320 lines
15 KiB
Python
320 lines
15 KiB
Python
"""转课/转赠路由"""
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from datetime import date
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from flask import render_template, request, redirect, url_for, flash, session
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from models import db, Student, Course, Class_, Teacher, StudentAccount, TransferRecord, ClassStudent
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from utils import login_required, log_operation, permission_required, export_excel, parse_date
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import business_rules as rules
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def register_routes(app):
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@app.route('/transfers', endpoint='transfer_list')
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@login_required
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@permission_required('transfer_view')
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def transfer_list():
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records = TransferRecord.query.order_by(TransferRecord.created_at.desc()).all()
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# 获取关联信息用于显示
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students = {s.id: s for s in Student.query.all()}
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courses = {c.id: c for c in Course.query.all()}
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classes = {c.id: c for c in Class_.query.all()}
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teachers = {t.id: t for t in Teacher.query.all()}
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return render_template('transfer_list.html', records=records,
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students=students, courses=courses,
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classes=classes, teachers=teachers)
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@app.route('/transfers/add', methods=['GET', 'POST'], endpoint='transfer_add')
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@login_required
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@permission_required('transfer_add')
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def transfer_add():
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if request.method == 'POST':
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from_student_id = int(request.form.get('from_student_id'))
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from_course_id = int(request.form.get('from_course_id'))
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transfer_type = request.form.get('transfer_type', 'transfer')
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transfer_class_type = request.form.get('transfer_class_type', 'class_transfer')
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remark = request.form.get('remark', '')
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from_account = rules.lock_student_account(from_student_id, from_course_id)
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if not from_account:
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flash('未找到转出课时账户', 'danger')
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return redirect(url_for('transfer_add'))
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normal_avail = int(float(from_account.normal_hours or 0))
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current_unit_price = float(from_account.unit_price or 0)
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# 班级转课 - 无单价变更
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if transfer_class_type == 'class_transfer':
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to_class_id = request.form.get('to_class_id')
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to_teacher_id = request.form.get('to_teacher_id')
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price_change_type = request.form.get('price_change_type', 'no_change')
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if not to_class_id:
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flash('请选择目标班级', 'danger')
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return redirect(url_for('transfer_add'))
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to_class_id = int(to_class_id)
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to_teacher_id = int(to_teacher_id) if to_teacher_id else None
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# 获取原班级和老师信息
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from_class_id = from_account.from_class_id if hasattr(from_account, 'from_class_id') and from_account.from_class_id else None
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from_teacher_id = from_account.from_teacher_id if hasattr(from_account, 'from_teacher_id') and from_account.from_teacher_id else None
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# 更新班级学员关系
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if from_class_id:
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old_cs = ClassStudent.query.filter_by(
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student_id=from_student_id, class_id=from_class_id, status=1
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).first()
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if old_cs:
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old_cs.status = 0
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# 添加新的班级学员关系
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existing_cs = ClassStudent.query.filter_by(
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student_id=from_student_id, class_id=to_class_id, status=1
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).first()
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if not existing_cs:
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cs = ClassStudent(
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student_id=from_student_id,
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class_id=to_class_id,
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join_date=date.today(),
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status=1
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)
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db.session.add(cs)
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new_unit_price = current_unit_price
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price_change_reason = ''
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effective_date = None
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# 有单价变更
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if price_change_type == 'price_changed':
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new_unit_price = float(request.form.get('new_unit_price', 0))
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price_change_reason = request.form.get('price_change_reason', '')
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effective_date_str = request.form.get('effective_date', '')
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effective_date = parse_date(effective_date_str) if effective_date_str else date.today()
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if not new_unit_price or new_unit_price <= 0:
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flash('有单价变更时，新单价必须大于0', 'danger')
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return redirect(url_for('transfer_add'))
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if not price_change_reason:
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flash('有单价变更时，必须填写变更原因', 'danger')
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return redirect(url_for('transfer_add'))
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# 更新账户单价
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from_account.unit_price = new_unit_price
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from_account.original_price_per_lesson = new_unit_price
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# 记录转课
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record = TransferRecord(
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from_student_id=from_student_id,
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from_course_id=from_course_id,
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to_course_id=from_course_id, # 同课程
