我可以将 DbContext 作为接口或委托传递吗

发布于 2025-01-17 19:50:46 字数 722 浏览 0 评论 0原文

我有两个 dbcontext 所以想通过一些函数传递它，这样我就可以在两个 dbcontext 之间切换，或者我必须更改所有 api 控制器

  public class AccountClassesController : ControllerBase
{
    private readonly  ApplicationDbContext _context;


    public AccountClassesController(ApplicationDbContext context)
    {
        _context = context;
    }

    // GET: api/AccountClasses
    [HttpGet]
    public async Task<ActionResult<IEnumerable<AccountClass>>> GetAccountClass()
    {
        return await _context.AccountClass.ToListAsync();
    }

不想从控制器调用 ApplicationDbContext 通过某些函数或

我拥有的东西调用它现在为 postgresql 和 sqlserver 实现了数据库连接，每个人首先在代码中创建不同类型的迁移，因此必须创建两个 dbcontext，现在我希望当我使用 postgresql 或时能够在 dbcontext 之间切换sql服务器

原文

I am having two dbcontext so want to pass it though some function so I can switch between the two dbcontext or I have to change in all the api controller

  public class AccountClassesController : ControllerBase
{
    private readonly  ApplicationDbContext _context;


    public AccountClassesController(ApplicationDbContext context)
    {
        _context = context;
    }

    // GET: api/AccountClasses
    [HttpGet]
    public async Task<ActionResult<IEnumerable<AccountClass>>> GetAccountClass()
    {
        return await _context.AccountClass.ToListAsync();
    }

don't want to call the ApplicationDbContext from controller call it through some function or something

I have implemented database connection for postgresql and sqlserver now for them each one creates a different type of migration in code first, so had to create two dbcontext, now I want to be able to switch between dbcontext when I using postgresql or sql server

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怂人 2025-01-24 19:50:46

是的，您可以创建接口并修改您的应用程序DBContext以实现。

接口

public interface IAccountClass {
    Task<IEnumerable<AccountClass>> GetAccountClass();
}

public class AppDbContext: DbContext, IAccount {
   /* implementing interface
   */
  public Task<IEnumerable<AccountClass>> GetAccountClass() {
    return this.AccountClass.ToListAsync();
  }
}

注入DBContext实例铸件作为控制器中的接口：

   public AccountClassesController(IAccountClass accountClass)
    {
        _accountClass = accountClass;
    }

    // GET: api/AccountClasses
    [HttpGet]
    public async Task<ActionResult<IEnumerable<AccountClass>>> GetAccountClass()
    {
        return await this._accountClass.GetAccountClass();
    }

必须配置依赖项注入框架以将新的应用程序dbcontext注入IACCONTCLASS。

Yes, you can create interfaces and modify your ApplicationDbContext to implement.

interface

public interface IAccountClass {
    Task<IEnumerable<AccountClass>> GetAccountClass();
}

public class AppDbContext: DbContext, IAccount {
   /* implementing interface
   */
  public Task<IEnumerable<AccountClass>> GetAccountClass() {
    return this.AccountClass.ToListAsync();
  }
}

Inject DbContext instance casting as interface in your controller:

   public AccountClassesController(IAccountClass accountClass)
    {
        _accountClass = accountClass;
    }

    // GET: api/AccountClasses
    [HttpGet]
    public async Task<ActionResult<IEnumerable<AccountClass>>> GetAccountClass()
    {
        return await this._accountClass.GetAccountClass();
    }

You must configure you dependency injection framework to inject a new ApplicationDbContext as IAccountClass.

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