首页 > 其他分享 >luffy 查询所有课程接口、课程详情接口、课程详情后台之所有章节接口

luffy 查询所有课程接口、课程详情接口、课程详情后台之所有章节接口

时间:2023-07-07 15:26:53浏览次数:39  
标签:name color 接口 course 课程 详情 margin size

目录

1 查询所有课程接口

# 查询所有课程接口
	-带过滤:按分类过滤
    -带排序:价格,学习人数
    -带分页:简单分页

1.1 视图类

class CourseView(GenericViewSet, ListModelMixin):
    queryset = Course.objects.filter(is_delete=False, is_show=True).order_by('orders')
    serializer_class = CourseSerializer
    pagination_class = CommonPagination
    # 排序,过滤课程分类(course_category=2)
    filter_backends = [OrderingFilter, DjangoFilterBackend]
    ordering_fields = ['students', 'price']
    filterset_fields = ['course_category']

1.2 序列化类

class TeacherSerializer(serializers.ModelSerializer):
    class Meta:
        model = Teacher
        fields = ['id', 'name', 'role_name', 'title', 'signature', 'image', 'brief']


# 只用来做序列化
class CourseSerializer(serializers.ModelSerializer):
    teacher = TeacherSerializer() # 子序列化

    class Meta:
        model = Course
        fields = [
            'id',
            'name',
            'course_img',
            'brief',
            'attachment_path',  # 课件地址
            'pub_sections',  # 发布了多少课时
            'sections',  # 总共有多少
            'price',
            'students',
            'period',  # 建议学习周期

            'course_type_name',  # 课程类型 中文
            'level_name',  # 课程难度等级中文
            'status_name',  # 课程状态中文

            'teacher',  # 重写 返回老师的详情
            'section_list',  # 重写的字段,拿最多四个课时,超过4个就拿4个,不足4个,有几个拿几个
        ]

1.3 表模型

class Course(BaseModel):
    """课程"""
    course_type = (
        (0, '付费'),
        (1, 'VIP专享'),
    )
    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)  # 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)

    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

    def course_type_name(self):
        return self.get_course_type_display()  # 拿到course_type对应的中文

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

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

    def section_list(self):
        l = []
        # 超过4个就拿4个,不足4个,有几个拿几个
        # 根据课程,获取所有章节

        course_chapter_list = self.coursechapters.all()  # 咱们写了related_name,直接按字段名
        # 循环所有章节,拿出所有课时,追加到l中
        for course_chapter in course_chapter_list:
            chapter_section_list = course_chapter.coursesections.all()
            for chapter_section in chapter_section_list:
                l.append({'id': chapter_section.pk,
                          'name': chapter_section.name,
                          'section_link': chapter_section.section_link,
                          'duration': chapter_section.duration,
                          'free_trail': chapter_section.free_trail,
                          })
                # 当l长度大于等于4,就直接返回
                if len(l) >= 4:
                    return l

        return l

2 课程详情接口

# 课间,增加了些数据


# 多种写法
	-方式一:直接在原来查询所有的视图类上加入继承:RetrieveModelMixin
    	-继续使用查询所有的序列化类(没有章节及课时)
        -配合一个通过课程id,查询所有课程章节及课时的接口
        
     -方式二:直接在原来查询所有的视图类上加入继承:RetrieveModelMixin
    	-重写序列化类:返回课程详情,返回课程章节及课时
        
        
# 我们采用方式一:只要在CourseView加继承RetrieveModelMixin类即可,就有查询单条的接口了
class CourseView(GenericViewSet, ListModelMixin,RetrieveModelMixin):

3 课程详情后台之所有章节接口

# 该接口是为了配合 :课程详情页面写
# 写的接口是查询所有章节及课时
	-需要安装课程id过滤
# 写查询所有章节接口(带过滤)

3.1 视图类


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

3.2 序列化类

class CourseSectionSerializer(serializers.ModelSerializer):
    class Meta:
        model = CourseSection
        fields = ['id', 'name', 'section_type_name',
                  'section_link',
                  'duration',
                  'free_trail',]



class CourseChapterSerializer(serializers.ModelSerializer):
    '''
        拿出章节下所有课时,方案有三种
         -表模型中写
         -序列化类中写
         -方式三子序列化
    coursesections = CourseSectionSerializer(many=True)  # 章节下的课时,是多条,使用子序列化,instance不用传,但是many=True必须传

    class Meta:
        model = CourseChapter
        fields = ['id', 'name', 'chapter', 'summary', 'coursesections']

