mgernand / litedb.queryable Goto Github PK
View Code? Open in Web Editor NEWAn IQueryable wrapper implementation for LiteDB with additional async extensions.
License: MIT License
An IQueryable wrapper implementation for LiteDB with additional async extensions.
License: MIT License
Example code:
LiteDatabaseAsync database = new LiteDatabaseAsync("test.db");
ILiteCollectionAsync<Person> collection = database.GetCollection<Person>("people");
IQueryable<Person> queryable = collection.AsQueryable();
var result = queryable.Include(i => i.ChildItems).ToListAsync()
The following error message is thrown:
System.NotSupportedException: 'The LINQ extension method 'Include' is not supported.'
Hello,
I get the following exception when I use the same ordered query multiple times. It seems like the query builder tries to apply the ordering twice, once per call to Count
instead of just once.
Is it a bug or am I missing something ?
Thank you for your time!
Reproduction:
LiteDatabase db = new("test.db");
ILiteCollection<TestObject> col = db.GetCollection<TestObject>();
IQueryable<TestObject> query = col.AsQueryable();
IOrderedQueryable<TestObject> orderedQuery = query.OrderBy(o => o.Field);
Console.WriteLine(orderedQuery.Count());
Console.WriteLine(orderedQuery.Count());
class TestObject
{
public string Field { get; set; }
}
0
Unhandled exception. System.ArgumentException: ORDER BY already defined in this query builder
at LiteDB.LiteQueryable`1.OrderBy(BsonExpression keySelector, Int32 order)
at LiteDB.Queryable.LiteQueryBuilder`1.ApplyOrderBy(Expression expression, Boolean isAsync)
at LiteDB.Queryable.LiteQueryBuilder`1.Execute[TResult](Expression expression, Boolean isAsync)
at LiteDB.Queryable.LiteQueryBuilder`1.Execute[TResult](Expression expression)
at LiteDB.Queryable.LiteQueryProvider`1.Execute[TResult](Expression expression)
at Program.<Main>$(String[] args)
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