标签：章节 07 verbose name 接口 course 课程 2022 14

课程表数据录入，课程分类接口，所有课程接口(过滤，排序)，课程详情接口（没有章节和课时的内容），所有章节接口(按课程过滤)，课程列表前端，课程详情前端

课程表数据录入

# 轻课 实战课 免费课    需要几个表
	-所有课程使用一个表  通过类型区分，但是可能出现字段不一样，数据量越来越多，导致表查询速度慢
    -一种课程一个表
       
# 实战课线---》分析出5张表
	-课程分类表  一个分类下有多个课程跟课程一对多
	-实战课表  一个实战课，会有多个章节，跟章节一对多
    -章节表   一个章节下有多个课时，章节和课时一对多
    -课时表
    -老师表   跟实战课一对多
    
    
    -正常课程 有评论，需要建立评论表，评论板块没写，这个表就不写了

建表

from django.db import models from utils.common_model import BaseModel

5张：课程分类，实战课，章节，课时，老师表

课程分类表
class CourseCategory(BaseModel):
"""分类"""
name = models.CharField(max_length=64, unique=True, verbose_name="分类名称")

class Meta:
    db_table = "luffy_course_category"
    verbose_name = "分类"
    verbose_name_plural = verbose_name

def __str__(self):
    return "%s" % self.name

实战课表
class Course(BaseModel):
"""课程"""
course_type = (
(0, '付费'),
(1, 'VIP专享'),
(2, '学位课程')
)
level_choices = (
(0, '初级'),
(1, '中级'),
(2, '高级'),
)
status_choices = (
(0, '上线'),
(1, '下线'),
(2, '预上线'),
)
name = models.CharField(max_length=128, verbose_name="课程名称")
course_img = models.ImageField(upload_to="courses", max_length=255, verbose_name="封面图片", blank=True, null=True)
course_type = models.SmallIntegerField(choices=course_type, default=0, verbose_name="付费类型")
brief = models.TextField(max_length=2048, verbose_name="详情介绍", null=True, blank=True)
level = models.SmallIntegerField(choices=level_choices, default=0, verbose_name="难度等级")
pub_date = models.DateField(verbose_name="发布日期", auto_now_add=True)
period = models.IntegerField(verbose_name="建议学习周期(day)", default=7)
attachment_path = models.FileField(upload_to="attachment", max_length=128, verbose_name="课件路径", blank=True,null=True)
status = models.SmallIntegerField(choices=status_choices, default=0, verbose_name="课程状态")

students = models.IntegerField(verbose_name="学习人数", default=0) # 跟用户表做关联，优化字段

sections = models.IntegerField(verbose_name="总课时数量", default=0)
pub_sections = models.IntegerField(verbose_name="课时更新数量", default=0)
price = models.DecimalField(max_digits=6, decimal_places=2, verbose_name="课程原价", default=0)

# on_delete 级联删除，出了级联删除外，还有 很多其他的，暂时先不讲
teacher = models.ForeignKey("Teacher", on_delete=models.DO_NOTHING, null=True, blank=True, verbose_name="授课老师")
course_category = models.ForeignKey("CourseCategory", on_delete=models.SET_NULL, db_constraint=False, null=True,blank=True, verbose_name="课程分类")
class Meta:
    db_table = "luffy_course"
    verbose_name = "课程"
    verbose_name_plural = "课程"

def __str__(self):
    return "%s" % self.name

章节表
class CourseChapter(BaseModel):
"""章节"""
# 章节跟课程一对多，关联字段写在多的一方
# related_name 暂时先不讲
course = models.ForeignKey("Course", related_name='coursechapters', on_delete=models.CASCADE, verbose_name="课程名称")
chapter = models.SmallIntegerField(verbose_name="第几章", default=1)
name = models.CharField(max_length=128, verbose_name="章节标题")
summary = models.TextField(verbose_name="章节介绍", blank=True, null=True)
pub_date = models.DateField(verbose_name="发布日期", auto_now_add=True)

class Meta:
    db_table = "luffy_course_chapter"
    verbose_name = "章节"
    verbose_name_plural = verbose_name

def __str__(self):
    return "%s:(第%s章)%s" % (self.course, self.chapter, self.name)

课时表

class CourseSection(BaseModel):
"""课时"""
section_type_choices = (
(0, '文档'),
(1, '练习'),
(2, '视频')
)
# 课时跟章节一对多，关联写段写在多的一方
chapter = models.ForeignKey("CourseChapter", related_name='coursesections', on_delete=models.CASCADE,verbose_name="课程章节")
name = models.CharField(max_length=128, verbose_name="课时标题")
orders = models.PositiveSmallIntegerField(verbose_name="课时排序")
section_type = models.SmallIntegerField(default=2, choices=section_type_choices, verbose_name="课时种类")
section_link = models.CharField(max_length=255, blank=True, null=True, verbose_name="课时链接",help_text="若是video，填vid,若是文档，填link")
duration = models.CharField(verbose_name="视频时长", blank=True, null=True, max_length=32) # 仅在前端展示使用
pub_date = models.DateTimeField(verbose_name="发布时间", auto_now_add=True)
free_trail = models.BooleanField(verbose_name="是否可试看", default=False)

class Meta:
    db_table = "luffy_course_section"
    verbose_name = "课时"
    verbose_name_plural = verbose_name

def __str__(self):
    return "%s-%s" % (self.chapter, self.name)

