Initial commit: 宁夏智慧养殖监管平台

backend/migrations/20230101000000_initial_schema.js

@@ -0,0 +1,218 @@
+/**
+ * 迁移: initial_schema
+ * 创建时间: 2023-01-01T00:00:00.000Z
+ * 描述: 初始化数据库架构
+ */
+'use strict';
+
+module.exports = {
+  up: async (queryInterface, Sequelize) => {
+    const { DataTypes } = require('sequelize');
+    const { literal } = require('sequelize');
+    // 创建用户表
+    await queryInterface.createTable('users', {
+      id: {
+        type: DataTypes.INTEGER,
+        primaryKey: true,
+        autoIncrement: true
+      },
+      username: {
+        type: DataTypes.STRING(50),
+        allowNull: false,
+        unique: true
+      },
+      email: {
+        type: DataTypes.STRING(100),
+        allowNull: false,
+        unique: true
+      },
+      password: {
+        type: DataTypes.STRING(255),
+        allowNull: false
+      },
+      created_at: {
+        type: DataTypes.DATE,
+        defaultValue: literal('CURRENT_TIMESTAMP'),
+        allowNull: false
+      },
+      updated_at: {
+        type: DataTypes.DATE,
+        defaultValue: literal('CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP'),
+        allowNull: false
+      }
+    });
+
+    // 创建角色表
+    await queryInterface.createTable('roles', {
+      id: {
+        type: DataTypes.INTEGER,
+        primaryKey: true,
+        autoIncrement: true
+      },
+      name: {
+        type: DataTypes.STRING(50),
+        allowNull: false,
+        unique: true
+      },
+      description: {
+        type: DataTypes.TEXT,
+        allowNull: true
+      },
+      created_at: {
+        type: DataTypes.DATE,
+        defaultValue: literal('CURRENT_TIMESTAMP'),
+        allowNull: false
+      }
+    });
+
+    // 创建用户角色关联表
+    await queryInterface.createTable('user_roles', {
+      user_id: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        references: {
+          model: 'users',
+          key: 'id'
+        },
+        onDelete: 'CASCADE'
+      },
+      role_id: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        references: {
+          model: 'roles',
+          key: 'id'
+        },
+        onDelete: 'CASCADE'
+      },
+      assigned_at: {
+        type: DataTypes.DATE,
+        defaultValue: literal('CURRENT_TIMESTAMP'),
+        allowNull: false
+      }
+    });
+
+    // 用户角色关联表使用复合主键
+    // 注意：在MySQL中，复合主键应该在创建表时定义
+
+    // 创建产品表
+    await queryInterface.createTable('products', {
+      id: {
+        type: DataTypes.INTEGER,
+        primaryKey: true,
+        autoIncrement: true
+      },
+      name: {
+        type: DataTypes.STRING(100),
+        allowNull: false
+      },
+      description: {
+        type: DataTypes.TEXT,
+        allowNull: true
+      },
+      price: {
+        type: DataTypes.DECIMAL(10, 2),
+        allowNull: false
+      },
+      stock: {
+        type: DataTypes.INTEGER,
+        defaultValue: 0
+      },
+      status: {
+        type: DataTypes.ENUM('active', 'inactive'),
+        defaultValue: 'active'
+      },
+      created_at: {
+        type: DataTypes.DATE,
+        defaultValue: literal('CURRENT_TIMESTAMP'),
+        allowNull: false
+      },
+      updated_at: {
+        type: DataTypes.DATE,
+        defaultValue: literal('CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP'),
+        allowNull: false
+      }
+    });
+
+    // 创建订单表
+    await queryInterface.createTable('orders', {
+      id: {
+        type: DataTypes.INTEGER,
+        primaryKey: true,
+        autoIncrement: true
+      },
+      user_id: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        references: {
+          model: 'users',
+          key: 'id'
+        },
+        onDelete: 'CASCADE'
+      },
+      total_amount: {
+        type: DataTypes.DECIMAL(10, 2),
+        allowNull: false
+      },
+      status: {
+        type: DataTypes.ENUM('pending', 'paid', 'shipped', 'delivered', 'cancelled'),
+        defaultValue: 'pending'
+      },
+      created_at: {
+        type: DataTypes.DATE,
+        defaultValue: literal('CURRENT_TIMESTAMP'),
+        allowNull: false
+      },
+      updated_at: {
+        type: DataTypes.DATE,
+        defaultValue: literal('CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP'),
+        allowNull: false
+      }
+    });
+
+    // 创建订单项表
+    await queryInterface.createTable('order_items', {
+      id: {
+        type: DataTypes.INTEGER,
+        primaryKey: true,
+        autoIncrement: true
+      },
+      order_id: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        references: {
+          model: 'orders',
+          key: 'id'
+        },
+        onDelete: 'CASCADE'
+      },
+      product_id: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        references: {
+          model: 'products',
+          key: 'id'
+        },
+        onDelete: 'CASCADE'
+      },
+      quantity: {
+        type: DataTypes.INTEGER,
+        allowNull: false
+      },
+      price: {
+        type: DataTypes.DECIMAL(10, 2),
+        allowNull: false
+      }
+    });
+  },
+
+  down: async (queryInterface, Sequelize) => {
+    // 按照依赖关系的相反顺序删除表
+    await queryInterface.dropTable('order_items');
+    await queryInterface.dropTable('orders');
+    await queryInterface.dropTable('products');
+    await queryInterface.dropTable('user_roles');
+    await queryInterface.dropTable('roles');
+    await queryInterface.dropTable('users');
+  }
+};