|
| 1 | +import io |
| 2 | +from collections import defaultdict |
| 3 | +from zoneinfo import ZoneInfo |
| 4 | + |
| 5 | +from django.utils import timezone |
| 6 | +from django.db.models import Prefetch |
| 7 | +from openpyxl import Workbook |
| 8 | + |
| 9 | +from core.utils import build_xlsx_download_response, sanitize_excel_value |
| 10 | +from courses.models import ( |
| 11 | + Course, |
| 12 | + CourseLessonContentStatus, |
| 13 | + CourseModuleContentStatus, |
| 14 | + CourseTask, |
| 15 | + CourseTaskContentStatus, |
| 16 | + CourseTaskKind, |
| 17 | + ProgressStatus, |
| 18 | + UserCourseProgress, |
| 19 | + UserLessonProgress, |
| 20 | + UserTaskAnswer, |
| 21 | + UserTaskAnswerFile, |
| 22 | + UserTaskAnswerOption, |
| 23 | +) |
| 24 | + |
| 25 | + |
| 26 | +MSK_TZ = ZoneInfo("Europe/Moscow") |
| 27 | +BASE_HEADERS = ( |
| 28 | + "Имя и Фамилия", |
| 29 | + "Email", |
| 30 | + "Прогресс курса, %", |
| 31 | + "Дата начала прохождения", |
| 32 | + "Название курса", |
| 33 | + "Текущий этап", |
| 34 | +) |
| 35 | + |
| 36 | + |
| 37 | +def _format_msk_datetime(value) -> str: |
| 38 | + if value is None: |
| 39 | + return "" |
| 40 | + if timezone.is_naive(value): |
| 41 | + value = timezone.make_aware(value, timezone.get_current_timezone()) |
| 42 | + return value.astimezone(MSK_TZ).strftime("%d.%m.%Y %H:%M:%S") |
| 43 | + |
| 44 | + |
| 45 | +def _full_name(user) -> str: |
| 46 | + full_name = f"{user.first_name} {user.last_name}".strip() |
| 47 | + return full_name or user.email |
| 48 | + |
| 49 | + |
| 50 | +def _export_tasks(course: Course) -> list[CourseTask]: |
| 51 | + return list( |
| 52 | + CourseTask.objects.filter( |
| 53 | + lesson__module__course=course, |
| 54 | + lesson__module__status=CourseModuleContentStatus.PUBLISHED, |
| 55 | + lesson__status=CourseLessonContentStatus.PUBLISHED, |
| 56 | + status=CourseTaskContentStatus.PUBLISHED, |
| 57 | + task_kind=CourseTaskKind.QUESTION, |
| 58 | + ) |
| 59 | + .select_related("lesson__module") |
| 60 | + .order_by( |
| 61 | + "lesson__module__order", |
| 62 | + "lesson__module__id", |
| 63 | + "lesson__order", |
| 64 | + "lesson__id", |
| 65 | + "order", |
| 66 | + "id", |
| 67 | + ) |
| 68 | + ) |
| 69 | + |
| 70 | + |
| 71 | +def _started_course_progresses(course: Course) -> list[UserCourseProgress]: |
| 72 | + return list( |
| 73 | + UserCourseProgress.objects.filter( |
| 74 | + course=course, |
| 75 | + started_at__isnull=False, |
| 76 | + ) |
| 77 | + .select_related("user", "course") |
| 78 | + .order_by("user__last_name", "user__first_name", "user__email", "id") |
| 79 | + ) |
| 80 | + |
| 81 | + |
| 82 | +def _lesson_progresses_by_user(user_ids: list[int], course: Course) -> dict[int, list[UserLessonProgress]]: |
| 83 | + if not user_ids: |
| 84 | + return {} |
| 85 | + |
| 86 | + progress_map: dict[int, list[UserLessonProgress]] = defaultdict(list) |
| 87 | + progresses = ( |
| 88 | + UserLessonProgress.objects.filter( |
| 89 | + user_id__in=user_ids, |
| 90 | + lesson__module__course=course, |
| 91 | + lesson__module__status=CourseModuleContentStatus.PUBLISHED, |
| 92 | + lesson__status=CourseLessonContentStatus.PUBLISHED, |
| 93 | + ) |
| 94 | + .select_related("lesson__module", "current_task") |
| 95 | + .order_by( |
| 96 | + "lesson__module__order", |
| 97 | + "lesson__module__id", |
| 98 | + "lesson__order", |
| 99 | + "lesson__id", |
| 100 | + "id", |
| 101 | + ) |
| 102 | + ) |
| 103 | + for progress in progresses: |
| 104 | + progress_map[progress.user_id].append(progress) |
| 105 | + return progress_map |
| 106 | + |
| 107 | + |
| 108 | +def _answers_by_user_and_task( |
| 109 | + user_ids: list[int], |
| 110 | + task_ids: list[int], |
| 111 | +) -> dict[tuple[int, int], UserTaskAnswer]: |
| 112 | + if not user_ids or not task_ids: |
| 113 | + return {} |
| 114 | + |
| 115 | + answers = ( |
| 116 | + UserTaskAnswer.objects.filter(user_id__in=user_ids, task_id__in=task_ids) |
| 117 | + .prefetch_related( |
| 118 | + Prefetch( |
| 119 | + "selected_options", |
| 120 | + queryset=UserTaskAnswerOption.objects.select_related("option").order_by( |
| 121 | + "option__order", |
| 122 | + "option__id", |
| 123 | + "id", |
| 124 | + ), |
| 125 | + ), |
| 126 | + Prefetch( |
| 127 | + "files", |
| 128 | + queryset=UserTaskAnswerFile.objects.select_related("file").order_by( |
| 129 | + "datetime_uploaded", |
| 130 | + "id", |
| 131 | + ), |
| 132 | + ), |
| 133 | + ) |
| 134 | + ) |
| 135 | + return {(answer.user_id, answer.task_id): answer for answer in answers} |
| 136 | + |
| 137 | + |
| 138 | +def _task_header(task: CourseTask) -> str: |
| 139 | + return ( |
