标签:sources 视频播放 paginati signature nal 配置信息 object assets padding
目录
1. 新建一个pagination.py文件,自定义分页类
# pagination.py文件中:
from rest_framework import pagination
# 自定义基础分页类
class PageNumberPagination(pagination.PageNumberPagination):
# 默认一页显示的条数
page_size = 2
# 查询页面的关键字,就是在url中参数的key
page_query_param = 'page'
# 用户自定义一页显示条数的关键字,就是在url中参数的key
page_size_query_param = 'page_size'
# 用户最大可自定义一页显示的条数
max_page_size = 2
# 自定义偏移分页类
class LimitOffsetPagination(pagination.LimitOffsetPagination):
# 默认一页显示的条数
default_limit = 2
# 用户自定义一页显示的条数
limit_query_param = 'limit'
# 用户自定义偏移的条数
offset_query_param = 'offset'
# 用户最大可自定义一页显示的条数
max_limit = 2
2. 在views.py文件中配置任意一个分页类
*******群查接口的视图类中:*********
from . import paginations
class FreeCourseListViewSet(ListModelMixin, GenericViewSet):
queryset = models.Course.objects.filter(is_delete=False, is_show=True).all()
serializer_class = serializers.CourseModelSerializer
# 配置某一个分页类即可,用法是一样的,这里配置的是基础分页类
pagination_class = paginations.PageNumberPagination
# 注:接口分页前后,response的格式不一样
# 分页前:数据是response.data
# 分页后:数据是response.data.results
3. 访问接口的url形式
(1)基础分页的url格式,不加拼接参数,则默认不分页
127.0.0.1:8000/courses/?page=数字&page_size=数字
(2)偏移分页的url格式,不加拼接参数,则默认不分页
127.0.0.1:8000/courses/?limit=数字&offset=数字
1. views.py文件中配置搜索组件和搜索字段
*******群查接口的视图类中:*********
from rest_framework.filters import SearchFilter
class FreeCourseListViewSet(ListModelMixin, GenericViewSet):
queryset = models.Course.objects.filter(is_delete=False, is_show=True).all()
serializer_class = serializers.CourseModelSerializer
# 配置搜索组件
filter_backends = [SearchFilter]
# 配置参与搜索字段(只能是模型类中的字段,不包括后来自定义的字段)
search_fields = ['name', 'brief']
# 规则:
# 参与全文搜索的字段为name和brief(两个字段必须都是数据库表字段)
# 接口:?search=搜索关键字,会全文匹配name和brief两个字段
2. 访问接口的url形式
127.0.0.1:8000/courses/?search=关键字 # 该关键字会匹配 search_fields 中配置的所有字段所对应的数据
1. views.py文件中配置排序组件和排序字段
*******群查接口的视图类中:*********
from rest_framework.filters import OrderingFilter
class FreeCourseListViewSet(ListModelMixin, GenericViewSet):
queryset = models.Course.objects.filter(is_delete=False, is_show=True).all()
serializer_class = serializers.CourseModelSerializer
# 配置排序组件
filter_backends = [OrderingFilter]
# 配置参与排序字段
ordering_fields = ['price', 'id', 'students']
# 规则:
# ?ordering=price 按价格升序
# ?ordering=-price 按价格降序
# ?ordering=id 按主键升序
# ?ordering=-price,id 按价格降序,价格相同时按主键升序
2. 访问接口的url的格式
127.0.0.1:8000/courses/?ordering=配置的排序字段 # 排序字段可加负号,表示降序
1. 新建filters.py文件,用来自定义过滤类
# 本自定义过滤器功能:实现filter_queryset可以接收request, queryset, view返回过滤处理后的queryset即可
class MyFilter:
def filter_queryset(self, request, queryset, view):
# 过滤条件是死的,?count=数字,也可以写高级一点,从view中去反射配置信息,或者将配置信息放在settings中
count = request.query_params.get('count', None)
if not count:
return queryset # 没过滤
try:
count = int(count)
return queryset[:count] # 过滤
except:
return queryset # 没过滤
2. 在views.py文件中导入使用自定义的过滤类
*******群查接口的视图类中:*********
from .filters import MyFilter
class FreeCourseListViewSet(ListModelMixin, GenericViewSet):
queryset = models.Course.objects.filter(is_delete=False, is_show=True).all()
serializer_class = serializers.CourseModelSerializer
# 配置自定义过滤组件
filter_backends = [MyFilter]
3. 访问接口的url格式:
127.0.0.1:8000/courses/?count=数字
1. 安装插件
pip install django-filter
2. 新建filters.py文件,自定义过滤类
from django_filters import filters
from . import models
class CourseFilterSet(FilterSet):
# 实现区间:field_name关联model表属性,lookup_expr设置过滤规则
min_price = filters.NumberFilter(field_name='price', lookup_expr='gte')
