from django.contrib import admin
from unfold.admin import ModelAdmin, StackedInline
from django.db import models
from django.forms import widgets
from .models import Subject, Assignment, Submission, Question, Answer
@admin.register(Subject)
class SubjectAdmin(ModelAdmin):
list_display = ('name',)
list_display_links = ('name',)
class QuestionInline(StackedInline):
model = Question
extra = 0
class Media:
js = ('js/admin_assignment.js',)
@admin.register(Assignment)
class AssignmentAdmin(ModelAdmin):
list_display = ('title', 'subject', 'is_published', 'time_limit', 'deadline', 'allow_late_submissions', 'created_at')
list_display_links = ('title',)
list_filter = ('subject', 'is_published', 'allow_late_submissions')
search_fields = ('title', 'description')
fieldsets = (
('Основная информация', {
'fields': ('title', 'subject', 'short_description', 'description')
}),
('Настройки доступа и времени', {
'fields': ('is_published', 'assign_to_all', 'assigned_students', 'deadline', 'time_limit')
}),
('Настройки проверки', {
'fields': ('allow_late_submissions', 'passing_threshold')
}),
)
filter_horizontal = ('assigned_students',)
inlines = [QuestionInline]
actions = ['make_published', 'make_unpublished', 'delete_selected_assignments']
@admin.action(description="Опубликовать выбранные задания")
def make_published(self, request, queryset):
updated = queryset.update(is_published=True)
self.message_user(request, f"Опубликовано {updated} заданий.")
@admin.action(description="Скрыть выбранные задания (в черновик)")
def make_unpublished(self, request, queryset):
updated = queryset.update(is_published=False)
self.message_user(request, f"Скрыто {updated} заданий.")
@admin.action(description="Удалить выбранные задания")
def delete_selected_assignments(self, request, queryset):
deleted_count = 0
for obj in queryset:
if self.has_delete_permission(request, obj):
obj.delete()
deleted_count += 1
self.message_user(request, f"Успешно удалено {deleted_count} заданий.")
def get_queryset(self, request):
qs = super().get_queryset(request)
if request.user.is_superuser or request.user.role == 'ADMIN':
return qs
return qs.filter(created_by=request.user)
def save_model(self, request, obj, form, change):
if getattr(obj, 'created_by_id', None) is None:
obj.created_by = request.user
super().save_model(request, obj, form, change)
def has_delete_permission(self, request, obj=None):
if request.user.is_superuser or request.user.role == 'ADMIN':
return True
if request.user.role == 'TEACHER':
if obj is not None and obj.created_by != request.user:
return False
return True
return False
from django.utils.html import format_html
class AnswerInline(StackedInline):
model = Answer
extra = 0
readonly_fields = ('question', 'get_student_answer')
fields = ('question', 'get_student_answer', 'is_correct', 'points', 'comment')
def get_student_answer(self, obj):
if not obj or not obj.pk:
return ""
if obj.question.question_type == 'TEXT_AUTO':
return obj.text_answer or "Нет ответа"
elif obj.question.question_type == 'TABLE_AUTO':
import json
try:
data = json.loads(obj.text_answer)
html = ''
for row in data:
html += f'| {row[0]} | {row[1]} |
'
html += '
'
return format_html(html)
except Exception:
return obj.text_answer or "Нет ответа"
else:
if obj.file_answer:
return format_html('Скачать файл', obj.file_answer.url)
return "Файл не прикреплен"
get_student_answer.short_description = 'Ответ ученика'
def has_add_permission(self, request, obj=None):
return False
from django.utils.html import format_html
@admin.register(Submission)
class SubmissionAdmin(ModelAdmin):
change_list_template = "admin/lms/submission/change_list.html"
list_display = ('assignment', 'student', 'status', 'is_time_expired', 'is_late', 'grade', 'submitted_at')
list_filter = ('status', 'assignment__subject', 'student', 'is_time_expired', 'is_late')
search_fields = ('student__username', 'assignment__title')
inlines = [AnswerInline]
fieldsets = (
('Параметры проверки и оценка', {
'fields': ('statistics', ('assignment', 'student'), ('grade', 'status'), ('is_time_expired', 'is_late'), 'teacher_feedback')
}),
('Временные метки', {
'fields': (('started_at', 'submitted_at'),)
}),
)
def get_readonly_fields(self, request, obj=None):
if obj:
return ('statistics', 'assignment', 'student', 'is_time_expired', 'is_late', 'started_at', 'submitted_at')
return ('statistics', 'is_time_expired', 'is_late', 'started_at', 'submitted_at')
@admin.display(description='Статистика (сохраните оценку в формате X/Y, чтобы обновить)')
def statistics(self, obj):
stats = obj.get_statistics() if obj else None
if not stats:
return format_html('Оценка не выставлена или имеет неверный формат. Укажите оценку в формате "X/Y" (например, "3/27").
')
try:
return format_html(
'''
Выполнение: {percentage_str}%
{threshold_text}
0 б
Порог: {threshold_points} б
Максимум: {total_int} б
''',
grade=obj.grade,
percentage_str=stats['percentage_str'],
threshold_text=stats['threshold_text'],
color=stats['color'],
total_int=stats['total'],
threshold_points=stats['threshold_points']
)
except Exception as e:
return format_html(
'Ошибка при отрисовке статистики: {error}
',
error=str(e)
)
def save_formset(self, request, form, formset, change):
instances = formset.save(commit=False)
for instance in instances:
if isinstance(instance, Answer):
if instance.is_correct and instance.points is None:
instance.points = instance.question.points
elif instance.is_correct is False and instance.points is None:
instance.points = 0
instance.save()
for obj in formset.deleted_objects:
obj.delete()
formset.save_m2m()
if formset.model == Answer:
submission = formset.instance
total_earned = sum((ans.points or 0) for ans in submission.answers.all())
total_max = sum((q.points or 1) for q in submission.assignment.questions.all())
new_grade = f"{total_earned}/{total_max}"
if submission.grade != new_grade:
submission.grade = new_grade
submission.save(update_fields=['grade'])
def get_queryset(self, request):
qs = super().get_queryset(request)
if request.user.is_superuser or request.user.role == 'ADMIN':
return qs
if request.user.role == 'TEACHER':
return qs.filter(assignment__created_by=request.user)
return qs.filter(student=request.user)