4 所有课程前台,课程详情前台

# 0 查询所有课程分类接口
# 1 查询所有课程(过滤,排序,分页)
# 2 查询课程详情
# 3 查询所有章节及其下的课时,带按课程id过滤功能
	-配合查询课程详情页面使用的

4.1 课程列表页

<template>
  <div class="course">
    <Header></Header>
    <div class="main">
      <!-- 筛选条件 -->
      <div class="condition">
        <ul class="cate-list">
          <li class="title">课程分类:</li>
          <li :class="filter.course_category==0?'this':''" @click="filter.course_category=0">全部</li>
          <li :class="filter.course_category==category.id?'this':''" v-for="category in category_list"
              @click="filter.course_category=category.id" :key="category.name">{{ category.name }}
          </li>
        </ul>

        <div class="ordering">
          <ul>
            <li class="title">筛&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;选:</li>
            <li class="default" :class="(filter.ordering=='id' || filter.ordering=='-id')?'this':''"
                @click="filter.ordering='-id'">默认
            </li>
            <li class="hot" :class="(filter.ordering=='students' || filter.ordering=='-students')?'this':''"
                @click="filter.ordering=(filter.ordering=='-students'?'students':'-students')">人气
            </li>
            <li class="price"
                :class="filter.ordering=='price'?'price_up this':(filter.ordering=='-price'?'price_down this':'')"
                @click="filter.ordering=(filter.ordering=='-price'?'price':'-price')">价格
            </li>
          </ul>
          <p class="condition-result">共{{ course_total }}个课程</p>
        </div>

      </div>
      <!-- 课程列表 -->
      <div class="course-list">
        <div class="course-item" v-for="course in course_list" :key="course.name">
          <div class="course-image">
            <img :src="course.course_img" alt="">
          </div>
          <div class="course-info">
            <h3>
              <router-link :to="'/free/detail/'+course.id">{{ course.name }}</router-link>
              <span><img src="@/assets/img/avatar1.svg" alt="">{{ course.students }}人已加入学习</span></h3>
            <p class="teather-info">
              {{ course.teacher.name }} {{ course.teacher.title }} {{ course.teacher.signature }}
              <span v-if="course.sections>course.pub_sections">共{{ course.sections }}课时/已更新{{ course.pub_sections }}课时</span>
              <span v-else>共{{ course.sections }}课时/更新完成</span>
            </p>
            <ul class="section-list">
              <li v-for="(section, key) in course.section_list" :key="section.name"><span
                  class="section-title">0{{ key + 1 }}  |  {{ section.name }}</span>
                <span class="free" v-if="section.free_trail">免费</span></li>
            </ul>
            <div class="pay-box">
              <div v-if="course.discount_type">
                <span class="discount-type">{{ course.discount_type }}</span>
                <span class="discount-price">¥{{ course.real_price }}元</span>
                <span class="original-price">原价:{{ course.price }}元</span>
              </div>
              <span v-else class="discount-price">¥{{ course.price }}元</span>
              <span class="buy-now">立即购买</span>
            </div>
          </div>
        </div>
      </div>
      <div class="course_pagination block">
        <el-pagination
            @size-change="handleSizeChange"
            @current-change="handleCurrentChange"
            :current-page.sync="filter.page"
            :page-sizes="[3, 5]"
            :page-size="filter.page_size"
            layout="sizes, prev, pager, next"
            :total="course_total">
        </el-pagination>
      </div>
    </div>
    <Footer></Footer>
  </div>
</template>

