Django 中的分页无法按预期工作

Question

我想要所有可用课程的分页，这很容易实现。 但是现在我被卡住了，因为我还想要为教师分页，这将显示访问教师的特定课程。 我有 4 个模型：院系、系、研究和课程。 分页也会显示给院系，但问题是如果我尝试转到第二页，它会将我重定向到所有课程列表的第二页。 或者，如果我更改所有课程的页面，然后尝试访问某个教员，则该教员中根本不会显示任何课程。

def index(request):
    course_list = Course.objects.all()
    page = request.GET.get('page', 1)
    paginator = Paginator(course_list, 1)
    try:
        courses = paginator.page(page)
    except PageNotAnInteger:
        courses = paginator.page(1)
    except EmptyPage:
        courses = paginator.page(paginator.num_pages)
    faculty_list = Faculty.objects.all()
    page = request.GET.get('page2', 1)
    paginator = Paginator(faculty_list, 1)
    try:
        faculties = paginator.page(page)
    except PageNotAnInteger:
        faculties = paginator.page(1)
    except EmptyPage:
        faculties = paginator.page(paginator.num_pages)
    context = {'courses': courses,
               'faculties': faculties,
               'departments': Department.objects.all(),
               'studies': StudyProgramme.objects.all(),
               'teachers': Teacher.objects.all()
               }
    return render(request, 'courses/index.html', context)

 <div id="crs"> <h3>All courses</h3> <ul> {% for course in courses %} <li><a href={{ course.slug }}>{{ course.name }}</a></li> {% endfor %} </ul> <div class="pagination"> <span class="step-links"> {% if courses.has_previous %} <a href="?page=1">&laquo; first</a> <a href="?page={{ courses.previous_page_number }}">{{ courses.previous_page_number }}</a> {% endif %} <span class="current"> Page {{ courses.number }} of {{ courses.paginator.num_pages }} </span> {% if courses.has_next %} <a href="?page={{ courses.next_page_number }}">{{ courses.next_page_number }}</a> <a href="?page={{ courses.paginator.num_pages }}">last &raquo;</a> {% endif %} </span> </div> </div> {% for faculty in faculties %} <div id="fac_{{ faculty.pk }}_tab" style="display:none;"> <h3> {{ faculty.name }} Courses</h3> <ul> {% for department in faculty.department_set.all %} {% for study in studies %} {% if study.department == department %} {% for course in courses %} {% if course.study_programme == study %} <li> <a class="first" href={{ course.slug }}>{{ course.name }}</a> </li> {% endif %} {% endfor %} {% endif %} {% endfor %} {% endfor %} </ul> <div class="pagination"> <span class="step-links"> {% if faculties.has_previous %} <a href="?page2=1">&laquo; first</a> <a href="?page2={{ faculties.previous_page_number }}">{{ faculties.previous_page_number }}</a> {% endif %} <span class="current"> Page {{ faculties.number }} of {{ faculties.paginator.num_pages }} </span> {% if faculties.has_next %} <a href="?page2={{ faculties.next_page_number }}">{{ faculties.next_page_number }}</a> <a href="?page2={{ faculties.paginator.num_pages }}">last &raquo;</a> {% endif %} </span> </div> </div> {% endfor %}

Answer 1

您的视图肯定会处理一个分页参数page ，该page将定向到课程，这不是 Django 问题，因此，如果您更改了每个模型分页的 get 参数，它将起作用。

例如：

## views.py
page = request.GET.get('page')
## yourtemplate.html
<a href="?page={{ yourcontext }}">yourtext</a>
localhost:8000/MYVIEW/?page=2  # Goes to courses

## views.py    
page = request.GET.get('faculties')
## yourtemplate.html
<a href="?faculties={{ yourcontext }}">yourtext</a>
##
localhost:8000/MYVIEW/?faculties=2 # Goes to faculties

等..

编辑：

{% for Faculties %} 将其更改为 {% for Faculties2 %} 并从您的上下文中删除 Faculties，因为您正在重复自己，因为 Faculties2 和 Faculties 持有相同的查询集。

Answer 2

paginator = Paginator(course_list, 1)

paginator = Paginator(faculty_list, 1)

将您的第二个实例名称更改为paginator_two将解决您的问题