public Results <TEntity> FindAll(int pageIndex, int pageSize, object sortBy = null)
{
BsonDocument doc = new BsonDocument();
IFindFluent <TEntity, TEntity> res = FindFluent(doc, pageIndex, pageSize, sortBy);
return(new Results <TEntity>(res.ToList(), res.Count(), pageIndex, pageSize));
}
/// <summary>
/// 分页获取子类对象列表
/// </summary>
/// <param name="condition">条件表达式</param>
/// <param name="pageIndex">页码</param>
/// <param name="pageSize">页容量</param>
/// <param name="rowCount">总记录条数</param>
/// <param name="pageCount">总页数</param>
/// <returns>子类对象列表</returns>
protected IFindFluent <TSub, TSub> FindByPage <TSub>(Expression <Func <TSub, bool> > condition, int pageIndex, int pageSize, out int rowCount, out int pageCount) where TSub : T
{
IFindFluent <TSub, TSub> list = this.FindAndSort(condition);
rowCount = unchecked ((int)list.Count());
pageCount = (int)Math.Ceiling(rowCount * 1.0 / pageSize);
return(list.Skip((pageIndex - 1) * pageSize).Limit(pageSize));
}
public static PagedList <T> ToPageResult <T>(this IFindFluent <T, T> query, int pageIndex, int pageSize)
{
var pageResult = new PagedList <T>();
var totalCount = query.Count();
var totalPages = (int)totalCount / pageSize;
pageResult.TotalPages = totalCount % pageSize == 0 ? totalPages : totalPages + 1;
pageResult.Rows = query.Skip(pageIndex * pageSize).Limit(pageSize).ToList();
pageResult.PageIndex = pageIndex;
pageResult.TotalCount = (int)totalCount;
return(pageResult);
}
/// <summary>
/// 匹配条件获取分页数据集合（异步）
/// </summary>
/// <param name="Match"></param>
/// <param name="Info"></param>
/// <returns></returns>
public async Task <IList <T> > FindWithPagerAsync(FilterDefinition <T> Match, PagerInfo Info)
{
int pageindex = (Info.CurrenetPageIndex < 1) ? 1 : Info.CurrenetPageIndex;
int pageSize = (Info.PageSize <= 0) ? 20 : Info.PageSize;
int excludedRows = (pageindex - 1) * pageSize;
IFindFluent <T, T> find = GetQueryable(Match);
Info.RecordCount = (int)find.Count();
return(await find.Skip(excludedRows).Limit(pageSize).ToListAsync());
}
long IQuery <T> .Count()
{
IFindFluent <T, T> finder = null;
var collection = _db.GetCollection <T>(typeof(T).Name);
if (whereExp != null)
{
finder = collection.Find <T>(whereExp);
}
else
{
FilterDefinition <T> filter = FilterDefinition <T> .Empty;
finder = collection.Find <T>(filter);
}
return(finder.Count());
}
public object count()
{
return(_documents.Count());
}
public long Count()
{
return(_fluentCursor.Count());
}
public Results <TEntity> Find(Expression <Func <TEntity, bool> > exp, int pageIndex, int pageSize, object sortBy = null)
{
IFindFluent <TEntity, TEntity> res = FindFluent(exp, pageIndex, pageSize, sortBy);
return(new Results <TEntity>(res.ToList(), res.Count(), pageIndex, pageSize));
}
/// <summary>
///
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="collection"></param>
/// <param name="filter"></param>
/// <param name="projection"></param>
private void Apply <T>(IMongoCollection <T> collection, FilterDefinition <T> filter, ProjectionDefinition <T> projection)
{
filter = CreateFilters <T>(Filter, filter);
if (IsAggregate)
{
var sortB = Builders <T> .Sort;
SortDefinition <T> sort = null;
foreach (var item in Order)
{
switch (item.Direction.ToString())
{
case "-":
{
if (sort == null)
{
sort = sortB.Descending(item.Property);
}
else
