public ISpecification <T> Skip <T>(ISpecification <T> spec, int count)
{
MongoSpecification <T> mongoSpec = (MongoSpecification <T>)spec;
mongoSpec.Skip = count;
return(mongoSpec);
}
public ISpecification <T> Shard <T>(ISpecification <T> spec, ShardParams shardParams)
{
MongoSpecification <T> mongoSpec = (MongoSpecification <T>)spec;
mongoSpec.ShardParams = shardParams;
return(mongoSpec);
}
public ISpecification <T> Take <T>(ISpecification <T> spec, int count)
{
MongoSpecification <T> mongoSpec = (MongoSpecification <T>)spec;
mongoSpec.Take = count;
return(mongoSpec);
}
public IOrderedSpecification <T> ThenBy <T, K>(IOrderedSpecification <T> spec, Expression <Func <T, K> > keySelector, QueryOrder order)
{
MongoSpecification <T> mongoSpec = (MongoSpecification <T>)spec;
((IList <QueryOrderExpression>)mongoSpec.ThenByExpressions).Add(QueryOrderExpression.CreateTheneBy(keySelector, order));
return(mongoSpec);
}
public IOrderedSpecification <T> OrderBy <T, K>(ISpecification <T> spec, Expression <Func <T, K> > keySelector, QueryOrder order)
{
MongoSpecification <T> mongoSpec = (MongoSpecification <T>)spec;
mongoSpec.OrderByExpression = QueryOrderExpression.CreateOrderBy(keySelector, order);
return(mongoSpec);
}
public virtual int Count <T>(ISpecification <T> spec)
{
MongoSpecification <T> mongoSpec = (MongoSpecification <T>)spec;
var cq = mongoSpec.GetQuery();
if (mongoSpec.CriteriaExpression != null)
{
cq = cq.Where(mongoSpec.CriteriaExpression);
}
return(cq.Count());
}
public virtual PagingResult <T> FindPaging <T>(ISpecification <T> spec)
{
MongoSpecification <T> mongoSpec = (MongoSpecification <T>)spec;
int count = 0;
if (mongoSpec.Take > 0)
{
var cq = mongoSpec.GetQuery();
if (mongoSpec.CriteriaExpression != null)
{
cq = cq.Where(mongoSpec.CriteriaExpression);
}
count = cq.Count();
}
PagingResult <T> result = new PagingResult <T>(count);
result.AddRange(mongoSpec.Query.ToList());
return(result);
}
