/// <summary>
/// 删除一个文章
/// </summary>
/// <param name="article"></param>
/// <returns></returns>
public bool DelArticle(Article article)
{
try
{
using (ACSDbContext db = new ACSDbContext ())
{
db.Articles.Attach(article);
db.Articles.Remove(article);
db.SaveChanges();
}
return true;
}
catch (Exception)
{
return false;
}
}
private bool disposedValue = false; // 要检测冗余调用
#endregion Fields
#region Methods
/// <summary>
/// 添加一个新网站
/// </summary>
/// <param name="site"></param>
/// <returns></returns>
public bool AddSite(Site site)
{
try
{
using (ACSDbContext db = new ACSDbContext())
{
db.Sites.Attach(site);
db.Sites.Add(site);
db.SaveChanges();
}
return true;
}
catch (Exception)
{
return false;
}
}
private bool disposedValue = false; // 要检测冗余调用
#endregion Fields
#region Methods
/// <summary>
/// 添加一个文章类型对象
/// </summary>
/// <param name="type"></param>
/// <returns>返回是否添加成功</returns>
public bool AddType(szosi.ArticleCollectSystem.Entities.Type type)
{
try
{
using (ACSDbContext db = new ACSDbContext ())
{
db.Types.Attach(type);
db.Types.Add(type);
db.SaveChanges();
}
return true;
}
catch (Exception)
{
return false;
}
}
public bool UpdateArticle(Article article)
{
try
{
using (ACSDbContext db = new ACSDbContext())
{
DbEntityEntry<Article> entry = db.Entry<Article>(article);
entry.State = EntityState.Unchanged;
entry.Property("Title").IsModified = true;
entry.Property("Content").IsModified = true;
entry.Property("Time").IsModified = true;
db.SaveChanges();
}
return true;
}
catch (Exception)
{
return false;
}
}
/// <summary>
/// 更新网站地址
/// </summary>
/// <param name="site"></param>
/// <param name="address"></param>
/// <returns></returns>
public bool UpdateSiteAddress(Site site, string address)
{
try
{
site.Address = address;
// 这种更新数据的方法不用先查询，直接修改
using (ACSDbContext db = new ACSDbContext())
{
DbEntityEntry<Site> entry = db.Entry<Site>(site);
entry.State = EntityState.Unchanged;
entry.Property("Address").IsModified = true;
db.SaveChanges();
}
return true;
}
catch (Exception)
{
throw;
}
}