老师表

class Teacher(BaseModel):
"""导师"""
role_choices = (
(0, '讲师'),
(1, '导师'),
(2, '班主任'),
)
name = models.CharField(max_length=32, verbose_name="导师名")
role = models.SmallIntegerField(choices=role_choices, default=0, verbose_name="导师身份")
title = models.CharField(max_length=64, verbose_name="职位、职称")
signature = models.CharField(max_length=255, verbose_name="导师签名", help_text="导师签名", blank=True, null=True)
image = models.ImageField(upload_to="teacher", null=True, verbose_name="导师封面")
brief = models.TextField(max_length=1024, verbose_name="导师描述")

class Meta:
    db_table = "luffy_teacher"
    verbose_name = "导师"
    verbose_name_plural = verbose_name

def __str__(self):
    return "%s" % self.name 

# 执行迁移命令

数据录入：
-- 老师表
INSERT INTO luffy_teacher(id, orders, is_show, is_delete, created_time, updated_time, name, role, title, signature, image, brief) VALUES (1, 1, 1, 0, '2022-07-14 13:44:19.661327', '2022-07-14 13:46:54.246271', 'Alex', 1, '老男孩Python教学总监', '金角大王', 'teacher/alex_icon.png', '老男孩教育CTO & CO-FOUNDER 国内知名PYTHON语言推广者 51CTO学院2016\2017年度最受学员喜爱10大讲师之一 多款开源软件作者 曾任职公安部、飞信、中金公司、NOKIA中国研究院、华尔街英语、ADVENT、汽车之家等公司');

INSERT INTO luffy_teacher(id, orders, is_show, is_delete, created_time, updated_time, name, role, title, signature, image, brief) VALUES (2, 2, 1, 0, '2022-07-14 13:45:25.092902', '2022-07-14 13:45:25.092936', 'Mjj', 0, '前美团前端项目组架构师', NULL, 'teacher/mjj_icon.png', '是马JJ老师, 一个集美貌与才华于一身的男人，搞过几年IOS，又转了前端开发几年，曾就职于美团网任高级前端开发，后来因为不同意王兴(美团老板)的战略布局而出家做老师去了，有丰富的教学经验，开起车来也毫不含糊。一直专注在前端的前沿技术领域。同时，爱好抽烟、喝酒、烫头(锡纸烫)。 我的最爱是前端，因为前端妹子多。');

INSERT INTO luffy_teacher(id, orders, is_show, is_delete, created_time, updated_time, name, role, title, signature, image, brief) VALUES (3, 3, 1, 0, '2022-07-14 13:46:21.997846', '2022-07-14 13:46:21.997880', 'Lyy', 0, '老男孩Linux学科带头人', NULL, 'teacher/lyy_icon.png', 'Linux运维技术专家，老男孩Linux金牌讲师，讲课风趣幽默、深入浅出、声音洪亮到爆炸');
-- 分类表
INSERT INTO luffy_course_category(id, orders, is_show, is_delete, created_time, updated_time, name) VALUES (1, 1, 1, 0, '2022-07-14 13:40:58.690413', '2022-07-14 13:40:58.690477', 'Python');

INSERT INTO luffy_course_category(id, orders, is_show, is_delete, created_time, updated_time, name) VALUES (2, 2, 1, 0, '2022-07-14 13:41:08.249735', '2022-07-14 13:41:08.249817', 'Linux');
-- 课程表
INSERT INTO luffy_course(id, orders, is_show, is_delete, created_time, updated_time, name, course_img, course_type, brief, level, pub_date, period, attachment_path, status, students, sections, pub_sections, price, course_category_id, teacher_id) VALUES (1, 1, 1, 0, '2022-07-14 13:54:33.095201', '2022-07-14 13:54:33.095238', 'Python开发21天入门', 'courses/alex_python.png', 0, 'Python从入门到入土&&&Python从入门到入土&&&Python从入门到入土&&&Python从入门到入土&&&Python从入门到入土&&&Python从入门到入土&&&Python从入门到入土&&&Python从入门到入土&&&Python从入门到入土&&&Python从入门到入土&&&Python从入门到入土&&&Python从入门到入土', 0, '2022-07-14', 21, '', 0, 231, 120, 120, 0.00, 1, 1);

