Django+xadmin打造在线教育平台（七）
代码
十、授课教师
10.1.讲师列表页
拷贝teacher-list.html和teacher-detail.html到templates目录下
先改teacher-list.html，同样继承base.html
（1）urls配置
organazition/urls.py
# 讲师列表
re_path('teacher/list/', TeacherListView.as_view(), name="teacher_list"),
(2)给Teacher Model添加一个年龄字段
teacher_age = models.IntegerField('年龄',default=25)
（3）view和模板
# 讲师列表
class TeacherListView(View):
def get(self, request):
all_teachers = Teacher.objects.all()
return render(request,'teachers-list.html',{
'all_teachers':all_teachers,
})
{% for teacher in all_teachers %}
<dl class="des">
<dt>
<a href="/org/teacher/detail/1/">
<div class="picpic">
<img width="100" height="100" class="scrollLoading" src="{{ MEDIA_URL }}{{ teacher.image }}"/>
</div>
</a>
<div class="btn">
<div class="fr btn2 bdsharebuttonbox"
data-text="授课教师-奥巴马-慕学在线"
data-desc="我在#慕课网#发现了教师“奥巴马”，对学习中的小伙伴很有帮助，一起来看看吧。"
data-comment="奥巴马金牌讲师，从业年限：5年"
>
<span class="fl">分享</span>
<a href="#" class="bds_more" data-cmd="more"></a>
</div>
</div>
</dt>
<dd>
<a href="/org/teacher/detail/1/">
<h1>{{ teacher.name }}<span class="key picbig">金牌讲师</span></h1>
</a>
<ul class="cont">
<li>工作年限：<span>{{ teacher.work_years }}年</span></li>
<li>工作职位：<span>{{ teacher.work_position }}</span></li>
<li>就职公司：<span>{{ teacher.work_company }} </span></li>
<li>年龄：<span>{{ teacher.teacher_age }}岁</span></li>
<li>教学特点：<span>{{ teacher.points }}</span></li>
</ul>
</dd>
<a class="buy buyservice" href="/org/teacher/detail/1/"><br/>查看<br/>详情</a>
</dl>
{% endfor %}
10.2.分页
# 讲师列表
class TeacherListView(View):
def get(self, request):
all_teachers = Teacher.objects.all()
# 总共有多少老师使用count进行统计
teacher_nums = all_teachers.count()
# 进行分页
try:
page = request.GET.get('page', 1)
except PageNotAnInteger:
page = 1
p = Paginator(all_teachers, 1, request=request)
teachers = p.page(page)
return render(request, "teachers-list.html", {
"all_teachers": teachers,
"teacher_nums": teacher_nums
})
<div class="pageturn">
<ul class="pagelist">
{% if all_teachers.has_previous %}
<li class="long"><a href="?{{ all_teachers.previous_page_number.querystring }}">上一页</a></li>
{% endif %}
{% for page in all_teachers.pages %}
{% if page %}
{% ifequal page all_teachers.number %}
<li class="active"><a href="?{{ page.querystring }}">{{ page }}</a></li>
{% else %}
<li><a href="?{{ page.querystring }}" class="page">{{ page }}</a></li>
{% endifequal %}
{% else %}
<li class="none"><a href="">...</a></li>
{% endif %}
{% endfor %}
{% if all_teachers.has_next %}
<li class="long"><a href="?{{ all_teachers.next_page_number.querystring }}">下一页</a></li>
{% endif %}
</ul>
</div>
10.3.排序
# 讲师列表
class TeacherListView(View):
def get(self, request):
all_teachers = Teacher.objects.all()
# 总共有多少老师使用count进行统计
teacher_nums = all_teachers.count()
# 人气排序
sort = request.GET.get('sort','')
if sort:
if sort == 'hot':
all_teachers = all_teachers.order_by('-click_nums')
#讲师排行榜
sorted_teacher = Teacher.objects.all().order_by('-click_nums')[:3]
# 进行分页
try:
page = request.GET.get('page', 1)
except PageNotAnInteger:
page = 1
p = Paginator(all_teachers, 1, request=request)
teachers = p.page(page)
return render(request, "teachers-list.html", {
"all_teachers": teachers,
"teacher_nums": teacher_nums,
'sorted_teacher':sorted_teacher,
'sort':sort,
})
排序
<ul class="fl tab_header">
<li {% if sort == '' %}class="active"{% endif %}><a href="?sort=">全部</a> </li>
<li {% if sort == 'hot' %}class="active"{% endif %}><a href="?sort=hot">人气 ↓</a></li>
</ul>
讲师排行榜
<div class="right layout">
<div class="head">讲师排行榜</div>
{% for hot_teacher in sorted_teacher %}
<dl class="des">
<span class="num fl">1</span>
<a href="/diary/hk_detail/6/">
<dt>
<img width="50" height="50" class="scrollLoading" src="{{ MEDIA_URL }}{{ hot_teacher.image }}"/>
</dt>
</a>
<dd>
<a href="/diary/hk_detail/6/">
<h1 title="{{ hot_teacher.name }}">{{ hot_teacher.name }}</h1>
</a>
