743 lines
27 KiB
Python
743 lines
27 KiB
Python
from flask import Blueprint, render_template, request, redirect, url_for, flash, current_app, g, jsonify
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from app.models.book import Book, Category
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from app.models.user import db
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from app.utils.auth import login_required, admin_required
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from flask_login import current_user, login_required
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import os
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from werkzeug.utils import secure_filename
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import datetime
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import pandas as pd
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import uuid
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book_bp = Blueprint('book', __name__)
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@book_bp.route('/admin/list')
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@login_required
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@admin_required
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def admin_book_list():
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print(f"DEBUG: admin_book_list 函数被调用，用户={current_user.username}，认证状态={current_user.is_authenticated}")
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page = request.args.get('page', 1, type=int)
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per_page = request.args.get('per_page', 10, type=int)
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# 只显示状态为1的图书（未下架的图书）
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query = Book.query.filter_by(status=1)
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# 搜索功能
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search = request.args.get('search', '')
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if search:
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query = query.filter(
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(Book.title.contains(search)) |
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(Book.author.contains(search)) |
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(Book.isbn.contains(search))
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)
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# 分类筛选
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category_id = request.args.get('category_id', type=int)
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if category_id:
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query = query.filter_by(category_id=category_id)
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# 排序
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sort = request.args.get('sort', 'id')
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order = request.args.get('order', 'desc')
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if order == 'desc':
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query = query.order_by(getattr(Book, sort).desc())
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else:
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query = query.order_by(getattr(Book, sort))
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pagination = query.paginate(page=page, per_page=per_page)
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books = pagination.items
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# 获取所有分类供筛选使用
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categories = Category.query.all()
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return render_template('book/list.html',
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books=books,
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pagination=pagination,
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search=search,
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categories=categories,
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category_id=category_id,
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sort=sort,
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order=order,
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current_user=g.user,
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is_admin_view=True) # 指明这是管理视图
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# 图书列表页面
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@book_bp.route('/list')
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@login_required
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def book_list():
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print("访问图书列表页面") # 调试输出
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page = request.args.get('page', 1, type=int)
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per_page = request.args.get('per_page', 10, type=int)
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# 只显示状态为1的图书（未下架的图书）
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query = Book.query.filter_by(status=1)
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# 搜索功能
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search = request.args.get('search', '')
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if search:
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query = query.filter(
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(Book.title.contains(search)) |
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(Book.author.contains(search)) |
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(Book.isbn.contains(search))
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)
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# 分类筛选
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category_id = request.args.get('category_id', type=int)
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if category_id:
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query = query.filter_by(category_id=category_id)
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# 排序
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sort = request.args.get('sort', 'id')
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order = request.args.get('order', 'desc')
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if order == 'desc':