INSERT INTO luffy_course(id, orders, is_show, is_delete, created_time, updated_time, name, course_img, course_type, brief, level, pub_date, period, attachment_path, status, students, sections, pub_sections, price, course_category_id, teacher_id) VALUES (2, 2, 1, 0, '2022-07-14 13:56:05.051103', '2022-07-14 13:56:05.051142', 'Python项目实战', 'courses/mjj_python.png', 0, '', 1, '2022-07-14', 30, '', 0, 340, 120, 120, 99.00, 1, 2);

INSERT INTO luffy_course(id, orders, is_show, is_delete, created_time, updated_time, name, course_img, course_type, brief, level, pub_date, period, attachment_path, status, students, sections, pub_sections, price, course_category_id, teacher_id) VALUES (3, 3, 1, 0, '2022-07-14 13:57:21.190053', '2022-07-14 13:57:21.190095', 'Linux系统基础5周入门精讲', 'courses/lyy_linux.png', 0, '', 0, '2022-07-14', 25, '', 0, 219, 100, 100, 39.00, 2, 3);
-- 章节表
INSERT INTO luffy_course_chapter(id, orders, is_show, is_delete, created_time, updated_time, chapter, name, summary, pub_date, course_id) VALUES (1, 1, 1, 0, '2022-07-14 13:58:34.867005', '2022-07-14 14:00:58.276541', 1, '计算机原理', '', '2022-07-14', 1);

INSERT INTO luffy_course_chapter(id, orders, is_show, is_delete, created_time, updated_time, chapter, name, summary, pub_date, course_id) VALUES (2, 2, 1, 0, '2022-07-14 13:58:48.051543', '2022-07-14 14:01:22.024206', 2, '环境搭建', '', '2022-07-14', 1);

INSERT INTO luffy_course_chapter(id, orders, is_show, is_delete, created_time, updated_time, chapter, name, summary, pub_date, course_id) VALUES (3, 3, 1, 0, '2022-07-14 13:59:09.878183', '2022-07-14 14:01:40.048608', 1, '项目创建', '', '2022-07-14', 2);

INSERT INTO luffy_course_chapter(id, orders, is_show, is_delete, created_time, updated_time, chapter, name, summary, pub_date, course_id) VALUES (4, 4, 1, 0, '2022-07-14 13:59:37.448626', '2022-07-14 14:01:58.709652', 1, 'Linux环境创建', '', '2022-07-14', 3);
-- 课时表
INSERT INTO luffy_course_Section(id, is_show, is_delete, created_time, updated_time, name, orders, section_type, section_link, duration, pub_date, free_trail, chapter_id) VALUES (1, 1, 0, '2022-07-14 14:02:33.779098', '2022-07-14 14:02:33.779135', '计算机原理上', 1, 2, NULL, NULL, '2022-07-14 14:02:33.779193', 1, 1);

INSERT INTO luffy_course_Section(id, is_show, is_delete, created_time, updated_time, name, orders, section_type, section_link, duration, pub_date, free_trail, chapter_id) VALUES (2, 1, 0, '2022-07-14 14:02:56.657134', '2022-07-14 14:02:56.657173', '计算机原理下', 2, 2, NULL, NULL, '2022-07-14 14:02:56.657227', 1, 1);

INSERT INTO luffy_course_Section(id, is_show, is_delete, created_time, updated_time, name, orders, section_type, section_link, duration, pub_date, free_trail, chapter_id) VALUES (3, 1, 0, '2022-07-14 14:03:20.493324', '2022-07-14 14:03:52.329394', '环境搭建上', 1, 2, NULL, NULL, '2022-07-14 14:03:20.493420', 0, 2);

INSERT INTO luffy_course_Section(id, is_show, is_delete, created_time, updated_time, name, orders, section_type, section_link, duration, pub_date, free_trail, chapter_id) VALUES (4, 1, 0, '2022-07-14 14:03:36.472742', '2022-07-14 14:03:36.472779', '环境搭建下', 2, 2, NULL, NULL, '2022-07-14 14:03:36.472831', 0, 2);

INSERT INTO luffy_course_Section(id, is_show, is_delete, created_time, updated_time, name, orders, section_type, section_link, duration, pub_date, free_trail, chapter_id) VALUES (5, 1, 0, '2022-07-14 14:04:19.338153', '2022-07-14 14:04:19.338192', 'web项目的创建', 1, 2, NULL, NULL, '2022-07-14 14:04:19.338252', 1, 3);

INSERT INTO luffy_course_Section(id, is_show, is_delete, created_time, updated_time, name, orders, section_type, section_link, duration, pub_date, free_trail, chapter_id) VALUES (6, 1, 0, '2022-07-14 14:04:52.895855', '2022-07-14 14:04:52.895890', 'Linux的环境搭建', 1, 2, NULL, NULL, '2022-07-14 14:04:52.895942', 1, 4);

admin.py:

from django.contrib import admin

# Register your models here.

from .models import *
admin.site.register(Course)
admin.site.register(CourseSection)
admin.site.register(CourseChapter)
admin.site.register(CourseCategory)
admin.site.register(Teacher)

