public override IQueryFilter GetUniqueFilter() { if (UniqueFilterProvider != null) { return(UniqueFilterProvider(this)); } else { var colFilter = new SaveOperationColumns(); return(colFilter.KeyColumn == IdValue); } }
public static long Count(WhereDelegate <SaveOperationColumns> where, Database database = null) { SaveOperationColumns c = new SaveOperationColumns(); IQueryFilter filter = where (c); Database db = database ?? Db.For <SaveOperation>(); QuerySet query = GetQuerySet(db); query.Count <SaveOperation>(); query.Where(filter); query.Execute(db); return(query.Results.As <CountResult>(0).Value); }
public static SaveOperation GetOneWhere(WhereDelegate <SaveOperationColumns> where, Database database = null) { var result = OneWhere(where, database); if (result == null) { SaveOperationColumns c = new SaveOperationColumns(); IQueryFilter filter = where (c); result = CreateFromFilter(filter, database); } return(result); }
public static async Task BatchQuery <ColType>(int batchSize, WhereDelegate <SaveOperationColumns> where, Action <IEnumerable <SaveOperation> > batchProcessor, Bam.Net.Data.OrderBy <SaveOperationColumns> orderBy, Database database = null) { await Task.Run(async() => { SaveOperationColumns columns = new SaveOperationColumns(); var results = Top(batchSize, where, orderBy, database); while (results.Count > 0) { await Task.Run(() => { batchProcessor(results); }); ColType top = results.Select(d => d.Property <ColType>(orderBy.Column.ToString())).ToArray().Largest(); results = Top(batchSize, (SaveOperationColumns) where (columns) && orderBy.Column > top, orderBy, database); } }); }
public static async Task BatchQuery(int batchSize, WhereDelegate <SaveOperationColumns> where, Action <IEnumerable <SaveOperation> > batchProcessor, Database database = null) { await Task.Run(async() => { SaveOperationColumns columns = new SaveOperationColumns(); var orderBy = Bam.Net.Data.Order.By <SaveOperationColumns>(c => c.KeyColumn, Bam.Net.Data.SortOrder.Ascending); var results = Top(batchSize, where, orderBy, database); while (results.Count > 0) { await Task.Run(() => { batchProcessor(results); }); long topId = results.Select(d => d.Property <long>(columns.KeyColumn.ToString())).ToArray().Largest(); results = Top(batchSize, (SaveOperationColumns) where (columns) && columns.KeyColumn > topId, orderBy, database); } }); }
public static SaveOperationCollection Top(int count, WhereDelegate <SaveOperationColumns> where, OrderBy <SaveOperationColumns> orderBy, Database database = null) { SaveOperationColumns c = new SaveOperationColumns(); IQueryFilter filter = where (c); Database db = database ?? Db.For <SaveOperation>(); QuerySet query = GetQuerySet(db); query.Top <SaveOperation>(count); query.Where(filter); if (orderBy != null) { query.OrderBy <SaveOperationColumns>(orderBy); } query.Execute(db); var results = query.Results.As <SaveOperationCollection>(0); results.Database = db; return(results); }