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query = query.order_by(getattr(Book, sort).desc())
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else:
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query = query.order_by(getattr(Book, sort))
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pagination = query.paginate(page=page, per_page=per_page)
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books = pagination.items
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# 获取所有分类供筛选使用
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categories = Category.query.all()
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return render_template('book/list.html',
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books=books,
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pagination=pagination,
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search=search,
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categories=categories,
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category_id=category_id,
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sort=sort,
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order=order,
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current_user=g.user)
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# 图书详情页面
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@book_bp.route('/detail/<int:book_id>')
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@login_required
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def book_detail(book_id):
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book = Book.query.get_or_404(book_id)
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# 添加当前时间用于判断借阅是否逾期
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now = datetime.datetime.now()
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# 如果用户是管理员，预先查询并排序借阅记录
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borrow_records = []
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# 防御性编程：确保 g.user 存在且有 role_id 属性
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if hasattr(g, 'user') and g.user is not None and hasattr(g.user, 'role_id') and g.user.role_id == 1:
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from app.models.borrow import BorrowRecord
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borrow_records = BorrowRecord.query.filter_by(book_id=book_id).order_by(BorrowRecord.borrow_date.desc()).limit(
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10).all()
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return render_template(
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'book/detail.html',
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book=book,
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current_user=current_user, # 使用 flask_login 的 current_user 而不是 g.user
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borrow_records=borrow_records,
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now=now
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)
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# 添加图书页面
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@book_bp.route('/add', methods=['GET', 'POST'])
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@login_required
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@admin_required
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def add_book():
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if request.method == 'POST':
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title = request.form.get('title')
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author = request.form.get('author')
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publisher = request.form.get('publisher')
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category_id = request.form.get('category_id')
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tags = request.form.get('tags')
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isbn = request.form.get('isbn')
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publish_year = request.form.get('publish_year')
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description = request.form.get('description')
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stock = request.form.get('stock', type=int, default=0)
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price = request.form.get('price')
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# 表单验证
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errors = []
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if not title:
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errors.append('书名不能为空')
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if not author:
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errors.append('作者不能为空')
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# 检查ISBN是否已存在(如果提供了ISBN)
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if isbn:
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existing_book = Book.query.filter_by(isbn=isbn).first()
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if existing_book:
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errors.append(f'ISBN "{isbn}" 已存在，请检查ISBN或查找现有图书')
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if errors:
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for error in errors:
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flash(error, 'danger')
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categories = Category.query.all()
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# 保留已填写的表单数据
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book_data = {
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'title': title,
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'author': author,
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'publisher': publisher,
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'category_id': category_id,
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'tags': tags,
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'isbn': isbn,
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'publish_year': publish_year,
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'description': description,
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'stock': stock,
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'price': price
