/// <summary>
/// 根据主键获取Entity
/// </summary>
/// <param name="Id">主键Id</param>
/// <returns>Entity</returns>
protected virtual TModel GetById(object Id)
{
TModel rv = null;
//建立基础查询
var query = DC.Set <TModel>().AsQueryable();
//循环添加其他设定的Include
if (_toInclude != null)
{
foreach (var item in _toInclude)
{
query = query.Include(item);
}
}
if (typeof(TModel).IsSubclassOf(typeof(PersistPoco)))
{
var mod = new IsValidModifier();
var newExp = mod.Modify(query.Expression);
query = query.Provider.CreateQuery <TModel>(newExp) as IOrderedQueryable <TModel>;
}
//获取数据
rv = query.CheckID(Id).AsNoTracking().SingleOrDefault();
if (rv == null)
{
throw new Exception("数据不存在");
}
//如果TopBasePoco有关联的附件，则自动Include 附件名称
var fa = typeof(TModel).GetProperties().Where(x => x.PropertyType == typeof(FileAttachment)).ToList();
foreach (var f in fa)
{
var fname = DC.GetFKName2 <TModel>(f.Name);
var fid = typeof(TModel).GetProperty(fname).GetValue(rv) as Guid?;
var file = DC.Set <FileAttachment>().Where(x => x.ID == fid).Select(x => new FileAttachment {
ID = x.ID,
CreateBy = x.CreateBy,
CreateTime = x.CreateTime,
UpdateBy = x.UpdateBy,
UpdateTime = x.UpdateTime,
UploadTime = x.UploadTime,
FileExt = x.FileExt,
FileName = x.FileName,
Length = x.Length,
GroupName = x.GroupName,
IsTemprory = x.IsTemprory,
Path = x.Path,
SaveFileMode = x.SaveFileMode
}).FirstOrDefault();
rv.SetPropertyValue(f.Name, file);
}
return(rv);
}
/// <summary>
/// 进行搜索
/// </summary>
public virtual void DoSearch()
{
IOrderedQueryable <TModel> query = null;
//根据搜索模式调用不同的函数
switch (SearcherMode)
{
case ListVMSearchModeEnum.Search:
query = GetSearchQuery();
break;
case ListVMSearchModeEnum.Export:
query = GetExportQuery();
break;
case ListVMSearchModeEnum.Batch:
query = GetBatchQuery();
break;
case ListVMSearchModeEnum.MasterDetail:
query = GetMasterDetailsQuery();
break;
case ListVMSearchModeEnum.CheckExport:
query = GetCheckedExportQuery();
break;
case ListVMSearchModeEnum.Selector:
query = GetSelectorQuery();
break;
default:
query = GetSearchQuery();
break;
}
//如果设定了替换条件，则使用替换条件替换Query中的Where语句
if (ReplaceWhere != null)
{
var mod = new WhereReplaceModifier(ReplaceWhere);
var newExp = mod.Modify(query.Expression);
query = query.Provider.CreateQuery <TModel>(newExp) as IOrderedQueryable <TModel>;
}
if (string.IsNullOrEmpty(Searcher.SortInfo) == false)
{
var mod = new OrderReplaceModifier(Searcher.SortInfo);
var newExp = mod.Modify(query.Expression);
query = query.Provider.CreateQuery <TModel>(newExp) as IOrderedQueryable <TModel>;
}
if (typeof(TModel).IsSubclassOf(typeof(PersistPoco)))
{
var mod = new IsValidModifier();
var newExp = mod.Modify(query.Expression);
query = query.Provider.CreateQuery <TModel>(newExp) as IOrderedQueryable <TModel>;
}
if (PassSearch == false)
{
//如果需要分页，则添加分页语句
if (NeedPage && Searcher.Limit != -1)
{
//获取返回数据的数量
var count = query.Count();
if (count < 0)
{
count = 0;
}
if (Searcher.Limit == 0)
{
Searcher.Limit = ConfigInfo.RPP;
}
//根据返回数据的数量，以及预先设定的每页行数来设定数据量和总页数
Searcher.Count = count;
Searcher.PageCount = (int)Math.Ceiling((1.0 * Searcher.Count / Searcher.Limit));
if (Searcher.Page <= 0)
{
Searcher.Page = 1;
}
if (Searcher.PageCount > 0 && Searcher.Page > Searcher.PageCount)
{
Searcher.Page = Searcher.PageCount;
}
EntityList = query.Skip((Searcher.Page - 1) * Searcher.Limit).Take(Searcher.Limit).AsNoTracking().ToList();
}
else //如果不需要分页则直接获取数据
{
EntityList = query.AsNoTracking().ToList();
Searcher.Count = EntityList.Count();
Searcher.Limit = EntityList.Count();
Searcher.Page = 1;
}
}
else
{
EntityList = query.AsNoTracking().ToList();
}
IsSearched = true;
//调用AfterDoSearch函数来处理自定义的后续操作
AfterDoSearcher();
}