1、编辑course-comment.html
2、编辑courses.views.py
class CourseCommentView(LoginRequiredMixin, View):
def get(self, request, course_id):
course = Course.objects.get(id=course_id)
return render(request, 'course-comment.html', {
'course': course,
})
3、配置url
...
from .views import CourseCommentView
urlpatterns = [
...
url(r'comment/(?P<course_id>d+)/$', CourseCommentView.as_view(), name='course_comment'),
]
4、在章节前端页面（course-video.html）修改链接
5、在评论前端页面（course-comment.html）修改链接
7、资料下载、讲师提示、课程推荐和之前一样
class CourseCommentView(LoginRequiredMixin, View):
def get(self, request, course_id):
course = Course.objects.get(id=course_id)
all_resource = CourseResource.objects.filter(course=course)
# 查询用户是否已经关联了该数据
user_course = UserCourse.objects.filter(user=request.user, course=course)
if not user_course:
# 如果没有则写入数据库
my_course = UserCourse(user=request.user, course=course)
my_course.save()
# 该同学还学过
user_courses = UserCourse.objects.filter(course=course) #获取“用户课程”表里面该课程的所有记录
user_ids = [user_course.user.id for user_course in user_courses] #获取学过该课程的所有用户id
all_user_courses = UserCourse.objects.filter(user_id__in=user_ids) #获取这些用户学过的课程记录
course_ids = [user_course.id for user_course in all_user_courses] #获取这些课程的id
relate_courses = Course.objects.filter(id__in=course_ids).order_by('-click_nums')[:5] #根据点击量取出5个
return render(request, 'course-comment.html', {
'course': course,
'all_resource': all_resource,
'relate_courses': relate_courses,
})
8、上面的前端部分这里就不截图演示了
评论部分
编辑courses.view.py，创建一个评论的类
...
from operation.models import CourseComments
from django.http import HttpResponse
class AddCommentView(View):
def post(self, request):
if not request.user.is_authenticated():
# 判断用户登录状态
return HttpResponse('{"status":"fail", "msg":"用户未登录"}', content_type='application/json')
course_id = request.POST.get('course_id', 0)
comments = request.POST.get('comments', '')
if int(course_id) > 0 and comments:
course_comments = CourseComments()
course = Course.objects.get(id=int(course_id))
course_comments.course = course
course_comments.comments = comments
course_comments.user = request.user
course_comments.save()
return HttpResponse('{"status":"success", "msg":"添加成功"}', content_type='application/json')
else:
return HttpResponse('{"status":"fail", "msg":"添加失败"}', content_type='application/json')
配置url,编辑courses.urls.py
...
from .views import AddCommentView
urlpatterns = [
...
url(r'add_comment/$', AddCommentView.as_view(), name='add_comment'),
]
编辑course-comment.html中的js部分
编辑courses.models.py，利用外键获取本课程的评论
class Course(models.Model):
name = models.CharField(max_length=50, verbose_name='课程名')
course_org = models.ForeignKey(CourseOrg, verbose_name='课程机构')
desc = models.CharField(max_length=300, verbose_name='课程描述')
details = models.TextField(verbose_name='课程详情')
degree = models.CharField(verbose_name='课程难度', choices=(('cj', '初级'), ('zj', '中级'), ('gj', '高级')), max_length=2)
learn_times = models.IntegerField(default=0, verbose_name='学习时长（分钟）')
students = models.IntegerField(default=0, verbose_name='学习人数')
fav_nums = models.IntegerField(default=0, verbose_name='收藏人数')
image = models.ImageField(upload_to='courses/%Y/%m', verbose_name='封面图', max_length=100)
click_nums = models.IntegerField(default=0, verbose_name='点击数')
category = models.CharField(max_length=10, verbose_name=u'类别', default='')
tag = models.CharField(max_length=10, verbose_name=u'标签', default='')
teacher = models.ForeignKey(Teacher, verbose_name='课程讲师', null=True, blank=True)
youneed_know = models.CharField(default='', max_length=300, verbose_name='课程须知')
teacher_tell = models.CharField(default='', max_length=300, verbose_name='你能学到')
add_time = models.DateTimeField(default=datetime.now, verbose_name='添加时间')
class Meta:
verbose_name = '课程'
verbose_name_plural = verbose_name
def get_lesson_nums(self):
"""获取章节数"""
return self.lesson_set.count()
def get_lesson(self):
"""获取章节"""
return self.lesson_set.all()
def get_students(self):
"""获取3个学习用户"""
return self.usercourse_set.all()[:3]
def get_comment(self):
"""获取评论"""
return self.coursecomments_set.all()
def __str__(self):
return self.name
前端页面动态展示评论