max_price = filters.NumberFilter(field_name='price', lookup_expr='lte')
class Meta:
model = models.Course
# min_price 和 max_price 自定义规则字段可以不在fields中配置
fields = ['course_category']
3. views.py文件中,配置过滤组件
*******群查接口的视图类中:*********
from django_filters.rest_framework import DjangoFilterBackend
from .filters import CourseFilterSet
class FreeCourseListViewSet(ListModelMixin, GenericViewSet):
queryset = models.Course.objects.filter(is_delete=False, is_show=True).all()
serializer_class = serializers.CourseModelSerializer
# 配置过滤组件
filter_backends = [DjangoFilterBackend]
# 配置过滤规则的类
filter_class = CourseFilterSet
# 规则:
# ?course_category=1 课程分组1所有的课程
# ?min_price=10 课程价格大于等于10的所有课程
# ?min_price=10&max_price=100 课程价格大于等于10小于等于100的所有课程
4. 访问接口url格式
127.0.0.1:8000/courses/?course_category=数据库中对应的某个值 # 分类
127.0.0.1:8000/courses/?min_price=数字&max_price=数字 # 区间
1. 在main.js文件中配置播放器组件
// vue-video播放器
require('video.js/dist/video-js.css');
require('vue-video-player/src/custom-theme.css');
import VideoPlayer from 'vue-video-player'
Vue.use(VideoPlayer);
<template>
<div class="detail">
<Header/>
<div class="main">
<div class="course-info">
<div class="wrap-left">
<!-- *******************播放器组件配置******************************** -->
<videoPlayer class="video-player vjs-custom-skin"
ref="videoPlayer"
:playsinline="true"
:options="playerOptions"
@play="onPlayerPlay($event)"
@pause="onPlayerPause($event)">
</videoPlayer>
<!-- *******************播放器组件配置******************************** -->
</div>
<div class="wrap-right">
<h3 class="course-name">{{course_info.name}}</h3>
<p class="data">{{course_info.students}}人在学 课程总时长:{{course_info.sections}}课时/{{course_info.pub_sections}}小时 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"
// 加载组件
import {videoPlayer} from 'vue-video-player';
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
// **********************播放器组件配置**********************************
playerOptions: {
aspectRatio: '16:9', // 将播放器置于流畅模式,并在计算播放器的动态大小时使用该值。值应该代表一个比例 - 用冒号分隔的两个数字(例如"16:9"或"4:3")
sources: [{ // 播放资源和资源格式
type: "video/mp4",
src: "http://img.ksbbs.com/asset/Mon_1703/05cacb4e02f9d9e.mp4" //你的视频地址(必填)
}],
}
// **********************播放器组件配置**********************************
}
},
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***************
// ****************this.$message('开始播放')**************
},
onPlayerPause() {
// 当视频暂停播放时,执行的方法
// console.log(this.playerOptions.sources[0].src);
// this.playerOptions.sources[0].src = ''
// this.$message('视频暂停')
},
get_course_id() {
// 获取地址栏上面的课程ID
this.course_id = this.$route.params.pk;
if (this.course_id < 1) {
let _this = this;
_this.$alert("对不起,当前视频不存在!", "警告", {
callback() {
_this.$router.go(-1);
}
});
}
},
// 课程单查接口
get_course_data() {
// ajax请求课程信息
this.$axios.get(`${this.$settings.base_url}/course/free/${this.course_id}/`).then(response => {
// window.console.log(response.data);
this.course_info = response.data;
}).catch(() => {
this.$message({
message: "对不起,访问页面出错!请联系客服工作人员!"
});
})
},
// 所有章节所有课时
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/chapters/`, {
params: {
"course": this.course_id,
}
}).then(response => {
this.course_chapters = response.data;
}).catch(error => {
window.console.log(error.response);
})
},
},
components: {
Header,
// Footer,
videoPlayer, // 注册组件
}
}
</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:sources 视频播放 paginati signature nal 配置信息 object assets padding
原文地址:https://www.cnblogs.com/Mcoming/p/12189296.html