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}
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return render_template('book/add.html', categories=categories,
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current_user=g.user, book=book_data)
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# 处理封面图片上传
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cover_url = None
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if 'cover' in request.files:
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cover_file = request.files['cover']
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if cover_file and cover_file.filename != '':
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try:
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# 更清晰的文件命名
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original_filename = secure_filename(cover_file.filename)
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# 保留原始文件扩展名
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_, ext = os.path.splitext(original_filename)
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if not ext:
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ext = '.jpg' # 默认扩展名
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filename = f"{uuid.uuid4()}{ext}"
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upload_folder = os.path.join(current_app.static_folder, 'covers')
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# 确保上传目录存在
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if not os.path.exists(upload_folder):
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os.makedirs(upload_folder)
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file_path = os.path.join(upload_folder, filename)
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cover_file.save(file_path)
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cover_url = f'/static/covers/{filename}'
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except Exception as e:
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current_app.logger.error(f"封面上传失败: {str(e)}")
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flash(f"封面上传失败: {str(e)}", 'warning')
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try:
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# 创建新图书
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book = Book(
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title=title,
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author=author,
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publisher=publisher,
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category_id=category_id,
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tags=tags,
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isbn=isbn,
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publish_year=publish_year,
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description=description,
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cover_url=cover_url,
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stock=stock,
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price=price,
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status=1,
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created_at=datetime.datetime.now(),
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updated_at=datetime.datetime.now()
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)
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db.session.add(book)
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# 先提交以获取book的id
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db.session.commit()
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# 记录库存日志 - 在获取 book.id 后
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if stock and int(stock) > 0:
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from app.models.inventory import InventoryLog
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inventory_log = InventoryLog(
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book_id=book.id,
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change_type='入库',
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change_amount=stock,
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after_stock=stock,
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operator_id=g.user.id,
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remark='新书入库',
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changed_at=datetime.datetime.now()
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)
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db.session.add(inventory_log)
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db.session.commit()
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flash(f'《{title}》添加成功', 'success')
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return redirect(url_for('book.book_list'))
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except Exception as e:
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db.session.rollback()
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error_msg = str(e)
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# 记录详细错误日志
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current_app.logger.error(f"添加图书失败: {error_msg}")
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flash(f'添加图书失败: {error_msg}', 'danger')
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categories = Category.query.all()
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# 保留已填写的表单数据
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book_data = {
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'title': title,
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'author': author,
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'publisher': publisher,
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'category_id': category_id,
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'tags': tags,
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'isbn': isbn,
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'publish_year': publish_year,
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'description': description,
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'stock': stock,
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'price': price
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}