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from_class_id=from_class_id,
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to_class_id=to_class_id,
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from_teacher_id=from_teacher_id,
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to_teacher_id=to_teacher_id,
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transfer_type='class_transfer',
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transfer_class_type='class_transfer',
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price_change_type=price_change_type,
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transfer_hours=normal_avail, # 保留全部课时
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original_unit_price=current_unit_price,
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new_unit_price=new_unit_price,
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transfer_amount=normal_avail * current_unit_price,
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price_change_reason=price_change_reason,
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effective_date=effective_date,
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operator_id=session.get('user_id'),
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remark=remark,
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)
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db.session.add(record)
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db.session.commit()
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change_desc = f'班级:{from_class_id or "无"}→{to_class_id}'
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if price_change_type == 'price_changed':
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change_desc += f', 单价:{current_unit_price}→{new_unit_price}'
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log_operation('班级转课(有单价变更)', f'学员{from_student_id} {change_desc}, 原因:{price_change_reason}')
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flash(f'转课成功(有单价变更)！单价已更新为{new_unit_price}元/课时', 'success')
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else:
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log_operation('班级转课(无单价变更)', f'学员{from_student_id} {change_desc}')
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flash('转课成功(无单价变更)！班级和老师已更新，课时保持不变', 'success')
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# 转赠 - 给其他学员
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elif transfer_type == 'gift':
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transfer_hours = rules.normalize_consumption_hours(
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request.form.get('transfer_hours', 1)
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)
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to_student_id = int(request.form.get('to_student_id'))
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if transfer_hours > normal_avail:
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flash(
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f'赠课不可转赠。仅可转赠正课，当前正课余额{normal_avail}课时',
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'danger',
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)
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return redirect(url_for('transfer_add'))
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from_account.normal_hours = normal_avail - transfer_hours
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rules.update_account_unit_price(from_account)
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rules.sync_account_snapshots(from_account)
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to_account = StudentAccount.query.filter_by(
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student_id=to_student_id, course_id=from_course_id,
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).first()
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if not to_account:
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to_account = StudentAccount(
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student_id=to_student_id, course_id=from_course_id,
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)
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db.session.add(to_account)
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db.session.flush()
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to_account.normal_hours = int(float(to_account.normal_hours or 0)) + transfer_hours
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rules.update_account_unit_price(to_account)
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rules.sync_account_snapshots(to_account)
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record = TransferRecord(
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from_student_id=from_student_id,
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to_student_id=to_student_id,
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from_course_id=from_course_id,
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to_course_id=from_course_id,
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transfer_type='gift',
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transfer_class_type='gift',
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transfer_hours=transfer_hours,
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operator_id=session.get('user_id'),
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remark=remark,
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)
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db.session.add(record)
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db.session.commit()
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log_operation(
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'转赠',
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f'学员{from_student_id} 转赠正课{transfer_hours}课时给学员{to_student_id}',
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)
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flash('转赠成功（仅正课）', 'success')
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# 升阶 - 换课程
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elif transfer_type == 'upgrade':
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to_course_id = int(request.form.get('to_course_id'))
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from_course = db.session.get(Course, from_course_id)
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to_course = db.session.get(Course, to_course_id)
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from_unit = rules.account_effective_unit_price(from_account, from_course)
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to_unit = rules.account_effective_unit_price(
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StudentAccount.query.filter_by(
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student_id=from_student_id, course_id=to_course_id,
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).first() or from_account, to_course,
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) or float(to_course.price_per_hour or 0) if to_course else 0
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if to_unit <= 0 and to_course:
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to_unit = float(to_course.price_per_hour or 0)
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transfer_normal = normal_avail
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to_hours = rules.calc_transfer_to_hours(
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transfer_normal, from_unit, to_unit,
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)
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transfer_amount = transfer_normal * from_unit
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from_account.normal_hours = 0
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rules.update_account_unit_price(from_account)
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rules.sync_account_snapshots(from_account)
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to_account = StudentAccount.query.filter_by(
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student_id=from_student_id, course_id=to_course_id,
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).first()
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if not to_account:
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to_account = StudentAccount(
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student_id=from_student_id, course_id=to_course_id,
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)
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db.session.add(to_account)
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db.session.flush()
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to_account.normal_hours = int(float(to_account.normal_hours or 0)) + to_hours
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rules.update_account_unit_price(to_account)
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rules.sync_account_snapshots(to_account)
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record = TransferRecord(
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from_student_id=from_student_id,
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from_course_id=from_course_id,
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to_course_id=to_course_id,
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transfer_type='upgrade',
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transfer_class_type='upgrade',
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transfer_hours=transfer_normal,
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transfer_amount=transfer_amount,
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operator_id=session.get('user_id'),
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remark=remark or '升阶结转',
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)
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db.session.add(record)
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db.session.commit()
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log_operation(
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'升阶',
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f'学员{from_student_id} 正课{transfer_normal}课时→课程{to_course_id} 转入{to_hours}课时',
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)
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flash(f'升阶成功！100%正课结转，转入{to_hours}课时', 'success')
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# 普通转课 - 换课程课时
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else:
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to_course_id = int(request.form.get('to_course_id'))
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transfer_hours = rules.normalize_consumption_hours(
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request.form.get('transfer_hours', 1)
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)
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from_course = db.session.get(Course, from_course_id)
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to_course = db.session.get(Course, to_course_id)
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from_unit = rules.account_effective_unit_price(from_account, from_course)
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to_account_pre = StudentAccount.query.filter_by(
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student_id=from_student_id, course_id=to_course_id,
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).first()
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to_unit = rules.account_effective_unit_price(to_account_pre, to_course)
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if to_unit <= 0 and to_course:
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to_unit = float(to_course.price_per_hour or 0)
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if transfer_hours > normal_avail:
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flash(
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f'仅可转出正课。当前正课{normal_avail}课时，赠课{int(float(from_account.gifted_hours or 0))}课时不可转课',
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'danger',
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)
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return redirect(url_for('transfer_add'))
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transfer_amount = transfer_hours * from_unit
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to_hours = rules.calc_transfer_to_hours(
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transfer_hours, from_unit, to_unit,
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)
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from_account.normal_hours = normal_avail - transfer_hours
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rules.update_account_unit_price(from_account)
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rules.sync_account_snapshots(from_account)
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to_account = StudentAccount.query.filter_by(
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student_id=from_student_id, course_id=to_course_id,
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).first()
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if not to_account:
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to_account = StudentAccount(
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student_id=from_student_id, course_id=to_course_id,
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)
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db.session.add(to_account)
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db.session.flush()
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to_account.normal_hours = int(float(to_account.normal_hours or 0)) + to_hours
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rules.update_account_unit_price(to_account)
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rules.sync_account_snapshots(to_account)
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record = TransferRecord(
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from_student_id=from_student_id,
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from_course_id=from_course_id,
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to_course_id=to_course_id,
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transfer_type='transfer',
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transfer_class_type='course_transfer',
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transfer_hours=transfer_hours,
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transfer_amount=transfer_amount,
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operator_id=session.get('user_id'),
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remark=remark,
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)
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db.session.add(record)
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db.session.commit()
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log_operation(
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'转课',
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f'学员{from_student_id} 转出正课{transfer_hours}课时→转入{to_hours}课时',
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)
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flash(f'转课成功！转入{to_hours}课时（仅正课参与换算）', 'success')
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return redirect(url_for('transfer_list'))
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students = Student.query.filter_by(status=1).all()
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courses = Course.query.filter_by(status=1).all()
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classes = Class_.query.filter_by(status=1).all()
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teachers = Teacher.query.filter_by(status=1).all()
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return render_template('transfer_form.html', students=students, courses=courses,
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classes=classes, teachers=teachers)
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@app.route('/transfers/export', endpoint='transfer_export')
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@login_required
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@permission_required('transfer_export')
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def transfer_export():
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from utils import export_transfers as do_export
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return do_export()
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