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

export default {
  name: "Course",
  data() {
    return {
      category_list: [], // 课程分类列表
      course_list: [],   // 课程列表
      course_total: 0,   // 当前课程的总数量
      filter: {
        course_category: 0, // 当前用户选择的课程分类,刚进入页面默认为全部,值为0
        ordering: "-id",    // 数据的排序方式,默认值是-id,表示对于id进行降序排列
        page_size: 3,       // 单页数据量
        page: 1,
      }
    }
  },
  created() {
    this.get_category();
    this.get_course();
  },
  components: {
    Header,
    Footer,
  },
  watch: {
    "filter.course_category": function () {
      this.filter.page = 1;
      this.get_course();
    },
    "filter.ordering": function () {
      this.get_course();
    },
    "filter.page_size": function () {
      this.get_course();
    },
    "filter.page": function () {
      this.get_course();
    }
  },
  methods: {

    handleSizeChange(val) {
      // 每页数据量发生变化时执行的方法
      this.filter.page = 1;
      this.filter.page_size = val;
    },
    handleCurrentChange(val) {
      // 页码发生变化时执行的方法
      this.filter.page = val;
    },
    get_category() {
      // 获取课程分类信息
      this.$axios.get(`${this.$settings.BASE_URL}course/category/`).then(response => {
        if (response.data.code == 100) {
          this.category_list = response.data.data;
          console.log(this.category_list)
        }

      }).catch(() => {
        this.$message({
          message: "获取课程分类信息有误,请联系客服工作人员",
        })
      })
    },
    get_course() {
      // 排序
      let filters = {
        ordering: this.filter.ordering, // 排序
      };
      // 判决是否进行分类课程的展示
      if (this.filter.course_category > 0) {
        filters.course_category = this.filter.course_category;
      }

      // 设置单页数据量
      if (this.filter.page_size > 0) {
        filters.page_size = this.filter.page_size;
      } else {
        filters.page_size = 5;
      }

      // 设置当前页码
      if (this.filter.page > 1) {
        filters.page = this.filter.page;
      } else {
        filters.page = 1;
      }


      // 获取课程列表信息
      this.$axios.get(`${this.$settings.BASE_URL}course/course/`, {
        params: filters
      }).then(response => {
        if (response.data.code == 100) {
          this.course_list = response.data.data.results;
          this.course_total = response.data.data.count;
        }

      }).catch(() => {
        this.$message({
          message: "获取课程信息有误,请联系客服工作人员"
        })
      })
    }
  }
}
</script>

<style scoped>
.course {
  background: #f6f6f6;
}

.course .main {
  width: 1100px;
  margin: 35px auto 0;
}

.course .condition {
  margin-bottom: 35px;
  padding: 25px 30px 25px 20px;
  background: #fff;
  border-radius: 4px;
  box-shadow: 0 2px 4px 0 #f0f0f0;
}

.course .cate-list {
  border-bottom: 1px solid #333;
  border-bottom-color: rgba(51, 51, 51, .05);
  padding-bottom: 18px;
  margin-bottom: 17px;
}

.course .cate-list::after {
  content: "";
  display: block;
  clear: both;
}

.course .cate-list li {
  float: left;
  font-size: 16px;
  padding: 6px 15px;
  line-height: 16px;
  margin-left: 14px;
  position: relative;
  transition: all .3s ease;
  cursor: pointer;
  color: #4a4a4a;
  border: 1px solid transparent; /* transparent 透明 */
}

.course .cate-list .title {
  color: #888;
  margin-left: 0;
  letter-spacing: .36px;
  padding: 0;
  line-height: 28px;
}

.course .cate-list .this {
  color: #ffc210;
  border: 1px solid #ffc210 !important;
  border-radius: 30px;
}

.course .ordering::after {
  content: "";
  display: block;
  clear: both;
}

.course .ordering ul {
  float: left;
}

.course .ordering ul::after {
  content: "";
  display: block;
  clear: both;
}

.course .ordering .condition-result {
  float: right;
  font-size: 14px;
  color: #9b9b9b;
  line-height: 28px;
}

.course .ordering ul li {
  float: left;
  padding: 6px 15px;
  line-height: 16px;
  margin-left: 14px;
  position: relative;
  transition: all .3s ease;
  cursor: pointer;
  color: #4a4a4a;
}

.course .ordering .title {
  font-size: 16px;
  color: #888;
  letter-spacing: .36px;
  margin-left: 0;
  padding: 0;
  line-height: 28px;
}

