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课程详情页接口与页面搭建

时间:2023-03-13 15:12:25浏览次数:41  
标签:item color margin 接口 course 详情页 size border 页面

封装CommonListModelMixin

from utils.common_response import APIResponse
from rest_framework.mixins import ListModelMixin
class CommonListModelMixin(ListModelMixin):
    def list(self,request,*args,**kwargs):
        res=super().list(request,*args,**kwargs)
        return APIResponse(data=res.data)

课程分类接口

视图类

# 课程分类接口(Python/Linux)

from rest_framework.viewsets import GenericViewSet
from .serializer import CourseCategorySerializer
from utils.common_view import CommonListModelMixin
from .models import CourseCategory


class CourseCategoryView(GenericViewSet,CommonListModelMixin):
    queryset = CourseCategory.objects.filter(is_delete=False,is_show=True).order_by('orders')
    serializer_class = CourseCategorySerializer

序列化类

# course/serializer.py
from rest_framework.serializers import ModelSerializer
from .models import CourseCategory

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

路由

from rest_framework.routers import SimpleRouter
from . import views

router = SimpleRouter()

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

urlpatterns = [

]

urlpatterns += router.urls

所有课程接口和单分类下的所有课程接口(过滤、排序)

视图类

class CourseView(GenericViewSet,CommonListModelMixin,RetrieveModelMixin):
    queryset = Course.objects.filter(is_delete=False,is_show=True).order_by('orders')
    serializer_class = CourseSerializer
    # 分页
    pagination_class = BookPagination
    # 排序
    filter_backends = [OrderingFilter,DjangoFilterBackend]
    ordering_fields = ['price','students']
    # 过滤,根据分类过滤,第三方过滤django_filters
    filterset_fields =['course_category']   # 按课程分类过滤

    # 同一分类下的所有课程
    def retrieve(self, request, *args, **kwargs):
        res = super().retrieve(request,*args,**kwargs)
        return APIResponse(data=res.data)            

序列化类

# 老师的序列化类
class TeacherSerializer(ModelSerializer):
    class Meta:
        model = Teacher
        fields= ['id','name','role_name','title','signature','image','brief']
        

        
class CourseSerializer(ModelSerializer):
    # 通过子序列化引入老师字段
    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)
        ]

表模型

class Course(BaseModel):
    ...

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

    def course_type_name(self):
        return self.get_course_type_display()  # 返回choice对应的名字

    def level_name(self):
        return self.get_level_display()  # 返回choice对应的名字

    def status_name(self):
        return self.get_status_display()  # 返回choice对应的名字

    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,拿出所有课时
            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
    
    
# 老师表
class Teacher(BaseModel):
     ...
        
     def __str__(self):
        return "%s" % self.name

    def role_name(self):
        return self.get_role_display()

路由

from rest_framework.routers import SimpleRouter
from . import views

router = SimpleRouter()

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

课程主页前端

<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="'/course/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="[1, 2, 3, 5, 10]"
            :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: 1,       // 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.$settings.BASE_URL}/course/category/`).then(response => {
        console.log(response.data)
        this.category_list = response.data.data;
      }).catch(() => {
        this.$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;
        console.log(filters.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 => {
        console.log(response.data);
        this.course_list = response.data.data.results;
        this.course_total = response.data.data.count;

        // console.log(this.course_list);
      }).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>

课程详情接口

 

视图类

# 课程章节接口
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']  # 按课程过滤

序列化类

# 课时的序列化类
class CourseSectionSerializer(ModelSerializer):
    class Meta:
        model = CourseSection
        fields = [
            'id',
            'name', # 时间名字
            'orders',   # 课时排序
            'section_link', # 课时视频链接
            'duration', # 课时简介
            'free_trail'   # 是否免费
        ]


# 章节的序列化类
class CourseChapterSerializer(ModelSerializer):
    # 通过子序列化引入课时字段
    coursesections = CourseSectionSerializer(many=True)

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

课程详情前端

<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/third/20230307/cont-1779481-10023871-222053-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.$route.params.pk || this.$route.query.pk;
      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,根据课程id号获取相应的课程详情
      // http://127.0.0.1:8000/course/course/?course=(pk)
      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      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>

 

<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="'/course/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="[1, 2, 3, 5, 10]"            :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: 1,       // 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.$settings.BASE_URL}/course/category/`).then(response => {        console.log(response.data)        this.category_list = response.data.data;      }).catch(() => {        this.$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;        console.log(filters.page)      } else {        filters.page = 1;      }

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

标签:item,color,margin,接口,course,详情页,size,border,页面
From: https://www.cnblogs.com/chen-ao666/p/17211468.html

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