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Flask 构建微电影视频网站

已上线演示地址: http://movie.tbquan.cn

会员登录装饰器

在home.views.py中创建登录装饰器

from functools import wraps

# 要求登录才能访问
def user_login_require(func):
    @wraps(func)
    def decorated_function(*args, **kwargs):
        if session.get('login_user', None) is None:
            # 如果session中未找到该键，则用户需要登录
            return redirect(url_for('home.login', next=request.url))
        return func(*args, **kwargs)

    return decorated_function

增加登录装饰器

@home.route('/user/')
@user_login_require
def user():
    return render_template('home/user.html')

也需要将以下功能添加要求登录。

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会员资料修改

创建会员资料表单

class UserDetailForm(FlaskForm):
    name = StringField(
        label='昵称',
        validators=[
            DataRequired('请输入昵称！')
        ],
        description='昵称',
        render_kw={
            'class': "form-control",
            'placeholder': "请输入昵称",
            'required': "required",
            'autofocus': "autofocus"
        }
    )
    email = StringField(
        label='邮箱',
        validators=[
            DataRequired('请输入邮箱！'),
            Email('邮箱格式不正确')
        ],
        description='邮箱',
        render_kw={
            'class': "form-control",
            'placeholder': "请输入邮箱",
            'required': "required",
            'autofocus': "autofocus"
        }
    )
    phone = StringField(
        label='手机',
        validators=[
            DataRequired('请输入手机！'),
            Regexp('^1[3|4|5|6|7|8][0-9]\d{4,8}$', message='手机格式不正确')
        ],
        description='手机',
        render_kw={
            'class': "form-control",
            'placeholder': "请输入手机",
            'required': "required",
            'autofocus': "autofocus"
        }
    )
    face = FileField(
        label='头像',
        validators=[
            DataRequired('请上传头像')
        ],
        description='头像',
    )
    info = TextAreaField(
        label='简介',
        validators=[
            DataRequired('请输入简介！')
        ],
        description='简介',
        render_kw={
            'class': "form-control",
            'rows': "10",
        }
    )
    submit = SubmitField(
        label='保存',
        render_kw={
            'class': "btn btn-success"
        }
    )

修改user会员资料视图

from werkzeug.utils import secure_filename
import os
from app import db, app

@home.route('/user/', methods=['GET', 'POST'])
@user_login_require
def user():
    login_user = User.query.get_or_404(int(session['login_user_id']))
    form = UserDetailForm(
        name=login_user.name,
        email=login_user.email,
        phone=login_user.phone,
        info=login_user.info
    )
    form.face.validators = []
    form.face.render_kw = {'required': False}
    if form.validate_on_submit():
        data = form.data
        face_save_path = app.config['USER_IMAGE']
        if not os.path.exists(face_save_path):
            os.makedirs(face_save_path)  # 如果文件保存路径不存在，则创建一个多级目录
            import stat
            os.chmod(face_save_path, stat.S_IRWXU)  # 授予可读写权限

        if form.face.data:
            # 上传文件不为空保存
            if login_user.face and os.path.exists(os.path.join(face_save_path, login_user.face)):
                os.remove(os.path.join(face_save_path, login_user.face))
            # 获取上传文件名称
            file_face = secure_filename(form.face.data.filename)
            # !!!AttributeError: 'str' object has no attribute 'filename'，前端需要加上enctype="multipart/form-data"
            from app.admin.views import change_filename
            login_user.face = change_filename(file_face)
            form.face.data.save(face_save_path + login_user.face)

        if login_user.name != data['name'] and User.query.filter_by(name=data['name']).count() == 1:
            flash('昵称已经存在', 'err')
            return redirect(url_for('home.user'))
        login_user.name = data['name']

        if login_user.email != data['email'] and User.query.filter_by(email=data['email']).count() == 1:
            flash('邮箱已经存在', 'err')
            return redirect(url_for('home.user'))
        login_user.email = data['email']

        if login_user.phone != data['phone'] and User.query.filter_by(phone=data['phone']).count() == 1:
            flash('手机号已经存在', 'err')
            return redirect(url_for('home.user'))
        login_user.phone = data['phone']

        login_user.info = data['info']

        db.session.commit()
        flash('修改资料成功', 'ok')
        return redirect(url_for('home.user'))
    return render_template('home/user.html', form=form, login_user=login_user)