.course .ordering .this {
  color: #ffc210;
}

.course .ordering .price {
  position: relative;
}

.course .ordering .price::before,
.course .ordering .price::after {
  cursor: pointer;
  content: "";
  display: block;
  width: 0px;
  height: 0px;
  border: 5px solid transparent;
  position: absolute;
  right: 0;
}

.course .ordering .price::before {
  border-bottom: 5px solid #aaa;
  margin-bottom: 2px;
  top: 2px;
}

.course .ordering .price::after {
  border-top: 5px solid #aaa;
  bottom: 2px;
}

.course .ordering .price_up::before {
  border-bottom-color: #ffc210;
}

.course .ordering .price_down::after {
  border-top-color: #ffc210;
}

.course .course-item:hover {
  box-shadow: 4px 6px 16px rgba(0, 0, 0, .5);
}

.course .course-item {
  width: 1100px;
  background: #fff;
  padding: 20px 30px 20px 20px;
  margin-bottom: 35px;
  border-radius: 2px;
  cursor: pointer;
  box-shadow: 2px 3px 16px rgba(0, 0, 0, .1);
  /* css3.0 过渡动画 hover 事件操作 */
  transition: all .2s ease;
}

.course .course-item::after {
  content: "";
  display: block;
  clear: both;
}

/* 顶级元素 父级元素  当前元素{} */
.course .course-item .course-image {
  float: left;
  width: 423px;
  height: 210px;
  margin-right: 30px;
}

.course .course-item .course-image img {
  max-width: 100%;
  max-height: 210px;
}

.course .course-item .course-info {
  float: left;
  width: 596px;
}

.course-item .course-info h3 a {
  font-size: 26px;
  color: #333;
  font-weight: normal;
  margin-bottom: 8px;
}

.course-item .course-info h3 span {
  font-size: 14px;
  color: #9b9b9b;
  float: right;
  margin-top: 14px;
}

.course-item .course-info h3 span img {
  width: 11px;
  height: auto;
  margin-right: 7px;
}

.course-item .course-info .teather-info {
  font-size: 14px;
  color: #9b9b9b;
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid #333;
  border-bottom-color: rgba(51, 51, 51, .05);
}

.course-item .course-info .teather-info span {
  float: right;
}

.course-item .section-list::after {
  content: "";
  display: block;
  clear: both;
}

.course-item .section-list li {
  float: left;
  width: 44%;
  font-size: 14px;
  color: #666;
  padding-left: 22px;
  /* background: url("路径") 是否平铺 x轴位置 y轴位置 */
  background: url("/src/assets/img/play-icon-gray.svg") no-repeat left 4px;
  margin-bottom: 15px;
}

.course-item .section-list li .section-title {
  /* 以下3句,文本内容过多,会自动隐藏,并显示省略符号 */
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
  display: inline-block;
  max-width: 200px;
}

.course-item .section-list li:hover {
  background-image: url("/src/assets/img/play-icon-yellow.svg");
  color: #ffc210;
}

.course-item .section-list li .free {
  width: 34px;
  height: 20px;
  color: #fd7b4d;
  vertical-align: super;
  margin-left: 10px;
  border: 1px solid #fd7b4d;
  border-radius: 2px;
  text-align: center;
  font-size: 13px;
  white-space: nowrap;
}

.course-item .section-list li:hover .free {
  color: #ffc210;
  border-color: #ffc210;
}

.course-item {
  position: relative;
}

.course-item .pay-box {
  position: absolute;
  bottom: 20px;
  width: 600px;
}

.course-item .pay-box::after {
  content: "";
  display: block;
  clear: both;
}

.course-item .pay-box .discount-type {
  padding: 6px 10px;
  font-size: 16px;
  color: #fff;
  text-align: center;
  margin-right: 8px;
  background: #fa6240;
  border: 1px solid #fa6240;
  border-radius: 10px 0 10px 0;
  float: left;
}

.course-item .pay-box .discount-price {
  font-size: 24px;
  color: #fa6240;
  float: left;
}

.course-item .pay-box .original-price {
  text-decoration: line-through;
  font-size: 14px;
  color: #9b9b9b;
  margin-left: 10px;
  float: left;
  margin-top: 10px;
}