课程分类接口

1.路由

# http://127.0.0.1:8000/api/v1/course/category/
router.register('category',views.CourseCategoryView,'category')

2 序列化类

from .models import CourseCategory
from rest_framework import serializers
from .models import CourseCategory


class CourseCategorySerializer(serializers.ModelSerializer):
    class Meta:
        model = CourseCategory
        fields = ['id', 'name']

3.视图类

from .models import CourseCategory
from .serializer import CourseCategorySerializer
from utils.common_response import APIResponse
from utils.common_view import CommonListModelMixin


# 没有缓存的查询所有
class CourseCategoryView(GenericViewSet, CommonListModelMixin):
    queryset = CourseCategory.objects.filter(is_delete=False, is_show=True).order_by('orders')
    serializer_class = CourseCategorySerializer

4.公共类

from utils.common_response import APIResponse
from django.core.cache import cache
from .common_response import APIResponse

# 带缓存的查询所有
class CacheListModelMixin(ListModelMixin):
    cache_key = None

    def list(self, request, *args, **kwargs):
        data = cache.get(self.cache_key)
        if data:
            return APIResponse(data=data)
        # 走数据库
        res = super(CacheListModelMixin, self).list(self, request, *args, **kwargs)
        cache.set(self.cache_key,res.data)
        return APIResponse(data=res.data)

class CommonListModelMixin(ListModelMixin):
    def list(self, request, *args, **kwargs):
        res = super().list(self, request, *args, **kwargs)
        return APIResponse(data=res.data)

所有课程接口

# 可以按课程分类过滤
# 排序：学习人数和价格排序
# 查询所有课程
	-老师的数据
    -章节和课时：如果课时数大于4，就返回4条，如果小于4，有多少就返回多少

1 表模型(重要代码)

# 写三个方法分别返回的中文
    def course_type_name(self):
        return self.get_course_type_display()

    def level_name(self):
        return self.get_level_display()

    def status_name(self):
        return self.get_status_display()

    def section_list(self):
        '''
        # 逻辑：
        #1 先根据课程，拿到所有章节
        #2 循环所有章节，拿出每个章节下的课时
        #3 拼到一个列表中
        # 4 判断一下列表长度是否大于等于四，直接 return
        '''
        # 反向查询，拿到所有章节   表名小写_set.all()  这个拿不到
        # course_chapter_list=self.coursechapter_set.all()
        l = []
        course_chapter_list=self.coursechapters.all()
        for course_chapter in course_chapter_list:
            # 根据章节拿出课时
            course_section_list=course_chapter.coursesections.all()
            for course_section in course_section_list:
                l.append({
                    'name': course_section.name,
                    'section_link': course_section.section_link,
                    'duration': course_section.duration,
                    'free_trail': course_section.free_trail,
                })
                if len(l) >=4:
                    return l
        return l

知识点补充：
1.related_nme:基于对象的反向查询用来替换-->表名小写_set
2.related_query_nme:基于连表的反向查询用来替换-->表名小写

2.序列化类

# 老师表序列化
class TeacherSerializer(serializers.ModelSerializer):
    class Meta:
        model = Teacher
        fields = ['id', 'name', 'role', 'title', 'signature', 'image', 'brief']

class CourseSerializer(serializers.ModelSerializer):
    teacher = TeacherSerializer()  # 子序列化
    class Meta:
        model = Course
        fields = [
            'id',
            'name',
            'course_img',
            'brief',  # 课程介绍
            'attachment_path',  # 课程课件路径
            'pub_sections',  # 更新了多少课时
            'price',  # 价格
            'students',  # 学习人数
            'period',  # 建议学习周期
            'sections',  # 总课时数量

            'course_type_name',  # 定制返回格式，在序列化类中或表模型中写方法    表模型中写的方法
            'level_name',  # 等级名字
            'status_name',  # 课程状态

            'teacher',  # 老师 ： 表模型中写    序列化类中   子序列化：给Teacher表写个序列化类
            'section_list',  # 表模型中写  （DDD:领域驱动模型）
        ]

所有课程接口(过滤，排序)

1.分页

http://127.0.0.1:8000/api/v1/course/course/?page=2


from rest_framework.pagination import PageNumberPagination

class CommonPageNumberPagination(PageNumberPagination):
    page_size = 2         # 每页显示的条数
    page_query_param = 'page'    # 查询条件  page=3
    page_size_query_param = 'size'   # page=3&size=5
    max_page_size = 5     # 最大显示条数

