/// <summary>
///
/// </summary>
/// <remarks>
///
/// </remarks>
/// <typeparam name="TEntity"></typeparam>
/// <param name="entity"></param>
/// <returns></returns>
public int Update(TEntity entity)
{
if (DbContext.Entry(entity).State != EntityState.Detached)
{
return(DbContext.SaveChanges());
}
DbContext.Set <TEntity>().Attach(entity);
PropertyInfo[] props = entity.GetType().GetProperties();
foreach (PropertyInfo prop in props)
{
if (prop.GetValue(entity, null) != null)
{
if (typeof(IEntity <>).IsAssignableGenericFrom(prop.PropertyType) ||//这里只对当前实体更新，不对实体内部更新
typeof(IEntity).IsAssignableGenericFrom(prop.PropertyType) ||
typeof(ICollection <>).IsAssignableGenericFrom(prop.PropertyType))
{
continue;
}
if (prop.GetValue(entity, null).ToString() == " ")
{
DbContext.Entry(entity).Property(prop.Name).CurrentValue = null;
}
DbContext.Entry(entity).Property(prop.Name).IsModified = true;
}
}
return(DbContext.SaveChanges());
}
protected MyDataTableResponse <T> QueryPaging(int take, int?skip, Func <IQueryable <T>
, IQueryable <T> > funcForInclude = null,
Func <IQueryable <T>, IQueryable <T> > funcForFilter = null)
{
if (take <= 0)
{
take = 20;
}
if (skip <= 0)
{
throw new Exception("skip صفر یا کوچکتر از صفر پاس شده است");
}
var entities = _context.Set <T>().AsNoTracking().AsQueryable();
if (funcForInclude != null)
{
entities = funcForInclude(entities);
}
if (funcForFilter != null)
{
entities = funcForFilter(entities);
}
IQueryable <T> res;
if (skip.HasValue && skip > 0)
{
res = entities.OrderByDescending(e => e.Id).Skip(skip.Value).Take(take);
}
else
{
res = entities.OrderByDescending(e => e.Id).Take(take);
}
return(new MyDataTableResponse <T>
{
LastSkip = skip,
LastTake = take,
List = res.ToList(),
Total = res.Count(),
});
}