/// <summary>
/// 根据主键删除一条记录
/// </summary>
/// <param name="key">主键</param>
/// <param name="cancellationToken">异步取消令牌</param>
/// <returns>Task</returns>
public virtual async Task DeleteExistsAsync(object key, CancellationToken cancellationToken = default)
{
var entity = await FindOrDefaultAsync(key, cancellationToken);
if (entity == null)
{
throw DbHelpers.DataNotFoundException();
}
await DeleteAsync(entity);
}
/// <summary>
/// 根据多个键查询一条记录
/// </summary>
/// <param name="keyValues">多个键</param>
/// <param name="cancellationToken">取消异步令牌</param>
/// <returns>数据库中的实体</returns>
public virtual async Task <TEntity> FindAsync(object[] keyValues, CancellationToken cancellationToken = default)
{
var entity = await FindOrDefaultAsync(keyValues, cancellationToken);
return(entity ?? throw DbHelpers.DataNotFoundException());
}
/// <summary>
/// 根据多个键查询一条记录
/// </summary>
/// <param name="keyValues">多个键</param>
/// <returns>数据库中的实体</returns>
public virtual async Task <TEntity> FindAsync(params object[] keyValues)
{
var entity = await FindOrDefaultAsync(keyValues);
return(entity ?? throw DbHelpers.DataNotFoundException());
}
/// <summary>
/// 根据多个键查询一条记录
/// </summary>
/// <param name="keyValues">多个键</param>
/// <returns>数据库中的实体</returns>
public virtual TEntity Find(params object[] keyValues)
{
var entity = FindOrDefault(keyValues) ?? throw DbHelpers.DataNotFoundException();
return(entity);
}
/// <summary>
/// 根据键查询一条记录
/// </summary>
/// <param name="key">键</param>
/// <returns>数据库中的实体</returns>
public virtual TEntity Find(object key)
{
var entity = FindOrDefault(key) ?? throw DbHelpers.DataNotFoundException();
return(entity);
}
/// <summary>
/// 根据主键删除一条记录
/// </summary>
/// <param name="key">主键</param>
public virtual void DeleteExists(object key)
{
var entity = FindOrDefault(key) ?? throw DbHelpers.DataNotFoundException();
Delete(entity);
}