431 lines
11 KiB
JavaScript
431 lines
11 KiB
JavaScript
/**
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* 贷款申请控制器
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* @file loanApplicationController.js
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* @description 银行系统贷款申请相关API控制器
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*/
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const { LoanApplication, AuditRecord, User } = require('../models');
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const { Op } = require('sequelize');
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const { validationResult } = require('express-validator');
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/**
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* 获取贷款申请列表
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* @param {Object} req - 请求对象
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* @param {Object} res - 响应对象
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*/
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const getApplications = async (req, res) => {
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try {
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const {
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page = 1,
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pageSize = 10,
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searchField = 'applicationNumber',
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searchValue = '',
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status = '',
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sortField = 'createdAt',
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sortOrder = 'DESC'
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} = req.query;
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// 构建查询条件
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const where = {};
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// 搜索条件
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if (searchValue) {
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if (searchField === 'customerName') {
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where.customer_name = { [Op.like]: `%${searchValue}%` };
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} else if (searchField === 'customerPhone') {
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where.customer_phone = { [Op.like]: `%${searchValue}%` };
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} else if (searchField === 'customerIdCard') {
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where.customer_id_card = { [Op.like]: `%${searchValue}%` };
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} else if (searchField === 'applicationNumber') {
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// 数据库中实际没有applicationNumber字段，使用id作为替代
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where.id = { [Op.like]: `%${searchValue}%` };
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}
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}
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// 状态筛选
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if (status) {
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where.status = status;
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}
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// 分页参数
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const offset = (parseInt(page) - 1) * parseInt(pageSize);
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const limit = parseInt(pageSize);
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// 排序参数 - 映射字段名
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const fieldMapping = {
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'createdAt': 'created_at',
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'updatedAt': 'updated_at',
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'applicationDate': 'application_date',
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'loanAmount': 'loan_amount',
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'loanTerm': 'loan_term',
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'interestRate': 'interest_rate'
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};
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const dbSortField = fieldMapping[sortField] || sortField;
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const order = [[dbSortField, sortOrder.toUpperCase()]];
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// 查询数据
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const { count, rows } = await LoanApplication.findAndCountAll({
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where,
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order,
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offset,
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limit
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});
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// 格式化数据
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const applications = rows.map(app => ({
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id: app.id,
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customer_name: app.customer_name,
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customer_phone: app.customer_phone,
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customer_id_card: app.customer_id_card,
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loan_amount: parseFloat(app.loan_amount),
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loan_term: app.loan_term,
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interest_rate: parseFloat(app.interest_rate),
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application_date: app.application_date,
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status: app.status,
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created_at: app.created_at,
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updated_at: app.updated_at
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}));
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res.json({
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success: true,
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data: {
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applications,
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pagination: {
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current: parseInt(page),
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pageSize: parseInt(pageSize),
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total: count,
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totalPages: Math.ceil(count / parseInt(pageSize))
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}
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}
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});
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} catch (error) {
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console.error('获取贷款申请列表失败:', error);
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res.status(500).json({
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success: false,
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message: '获取贷款申请列表失败'
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});
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}
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};
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/**
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* 获取贷款申请详情
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* @param {Object} req - 请求对象
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* @param {Object} res - 响应对象
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*/
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const getApplicationById = async (req, res) => {
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try {
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const { id } = req.params;
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const application = await LoanApplication.findByPk(id, {
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include: [
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{
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model: User,
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as: 'applicant',
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attributes: ['id', 'username', 'real_name', 'email', 'phone']
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},
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{
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model: User,
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as: 'approver',
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attributes: ['id', 'username', 'real_name']
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},
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{
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model: User,
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as: 'rejector',
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attributes: ['id', 'username', 'real_name']
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},
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{
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model: AuditRecord,
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as: 'auditRecords',
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include: [
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{
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model: User,
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as: 'auditorUser',
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attributes: ['id', 'username', 'real_name']
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}
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],
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order: [['auditTime', 'DESC']]
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}
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]
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});
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if (!application) {
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return res.status(404).json({
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success: false,
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message: '贷款申请不存在'
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});
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}
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// 格式化数据
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const formattedApplication = {
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id: application.id,
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applicationNumber: application.applicationNumber,
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productName: application.productName,
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farmerName: application.farmerName,
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borrowerName: application.borrowerName,
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borrowerIdNumber: application.borrowerIdNumber,
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assetType: application.assetType,
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applicationQuantity: application.applicationQuantity,
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amount: parseFloat(application.amount),
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status: application.status,
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type: application.type,
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term: application.term,
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interestRate: parseFloat(application.interestRate),
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phone: application.phone,
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purpose: application.purpose,
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remark: application.remark,
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applicationTime: application.applicationTime,
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approvedTime: application.approvedTime,
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rejectedTime: application.rejectedTime,
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applicant: application.applicant,
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approver: application.approver,
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rejector: application.rejector,
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auditRecords: application.auditRecords.map(record => ({
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id: record.id,
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action: record.action,
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auditor: record.auditorUser?.real_name || record.auditor,
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auditorId: record.auditorId,
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comment: record.comment,
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time: record.auditTime,
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previousStatus: record.previousStatus,
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newStatus: record.newStatus
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}))
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};
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res.json({
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success: true,
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data: formattedApplication
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});
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} catch (error) {
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console.error('获取贷款申请详情失败:', error);
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res.status(500).json({
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success: false,
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message: '获取贷款申请详情失败'
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});
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}
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};
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/**
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* 审核贷款申请
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* @param {Object} req - 请求对象
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* @param {Object} res - 响应对象
