/// <summary>
/// 获取列描述信息
/// </summary>
/// <param name="name"></param>
/// <param name="descriptor"></param>
/// <returns></returns>
public IColumnDescriptor GetColumnDescriptor(string name, QueryJoinDescriptor descriptor)
{
var col = descriptor.EntityDescriptor.Columns.FirstOrDefault(m => m.PropertyInfo.Name.Equals(name));
Check.NotNull(col, nameof(col), $"({name})列不存在");
return(col);
}
/// <summary>
/// 获取列名
/// </summary>
/// <param name="name"></param>
/// <param name="descriptor"></param>
/// <returns></returns>
public string GetColumnName(string name, QueryJoinDescriptor descriptor)
{
var col = GetColumnDescriptor(name, descriptor);
//只有一个实体的时候，不需要别名
if (JoinDescriptors.Count == 1)
{
// ReSharper disable once PossibleNullReferenceException
return(_sqlAdapter.AppendQuote(col.Name));
}
// ReSharper disable once PossibleNullReferenceException
return($"{_sqlAdapter.AppendQuote(descriptor.Alias)}.{_sqlAdapter.AppendQuote(col.Name)}");
}
/// <summary>
/// 获取列名
/// </summary>
/// <param name="name"></param>
/// <param name="descriptor"></param>
/// <returns></returns>
public string GetColumnName(string name, QueryJoinDescriptor descriptor)
{
var col = descriptor.EntityDescriptor.Columns.FirstOrDefault(m => m.PropertyInfo.Name.Equals(name));
Check.NotNull(col, nameof(col), $"({name})列不存在");
//只有一个实体的时候，不需要别名
if (JoinDescriptors.Count == 1)
{
// ReSharper disable once PossibleNullReferenceException
return(_sqlAdapter.AppendQuote(col.Name));
}
// ReSharper disable once PossibleNullReferenceException
return($"{_sqlAdapter.AppendQuote(descriptor.Alias)}.{_sqlAdapter.AppendQuote(col.Name)}");
}