# 分页
from utils.common_page import CommonPageNumberPagination as PageNumberPagination
    pagination_class = PageNumberPagination

2.排序

http://127.0.0.1:8000/api/v1/course/course/?ordering=price
http://127.0.0.1:8000/api/v1/course/course/?ordering=students
    # 排序
    filter_backends = [OrderingFilter,DjangoFilterBackend]
    ordering_fields=['price','students']

3.过滤

http://127.0.0.1:8000/api/v1/course/course/?course_category=2
from django_filters.rest_framework import DjangoFilterBackend
# 过滤  根据分类过滤，使用第三方的django-filter
# http://127.0.0.1:8000/api/v1/course/course/?ordering=students&course_category=2
    filterset_fields = ['course_category']  # 按课程分类过滤

课程详情接口（没有章节和课时的内容）

http://127.0.0.1:8000/api/v1/course/course/2/
class CourseView(GenericViewSet, CommonListModelMixin, RetrieveModelMixin):
	...
    def retrieve(self, request, *args, **kwargs):
        res = super().retrieve(request, *args, **kwargs)
        return APIResponse(data=res.data)

所有章节接口(按课程过滤)

1 视图类

class CourseChapterView(GenericViewSet, CommonListModelMixin):
    queryset = CourseChapter.objects.filter(is_delete=False, is_show=True).order_by('orders')
    serializer_class = CourseChapterSerializer
    filter_backends = [DjangoFilterBackend]
    filterset_fields = ['course']  # 按课程课程过滤

2 序列化类

# 课时的序列化类
class CourseSectionSerializer(serializers.ModelSerializer):
    class Meta:
        model = CourseSection
        # 课时名字， 课时排序  课时视频连接，视频时长  是否免费
        fields = ('id', 'name', 'orders', 'section_link', 'duration', 'free_trail')


# 章节序列化类
class CourseChapterSerializer(serializers.ModelSerializer):
    # 子序列化  多条
    coursesections = CourseSectionSerializer(many=True)

    class Meta:
        model = CourseChapter
        # 章节名字  第几章  章节介绍     coursesections：章节下所有课时，子序列化
        fields = ('id', 'name', 'chapter', 'summary', 'coursesections')

3 路由

# 访问 http://127.0.0.1:8000/api/v1/course/coursechapter/   ---->get 请求就可以查询所有章节，带过滤，查到某个课程的所有章节
router.register('coursechapter', views.CourseChapterView, 'coursechapter')

课程列表前端

前端代码

# 后端记得放图片的文件夹

课程详情前端


# 视频播放器组件
	1 安装
        cnpm install vue-core-video-player -S

    2 在main.js配置
    	import VueCoreVideoPlayer from 'vue-core-video-player'
        Vue.use(VueCoreVideoPlayer, {
          lang: 'zh-CN'
        })
        
    3 在使用的组件中，使用即可
    	<vue-core-video-player
              src="https://video.pearvideo.com/mp4/third/20230307/cont-1779481-10023871-222053-hd.mp4"
              @play="onPlayerPlay"
              @pause="onPlayerPause"
              title="课程名字"
              controls='auto'
          >
          </vue-core-video-player>           
      onPlayerPlay() {
      // 当视频播放时，执行的方法
      console.log('视频开始播放')
    },
    onPlayerPause() {
      // 当视频暂停播放时，执行的方法
      console.log('视频暂停，可以打开广告了')
    },   
    4 更详细：https://www.cnblogs.com/liuqingzheng/p/16204851.html
  