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*/
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const auditApplication = async (req, res) => {
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try {
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const errors = validationResult(req);
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if (!errors.isEmpty()) {
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return res.status(400).json({
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success: false,
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message: '请求参数错误',
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errors: errors.array()
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});
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}
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const { id } = req.params;
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const { action, comment } = req.body;
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const userId = req.user?.id;
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// 获取申请信息
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const application = await LoanApplication.findByPk(id);
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if (!application) {
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return res.status(404).json({
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success: false,
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message: '贷款申请不存在'
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});
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}
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// 检查申请状态
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if (application.status === 'approved' || application.status === 'rejected') {
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return res.status(400).json({
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success: false,
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message: '该申请已完成审核，无法重复操作'
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});
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}
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const previousStatus = application.status;
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let newStatus = application.status;
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// 根据审核动作更新状态
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if (action === 'approve') {
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newStatus = 'approved';
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application.approvedTime = new Date();
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application.approvedBy = userId;
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} else if (action === 'reject') {
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newStatus = 'rejected';
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application.rejectedTime = new Date();
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application.rejectedBy = userId;
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application.rejectionReason = comment;
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}
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// 更新申请状态
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application.status = newStatus;
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await application.save();
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// 创建审核记录
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await AuditRecord.create({
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applicationId: id,
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action,
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auditor: req.user?.real_name || req.user?.username || '系统',
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auditorId: userId,
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comment,
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auditTime: new Date(),
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previousStatus,
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newStatus
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});
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res.json({
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success: true,
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message: action === 'approve' ? '审核通过' : '审核拒绝',
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data: {
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id: application.id,
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status: newStatus,
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action,
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comment
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}
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});
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} catch (error) {
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console.error('审核贷款申请失败:', error);
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res.status(500).json({
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success: false,
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message: '审核贷款申请失败'
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});
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}
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};
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/**
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* 获取申请统计信息
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* @param {Object} req - 请求对象
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* @param {Object} res - 响应对象
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*/
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const getApplicationStats = async (req, res) => {
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try {
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const stats = await LoanApplication.findAll({
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attributes: [
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'status',
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[LoanApplication.sequelize.fn('COUNT', '*'), 'count'],
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[LoanApplication.sequelize.fn('SUM', LoanApplication.sequelize.col('amount')), 'totalAmount']
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],
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group: ['status'],
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raw: true
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});
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const totalApplications = await LoanApplication.count();
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const totalAmount = await LoanApplication.sum('amount') || 0;
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const statusStats = {
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pending_review: 0,
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verification_pending: 0,
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pending_binding: 0,
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approved: 0,
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rejected: 0
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};
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const amountStats = {
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pending_review: 0,
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verification_pending: 0,
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pending_binding: 0,
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approved: 0,
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rejected: 0
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};
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stats.forEach(stat => {
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statusStats[stat.status] = parseInt(stat.count);
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amountStats[stat.status] = parseFloat(stat.totalAmount) || 0;
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});
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res.json({
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success: true,
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data: {
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total: {
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applications: totalApplications,
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amount: parseFloat(totalAmount)
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},
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byStatus: {
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counts: statusStats,
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amounts: amountStats
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}
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}
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});
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} catch (error) {
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console.error('获取申请统计失败:', error);
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res.status(500).json({
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success: false,
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message: '获取申请统计失败'
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});
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}
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};
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/**
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* 批量更新申请状态
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* @param {Object} req - 请求对象
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* @param {Object} res - 响应对象
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*/
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const batchUpdateStatus = async (req, res) => {
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try {
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const { ids, status } = req.body;
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const userId = req.user?.id;
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if (!ids || !Array.isArray(ids) || ids.length === 0) {
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return res.status(400).json({
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success: false,
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message: '请选择要操作的申请'
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});
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}
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if (!status) {
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return res.status(400).json({
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success: false,
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message: '请指定目标状态'
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});
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}
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// 更新申请状态
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const [updatedCount] = await LoanApplication.update(
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{
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status,
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...(status === 'approved' && { approvedTime: new Date(), approvedBy: userId }),
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...(status === 'rejected' && { rejectedTime: new Date(), rejectedBy: userId })
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},
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{
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where: {
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id: { [Op.in]: ids }
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}
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}
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);
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// 为每个申请创建审核记录
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for (const id of ids) {
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await AuditRecord.create({
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applicationId: id,
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action: status === 'approved' ? 'approve' : 'reject',
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auditor: req.user?.real_name || req.user?.username || '系统',
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auditorId: userId,
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comment: `批量${status === 'approved' ? '通过' : '拒绝'}`,
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auditTime: new Date(),
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newStatus: status
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});
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}
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res.json({
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success: true,
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message: `成功更新${updatedCount}个申请的状态`,
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data: {
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updatedCount,
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status
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}
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});
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} catch (error) {
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console.error('批量更新申请状态失败:', error);
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res.status(500).json({
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success: false,
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message: '批量更新申请状态失败'
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});
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}
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};
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module.exports = {
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getApplications,
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getApplicationById,
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auditApplication,
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getApplicationStats,
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batchUpdateStatus
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};
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