//public IRepository<TEntity> GetShardingRepository<TContext, TEntity>(ShardingOptions options)
// where TContext : AquirrelDbContext<TEntity>
// where TEntity : class
//{
// return null;
//}
public IRepositoryBase <TEntity> GetShardingRepository <TContext, TEntity>(ShardingOptions options)
where TContext : DbContext
where TEntity : class
{
if (options == null)
{
return(provider.GetRequiredService <Repository <TContext, TEntity> >());
}
var t = typeof(TContext);
var key = $"[sharding repo][{typeof(TContext).FullName}][{typeof(TEntity).Name}[{options}]]";
TContext db = null;
if (options.ShardingTableValue.IsNotNullOrEmpty() && typeof(TContext).IsGenericType)
{
var tableName = this.GetShardingTableName <TContext, TEntity>(options);
if (tableName.IsNotNullOrEmpty())
{
//!!!!!!!!!
//wating change entitytype.annotaions life is scope
throw new NotImplementedException("only support once request");
db = this.GetShardingDbContext <TContext>(options);
var entityType = db.Model.FindEntityType(typeof(TEntity));
if (entityType.Relational()
is Microsoft.EntityFrameworkCore.Metadata.RelationalEntityTypeAnnotations extensions)
{
extensions.TableName = entityType.ShortName() + "_" + tableName;
}
}
}
else if (options.ShardingDbValue.IsNotNullOrEmpty())
{
db = this.GetShardingDbContext <TContext>(options);
}
else
{
throw new NotImplementedException();
}
return((IRepositoryBase <TEntity>) this.provider.GetRequiredService <InternalScopeServiceContainer>()
.GetOrAdd(key, k => new Repository <TContext, TEntity>(db)));
}
public TContext GetShardingDbContext <TContext>(ShardingOptions options)
where TContext : DbContext
{
var key = $"[sharding dbcontext][{typeof(TContext).FullName}][{options}]";
return((TContext)this.provider.GetRequiredService <InternalScopeServiceContainer>()
.GetOrAdd(key, k =>
{
Type dbContextType = typeof(TContext).IsGenericType ? typeof(TContext).BaseType : typeof(TContext);
var optionsType = typeof(DbContextOptions <>).MakeGenericType(dbContextType);
var dbOptionsExtensions = ((DbContextOptions)this.provider.GetRequiredService(optionsType))
.Extensions.ToDictionary(p => p.GetType(), p => p);
var builder = new DbContextOptionsBuilder <TContext>(new DbContextOptions <TContext>(dbOptionsExtensions));
builder = this.BuilderDbContextOptions <TContext>(builder, options);
return (TContext)Activator.CreateInstance(typeof(TContext), builder.Options);
}));
}
public virtual DbContextOptionsBuilder <TContext> BuilderDbContextOptions <TContext>(DbContextOptionsBuilder <TContext> builder, ShardingOptions options)
where TContext : DbContext
{
return(builder);
}
public virtual string GetShardingTableName <TContext, TEntity>(ShardingOptions options)
{
return(null);
}