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return render_template('book/add.html', categories=categories,
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current_user=g.user, book=book_data)
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categories = Category.query.all()
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return render_template('book/add.html', categories=categories, current_user=g.user)
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# 编辑图书
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@book_bp.route('/edit/<int:book_id>', methods=['GET', 'POST'])
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@login_required
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@admin_required
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def edit_book(book_id):
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book = Book.query.get_or_404(book_id)
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if request.method == 'POST':
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# 获取表单数据
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title = request.form.get('title')
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author = request.form.get('author')
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publisher = request.form.get('publisher')
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category_id = request.form.get('category_id')
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tags = request.form.get('tags')
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isbn = request.form.get('isbn')
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publish_year = request.form.get('publish_year')
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description = request.form.get('description')
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price = request.form.get('price')
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status = request.form.get('status', type=int)
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# 基本验证
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if not title or not author:
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flash('书名和作者不能为空', 'danger')
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categories = Category.query.all()
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return render_template('book/edit.html', book=book, categories=categories, current_user=g.user)
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# ISBN验证
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if isbn and isbn.strip(): # 确保ISBN不是空字符串
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# 移除连字符和空格
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clean_isbn = isbn.replace('-', '').replace(' ', '')
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# 长度检查
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if len(clean_isbn) != 10 and len(clean_isbn) != 13:
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flash('ISBN必须是10位或13位', 'danger')
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categories = Category.query.all()
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return render_template('book/edit.html', book=book, categories=categories, current_user=g.user)
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# ISBN-10验证
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if len(clean_isbn) == 10:
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# 检查前9位是否为数字
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if not clean_isbn[:9].isdigit():
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flash('ISBN-10的前9位必须是数字', 'danger')
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categories = Category.query.all()
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return render_template('book/edit.html', book=book, categories=categories, current_user=g.user)
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# 检查最后一位是否为数字或'X'
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if not (clean_isbn[9].isdigit() or clean_isbn[9].upper() == 'X'):
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flash('ISBN-10的最后一位必须是数字或X', 'danger')
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categories = Category.query.all()
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return render_template('book/edit.html', book=book, categories=categories, current_user=g.user)
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# 校验和验证
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sum = 0
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for i in range(9):
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sum += int(clean_isbn[i]) * (10 - i)
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check_digit = 10 if clean_isbn[9].upper() == 'X' else int(clean_isbn[9])
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sum += check_digit
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if sum % 11 != 0:
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flash('ISBN-10校验和无效', 'danger')
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categories = Category.query.all()
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return render_template('book/edit.html', book=book, categories=categories, current_user=g.user)
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# ISBN-13验证
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if len(clean_isbn) == 13:
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# 检查是否全是数字
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if not clean_isbn.isdigit():
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flash('ISBN-13必须全是数字', 'danger')
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categories = Category.query.all()
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return render_template('book/edit.html', book=book, categories=categories, current_user=g.user)
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# 校验和验证
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sum = 0
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for i in range(12):
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sum += int(clean_isbn[i]) * (1 if i % 2 == 0 else 3)
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check_digit = (10 - (sum % 10)) % 10
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if check_digit != int(clean_isbn[12]):
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flash('ISBN-13校验和无效', 'danger')
