form.get('title')
        detail = request.form.get('detail')
        author_id = request.form.get('author_id')
        cf = request.form.get('cf')
        question = Question(title=title, detail=detail, author_id=author_id, cf=cf)
        db.session.add(question)  # 加入數據庫
        db.session.commit()
        return redirect(url_for('index'))

5.評論模塊

@app.route('/answer/', methods=['GET', 'POST'])
def answer():
    if request.method == 'POST':
        question_id = request.form.get('question_id')
        author_id = request.form.get('author_id')
        detail = request.form.get('detail')
        comment = Comment(question_id=question_id, author_id=author_id, detail=detail)
        db.session.add(comment)
        db.session.commit()
        return redirect(url_for('detail', question_id=question_id))
@app.route('/commentaries/<user_id>')
def commentaries(user_id):
    userCommentaries = Comment.query.filter(Comment.answer_id == user_id).all()
    num = len(userCommentaries)
    id = session.get('user_id')
    if id:
        user = User.query.filter(User.id == id).first()
    else:
        user = {}
    return render_template('commentaries.html', userCommentaries=userCommentaries, user=user, num=num)

6.更改我的信息

@app.route('/uploadLogo/<user_id>', methods=['GET', 'POST'])
def uploadLogo(user_id):
    user = User.query.filter(User.id == user_id).first()
    f = request.files['logo']
    basepath = os.path.dirname(__file__)  # 當前文件所在路徑
    upload_path = os.path.join(basepath, 'static/uploads', f.filename)  # 注意:沒有的文件夾必定要先建立,否則會提示沒有該路徑
    f.save(upload_path)
    user.icon = 'uploads/' + f.filename
    db.session.commit()
    return redirect(url_for('setPassword', id=user_id));
 
@app.route('/setPassword/<id>', methods=['GET', 'POST'])
@loginFirst
def setPassword(id):
    if request.method == 'GET':
        return render_template('setPassword.html')
    else:
        user = User.query.filter(User.id == id).first()
        if user:
            if user.check_password(request.form.get('old')):
                user.password = request.form.get('new1')
                db.session.commit()
                info = '修改爲功'
            else:
                info = '原密碼錯誤'
        else:
            info = '未知錯誤'
        return redirect(url_for('index', info=info))

7.模糊查詢

@app.route('/search')
def search():
    qu = request.args.get('q')
    c = '' if request.args.get('c') == '' else request.args.get('c')
    y = '' if request.args.get('y') == '' else request.args.get('y')
    query = Question.query.filter(
        or_(
            Question.title.contains(qu),
            Question.detail.contains(qu),
        ),
        Question.cf.like('%' + c + '%'),
        Question.creat_time.like('%' + y + '%'),
    ).order_by('-creat_time').all()
    context = {
        'questions': query,
        'cf': Cf.query.all(),
        'hot': Question.query.order_by('-click').all()[0:5]
    }
    return render_template('index.html', **context)

四.數據庫設計

 

Collection = db.Table(
    'collection',
    db.Column('id', db.Integer, primary_key=True, autoincrement=True),
    db.Column('book_id', db.Integer, db.ForeignKey('question.id')),  # 評論對應的文章的id
    db.Column('collection', db.Integer, db.ForeignKey('user.id')),  # 收藏用戶的id
    db.Column('createdate', db.DATETIME)  # 發佈時間
)
 
 
class User(db.Model):
    __tablename__ = 'user'
    # 創建一個表user
    id = db.Column(db.Integer, primary_key=True, autoincrement=True)
    username = db.Column(db.String(20), nullable=False)
    _password = db.Column(db.String(200), nullable=False)
    say = db.Column(db.String(50))
    icon = db.Column(db.String(50))
    collection = db.relationship('Question', secondary=Collection, backref=db.backref('user', lazy='dynamic'),
                                 lazy='dynamic')
 
    @property
    def password(self):
        return self._password
 
    @password.setter
    def password(self, row_password):
        self._password = generate_password_hash(row_password)
 
    def check_password(self, row_password):
        return check_password_hash(self._password, row_password)
 
 
class Comment(db.Model):
    __tablename__ = 'comment'
    id = db.Column(db.Integer, primary_key=True, autoincrement=True)
    author_id = db.Column(db.Integer, db.ForeignKey('user.id'))
    question_id = db.Column(db.Integer, db.ForeignKey('question.id'))
    creat_time = db.Column(db.DateTime, default=datetime.now())
    detail = db.Column(db.TEXT, nullable=False)
    question = db.relationship('Question', backref=db.backref('comment'))
    author = db.relationship('User', backref=db.backref('comment', order_by=creat_time.desc))
 
 
class Question(db.Model):
    __tablename__ = 'question'
    id = db.Column(db.Integer, primary_key=True, autoincrement=True)
    title = db.Column(db.String(100), nullable=False)
    detail = db.Column(db.Text, nullable=False)
    creat_time = db.Column(db.DateTime, default=datetime.now)
    author_id = db.Column(db.Integer, db.ForeignKey('user.id'))
    cf = db.Column(db.Integer, db.ForeignKey('cf.id'))
    look = db.Column(db.Integer)
    click = db.Column(db.Integer)
    author = db.relationship('User', backref=db.backref('question'))
    cfClass = db.relationship('Cf', backref=db.backref('question'))

六.成品展現

 

 

 

    

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