{
sort = sort.Descending(item.Property);
}
break;
}
case "+":
{
if (sort == null)
{
sort = sortB.Ascending(item.Property);
}
else
{
sort = sort.Ascending(item.Property);
}
break;
}
}
}
var Group = BsonDocumentWrapper.Parse(JsonConvert.SerializeObject(GroupBy));
IAggregateFluent <T> query = null;
var options = new AggregateOptions();
if (sort != null)
{
query = collection.Aggregate().Match(filter).Sort(sort).Group <T>(Group).Project <T>(BsonDocumentWrapper.Parse("{'id':'$_id','count':'$count'}"));
}
else
{
query = collection.Aggregate().Match(filter).Group <T>(Group).Project <T>(BsonDocumentWrapper.Parse("{'id':'$_id','count':'$count'}"));
}
Data = query.ToList <T>();
}
else
{
IFindFluent <T, T> query = null;
if (filter != null)
{
query = collection.Find(filter);
}
else
{
query = collection.Find(x => true);
}
if (projection != null)
{
query = query.Project <T>(projection);
}
var sortB = Builders <T> .Sort;
SortDefinition <T> sort = null;
foreach (var item in Order)
{
switch (item.Direction.ToString())
{
case "-":
{
if (sort == null)
{
sort = sortB.Descending(item.Property);
}
else
{
sort = sort.Descending(item.Property);
}
break;
}
case "+":
{
if (sort == null)
{
sort = sortB.Ascending(item.Property);
}
else
{
sort = sort.Ascending(item.Property);
}
break;
}
}
}
if (sort != null)
{
query.Sort(sort);
}
PageSize = PageSize ?? 1;
RecordCount = query.Count();
if (PageSize != int.MaxValue)
{
PageCount = (RecordCount / PageSize);
PageCount += (PageCount < ((float)RecordCount / (float)PageSize)) ? 1 : 0;
Data = query.Skip((PageIndex - 1) * PageSize).Limit(PageSize).ToList <T>();
}
else
{
PageCount = 1;
Data = query.ToList <T>();
}
}
}
/// <summary>
///
/// </summary>
/// <typeparam name="T"></typeparam>
/// <typeparam name="E"></typeparam>
public void Apply <T, E>()
where T : class, IDto <E, T>, new()
where E : class, IDocumentEntity, IEntity, new()
{
FilterDefinition <E> filter = (CreateFilter == null) ? null : (FilterDefinition <E>)CreateFilter?.Invoke();
ProjectionDefinition <E> projection = (CreateProjection == null) ? null : (ProjectionDefinition <E>)CreateProjection?.Invoke();
filter = CreateFilters <E>(Filter, filter);
if (IsAggregate)
{
var query = MongoDbServices.Instance(IntanceMongoDb).GetCollection <E>().Aggregate().Match(filter).Group(projection);
}
else
{
IFindFluent <E, E> query = null;
if (filter != null)
{
query = MongoDbServices.Instance(IntanceMongoDb).GetCollection <E>().Find(filter);
}
else
{
query = MongoDbServices.Instance(IntanceMongoDb).GetCollection <E>().Find(x => true);
}
if (projection != null)
{
query.Project(projection);
}
var sortB = Builders <E> .Sort;
SortDefinition <E> sort = null;
foreach (var item in Order)
{
switch (item.Direction.ToString())
{
case "-":
{
if (sort == null)
{
sort = sortB.Descending(item.Property);
}
else
{
sort = sort.Descending(item.Property);
}
break;
}
case "+":
{
if (sort == null)
{
sort = sortB.Ascending(item.Property);
}
else
{
sort = sort.Ascending(item.Property);
}
break;
}
}
}
if (sort != null)
{
query.Sort(sort);
}
PageSize = PageSize ?? 1;
RecordCount = query.Count();
PageCount = (RecordCount / PageSize);
PageCount += (PageCount < ((float)RecordCount / (float)PageSize)) ? 1 : 0;
Data = new T().SetEntity(query.Skip((PageIndex - 1) * PageSize).Limit(PageSize).ToList <E>());
}
}