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categories = Category.query.all()
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return render_template('book/edit.html', book=book, categories=categories, current_user=g.user)
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|
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# 处理库存变更
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new_stock = request.form.get('stock', type=int) or 0 # 默认为0而非None
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if new_stock != book.stock:
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from app.models.inventory import InventoryLog
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change_amount = new_stock - book.stock
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change_type = '入库' if change_amount > 0 else '出库'
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inventory_log = InventoryLog(
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book_id=book.id,
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change_type=change_type,
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change_amount=abs(change_amount),
|
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after_stock=new_stock,
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operator_id=g.user.id,
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remark=f'管理员编辑图书库存 - {book.title}',
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changed_at=datetime.datetime.now()
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)
|
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db.session.add(inventory_log)
|
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book.stock = new_stock
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|
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# 处理封面图片上传
|
||
if 'cover' in request.files:
|
||
cover_file = request.files['cover']
|
||
if cover_file and cover_file.filename != '':
|
||
filename = secure_filename(f"{uuid.uuid4()}_{cover_file.filename}")
|
||
upload_folder = os.path.join(current_app.static_folder, 'covers')
|
||
|
||
# 确保上传目录存在
|
||
if not os.path.exists(upload_folder):
|
||
os.makedirs(upload_folder)
|
||
|
||
file_path = os.path.join(upload_folder, filename)
|
||
cover_file.save(file_path)
|
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book.cover_url = f'/static/covers/{filename}'
|
||
|
||
# 更新图书信息
|
||
book.title = title
|
||
book.author = author
|
||
book.publisher = publisher
|
||
book.category_id = category_id
|
||
book.tags = tags
|
||
book.isbn = isbn
|
||
book.publish_year = publish_year
|
||
book.description = description
|
||
book.price = price
|
||
book.status = status
|
||
book.updated_at = datetime.datetime.now()
|
||
|
||
try:
|
||
db.session.commit()
|
||
flash('图书信息更新成功', 'success')
|
||
return redirect(url_for('book.book_list'))
|
||
except Exception as e:
|
||
db.session.rollback()
|
||
flash(f'保存失败: {str(e)}', 'danger')
|
||
categories = Category.query.all()
|
||
return render_template('book/edit.html', book=book, categories=categories, current_user=g.user)
|
||
|
||
# GET 请求
|
||
categories = Category.query.all()
|
||
return render_template('book/edit.html', book=book, categories=categories, current_user=g.user)
|
||
|
||
|
||
# 删除图书
|
||
@book_bp.route('/delete/<int:book_id>', methods=['POST'])
|
||
@login_required
|
||
@admin_required
|
||
def delete_book(book_id):
|
||
book = Book.query.get_or_404(book_id)
|
||
|
||
# 检查该书是否有借阅记录
|
||
from app.models.borrow import BorrowRecord
|
||
active_borrows = BorrowRecord.query.filter_by(book_id=book_id, status=1).count()
|
||
|
||
if active_borrows > 0:
|
||
return jsonify({'success': False, 'message': '该图书有未归还的借阅记录，无法删除'})
|
||
|
||
# 考虑软删除而不是物理删除
|
||
book.status = 0 # 0表示已删除/下架
|
||
book.updated_at = datetime.datetime.now()
|
||
db.session.commit()
|
||
|
||
return jsonify({'success': True, 'message': '图书已成功下架'})
|
||
|
||
|
||
# 图书分类管理
|
||
@book_bp.route('/categories', methods=['GET'])
|
||
@login_required
|
||
@admin_required
|
||
def category_list():
|
||
categories = Category.query.all()
|
||
return render_template('book/categories.html', categories=categories, current_user=g.user)
|
||
|
||
|
||
# 添加分类
|
||
@book_bp.route('/categories/add', methods=['POST'])
|
||
@login_required
|
||
@admin_required
|
||
def add_category():
|
||
name = request.form.get('name')
|
||
parent_id = request.form.get('parent_id') or None
|
||
sort = request.form.get('sort', 0, type=int)
|
||
|
||
if not name:
|
||
return jsonify({'success': False, 'message': '分类名称不能为空'})
|
||
|
||
category = Category(name=name, parent_id=parent_id, sort=sort)
|
||
db.session.add(category)
|
||
db.session.commit()
|
||
|
||
return jsonify({'success': True, 'message': '分类添加成功', 'id': category.id, 'name': category.name})
|
||
|
||
|
||
# 编辑分类
|
||
@book_bp.route('/categories/edit/<int:category_id>', methods=['POST'])
|
||
@login_required
|
||
@admin_required
|
||
def edit_category(category_id):
|
||
category = Category.query.get_or_404(category_id)
|
||
|
||
name = request.form.get('name')
|
||
parent_id = request.form.get('parent_id') or None
|
||
sort = request.form.get('sort', 0, type=int)
|
||
|
||
if not name:
|
||
return jsonify({'success': False, 'message': '分类名称不能为空'})
|
||
|
||
category.name = name
|
||
category.parent_id = parent_id
|
||
category.sort = sort
|
||
db.session.commit()
|
||
|
||
return jsonify({'success': True, 'message': '分类更新成功'})
|
||
|
||
|
||
# 删除分类
|
||
@book_bp.route('/categories/delete/<int:category_id>', methods=['POST'])
|
||
@login_required
|
||
@admin_required
|
||
def delete_category(category_id):
|
||
category = Category.query.get_or_404(category_id)
|
||
|
||
# 检查是否有书籍使用此分类
|
||
books_count = Book.query.filter_by(category_id=category_id).count()
|
||
if books_count > 0:
|
||
return jsonify({'success': False, 'message': f'该分类下有{books_count}本图书，无法删除'})
|
||
|
||
# 检查是否有子分类
|
||
children_count = Category.query.filter_by(parent_id=category_id).count()
|
||
if children_count > 0:
|
||
return jsonify({'success': False, 'message': f'该分类下有{children_count}个子分类，无法删除'})
|
||
|
||
db.session.delete(category)
|
||
db.session.commit()
|
||
|
||
return jsonify({'success': True, 'message': '分类删除成功'})
|
||
|
||
|
||
# 批量导入图书
|
||
@book_bp.route('/import', methods=['GET', 'POST'])
|
||
@login_required
|
||
@admin_required
|
||
def import_books():
|
||
if request.method == 'POST':