# 根据课程详情页面分析接口
	1 课程详情接口，根据id查
    2 课程章节接口  （单独写的课程章节接口，但它是可以放在课程详情接口中的）
    3 查询老师接口(不需要，课程详情接口中有老师所有信息了)

<template>
  <div class="detail">
    <Header/>
    <div class="main">
      <div class="course-info">
        <div class="wrap-left">
          <vue-core-video-player
              src="https://video.pearvideo.com/mp4/adshort/20210922/cont-1742256-15771946_adpkg-ad_hd.mp4"
              @play="onPlayerPlay"
              @pause="onPlayerPause"
              title="课程名字"
              controls='auto'
          >
          </vue-core-video-player>
        </div>
        <div class="wrap-right">
          <h3 class="course-name">{{ course_info.name }}</h3>
          <p class="data">
            {{ course_info.students }}人在学&nbsp;&nbsp;&nbsp;&nbsp;课程总时长：{{
              course_info.sections
            }}课时/{{ course_info.pub_sections }}小时&nbsp;&nbsp;&nbsp;&nbsp;难度：{{ course_info.level_name }}</p>
          <div class="sale-time">
            <p class="sale-type">价格 <span class="original_price">¥{{ course_info.price }}</span></p>
            <p class="expire"></p>
          </div>
          <div class="buy">
            <div class="buy-btn">
              <button class="buy-now">立即购买</button>
              <button class="free">免费试学</button>
            </div>
            <!--<div class="add-cart" @click="add_cart(course_info.id)">-->
            <!--<img src="@/assets/img/cart-yellow.svg" alt="">加入购物车-->
            <!--</div>-->
          </div>
        </div>
      </div>
      <div class="course-tab">
        <ul class="tab-list">
          <li :class="tabIndex==1?'active':''" @click="tabIndex=1">详情介绍</li>
          <li :class="tabIndex==2?'active':''" @click="tabIndex=2">课程章节 <span :class="tabIndex!=2?'free':''">(试学)</span>
          </li>
          <li :class="tabIndex==3?'active':''" @click="tabIndex=3">用户评论</li>
          <li :class="tabIndex==4?'active':''" @click="tabIndex=4">常见问题</li>
        </ul>
      </div>
      <div class="course-content">
        <div class="course-tab-list">
          <div class="tab-item" v-if="tabIndex==1">
            <div class="course-brief" v-html="course_info.brief_text"></div>
          </div>
          <div class="tab-item" v-if="tabIndex==2">
            <div class="tab-item-title">
              <p class="chapter">课程章节</p>
              <p class="chapter-length">共{{ course_chapters.length }}章 {{ course_info.sections }}个课时</p>
            </div>
            <div class="chapter-item" v-for="chapter in course_chapters" :key="chapter.name">
              <p class="chapter-title"><img src="@/assets/img/enum.svg"
                                            alt="">第{{ chapter.chapter }}章·{{ chapter.name }}
              </p>
              <ul class="section-list">
                <li class="section-item" v-for="section in chapter.coursesections" :key="section.name">
                  <p class="name"><span class="index">{{ chapter.chapter }}-{{ section.orders }}</span>
                    {{ section.name }}<span class="free" v-if="section.free_trail">免费</span></p>
                  <p class="time">{{ section.duration }} <img src="@/assets/img/chapter-player.svg"></p>
                  <button class="try" v-if="section.free_trail">立即试学</button>
                  <button class="try" v-else>立即购买</button>
                </li>
              </ul>
            </div>
          </div>
          <div class="tab-item" v-if="tabIndex==3">
            用户评论
          </div>
          <div class="tab-item" v-if="tabIndex==4">
            常见问题
          </div>
        </div>
        <div class="course-side">
          <div class="teacher-info">
            <h4 class="side-title"><span>授课老师</span></h4>
            <div class="teacher-content">
              <div class="cont1">
                <img :src="course_info.teacher.image">
                <div class="name">
                  <p class="teacher-name">{{ course_info.teacher.name }}
                    {{ course_info.teacher.title }}</p>
                  <p class="teacher-title">{{ course_info.teacher.signature }}</p>
                </div>
              </div>
              <p class="narrative">{{ course_info.teacher.brief }}</p>
            </div>
          </div>
        </div>
      </div>
    </div>
    <Footer/>
  </div>
</template>

<script>
import Header from "@/components/Header"
import Footer from "@/components/Footer"


export default {
  name: "Detail",
  data() {
    return {
      tabIndex: 2,   // 当前选项卡显示的下标
      course_id: 0, // 当前课程信息的ID
      course_info: {
        teacher: {},
      }, // 课程信息
      course_chapters: [], // 课程的章节课时列表
    }
  },
  created() {
    this.get_course_id();
    this.get_course_data();
    this.get_chapter();
  },
  methods: {
    onPlayerPlay() {
      // 当视频播放时，执行的方法
      console.log('视频开始播放')
    },
    onPlayerPause() {
      // 当视频暂停播放时，执行的方法
      console.log('视频暂停，可以打开广告了')
    },
    get_course_id() {
      // 获取地址栏上面的课程ID
      this.course_id = this.$route.params.id
      if (this.course_id < 1) {
        let _this = this;
        _this.$alert("对不起，当前视频不存在！", "警告", {
          callback() {
            _this.$router.go(-1);
          }
        });
      }
    },
    get_course_data() {
      // ajax请求课程信息
      this.$axios.get(`${this.$settings.BASE_URL}/course/course/${this.course_id}/`).then(response => {
        // window.console.log(response.data);
        this.course_info = response.data.data;
        console.log(this.course_info)
      }).catch(() => {
        this.$message({
          message: "对不起，访问页面出错！请联系客服工作人员！"
        });
      })
    },

    get_chapter() {
      // 获取当前课程对应的章节课时信息
      // http://127.0.0.1:8000/course/chapters/?course=(pk)
      this.$axios.get(`${this.$settings.BASE_URL}/course/coursechapter/`, {
        params: {
          "course": this.course_id,
        }
      }).then(response => {
        this.course_chapters = response.data.data;
      }).catch(error => {
        window.console.log(error.response);
      })
    },
  },
  components: {
    Header,
    Footer,
  }
}
</script>

