queryover

问题 I have this using (ITransaction transaction = session.BeginTransaction()) { Task tAlias = null; CompletedTask cAlias = null; List<Task> tasks = session.QueryOver<Task>(() => tAlias) .Where(Restrictions.In(Projections.Property(() => tAlias.Course.Id), courseIds)) .Fetch(pt => pt.PersonalTaskReminders).Eager .List<Task>().ToList().ConvertToLocalTime(student); transaction.Commit(); return tasks; } PersonalTaskReminders == Collection So a task can have many personalTaskReminders. I am finding

问题 Dear NHibernate experts, The following query gives me all my categories: var result = Session.QueryOver(() => cat).List(); .. and by running this query, I get the ones selected (category_x_product table): int productId = 11; Category cat = null; CategoryProduct cp = null; var subQuery = QueryOver.Of(() => cp) .Where(() => cp.ProductId == productId) .Select(Projections.Distinct(Projections.Property(() => cp.CategoryId))); result = Session.QueryOver(() => cat) .WithSubquery .WhereProperty(() =>

问题 I've got a pretty complex object graph that I want to load in one fell swoop. Samples have Daylogs which have Daylog Tests which have Daylog Results Daylog Tests have Testkeys, Daylog Results have Resultkeys, and TestKeys have Resultkeys. I'm using the QueryOver API and Future to run these all as one query, and all the data that NHibernate should need to instantiate the entire graph IS being returned, verfied by NHProf. public static IList<Daylog> DatablockLoad(Isession sess, ICollection<int>

问题 I'm trying to emulate subject query with NHibernate's IQueryOver . So far I have var q = CurrentSession.QueryOver<ObjectModel.Order>(). WhereRestrictionOn(o => o.Buyer.ID).IsIn(partyIDs). WhereRestrictionOn(o => o.Seller.ID).IsIn(partyIDs); This, however, generates an and query, whereas I need to have an or operator between two where clauses. How is this done with IQueryOver ? 回答1: As it usually is, found question soon after explaining the problem to general public. Thanks, guys! var q =

问题 I have a problem. I have Persons and Cats. Each Person has some Cats (there is a foreign key in Cats that points to the primary key in Persons). Each Cat has an Age. I want to select the Persons that have "Old" Cats. I want ALL the Cats of these persons, and not only the "Old" Cats. I need to do it with the QueryOver syntax. In T-SQL it would be something like: SELECT P.*, C.* FROM Persons P LEFT JOIN Cats C ON P.Id = C.OwnerId WHERE EXISTS ( SELECT 1 FROM Cats C2 WHERE P.Id = C2.OwnerId AND

问题 I'm using the QueryOver api that is part of NHibernate 3.x. I would like to get a row count, but the method I'm using returns all objects and then gets the count of the collection. Is there a way to just return an integer/long value of the number of rows? I'm currently using: _session.QueryOver<MyObject>().Future().Count() 回答1: After a bit of playing around with the api, this will do it: _session.QueryOver<MyObject>() .Select(Projections.RowCount()) .FutureValue<int>() .Value If you don't

问题 so here's the situation: suppose I have a class structure used to represent flexible search: public class SearchDefinition { public virtual string Name {get; set;} public virtual IEnumerable<SearchTerm> Terms {get; set;} } public abstract class SearchTerm { public virtual Operator Op {get; set; } //i.e 'In', 'Not in', 'Contains' etc.. public abstract IEnumerable<object> CompareValues {get; } //the values against which the search is performed. for example- 'in (2,6,4)', 'contains ('foo', 'blah

问题 I have the following query: ObjectB objectBAlias = null; ObjectC objectCAlias = null; var query = session.QueryOver<ObjectA>(); var results = query .JoinAlias(x => x.listOfBs, () => objectBAlias) .JoinAlias(x => objectBAlias.ObjectC, () => objectCAlias) .TransformUsing(new DistinctRootEntityResultTransformer()) .List<ObjectA>(); class ObjectA { IList<ObjectB> listOfBs; } class ObjectB { ObjectA a; ObjectC c; } class ObjectC { int x; } ObjectA has a many-to-many relationship to ObjectC with

问题 I am trying to convert following SQL to QueryOver: Select 1 From myTable mt Where mt.ForeignKey in (select ID from otherTable ot where ot.ID = R.ID) I want to use this subquery inside an EXISTS / NOT EXISTS statement like: select * from table R where .... AND EXISTS (query above) Currently I have something like: mainQuery.WithSubquery.WhereExists(QueryOver.Of<myTable>() .Where(mt => mt.ForeignKey) .WithSubquery.IsIn(QueryOver.Of<otherTable>().Where(c => c.Id == R.SomeId))); I created this

问题 I have a datastructure like this: public class User { public Guid Id {get;set;} public string Name {get;set;} public IList<Books> Books {get;set} } I have been struggeling with making it possible to sort the users by the count of bookmarks (one-to-many relation). I have tried various approaches with both linq, criteria and queryover, but with no luck, and therefore hope one of you could help. I am using paging, since I have quite a few users, so the solution needs to do the query on the SQL