<p>工作年限：<span>{{ hot_teacher.work_years }}年</span></p>
</dd>
</dl>
{% endfor %}
</div>
10.4.讲师详情页展示
# 讲师详情
re_path('teacher/detail/(?P<teacher_id>d+)/', TeacherDetailView.as_view(), name="teacher_detail"),
#讲师详情
class TeacherDetailView(View):
def get(self,request,teacher_id):
teacher = Teacher.objects.get(id=int(teacher_id))
all_course = Course.objects.filter(teacher=teacher)
# 讲师排行榜
sorted_teacher = Teacher.objects.all().order_by('-click_nums')[:3]
return render(request,'teacher-detail.html',{
'teacher':teacher,
'all_course':all_course,
'sorted_teacher':sorted_teacher,
})
讲师信息
<dl class="des">
<dt>
<div class="picpic">
<img width="100" height="100" src="{{ MEDIA_URL }}{{ teacher.image }}"/>
</div>
<div class="btn">
<span class="fl btn1 collectionbtn" id="jsLeftBtn">
{% if has_teacher_faved %}已收藏{% else %}收藏{% endif %}
</span>
<span class="fr btn2 shareBtn bdsharebuttonbox"
data-text="授课教师-李老师-慕学网"
data-desc="我在#慕课网#发现了"
data-comment="李老师，工作年限：5年；学历：本科；所在公司：阿里巴巴 ；经典案例：django入门和深入；flask入门"
data-url="/diary/hk_detail/10/">
<span class="fl">分享</span>
<a href="#" class="bds_more" data-cmd="more"></a>
</span>
</div>
</dt>
<dd>
<a href="/diary/hk_detail/10/">
<h1>{{ teacher.name }}<span class="key picbig">金牌讲师</span></h1>
</a>
<ul class="cont">
<li>工作年限：<span>{{ teacher.work_years }}年</span></li>
<li>就职公司：<span>{{ teacher.work_company }}</span></li>
<li>工作职位：<span>{{ teacher.work_position }} </span></li>
<li>教学特点：<span>{{ teacher.points }}</span></li>
</ul>
</dd>
</dl>
全部课程
<div class="head">
<ul class="tab_header">
<li class="active"><a href="/diary/hk_detail/10/">全部课程</a> </li>
</ul>
</div>
<div class="companycenter">
<div class="group_list brief">
{% for teacher_course in all_course %}
<div class="module1_5 box">
<a href="{% url 'course:course_detail' teacher_course.id %}">
<img width="214" height="190" class="scrollLoading" src="{{ MEDIA_URL }}{{ teacher_course.image }}"/>
</a>
<div class="des">
<a href="{% url 'course:course_detail' teacher_course.id %}"><h2>{{ teacher_course.name }}</h2></a>
<span class="fl">时长：<i class="key">{{ teacher_course.learn_times }}</i></span>
<span class="fr">学习人数：{{ teacher_course.students }}</span>
</div>
<div class="bottom">
<span class="fl">{{ teacher_course.course_org.name }}</span>
<span class="star fr notlogin" data-favid="15">{{ teacher_course.fav_nums }}</span>
</div>
</div>
{% endfor %}
</div>
</div>
教师机构
<div class="butler_detail_list">
<div class="right butler-company-box">
<div class="head">
<h1>{{ teacher.org.name }}</h1>
<p>知名高校，权威教学</p>
</div>
<div class="pic">
<a href="{% url 'org:org_home' teacher.org.id %}">
<img width="150" height="80" src="{{ MEDIA_URL }}{{ teacher.org.image }}"/>
</a>
</div>
<a href="{% url 'org:org_home' teacher.org.id %}">
<h2 class="center">{{ teacher.org.name }}</h2>
</a>
<p class="center tell">地址：{{ teacher.org.address }}</p>
<a class="btn" id="jsRightBtn">{% if has_org_faved %}已收藏{% else %}收藏{% endif %}</a>
</div>
</div>
讲师排行榜
<div class="right layout">
<div class="head">讲师排行榜</div>
{% for hot_teacher in sorted_teacher %}
<dl class="des">
<span class="num fl">1</span>
<a href="{% url 'org:teacher_detail' hot_teacher.id %}">
<dt>
<img width="50" height="50" class="scrollLoading" src="{{ MEDIA_URL }}{{ hot_teacher.image }}"/>
</dt>
</a>
<dd>
<a href="{% url 'org:teacher_detail' hot_teacher.id %}">
<h1 title="bobby">{{ hot_teacher.name }}</h1>
</a>
<p>工作年限：<span>{{ hot_teacher.work_years }}年</span></p>
</dd>
</dl>
{% endfor %}
</div>
10.5.收藏功能
view和前端
# 教师收藏和机构收藏
has_teacher_faved = False
if UserFavorite.objects.filter(user=request.user, fav_type=3, fav_id=teacher.id):
has_teacher_faved = True
has_org_faved = False
if UserFavorite.objects.filter(user=request.user, fav_type=2, fav_id=teacher.org.id):
has_org_faved = True
{% if has_teacher_faved %}已收藏{% else %}收藏{% endif %}
<a class="btn" id="jsRightBtn">{% if has_org_faved %}已收藏{% else %}收藏{% endif %}</a>
