Ninject提供商->在提供程序内部获取另一个依赖项 [英] Ninject Providers -> Get another dependency inside the provider

问题描述

我想知道这里的最佳做法是什么. 我需要为我的多租户应用程序构造一个DbContext，所以我已经制作了一个像这样的Dependency provider:

I'm wondering what the best practices is here. I need to construct a DbContext for my multi tenanted application, so I have made a Dependency provider like this:

public class TenantContextFactoryProvider : Provider<DbContext>
{
    protected override DbContext CreateInstance(IContext context)
    {
        var tenant = // How to get the tenant through ninject??
        return new DbContext(tenant.ConnectionString);
    }
}

我需要ninject来解决租户依赖性，但是我不确定该怎么做?

I need ninject to resolve the tenant dependency, but I'm not sure how to do this?

推荐答案

虽然服务定位器确实有效，但构造函数注入是另一种选择.

While service locator certainly works, constructor injection is another choice.

public class TenantContextFactoryProvider : Provider<DbContext>
{
    ITenant tenant; 
    public TenantContextFactoryProvider(ITenant tenant)
    {
         this.tenant = tenant;
    }

    protected override DbContext CreateInstance(IContext context)
    {
        return new DbContext(tenant.ConnectionString);
    }
}

这篇关于Ninject提供商->在提供程序内部获取另一个依赖项的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！