/// <summary>
/// 删除
/// </summary>
/// <param name="category">类别实体</param>
public virtual void DeleteCategory(Category category)
{
if (category == null)
throw new ArgumentNullException("category");
_categoryRepository.Delete(category);
}
/// <summary>
/// 插入
/// </summary>
/// <param name="category">类别实体</param>
public virtual void InsertCategory(Category category)
{
if (category == null)
throw new ArgumentNullException("category");
_categoryRepository.Insert(category);
}
/// <summary>
/// 类别面包屑格式-类别名称
/// </summary>
/// <param name="category">类别</param>
/// <param name="separator">分隔符号</param>
/// <returns>面包屑格式</returns>
public virtual string GetFormattedBreadCrumb(Category category, string separator = ">>")
{
if (category == null)
throw new ArgumentNullException("category");
string result = string.Empty;
var alreadyProcessedCategoryIds = new List<int>() { };
while (category != null && //not null
!category.Deleted && //not deleted
!alreadyProcessedCategoryIds.Contains(category.Id)) //prevent circular references
{
if (String.IsNullOrEmpty(result))
{
result = category.Name;
}
else
{
result = string.Format("{0} {1} {2}", category.Name, separator, result);
}
alreadyProcessedCategoryIds.Add(category.Id);
category = _categoryRepository.GetById(category.ParentId);
}
return result;
}