.course-item .pay-box .buy-now {
  width: 120px;
  height: 38px;
  background: transparent;
  color: #fa6240;
  font-size: 16px;
  border: 1px solid #fd7b4d;
  border-radius: 3px;
  transition: all .2s ease-in-out;
  float: right;
  text-align: center;
  line-height: 38px;
  position: absolute;
  right: 0;
  bottom: 5px;
}

.course-item .pay-box .buy-now:hover {
  color: #fff;
  background: #ffc210;
  border: 1px solid #ffc210;
}

.course .course_pagination {
  margin-bottom: 60px;
  text-align: center;
}
</style>

4.2 课程详情页面

# 视频播放器,可以使用h5自带的video标签
	-画面比例,清晰度
    -倍速播放
    -静音
    -暂停可以插广告。。。
# 使用第三方:vue-video-player
cnpm install -S vue-core-video-player 

# mian.js
import VueCoreVideoPlayer from 'vue-core-video-player'
//或者
Vue.use(VueCoreVideoPlayer, {
  lang: 'zh-CN'
})



<template>
  <div class="detail">
    <Header/>
    <div class="main">
      <div class="course-info">
        <div class="wrap-left">
          <vue-core-video-player :src="mp4_url"
                                 :muted="true"
                                 :autoplay="false"
                                 title="致命诱惑"
                                 preload="nona"
                                 :loop="true"
                                 controls="auto"
                                 cover='https://img1.wxzxzj.com/vpc-example-cover-your-name-c.png'
                                 @loadedmetadata="onLoaded"
                                 @play="onPlayerPlay"
                                 @pause="onPlayerPause"
          ></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
      mp4_url: 'https://video.pearvideo.com/mp4/short/20230703/cont-1784316-71095491-hd.mp4',
    }
  },
  created() {
    this.get_course_id();
    this.get_course_data();
    this.get_chapter();
  },
  methods: {
    onl oaded() {
      console.log('视频播放第一帧')
    },
    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/${this.course_id}/`).then(response => {
        this.course_info = response.data.data;
        console.log(this.course_info)
      }).catch(() => {
        this.$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
      this.$axios.get(`${this.$settings.BASE_URL}course/course_chapter/`, {
        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>

5 视频托管

# 以后 静态文件(视频,图片,zip。。。),因为会越来越多,不会放在项目的media中---》使用第三方的托管平台---》第三方文件存储

# 存储视频,图片,文件
	-1 meida
    -2 第三方存储(花钱)
    	-七牛云
        -阿里 oss存储
        -其他。。。
    -3 自己公司内部搭建文件存储
    	-Ceph(重)、Minio(用的多一些)、FastDFS(老牌)
        -知乎:
        	-FastDFS:https://zhuanlan.zhihu.com/p/372286804
     	-Minio:之前学长写的博客
        	-参照一下:下午我搭建一下
            
        
# 使用七牛云托管
	-空间:存储文件的地方,不同空间相互隔离
    -注册七牛云账号
    -选择文件存储kodo
    -创建空间,手动上传视频
    
    
# 正常项目上传流程
	-后端:需要配合文件上传接口
    	-前端选择视频----》传到咱们后端----》后端把视频传到七牛云上----》返回地址--》存到咱们数据库
        -前端直接使用js---》传到七牛云---》七牛云返回地址---》向咱们后端发送ajax请求---》我们直接把地址存到库中即可
        
# 如何使用python把文件传到七牛云
	
from qiniu import Auth, put_file

q = Auth('', '')
#要上传的空间
bucket_name = 'lqz-luffy'
#上传后保存的文件名
key = '致命诱惑.mp4'
#生成上传 Token,可以指定过期时间等
token = q.upload_token(bucket_name, key, 3600)
#要上传文件的本地路径
localfile = './1.mp4'
ret, info = put_file(token, key, localfile, version='v2')
print(info)
print(ret)
print('http://rx7c1tgq2.hd-bkt.clouddn.com/'+key)
        
        
        
        
 # 域名备案相关
	1 以后写了项目,放到互联网上给别人用
    2 购买域名---》www.lqz.com
    3 备案---》工信部---》流程比较繁琐
    4 项目在  189.28.11.11  
    5 域名解析:只要www.lqz.com  ---》189.28.11.11  
        

标签:name,color,接口,course,课程,详情,margin,size
From: https://www.cnblogs.com/yuezongke/p/17535050.html

