/// <summary>
/// 依据列表数据的关联Id，获取关联的记录并填充到相应的属性值。
/// </summary>
public static void FillProperty <TSource, TDTO>(this IReadOnlyCollection <TSource> list, Expression <Func <TSource, TDTO> > expressionProp,
Func <TSource, long> funcPropId, Func <IReadOnlyCollection <long>, List <TDTO> > qryPropObj) where TDTO : IGeneralEntity
{
if (list.IsNullOrEmpty())
{
return;
}
var objList = qryPropObj(list.Select(funcPropId).ToList());
if (objList.IsNullOrEmpty())
{
return;
}
var setter = TypeExtend.GetPropertySetter(expressionProp);
foreach (var item in list)
{
var obj = objList.ById(funcPropId(item));
if (obj != null)
{
setter(item, obj);
}
}
}
/*internal static PropertyMeta<TEnt, TProp> By(Expression<Func<TEnt, TProp>> expGet)
* {
* var prop = ((MemberExpression) expGet.Body).Member as PropertyInfo;
* return new PropertyMeta<TEnt, TProp>(prop)
* {
* _getter = expGet.Compile()
* };
* }*/
public PropertyMeta(PropertyInfo prop, PropMetaAttribute attr)
{
Name = prop.Name;
AttrSet = attr;
Getter = TypeExtend.GetPropertyGetter <TEnt, TProp>(prop);
Setter = TypeExtend.GetPropertySetter <TEnt, TProp>(prop);
}