| 140 | + f"Модуль {task.lesson.module.order}: {task.lesson.module.title} / " |
| 141 | + f"Урок {task.lesson.order}: {task.lesson.title} / " |
| 142 | + f"Задание {task.order}: {task.title}" |
| 143 | + ) |
| 144 | + |
| 145 | + |
| 146 | +def _format_stage( |
| 147 | + course_progress: UserCourseProgress, |
| 148 | + lesson_progresses: list[UserLessonProgress], |
| 149 | +) -> str: |
| 150 | + if course_progress.status == ProgressStatus.COMPLETED: |
| 151 | + return "Курс завершён" |
| 152 | + |
| 153 | + current_progress = next( |
| 154 | + (progress for progress in lesson_progresses if progress.current_task_id), |
| 155 | + None, |
| 156 | + ) |
| 157 | + if current_progress is not None: |
| 158 | + current_task = current_progress.current_task |
| 159 | + return ( |
| 160 | + f"Модуль {current_progress.lesson.module.order}: {current_progress.lesson.module.title} / " |
| 161 | + f"Урок {current_progress.lesson.order}: {current_progress.lesson.title} / " |
| 162 | + f"Задание {current_task.order}: {current_task.title}" |
| 163 | + ) |
| 164 | + |
| 165 | + in_progress_lesson = next( |
| 166 | + (progress for progress in lesson_progresses if progress.status == ProgressStatus.IN_PROGRESS), |
| 167 | + None, |
| 168 | + ) |
| 169 | + if in_progress_lesson is not None: |
| 170 | + return ( |
| 171 | + f"Модуль {in_progress_lesson.lesson.module.order}: {in_progress_lesson.lesson.module.title} / " |
| 172 | + f"Урок {in_progress_lesson.lesson.order}: {in_progress_lesson.lesson.title}" |
| 173 | + ) |
| 174 | + |
| 175 | + return "Этап не определён" |
| 176 | + |
| 177 | + |
| 178 | +def _format_answer_cell(answer: UserTaskAnswer | None) -> str: |
| 179 | + if answer is None: |
| 180 | + return "" |
| 181 | + |
| 182 | + parts: list[str] = [] |
| 183 | + if answer.answer_text: |
| 184 | + parts.append(answer.answer_text.strip()) |
| 185 | + |
| 186 | + selected_options = [ |
| 187 | + selected.option.text.strip() |
| 188 | + for selected in answer.selected_options.all() |
| 189 | + if selected.option.text.strip() |
| 190 | + ] |
| 191 | + if selected_options: |
| 192 | + parts.append("\n".join(selected_options)) |
| 193 | + |
| 194 | + file_links = [attachment.file.link for attachment in answer.files.all()] |
| 195 | + if file_links: |
| 196 | + parts.append("\n".join(file_links)) |
| 197 | + |
| 198 | + return "\n".join(part for part in parts if part) |
| 199 | + |
| 200 | + |
| 201 | +def _build_headers(tasks: list[CourseTask]) -> list[str]: |
| 202 | + return [*BASE_HEADERS, *[_task_header(task) for task in tasks]] |
| 203 | + |
| 204 | + |
| 205 | +def build_course_results_workbook_bytes(course: Course) -> bytes: |
| 206 | + tasks = _export_tasks(course) |
| 207 | + course_progresses = _started_course_progresses(course) |
| 208 | + user_ids = [progress.user_id for progress in course_progresses] |
| 209 | + task_ids = [task.id for task in tasks] |
| 210 | + |
| 211 | + lesson_progress_map = _lesson_progresses_by_user(user_ids, course) |
| 212 | + answers_map = _answers_by_user_and_task(user_ids, task_ids) |
| 213 | + |
| 214 | + workbook = Workbook(write_only=True) |
| 215 | + worksheet = workbook.create_sheet(title="Результаты курса") |
| 216 | + worksheet.append([sanitize_excel_value(value) for value in _build_headers(tasks)]) |
| 217 | + |
| 218 | + for course_progress in course_progresses: |
| 219 | + lesson_progresses = lesson_progress_map.get(course_progress.user_id, []) |
| 220 | + row = [ |
| 221 | + _full_name(course_progress.user), |
| 222 | + course_progress.user.email, |
| 223 | + course_progress.percent, |
| 224 | + _format_msk_datetime(course_progress.started_at), |
| 225 | + course.title, |
| 226 | + _format_stage(course_progress, lesson_progresses), |
| 227 | + ] |
| 228 | + for task in tasks: |
| 229 | + row.append( |
| 230 | + _format_answer_cell( |
| 231 | + answers_map.get((course_progress.user_id, task.id)) |
| 232 | + ) |
| 233 | + ) |
| 234 | + worksheet.append([sanitize_excel_value(value) for value in row]) |
| 235 | + |
| 236 | + buffer = io.BytesIO() |
| 237 | + workbook.save(buffer) |
| 238 | + buffer.seek(0) |
| 239 | + return buffer.getvalue() |
| 240 | + |
| 241 | + |
| 242 | +def build_course_results_export_response(course: Course): |
| 243 | + binary_data = build_course_results_workbook_bytes(course) |
| 244 | + |
| 245 | + date_suffix = timezone.now().astimezone(MSK_TZ).strftime("%d.%m.%Y") |
| 246 | + base_name = f"course-results - {course.title} - {date_suffix}" |
| 247 | + return build_xlsx_download_response(binary_data, base_name=base_name) |
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