完善教育
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李鹏宇
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from . import exam_controller
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import json
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import logging
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from odoo import http, fields
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from odoo.http import request
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from odoo.exceptions import UserError, AccessError
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_logger = logging.getLogger(__name__)
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class ExamController(http.Controller):
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"""学生答题卡式考试页面控制器。"""
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def _check_paper_access(self, paper_id, states=None):
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"""校验当前登录用户是否为该答卷的学员本人。"""
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paper = request.env['yuthon.school.exam.paper'].sudo().browse(paper_id)
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if not paper.exists():
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raise http.NotFound()
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if paper.user_id.id != request.env.user.id:
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raise AccessError('您无权访问该答卷。')
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if states and paper.state not in states:
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raise UserError('当前答卷状态不允许该操作。')
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return paper
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# ------------------------------------------------------------------
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# 1. 开始考试：初始化答题记录并跳转到答题页面
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# ------------------------------------------------------------------
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@http.route('/exam/start/<int:paper_id>', type='http', auth='user')
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def exam_start(self, paper_id, **kw):
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paper = self._check_paper_access(paper_id, states=('pending', 'in_progress'))
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try:
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paper.with_user(request.env.user).action_start()
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except UserError as e:
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return request.render('college.exam_error_page', {'message': str(e)})
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return request.redirect('/exam/page/%s' % paper_id)
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# ------------------------------------------------------------------
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# 2. 答题主页面
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# ------------------------------------------------------------------
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@http.route('/exam/page/<int:paper_id>', type='http', auth='user', website=False)
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def exam_page(self, paper_id, **kw):
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paper = self._check_paper_access(paper_id)
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if paper.state == 'pending':
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# 未开始则自动开始
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try:
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paper.with_user(request.env.user).action_start()
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except UserError as e:
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return request.render('college.exam_error_page', {'message': str(e)})
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if paper.state not in ('in_progress', 'submitted', 'graded'):
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return request.render('college.exam_error_page', {
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'message': '该答卷当前状态为 %s，无法进入答题页面。' % dict(paper._fields['state'].selection).get(paper.state)
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})
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answers = paper.answer_ids.sorted(lambda a: (a.sequence, a.id))
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exam = paper.exam_id
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# 计算剩余时间（秒）
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remaining_seconds = 0
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if paper.start_time and exam.duration_minutes:
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end_dt = paper.start_time + fields.Datetime.timedelta(minutes=exam.duration_minutes)
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remaining_seconds = max(0, int((end_dt - fields.Datetime.now()).total_seconds()))
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values = {
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'paper': paper,
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'exam': exam,
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'course': paper.course_id,
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'chapters': paper.chapter_ids,
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'student': paper.student_id,
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'answers': answers,
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'answer_json': json.dumps([self._answer_to_dict(a) for a in answers]),
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'remaining_seconds': remaining_seconds,
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'duration_minutes': exam.duration_minutes or 0,
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'question_types': dict(request.env['yuthon.school.exam.question']._fields['question_type'].selection),
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}
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return request.render('college.exam_take_page', values)
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def _answer_to_dict(self, answer):
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"""将答题记录转为前端 JSON 可用的字典。"""
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q = answer.question_id
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return {
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'id': answer.id,
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'sequence': answer.sequence or 0,
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'question_type': answer.question_type,
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'question_text': answer.question_text or '',
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'question_text_short': answer.question_text_short or '',
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'max_score': answer.max_score,
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'options': [{
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'id': opt.id,
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'label': opt.label,
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'content': opt.content or '',
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'text': opt.name or '%s. %s' % (opt.label, opt._strip_html(opt.content or '')),
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} for opt in q.option_ids.sorted(lambda o: (o.sequence, o.id))],
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# 当前作答
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'selected_option_id': answer.selected_option_id.id or False,
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'selected_option_ids': answer.selected_option_ids.ids,
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'answer_choice': answer.answer_choice or False,
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'answer_text': answer.answer_text or '',
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'is_answered': bool(
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answer.selected_option_id or
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answer.selected_option_ids or
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answer.answer_choice or
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(answer.answer_text and answer._strip_html(answer.answer_text))
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),
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}
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# ------------------------------------------------------------------
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# 3. AJAX 保存单题答案
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# ------------------------------------------------------------------
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@http.route('/exam/save', type='json', auth='user', methods=['POST'])
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def exam_save_answer(self, **kw):
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# 注意：type='json' 路由的参数在 request.params（JSON-RPC 内层 params），
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# 而非 request.jsonrequest（那是 envelope {jsonrpc, method, params, id}）。
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params = request.params or {}
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paper_id = params.get('paper_id')
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answer_id = params.get('answer_id')
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data = params.get('data', {})
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paper = self._check_paper_access(paper_id, states=('in_progress',))
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answer = request.env['yuthon.school.exam.answer'].sudo().browse(int(answer_id))
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if not answer.exists() or answer.paper_id.id != paper.id:
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return {'status': 'error', 'message': '题目不属于当前答卷。'}
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qtype = answer.question_type
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vals = {}
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if qtype == 'single_choice':
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vals['selected_option_id'] = int(data.get('selected_option_id') or 0) or False
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if vals['selected_option_id']:
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vals['selected_option_ids'] = [(6, 0, [vals['selected_option_id']])]
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else:
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vals['selected_option_ids'] = [(5,)]
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elif qtype == 'multiple_choice':
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opt_ids = [int(x) for x in data.get('selected_option_ids', []) if x]
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vals['selected_option_ids'] = [(6, 0, opt_ids)]
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vals['selected_option_id'] = opt_ids[0] if opt_ids else False
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elif qtype == 'true_false':
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vals['answer_choice'] = data.get('answer_choice') or False
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elif qtype in ('fill_blank', 'essay'):
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vals['answer_text'] = data.get('answer_text') or False
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answer.write(vals)
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return {
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'status': 'ok',
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'is_answered': bool(
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answer.selected_option_id or
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answer.selected_option_ids or
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answer.answer_choice or
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(answer.answer_text and answer._strip_html(answer.answer_text))
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),
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}
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# ------------------------------------------------------------------
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# 4. AJAX 提交整卷
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# ------------------------------------------------------------------
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@http.route('/exam/submit', type='json', auth='user', methods=['POST'])
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def exam_submit(self, **kw):
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params = request.params or {}
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paper_id = params.get('paper_id')
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paper = self._check_paper_access(paper_id, states=('in_progress',))
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try:
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paper.with_user(request.env.user).action_submit()
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except UserError as e:
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return {'status': 'error', 'message': str(e)}
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return {
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'status': 'ok',
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'redirect': '/exam/result/%s' % paper.id,
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}
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# ------------------------------------------------------------------
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# 5. 结果页面
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# ------------------------------------------------------------------
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@http.route('/exam/result/<int:paper_id>', type='http', auth='user', website=False)
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def exam_result(self, paper_id, **kw):
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paper = self._check_paper_access(paper_id)
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if paper.state not in ('submitted', 'graded'):
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return request.redirect('/exam/page/%s' % paper_id)
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answers = paper.answer_ids.sorted(lambda a: (a.sequence, a.id))
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values = {
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'paper': paper,
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'exam': paper.exam_id,
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'answers': answers,
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'question_types': dict(request.env['yuthon.school.exam.question']._fields['question_type'].selection),
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}
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return request.render('college.exam_result_page', values)
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