|
||
if 'file' not in request.files:
|
||
flash('未选择文件', 'danger')
|
||
return redirect(request.url)
|
||
|
||
file = request.files['file']
|
||
if file.filename == '':
|
||
flash('未选择文件', 'danger')
|
||
return redirect(request.url)
|
||
|
||
if file and file.filename.endswith(('.xlsx', '.xls')):
|
||
try:
|
||
# 读取Excel文件
|
||
df = pd.read_excel(file)
|
||
success_count = 0
|
||
error_count = 0
|
||
errors = []
|
||
|
||
# 处理每一行数据
|
||
for index, row in df.iterrows():
|
||
try:
|
||
# 检查必填字段
|
||
if pd.isna(row.get('title')) or pd.isna(row.get('author')):
|
||
errors.append(f'第{index + 2}行: 书名或作者为空')
|
||
error_count += 1
|
||
continue
|
||
|
||
# 检查ISBN是否已存在
|
||
isbn = row.get('isbn')
|
||
if isbn and not pd.isna(isbn) and Book.query.filter_by(isbn=str(isbn)).first():
|
||
errors.append(f'第{index + 2}行: ISBN {isbn} 已存在')
|
||
error_count += 1
|
||
continue
|
||
|
||
# 创建新书籍记录
|
||
book = Book(
|
||
title=row.get('title'),
|
||
author=row.get('author'),
|
||
publisher=row.get('publisher') if not pd.isna(row.get('publisher')) else None,
|
||
category_id=row.get('category_id') if not pd.isna(row.get('category_id')) else None,
|
||
tags=row.get('tags') if not pd.isna(row.get('tags')) else None,
|
||
isbn=str(row.get('isbn')) if not pd.isna(row.get('isbn')) else None,
|
||
publish_year=str(row.get('publish_year')) if not pd.isna(row.get('publish_year')) else None,
|
||
description=row.get('description') if not pd.isna(row.get('description')) else None,
|
||
cover_url=row.get('cover_url') if not pd.isna(row.get('cover_url')) else None,
|
||
stock=int(row.get('stock')) if not pd.isna(row.get('stock')) else 0,
|
||
price=float(row.get('price')) if not pd.isna(row.get('price')) else None,
|
||
status=1,
|
||
created_at=datetime.datetime.now(),
|
||
updated_at=datetime.datetime.now()
|
||
)
|
||
|
||
db.session.add(book)
|
||
# 提交以获取book的id
|
||
db.session.flush()
|
||
|
||
# 创建库存日志
|
||
if book.stock > 0:
|
||
from app.models.inventory import InventoryLog
|
||
inventory_log = InventoryLog(
|
||
book_id=book.id,
|
||
change_type='入库',
|
||
change_amount=book.stock,
|
||
after_stock=book.stock,
|
||
operator_id=g.user.id,
|
||
remark='批量导入图书',
|
||
changed_at=datetime.datetime.now()
|
||
)
|
||
db.session.add(inventory_log)
|
||
|
||
success_count += 1
|
||
except Exception as e:
|
||
errors.append(f'第{index + 2}行: {str(e)}')
|
||
error_count += 1
|
||
|
||
db.session.commit()
|
||
flash(f'导入完成: 成功{success_count}条，失败{error_count}条', 'info')
|
||
if errors:
|
||
flash('<br>'.join(errors[:10]) + (f'<br>...等共{len(errors)}个错误' if len(errors) > 10 else ''),
|
||
'warning')
|
||
|
||
return redirect(url_for('book.book_list'))
|
||
|
||
except Exception as e:
|
||
flash(f'导入失败: {str(e)}', 'danger')
|
||
return redirect(request.url)
|
||
else:
|
||
flash('只支持Excel文件(.xlsx, .xls)', 'danger')
|
||
return redirect(request.url)
|
||
|
||
return render_template('book/import.html', current_user=g.user)
|
||
|
||
|
||
# 导出图书
|
||
@book_bp.route('/export')
|
||
@login_required
|
||
@admin_required
|
||
def export_books():
|
||
# 获取查询参数
|
||
search = request.args.get('search', '')
|
||
category_id = request.args.get('category_id', type=int)
|
||
|
||
query = Book.query
|
||
|
||
if search:
|
||
query = query.filter(
|
||
(Book.title.contains(search)) |
|
||
(Book.author.contains(search)) |
|
||
(Book.isbn.contains(search))
|
||
)
|
||
|
||
if category_id:
|
||
query = query.filter_by(category_id=category_id)
|
||
|
||
books = query.all()
|
||
|
||
# 创建DataFrame
|
||
data = []
|
||
for book in books:
|
||
category_name = book.category.name if book.category else ""
|
||
data.append({
|
||
'id': book.id,
|
||
'title': book.title,
|
||
'author': book.author,
|
||
'publisher': book.publisher,
|
||
'category': category_name,
|
||
'tags': book.tags,
|
||
'isbn': book.isbn,
|
||
'publish_year': book.publish_year,
|
||
'description': book.description,
|
||
'stock': book.stock,
|
||
'price': book.price,
|
||
'status': '上架' if book.status == 1 else '下架',
|
||
'created_at': book.created_at.strftime('%Y-%m-%d %H:%M:%S') if book.created_at else '',
|
||
'updated_at': book.updated_at.strftime('%Y-%m-%d %H:%M:%S') if book.updated_at else ''
|
||
})
|
||
|
||
df = pd.DataFrame(data)
|
||
|
||
# 创建临时文件
|
||
timestamp = datetime.datetime.now().strftime('%Y%m%d%H%M%S')
|
||
filename = f'books_export_{timestamp}.xlsx'
|
||
filepath = os.path.join(current_app.static_folder, 'temp', filename)
|
||
|
||
# 确保目录存在
|
||
os.makedirs(os.path.dirname(filepath), exist_ok=True)
|
||
|
||
# 写入Excel
|
||
df.to_excel(filepath, index=False)
|
||
|
||
# 提供下载链接
|
||
return redirect(url_for('static', filename=f'temp/{filename}'))
|
||
|
||
|
||
@book_bp.route('/test-permissions')
|
||
def test_permissions():
|
||
"""测试当前用户权限"""
|
||
if not current_user.is_authenticated:
|
||
return "未登录"
|
||
|
||
return f"""
|
||
<h1>用户权限信息</h1>
|
||
<p>用户名: {current_user.username}</p>
|
||
<p>角色ID: {current_user.role_id}</p>
|
||
<p>是否管理员: {'是' if current_user.role_id == 1 else '否'}</p>
|
||
<p><a href="/book/admin/list">尝试访问管理页面</a></p>
|
||
"""
|
||
|
||
# 添加到app/controllers/book.py文件中
|
||
|
||
@book_bp.route('/browse')
|
||
@login_required
|
||
def browse_books():
|
||
"""图书浏览页面 - 面向普通用户的友好界面"""
|
||
page = request.args.get('page', 1, type=int)
|
||
per_page = request.args.get('per_page', 12, type=int) # 增加每页数量
|
||
|
||
# 只显示状态为1的图书（未下架的图书）
|
||
query = Book.query.filter_by(status=1)
|
||
|
||
# 搜索功能
|
||
search = request.args.get('search', '')
|
||
if search:
|
||
query = query.filter(
|
||
(Book.title.contains(search)) |
|
||
(Book.author.contains(search)) |
|
||
(Book.isbn.contains(search))
|
||
)
|
||
|
||
# 分类筛选
|
||
category_id = request.args.get('category_id', type=int)
|
||
if category_id:
|
||
query = query.filter_by(category_id=category_id)
|
||
|
||
# 排序
|
||
sort = request.args.get('sort', 'id')
|
||
order = request.args.get('order', 'desc')
|
||
|
||
if order == 'desc':
|
||
query = query.order_by(getattr(Book, sort).desc())
|
||
else:
|
||
query = query.order_by(getattr(Book, sort))
|
||
|
||
pagination = query.paginate(page=page, per_page=per_page)
|
||
books = pagination.items
|
||
|
||
# 获取所有分类供筛选使用
|
||
categories = Category.query.all()
|
||
|
||
return render_template('book/browse.html',
|
||
books=books,
|
||
pagination=pagination,
|
||
search=search,
|
||
categories=categories,
|
||
category_id=category_id,
|
||
sort=sort,
|
||
order=order,)
|