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feat: migrate snowflake ids and refresh migrations

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MSuMshk
2025-12-02 09:04:37 +08:00
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Document/10_设计期DbContext配置指引.md
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> 目的：在执行 `dotnet ef` 命令时无需硬编码数据库连接，可根据 appsettings 与环境变量自动加载。本文覆盖环境变量设置、配置目录指定等细节。
## 三库迁移命令 只需更改 SnowflakeIds_App 迁移关键字
> 先生成迁移，再执行数据库更新。启动项目统一用 AdminApi 确保加载最新配置。
### 生成迁移
```bash
# App 主库
dotnet tool run dotnet-ef migrations add SnowflakeIds_App `
--project src/Infrastructure/TakeoutSaaS.Infrastructure/TakeoutSaaS.Infrastructure.csproj `
--startup-project src/Api/TakeoutSaaS.AdminApi/TakeoutSaaS.AdminApi.csproj `
--context TakeoutSaaS.Infrastructure.App.Persistence.TakeoutAppDbContext
# Identity 库
dotnet tool run dotnet-ef migrations add SnowflakeIds_Identity `
--project src/Infrastructure/TakeoutSaaS.Infrastructure/TakeoutSaaS.Infrastructure.csproj `
--startup-project src/Api/TakeoutSaaS.AdminApi/TakeoutSaaS.AdminApi.csproj `
--context TakeoutSaaS.Infrastructure.Identity.Persistence.IdentityDbContext
# Dictionary 库
dotnet tool run dotnet-ef migrations add SnowflakeIds_Dictionary `
--project src/Infrastructure/TakeoutSaaS.Infrastructure/TakeoutSaaS.Infrastructure.csproj `
--startup-project src/Api/TakeoutSaaS.AdminApi/TakeoutSaaS.AdminApi.csproj `
--context TakeoutSaaS.Infrastructure.Dictionary.Persistence.DictionaryDbContext
```
### 更新数据库
```bash
dotnet tool run dotnet-ef database update `
--project src/Infrastructure/TakeoutSaaS.Infrastructure/TakeoutSaaS.Infrastructure.csproj `
--startup-project src/Api/TakeoutSaaS.AdminApi/TakeoutSaaS.AdminApi.csproj `
--context TakeoutSaaS.Infrastructure.App.Persistence.TakeoutAppDbContext
dotnet tool run dotnet-ef database update `
--project src/Infrastructure/TakeoutSaaS.Infrastructure/TakeoutSaaS.Infrastructure.csproj `
--startup-project src/Api/TakeoutSaaS.AdminApi/TakeoutSaaS.AdminApi.csproj `
--context TakeoutSaaS.Infrastructure.Identity.Persistence.IdentityDbContext
dotnet tool run dotnet-ef database update `
--project src/Infrastructure/TakeoutSaaS.Infrastructure/TakeoutSaaS.Infrastructure.csproj `
--startup-project src/Api/TakeoutSaaS.AdminApi/TakeoutSaaS.AdminApi.csproj `
--context TakeoutSaaS.Infrastructure.Dictionary.Persistence.DictionaryDbContext
```
## 一、设计时工厂读取逻辑概述
设计时工厂（`DesignTimeDbContextFactoryBase<T>`）按下面顺序解析连接串：
1. 若设置了 `TAKEOUTSAAS_APP_CONNECTION` / `TAKEOUTSAAS_IDENTITY_CONNECTION` / `TAKEOUTSAAS_DICTIONARY_CONNECTION` 等环境变量，则优先使用。