/// <summary>
/// 创建重复语句块。
/// </summary>
/// <param name="context">生成上下文。</param>
/// <param name="items">数据项集合。</param>
/// <param name="loader">属性值加载器。</param>
/// <param name="block">重复的语句块。</param>
public RepeatBlockFragment(GenerateContext context, IEnumerable items, IPropertyValueLoader loader = null, BlockFragment block = null)
: base(context)
{
Block = block ?? new BlockFragment(context);
Items = items;
Loader = loader;
}
/// <summary>
/// 添加成员参数。
/// </summary>
/// <param name="member"></param>
/// <param name="loader"></param>
/// <param name="index"></param>
/// <returns></returns>
public string AddParameter(ColumnMetadata member, IPropertyValueLoader loader, int index)
{
if (_ParameterBody.TryGetValue(member.Member, out ParameterBody value))
{
return(value.Parameter.ParameterName);
}
_Loader = loader;
value.Parameter = CreateParameter(null);
value.Index = index;
_ParameterBody.Add(member.Member, value);
return(value.Parameter.ParameterName);
}
/// <summary>
/// 添加数据成员参数。
/// </summary>
/// <param name="member">注册成员。</param>
/// <param name="loader">加载器。</param>
/// <param name="index">取值索引。</param>
/// <returns>参数名。</returns>
public string AddParameter(ColumnMetadata member, IPropertyValueLoader loader = null, int index = -1)
{
var para = CreateParameter(null);
var value = new ParameterBody()
{
Parameter = para,
Metadata = member
};
if (loader == null)
{
para.Direction = ParameterDirection.Output;
ReturnParameters.Add(value);
}
else
{
Loader = loader;
value.Index = index;
MemberParameters.Add(value);
}
Parameters.Add(para);
return(para.ParameterName);
}
/// <summary>
/// 初始化提交成员。
/// </summary>
/// <param name="context">生成上下文。</param>
/// <param name="loader">属性值加载器。</param>
/// <param name="owner">成员所有者。</param>
/// <param name="property">成员属性。</param>
public CommitMemberFragment(GenerateContext context, IPropertyValueLoader loader, ISourceFragment owner, MemberInfo property)
: base(context, owner, property)
{
Loader = loader;
Index = loader.IndexOf(property);
}