<style scoped>
.main {
  background: #fff;
  padding-top: 30px;
}

.course-info {
  width: 1200px;
  margin: 0 auto;
  overflow: hidden;
}

.wrap-left {
  float: left;
  width: 690px;
  height: 388px;
  background-color: #000;
}

.wrap-right {
  float: left;
  position: relative;
  height: 388px;
}

.course-name {
  font-size: 20px;
  color: #333;
  padding: 10px 23px;
  letter-spacing: .45px;
}

.data {
  padding-left: 23px;
  padding-right: 23px;
  padding-bottom: 16px;
  font-size: 14px;
  color: #9b9b9b;
}

.sale-time {
  width: 464px;
  background: #fa6240;
  font-size: 14px;
  color: #4a4a4a;
  padding: 10px 23px;
  overflow: hidden;
}

.sale-type {
  font-size: 16px;
  color: #fff;
  letter-spacing: .36px;
  float: left;
}

.sale-time .expire {
  font-size: 14px;
  color: #fff;
  float: right;
}

.sale-time .expire .second {
  width: 24px;
  display: inline-block;
  background: #fafafa;
  color: #5e5e5e;
  padding: 6px 0;
  text-align: center;
}

.course-price {
  background: #fff;
  font-size: 14px;
  color: #4a4a4a;
  padding: 5px 23px;
}

.discount {
  font-size: 26px;
  color: #fa6240;
  margin-left: 10px;
  display: inline-block;
  margin-bottom: -5px;
}

.original {
  font-size: 14px;
  color: #9b9b9b;
  margin-left: 10px;
  text-decoration: line-through;
}

.buy {
  width: 464px;
  padding: 0px 23px;
  position: absolute;
  left: 0;
  bottom: 20px;
  overflow: hidden;
}

.buy .buy-btn {
  float: left;
}

.buy .buy-now {
  width: 125px;
  height: 40px;
  border: 0;
  background: #ffc210;
  border-radius: 4px;
  color: #fff;
  cursor: pointer;
  margin-right: 15px;
  outline: none;
}

.buy .free {
  width: 125px;
  height: 40px;
  border-radius: 4px;
  cursor: pointer;
  margin-right: 15px;
  background: #fff;
  color: #ffc210;
  border: 1px solid #ffc210;
}

.add-cart {
  float: right;
  font-size: 14px;
  color: #ffc210;
  text-align: center;
  cursor: pointer;
  margin-top: 10px;
}

.add-cart img {
  width: 20px;
  height: 18px;
  margin-right: 7px;
  vertical-align: middle;
}

.course-tab {
  width: 100%;
  background: #fff;
  margin-bottom: 30px;
  box-shadow: 0 2px 4px 0 #f0f0f0;

}

.course-tab .tab-list {
  width: 1200px;
  margin: auto;
  color: #4a4a4a;
  overflow: hidden;
}

.tab-list li {
  float: left;
  margin-right: 15px;
  padding: 26px 20px 16px;
  font-size: 17px;
  cursor: pointer;
}

.tab-list .active {
  color: #ffc210;
  border-bottom: 2px solid #ffc210;
}

.tab-list .free {
  color: #fb7c55;
}

.course-content {
  width: 1200px;
  margin: 0 auto;
  background: #FAFAFA;
  overflow: hidden;
  padding-bottom: 40px;
}

.course-tab-list {
  width: 880px;
  height: auto;
  padding: 20px;
  background: #fff;
  float: left;
  box-sizing: border-box;
  overflow: hidden;
  position: relative;
  box-shadow: 0 2px 4px 0 #f0f0f0;
}

.tab-item {
  width: 880px;
  background: #fff;
  padding-bottom: 20px;
  box-shadow: 0 2px 4px 0 #f0f0f0;
}

.tab-item-title {
  justify-content: space-between;
  padding: 25px 20px 11px;
  border-radius: 4px;
  margin-bottom: 20px;
  border-bottom: 1px solid #333;
  border-bottom-color: rgba(51, 51, 51, .05);
  overflow: hidden;
}

.chapter {
  font-size: 17px;
  color: #4a4a4a;
  float: left;
}

.chapter-length {
  float: right;
  font-size: 14px;
  color: #9b9b9b;
  letter-spacing: .19px;
}

.chapter-title {
  font-size: 16px;
  color: #4a4a4a;
  letter-spacing: .26px;
  padding: 12px;
  background: #eee;
  border-radius: 2px;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-align: center;
  align-items: center;
}

.chapter-title img {
  width: 18px;
  height: 18px;
  margin-right: 7px;
  vertical-align: middle;
}

.section-list {
  padding: 0 20px;
}

.section-list .section-item {
  padding: 15px 20px 15px 36px;
  cursor: pointer;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}

