Question

我正在尝试设置自定义存储库，因为我有一个基于全文搜索的查询。但是尝试设置自定义存储库会引发异常。看起来我没有正确连接依赖。这是代码

    public interface ICustomRepository<TEntity, TPrimaryKey> : IRepository<TEntity, TPrimaryKey>
    where TEntity : class, IEntity<TPrimaryKey>
{
    IQueryable<TEntity> FromSql(string rawSqlQuery);
}

public interface ICustomRepository<TEntity> : ICustomRepository<TEntity,int>
    where TEntity : class, IEntity<int>
{

}


/// <summary>
/// Base class for custom repositories of the application.
/// </summary>
/// <typeparam name="TEntity">Entity type</typeparam>
/// <typeparam name="TPrimaryKey">Primary key type of the entity</typeparam>
public abstract class CustomRepositoryBase<TEntity, TPrimaryKey> : EfCoreRepositoryBase<CustomDbContext, TEntity, TPrimaryKey>, ICustomRepository<TEntity,TPrimaryKey>
    where TEntity : class, IEntity<TPrimaryKey>
{
    protected CustomRepositoryBase(IDbContextProvider<CustomDbContext> dbContextProvider)
        : base(dbContextProvider)
    {
    }

    // Add your common methods for all repositories

    public IQueryable<TEntity> FromSql(string rawSqlQuery)
    {
        var dbContext = GetDbContext();
        return dbContext.Set<TEntity>().FromSql(rawSqlQuery);
    }

}

这就是我如何完成di setup

IocManager.RegisterAssemblyByConvention(typeof(PropertySearchEntityFrameworkModule).GetAssembly());     
  IocManager.IocContainer.Register(Component.For(typeof(IPropertySearchRepository<,>))
                    .ImplementedBy(typeof(PropertySearchRepositoryBase<,>))
                    .LifeStyle.Transient);

但我得到的是异常

发生System.MissingMethodException HResult = 0x80131513
  Message =类型的构造函数   ＆＃39; Custom.EntityFrameworkCore.Repositories.CustomRepositoryBase`2 [[Custom.CustomProperties.CustomProperty，   Custom.Core，Version = 1.0.0.0，Culture = neutral，   PublicKeyToken = null]，[System.Int64，System.Private.CoreLib，   Version = 4.0.0.0，Culture = neutral，PublicKeyToken = 7cec85d7bea7798e]]＆＃39;   未找到。来源=
  StackTrace：在System.RuntimeType.CreateInstanceImpl（BindingFlags   bindingAttr，Binder binder，Object [] args，CultureInfo culture，   Object [] activationAttributes，StackCrawlMark＆amp; stackMark）

不确定我错过了什么。

Answer 1

CustomRepositoryBase不能是abstract，需要public构造函数：

public class CustomRepositoryBase<TEntity, TPrimaryKey> : EfCoreRepositoryBase<CustomDbContext, TEntity, TPrimaryKey>, ICustomRepository<TEntity,TPrimaryKey>
    where TEntity : class, IEntity<TPrimaryKey>
{
    public CustomRepositoryBase(IDbContextProvider<CustomDbContext> dbContextProvider)
        : base(dbContextProvider)
    {
    }

    // ...
}

Answer 2

实施应该是这样的。

public interface ICustomRepository : IRepository<Custom, int>
{

}

public class CustomRepository : CustomRepositoryBase<Custom, int>, ICustomRepository
{
public CustomRepository(IDbContextProvider<CustomDbContext> dbContextProvider,
        IObjectMapper objectMapper)
    : base(dbContextProvider, objectMapper)
    {
    }
}

在aspnetboilerblate中注入自定义存储库

2 个答案: