【微电影】--后台管理(业务代码编写)

落日映苍穹つ 2022-12-23 03:22 130阅读 0赞

# 前言 #

后台管理

--------------------

# 管理员登陆 #

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 1]

*  调整我们models  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 2]  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 3]
 *  安装 flask-wtf form表单提交  
    进入虚拟环境，在虚拟环境中安装，我们需要的模块  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 4]

#!/usr/bin/env python
    # _*_ coding: utf-8 _*_
    # @Time : 2020/11/20 23:22
    # @Author : zhaocunwei
    # @Version：V 0.1
    # @File : forms.py
    # @desc :
    
    from flask_wtf import FlaskForm
    from wtforms import StringField, PasswordField, SubmitField
    from wtforms.validators import DataRequired
    
    
    class LoginForm(FlaskForm):
        """管理员登录表单"""
        account = StringField(
            label='账号',
            validators=[
                DataRequired('请输入账号！')
            ],
            description='账号',
            render_Kw={ 
                'class': 'form-control',
                'placeholder': '请输入账号',
                'required': 'required'
            }
        )
        pwd = PasswordField(
            label='密码',
            validators=[
                DataRequired('请输入密码！')
            ],
            description='密码',
            render_kw={ 
                'class': 'form-control',
                'placeholder': '请输入密码！',
                'required': 'required'
            }
        )
        submit = SubmitField(
            '登录',
            render_kw={ 
                'class': 'btn btn-primary btn-block btn-flat',
    
            }
        )

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 5]

*  在登录方法中，添加form表单  
    校验密码：  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 6]  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 7]
 *  在没有登录情况下，添加访问控制，退出登录时从session删除  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 8]
 *  装饰器访问的控制  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 9]  
    优化装饰器  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 10]

# 标签管理 #

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 11]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 12]

*  在接口调用方法那，添加业务逻辑判断

@admin.route('/tag/add', methods=['GET', 'POST'])
    @admin_login_req
    def tag_add():
        form = TagForm()
        if form.validate_on_submit():
            data = form.data
            tag = Tag.query.filter_by(name=data['name']).count()
            if tag == 1:
                flash('名称已经存在！', 'err')
                return redirect(url_for('admin.tag_add'))
            tag = Tag(
                name=data['name']
            )
            db.session.add(tag)
            db.session.commit()
            flash('添加标签成功！', 'OK')
            redirect(url_for('admin.tag_add'))
        return render_template('admin/tag_add.html', form=form)

*  标签列表分页展示：

# 标签列表
    @admin.route('/tag/list/<int:page>/', methods=['GET'])
    def tag_list(page=None):
        if page is None:
            page = 1
        page_data = Tag.query.order_by(
            Tag.addtime.desc()
        ).paginate(page=page, per_page=10)
        return render_template('admin/tag_list.html', page_data=page_data)

*  标签的删除

# 标签删除
    @admin.route('/tag/del/<int:id>', methods=['GET'])
    @admin_login_req
    def tag_del(id=None):
        tag = Tag.query.filter_by(id=id).first_or_404()
        db.session.delete(tag)
        db.session.commit()
        flash('删除标签成功!', 'OK')
        redirect(url_for('admin.tag_list', page=1))

*  编辑标签

# 编辑标签
    @admin.route('/tag/edit/<int:id>', methods=['GET', 'POST'])
    @admin_login_req
    def tag_edit(id):
        form = TagForm()
        tag = Tag.query.get_or_404(id)
        if form.validate_on_submit():
            data = form.data
            tag_count = Tag.query.filter_by(name=data['name']).cout()
            if tag.name != data['name'] and tag_count == 1:
                flash('名称已经存在', 'err')
                return redirect(url_for('admin.tag_edit', id =id))
            tag.name = data['name']
            db.session.add(tag)
            db.session.commit()
            flash('修改标签成功', 'ok')
            redirect(url_for('admin.tag_edit'))
        return render_template('admin/tag_edit.html', form=form, tag=tag)

#  电影管理-添加电影 #

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 13]

# 电影列表
    @admin.route('/movie/list/<int:page>/', methods=['GET'])
    def movie_list(page=None):
        if page is None:
            page = 1
        page_data = Movie.query.join(Tag).filter(
            Tag.id == Movie.tag_id
        ).order_by(Movie.addtime.desc()).paginate(page=page, per_page=10)
        return render_template('admin/movie_list.html', page_data=page_data)

# 删除电影
    @admin.route('/movie/del/<int:id>/', methods=['GET'])
    @admin_login_req
    def movie_del(id=None):
        movie = Movie.query.get_or_404(int(id))
        db.session.delete(movie)
        db.session.commit()
        flash('删除电影成功！', 'ok')
        return redirect(url_for('admin.movie_list', page=1))
    
    
    
    # 编辑电影
    @admin.route('/movie/edit/<int:id>/', methods=['GET', 'POST'])
    @admin_login_req
    def movie_edit(id=None):
        form = MovieForm()
        form.url.validators = []
        form.logo.validators = []
        movie = Movie.query.get_or_404(int(id))
        if request.method == 'GET':
            form.info.data = movie.info
            form.tag_id.data = movie.tag_id
            form.star.data = movie.star
        if form.validate_on_submit():
            data = form.data
            movie_count = Movie.query.filter_by(title=data['title']).count()
            if movie_count == 1 and movie.title != data['title']:
                flash('修改电影失败！', 'err')
                return redirect(url_for('admin.movie_edit', id=id))
            # 如果目录不存在，就创建新的目录
            if not os.path.exists(app.config['UP_DIR']):
                os.makedirs(app.config['UP_DIR'])
                os.chmod(app.config['UP_DIR'], 'rw')
            if form.url.data.filename != '':
                file_url = secure_filename(form.url.data.filename)
                movie.url = chande_filename(file_url)
                form.url.data.save(app.config['UP_DIR'] + movie.url)
            if form.logo.data.filename !='':
                file_logo = secure_filename(form.logo.data.filename)
                movie.logo= change_fileanme(file_url)
                form.url.data.save(app.config['UP_DIR'] +movie.logo)
            movie.star = data['star']
            movie.tag_id = data['tag_id']
            movie.info = data['info']
            movie.title = data['title']
            movie.area = data['area']
            movie.length = data['length']
            movie.release_time = data['release_time']
            db.session.add(movie)
            db.session.commit()
            flash('修改电影成功', 'ok')
            return redirect(url_for('admin.movie_edit', id=movie.id))
        return render_template('admin/movie_edit.html', form=form, movie=movie)

# 预告管理 #

class PreviewForm(FlaskForm):
        title = StringField(
            label='预告标题',
            validators=[
                DataRequired('请输入片名')
            ],
            description='预告标题',
            render_kw={ 
                'class': 'form-control',
                'placeholder': '请输入预告标题',
            }
        )
        logo = FileField(
            label='预告封面',
            validators=[
                DataRequired("请上传预告封面")
            ],
            description='预告封面',
        )
        submit = SubmitField(
            '编辑',
            render_kw={ 
                'class': 'btn btn-primary',
            }
        )

#  #

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