相关文章

  • C/C++数据结构与算法课程设计[2023-07-06]
    C/C++数据结构与算法课程设计[2023-07-06]数据结构与算法课程设计一、课程设计的目的、要求和任务 本课程设计是为了配合《数据结构与算法》课程的开设,通过设计完整的程序,使学生掌握数据结构的应用、算法的编写等基本方法。1.课程的目的(1)使学生进一步理解和掌握课堂上所学......
  • 浙大暑期密码学课程-笔记|两方安全计算
    浙大暑期密码学课程-笔记|两方安全计算视频地址:浙大暑期Crypto课程-MPCI(上)、浙大暑期Crypto课程-MPCI(下)参考:笔记分享|浙大暑期密码学课程:两方安全计算摘要多方安全计算(MPC)有着广泛的应用,本次课程将由来自浙江大学的张秉晟老师带来,主要讲解两方安全协议。安全多方计算的定......
  • 提升开发效率,轻松管理接口就用 Apipost
    API管理的难点在哪?相信无论是前端,还是后端的测试和开发人员,都遇到过这样的困难。不同工具之间数据一致性非常困难、低效。多个系统之间数据不一致,导致协作低效、频繁出问题,开发测试人员痛苦不堪。开发人员在Swagger定义好文档后,接口调试的时候还需要去Postman再定义一遍。......
  • 通过前端Ajax访问WebService形式的接口
    WebService是早期提供Web服务的一种形式(现在最新的方式是WebApi),其无关于编程语言,有java形式的WebService,也有C#形式的WebService。我们在项目中,需要和其他外部系统进行接口对接时,常使用WebService或WebApi,这取决于对方提供服务接口的使用的是那种技术。我们可以在本地模拟访问......
  • 前端Vue组件之仿京东拼多多领取优惠券弹出框popup 可用于电商商品详情领券场景使用
    随着技术的发展,开发的复杂度也越来越高,传统开发方式将一个系统做成了整块应用,经常出现的情况就是一个小小的改动或者一个小功能的增加可能会引起整体逻辑的修改,造成牵一发而动全身。通过组件化开发,可以有效实现单独开发,单独维护,而且他们之间可以随意的进行组合。大大提升开发效率......
  • 学城项目课程详情页面
    1.建立course文件夹 /1 cmd中进入到apps路径下 输入python../../manage.pystartappcourses创建出courseapp/2 记得在dev中注册app2.创建课程的相关表fromdjango.dbimportmodelsfromutils.common_modelsimportBaseModel#继承基表#课程分类表classCo......
  • 摄像头的视频传输接口
    一、视频传输的主要路劲视频原图像一般都来自摄像头,如果要将摄像头的产生视频进行显示、存储、处理等操作,就需要将摄像头的视频传输到处理器,在有处理器进行二次处理。从摄像头的结构组成可知,摄像头需要用感光芯片将光信号转换成电信号,然后用AD采集器将电信号转换成数字......
  • 学会使用 Postman 环境变量,让接口测试更加高效
    在 Postman 中,用Environments来管理环境变量。我们在开发的过程中,往往会用到多个环境:开发环境,测试环境,UAT环境,生产环境等。我们要调用不同环境的API时,只需切换Postman的Environment即可。下面,我们来具体说下Postman环境变量的使用方法。知识扩展:Postman环境设置介绍......
  • Map 接口及实现类
    Map接口Map接口介绍Map和Collection并列,用于保存具有映射关系的数据:Key-ValueMap中的key和value可以是任何的引用类型数据,会封装到HashMap$Node对象中Map中的key不允许重复,同HashSet一样Map的value可以重复Map的key可以为null,value也可以为n......
  • 软件测试常用工具总结(测试管理、单元测试、接口测试、自动化测试、性能测试、负载测试
    在软件测试的过程中,多多少少都是会接触到一些测试工具,作为辅助测试用的,以提高测试工作的效率,使用好了测试工具,能对测试起到一个很好的作用,同时,有些公司,也会要求掌握一些测试工具,或者,是在面试时,也会被问到测试工具的,比如,在面试时,最常见的问题便是,你在测试时,用的是什么测试工具?或者......