/// <summary>
/// 激活自动ModelFilter，将泛型ModelFilter添加到Filter容器里
/// </summary>
public void ActivateAutoModelFilter()
{
if (!ModelFilterDict.IsNullOrEmptySet())
{
var func = ModelFilter();
Add(func, ModelFilterDict);
}
}
/// <summary>
/// 在泛型ModelFilter列表中添加一个字段的过滤规则，最后需要调用AddModelFilterIntoContainer将其添加到Filter容器里，不然不会生效
/// </summary>
/// <param name="modelFieldName">Model对应的字段名，使用namof(Model.字段名)</param>
/// <param name="compareValue">传入与Model字段需要比较的值</param>
/// <param name="fieldFilterMode">指定字段过滤模式（模糊以及忽略大小写仅对String有效），其他类型字段默认为精确匹配，string字段默认模糊并忽略大小写匹配</param>
/// <param name="sortType">指定字段排序规则，默认不排序</param>
public void AddAutoModelFilter(string modelFieldName, object compareValue, FilterType fieldFilterMode = FilterType.Default, SortType sortType = SortType.None)
{
if (compareValue == null && !fieldFilterMode.HasFlag(FilterType.SupportNull))
{
return;
}
switch (sortType)
{
case SortType.Ascending:
ModelSortRuleDict.Add(modelFieldName, new KeyValuePair <int, bool>(1, false));
break;
case SortType.Descending:
ModelSortRuleDict.Add(modelFieldName, new KeyValuePair <int, bool>(1, true));
break;
case SortType.StringAuto:
if (compareValue is string sortStr)
{
Regex regex = new Regex(@"[,;\\]?\d*(asc|dsc|升序|降序|desc)[,;\\]?", RegexOptions.IgnoreCase);
if (regex.IsMatch(sortStr))
{
string sortRule = regex.Match(sortStr)?.Value?.ToLower(); //转小写
compareValue = regex.Replace(sortStr, "", 1); //这里替换掉以防影响过滤
if (!int.TryParse(sortRule.Match("\\d{1,3}"), out int weight))
{
weight = 1; //若未指定，权重默认是1，权重最多3位数
}
bool isDescending = sortRule.IsMatch("(dsc|降序|desc)"); //指定是否为降序，否则为升序
ModelSortRuleDict.Add(modelFieldName, new KeyValuePair <int, bool>(weight, isDescending));
if (sortStr.Trim().IsMatch(@"^\d*(asc|dsc|升序|降序|desc)$")) //若该字段仅排序
{
if (fieldFilterMode.HasFlag(FilterType.SorterNoFilterNull))
{
return; //除非不要添加过滤无效值的过滤器
}
else
{
fieldFilterMode |= FilterType.OnlyFilterNull; //默认自动添加一个过滤无效值（null）的过滤器
}
}
}
}
break;
default:
break;
}
ModelFilterDict.Add(modelFieldName, new KeyValuePair <object, FilterType>(compareValue, fieldFilterMode));
}