teacher-detail.html Ajax代码如下：
{% block custom_js %}
<script type="text/javascript">
//收藏分享
function add_fav(current_elem, fav_id, fav_type){
$.ajax({
cache: false,
type: "POST",
url:"{% url "org:add_fav" %}",
data:{'fav_id':fav_id, 'fav_type':fav_type},
async: true,
beforeSend:function(xhr, settings){
xhr.setRequestHeader("X-CSRFToken", "{{ csrf_token }}");
},
success: function(data) {
if(data.status == 'fail'){
if(data.msg == '用户未登录'){
window.location.href="/login/";
}else{
alert(data.msg)
}
}else if(data.status == 'success'){
current_elem.text(data.msg)
}
},
});
}
$('#jsLeftBtn').on('click', function(){
add_fav($(this), {{ teacher.id }}, 3);
});
$('#jsRightBtn').on('click', function(){
add_fav($(this), {{ teacher.org.id }}, 2);
});
</script>
{% endblock %}
teacher-detail.html10.6.配置全局导航
（1）index.html继承base.html
注意首页有个单独的“index.js”
index.html(2)配置全局导航和全局"active"状态
base.html里面设置
<div class="wp">
<ul>
<li {% if request.path == '/' %}class="active"{% endif %}><a href="{% url 'index' %}">首页</a></li>
<li {% if request.path|slice:'7' == '/course' %}class="active"{% endif %}>
<a href="{% url 'course:course_list' %}">
公开课<img class="hot" src="{% static 'images/nav_hot.png' %}">
</a>
</li>
<li {% if request.path|slice:'12' == '/org/teacher' %}class="active"{% endif %}>
<a href="{% url 'org:teacher_list' %}">授课教师</a>
</li >
<li {% if request.path|slice:'9' == '/org/list' %}class="active"{% endif %}>
<a href="{% url 'org:org_list' %}">授课机构</a></li>
</ul>
</div>
说明：
- request.path 可以获取当前访问页面的相对url
- 比如“http://127.0.0.1:8000/org/teacher_list/”，则request.path 就是“/org/teacher_list/”
- 比如"http://127.0.0.1:8000/org/teacher/detail/1/"，则request.path 就是“/org/teacher/detail/1/”
- slice:12 是过滤器，取前七位数
- 利用这种发发可以达到全局的“active”效果，而不用每个子页面都要去设置“active”了
10.7.全局搜索功能
通过url中加参数keywords来达到全局搜索的功能
以Course搜索为例：
# 搜索功能
search_keywords = request.GET.get('keywords', '')
if search_keywords:
# icontains是包含的意思（不区分大小写）
# Q可以实现多个字段，之间是or的关系
all_courses = all_courses.filter(Q(name__icontains=search_keywords) | Q(desc__icontains=search_keywords) | Q(
detail__icontains=search_keywords))
course/views.py搜索的代码放在deco-common js中：
//顶部搜索栏搜索方法
function search_click(){
var type = $('#jsSelectOption').attr('data-value'),
keywords = $('#search_keywords').val(),
request_url = '';
if(keywords == ""){
return
}
if(type == "course"){
request_url = "/course/list?keywords="+keywords
}else if(type == "teacher"){
request_url = "/org/teacher/list?keywords="+keywords
}else if(type == "org"){
request_url = "/org/list?keywords="+keywords
}
window.location.href = request_url
}
课程机构搜索功能
# 机构搜索功能
search_keywords = request.GET.get('keywords', '')
if search_keywords:
# 在name字段进行操作,做like语句的操作。i代表不区分大小写
# or操作使用Q
all_orgs = all_orgs.filter(Q(name__icontains=search_keywords) | Q(desc__icontains=search_keywords))
OrgView授课老师搜索功能
# 搜索功能
search_keywords = request.GET.get('keywords', '')
if search_keywords:
# 在name字段进行操作,做like语句的操作。i代表不区分大小写
# or操作使用Q
all_teachers = all_teachers.filter(name__icontains=search_keywords)
# 讲师列表
class TeacherListView(View):
def get(self, request):
all_teachers = Teacher.objects.all()
# 总共有多少老师使用count进行统计
teacher_nums = all_teachers.count()
# 搜索功能
search_keywords = request.GET.get('keywords', '')
if search_keywords:
# 在name字段进行操作,做like语句的操作。i代表不区分大小写
# or操作使用Q
all_teachers = all_teachers.filter(name__icontains=search_keywords)
# 人气排序
sort = request.GET.get('sort','')
if sort:
if sort == 'hot':
all_teachers = all_teachers.order_by('-click_nums')
#讲师排行榜
sorted_teacher = Teacher.objects.all().order_by('-click_nums')[:3]
# 进行分页
try:
page = request.GET.get('page', 1)
except PageNotAnInteger:
page = 1
p = Paginator(all_teachers, 1, request=request)
teachers = p.page(page)
return render(request, "teachers-list.html", {
"all_teachers": teachers,
"teacher_nums": teacher_nums,
'sorted_teacher':sorted_teacher,
'sort':sort,
})