修改user.html会员资料模板

<div class="panel-body">
    {% with msgs = get_flashed_messages(category_filter=['ok']) %}
        {% if msgs %}
            {% for msg in msgs %}
                <p>{{ msg }}</p>
            {% endfor %}
        {% endif %}
    {% endwith %}
    {% with msgs = get_flashed_messages(category_filter=['err']) %}
        {% if msgs %}
            {% for msg in msgs %}
                <p>{{ msg }}</p>
            {% endfor %}
        {% endif %}
    {% endwith %}
    <form role="form" method="post" enctype="multipart/form-data">
        <fieldset>
            <div class="form-group">
                <label for="input_name"><span class="glyphicon glyphicon-user"></span>&nbsp;{{ form.name.label }}</label>
                {{ form.name }}
            </div>
            {% for err in form.name.errors %}
                <div class="col-md-12" style="color: red">{{ err }}</div>
            {% endfor %}
            <div class="form-group">
                <label for="input_email"><span class="glyphicon glyphicon-envelope"></span>&nbsp;{{ form.email.label }}</label>
                {{ form.email }}
            </div>
            {% for err in form.email.errors %}
                <div class="col-md-12" style="color: red">{{ err }}</div>
            {% endfor %}
            <div class="form-group">
                <label for="input_phone"><span class="glyphicon glyphicon-phone"></span>&nbsp;{{ form.phone.label }}</label>
                {{ form.phone }}
            </div>
            {% for err in form.phone.errors %}
                <div class="col-md-12" style="color: red">{{ err }}</div>
            {% endfor %}
            <div class="form-group">
                <label for="input_face"><span class="glyphicon glyphicon-picture"></span>&nbsp;{{ form.face.label }}</label>
                {% if login_user.face %}
                    <img src="{{ url_for('static', filename='user/'+login_user.face) }}" class="img-responsive img-rounded" style="width: 100px">
                {% else %}
                    <img data-src="holder.js/100x100" class="img-responsive img-rounded">
                {% endif %}
                {{ form.face }}
            </div>
            {% for err in form.face.errors %}
                <div class="col-md-12" style="color: red">{{ err }}</div>
            {% endfor %}
            <div class="form-group">
                <label for="input_info"><span class="glyphicon glyphicon-edit"></span>&nbsp;{{ form.info.label }}</label>
                {{ form.info }}
            </div>
            {% for err in form.info.errors %}
                <div class="col-md-12" style="color: red">{{ err }}</div>
            {% endfor %}
            {{ form.csrf_token }}
            {{ form.submit }}
        </fieldset>
    </form>
</div>

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会员密码修改

创建会员密码修改表单

class PwdForm(FlaskForm):
    oldpwd = PasswordField(
        label='旧密码',
        validators=[
            DataRequired('请输入旧密码！')
        ],
        description='旧密码',
        render_kw={
            'class': "form-control",
            'placeholder': "请输入旧密码",
            'required': "required",
            'autofocus': 'autofocus'
        }
    )
    newpwd = PasswordField(
        label='新密码',
        validators=[
            DataRequired('请输入新密码！')
        ],
        description='新密码',
        render_kw={
            'class': "form-control",
            'placeholder': "请输入新密码",
            'required': "required",
            'autofocus': 'autofocus'
        }
    )
    repwd = PasswordField(
        label='重复密码',
        validators=[
            DataRequired('请输入重复密码！'),
            EqualTo('newpwd', message='两次密码不一致')
        ],
        description='重复密码',
        render_kw={
            'class': "form-control",
            'placeholder': "请输入重复密码",
            'required': "required"
        }
    )
    submit = SubmitField(
        label='修改密码',
        render_kw={
            'class': "btn btn-success"
        }
    )

修改pwd修改密码视图

@home.route('/pwd/', methods=['GET', 'POST'])
@user_login_require
def pwd():
    login_user = User.query.get_or_404(int(session['login_user_id']))
    form = PwdForm()
    if form.validate_on_submit():
        data = form.data
        if login_user.check_pwd(data['oldpwd']):
            login_user.pwd = generate_password_hash(data['newpwd'])
            db.session.commit()
            flash('密码修改成功，请重新登录', category='ok')
            return redirect(url_for('home.login'))
        else:
            flash('旧密码不正确', category='err')
            return redirect(url_for('home.pwd'))
    return render_template('home/pwd.html', form=form)

修改pwd.html修改密码模板

<div class="panel-body">
    {% with msgs = get_flashed_messages(category_filter=['ok']) %}
        {% if msgs %}
            {% for msg in msgs %}
                <p>{{ msg }}</p>
            {% endfor %}
        {% endif %}
    {% endwith %}
    {% with msgs = get_flashed_messages(category_filter=['err']) %}
        {% if msgs %}
            {% for msg in msgs %}
                <p>{{ msg }}</p>
            {% endfor %}
        {% endif %}
    {% endwith %}
    <form role="form" method="post">
        <fieldset>
            <div class="form-group">
                <label for="input_oldpwd"><span class="glyphicon glyphicon-lock"></span>&nbsp;{{ form.oldpwd.label }}</label>
                {{ form.oldpwd }}
            </div>
            {% for err in form.oldpwd.errors %}
                <div class="col-md-12" style="color: red">{{ err }}</div>
            {% endfor %}
            <div class="form-group">
                <label for="input_newpwd"><span class="glyphicon glyphicon-lock"></span>&nbsp;{{ form.newpwd.label }}</label>
                {{ form.newpwd }}
            </div>
            {% for err in form.newpwd.errors %}
                <div class="col-md-12" style="color: red">{{ err }}</div>
            {% endfor %}
            <div class="form-group">
                <label for="input_newpwd"><span class="glyphicon glyphicon-lock"></span>&nbsp;{{ form.repwd.label }}</label>
                {{ form.repwd }}
            </div>
            {% for err in form.repwd.errors %}
                <div class="col-md-12" style="color: red">{{ err }}</div>
            {% endfor %}
            {{ form.csrf_token }}
            {{ form.submit }}
        </fieldset>
    </form>
</div>

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