luoqian
c5f741e6a4
- 将 AppDataContext、实体模型、Migrations 从 Avalonia-Services 移动到 Avalonia-EFCore - 更新 API、PC、Services 中的数据库上下文和实体引用命名空间 - 在实体上显式绑定表名、字段名和数据库注释 - 更新 InitialCreate、Designer、Snapshot，使用新的表名、字段名和注释 - 新增 AppDataContextFactory，支持 dotnet ef 设计时创建 DbContext - 新增本地 dotnet-ef 工具清单 - 新增一键生成迁移脚本 add-migration.ps1 / .cmd / .bat - 启动时自动检测并执行未应用迁移 - 从 appsettings.json 读取数据库配置
66 lines
3.4 KiB
C#
66 lines
3.4 KiB
C#
using System;
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using Microsoft.EntityFrameworkCore.Metadata;
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using Microsoft.EntityFrameworkCore.Migrations;
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using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
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#nullable disable
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namespace Avalonia_EFCore.Migrations
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{
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/// <summary>
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/// 初始数据库基线。后续软件版本只追加新的 Migration，不修改已发布 Migration。
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/// </summary>
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public partial class InitialCreate : Migration
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{
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protected override void Up(MigrationBuilder migrationBuilder)
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{
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migrationBuilder.CreateTable(
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name: "user",
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columns: table => new
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{
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Id = table.Column<int>(name: "id", nullable: false, comment: "用户主键")
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.Annotation("SqlServer:Identity", "1, 1")
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.Annotation("Sqlite:Autoincrement", true)
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.Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn)
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.Annotation("MySql:ValueGenerationStrategy", MySqlValueGenerationStrategy.IdentityColumn),
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Name = table.Column<string>(name: "name", maxLength: 100, nullable: true, comment: "用户名称"),
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Email = table.Column<string>(name: "email", maxLength: 200, nullable: true, comment: "用户邮箱"),
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CreatedAt = table.Column<DateTime>(name: "created-at", nullable: false, comment: "创建时间"),
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UpdatedAt = table.Column<DateTime>(name: "updated-at", nullable: false, comment: "更新时间")
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},
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constraints: table =>
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{
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table.PrimaryKey("pk-user", x => x.Id);
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},
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comment: "用户实体，演示数据库 CRUD 操作");
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migrationBuilder.CreateTable(
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name: "weather-forecast",
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columns: table => new
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{
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Id = table.Column<int>(name: "id", nullable: false, comment: "天气预报主键")
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.Annotation("SqlServer:Identity", "1, 1")
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.Annotation("Sqlite:Autoincrement", true)
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.Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn)
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.Annotation("MySql:ValueGenerationStrategy", MySqlValueGenerationStrategy.IdentityColumn),
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Date = table.Column<DateOnly>(name: "date", nullable: false, comment: "预报日期"),
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TemperatureC = table.Column<int>(name: "temperature-c", nullable: false, comment: "摄氏温度"),
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Summary = table.Column<string>(name: "summary", maxLength: 200, nullable: true, comment: "天气摘要"),
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CreatedAt = table.Column<DateTime>(name: "created-at", nullable: false, comment: "创建时间"),
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UpdatedAt = table.Column<DateTime>(name: "updated-at", nullable: false, comment: "更新时间")
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},
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constraints: table =>
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{
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table.PrimaryKey("pk-weather-forecast", x => x.Id);
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},
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comment: "天气预报数据实体");
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}
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protected override void Down(MigrationBuilder migrationBuilder)
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{
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migrationBuilder.DropTable(name: "weather-forecast");
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migrationBuilder.DropTable(name: "user");
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}
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}
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}
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