.section-item .name {
  font-size: 14px;
  color: #666;
  float: left;
}

.section-item .index {
  margin-right: 5px;
}

.section-item .free {
  font-size: 12px;
  color: #fff;
  letter-spacing: .19px;
  background: #ffc210;
  border-radius: 100px;
  padding: 1px 9px;
  margin-left: 10px;
}

.section-item .time {
  font-size: 14px;
  color: #666;
  letter-spacing: .23px;
  opacity: 1;
  transition: all .15s ease-in-out;
  float: right;
}

.section-item .time img {
  width: 18px;
  height: 18px;
  margin-left: 15px;
  vertical-align: text-bottom;
}

.section-item .try {
  width: 86px;
  height: 28px;
  background: #ffc210;
  border-radius: 4px;
  font-size: 14px;
  color: #fff;
  position: absolute;
  right: 20px;
  top: 10px;
  opacity: 0;
  transition: all .2s ease-in-out;
  cursor: pointer;
  outline: none;
  border: none;
}

.section-item:hover {
  background: #fcf7ef;
  box-shadow: 0 0 0 0 #f3f3f3;
}

.section-item:hover .name {
  color: #333;
}

.section-item:hover .try {
  opacity: 1;
}

.course-side {
  width: 300px;
  height: auto;
  margin-left: 20px;
  float: right;
}

.teacher-info {
  background: #fff;
  margin-bottom: 20px;
  box-shadow: 0 2px 4px 0 #f0f0f0;
}

.side-title {
  font-weight: normal;
  font-size: 17px;
  color: #4a4a4a;
  padding: 18px 14px;
  border-bottom: 1px solid #333;
  border-bottom-color: rgba(51, 51, 51, .05);
}

.side-title span {
  display: inline-block;
  border-left: 2px solid #ffc210;
  padding-left: 12px;
}

.teacher-content {
  padding: 30px 20px;
  box-sizing: border-box;
}

.teacher-content .cont1 {
  margin-bottom: 12px;
  overflow: hidden;
}

.teacher-content .cont1 img {
  width: 54px;
  height: 54px;
  margin-right: 12px;
  float: left;
}

.teacher-content .cont1 .name {
  float: right;
}

.teacher-content .cont1 .teacher-name {
  width: 188px;
  font-size: 16px;
  color: #4a4a4a;
  padding-bottom: 4px;
}

.teacher-content .cont1 .teacher-title {
  width: 188px;
  font-size: 13px;
  color: #9b9b9b;
  white-space: nowrap;
}

.teacher-content .narrative {
  font-size: 14px;
  color: #666;
  line-height: 24px;
}
</style>

标签：章节,07,verbose,name,接口,course,课程,2022,14
From： https://www.cnblogs.com/zx0524/p/17207075.html

课程表数据录入，课程分类接口，所有课程接口(过滤，排序)，课程详情接口（没有章节和课时的内容），所有章节接口(按课程过滤)，课程列表前端，课程详情前端

课程表数据录入，课程分类接口，所有课程接口(过滤，排序)，课程详情接口（没有章节和课时的内容），所有章节接口(按课程过滤)，课程列表前端，课程详情前端

课程表数据录入

课时表

老师表

课程分类接口

1.路由

2 序列化类

3.视图类

4.公共类

所有课程接口

1 表模型(重要代码)

2.序列化类

所有课程接口(过滤，排序)

1.分页

2.排序

3.过滤

课程详情接口（没有章节和课时的内容）

所有章节接口(按课程过滤)

1 视图类

2 序列化类

3 路由

课程列表前端

课程详情前端

相关文章

赞助商

阅读排行

课程表数据录入，课程分类接口， 所有课程接口(过滤，排序)， 课程详情接口（没有章节和课时的内容），所有章节接口(按课程过滤)，课程列表前端，课程详情前端

课程表数据录入，课程分类接口， 所有课程接口(过滤，排序)， 课程详情接口（没有章节和课时的内容），所有章节接口(按课程过滤)，课程列表前端，课程详情前端

课程表数据录入

课时表

老师表

课程分类接口

1.路由

2 序列化类

3.视图类

4.公共类

所有课程接口

1 表模型(重要代码)

2.序列化类

所有课程接口(过滤，排序)

1.分页

2.排序

3.过滤

课程详情接口（没有章节和课时的内容）

所有章节接口(按课程过滤)

1 视图类

2 序列化类

3 路由

课程列表前端

课程详情前端

相关文章

赞助商

阅读排行

课程表数据录入，课程分类接口，所有课程接口(过滤，排序)，课程详情接口（没有章节和课时的内容），所有章节接口(按课程过滤)，课程列表前端，课程详情前端

课程表数据录入，课程分类接口，所有课程接口(过滤，排序)，课程详情接口（没有章节和课时的内容），所有章节接口(按课程过滤)，课程列表前端，课程详情前端