private IQueryable <TEntity> SyncWith(Sync sync)
{
if (!sync.Target.HasProjection)
{
var fields = GetSharedColumns(sync.Source, sync.Target.From.Table);
Func <string, IList <SelectProjection> > createProjection =
alias => fields.Select(x => new SelectProjection {
Projection = new Projection {
Type = Projection.ProjectionType.Field,
Field = new Field {
Name = x.Projection.Field.Name,
Key = x.Projection.Field.Key,
HasKey = x.Projection.Field.HasKey,
TableAlias = alias
}
}
}).ToList();
sync.Target.Projection = createProjection(sync.Target.From.Alias);
sync.Source.Projection = createProjection(sync.Source.From.Alias);
}
var statement = SyncWriter <TEntity> .CreateStatement(sync, _map);
Command.Create(statement, _profiler).ExecuteNonQuery(_connectionManager);
return(new Table <TEntity>(_connectionManager, sync.Target
.From.Table.Name, _map, _profiler, _noLock));
}
public void should_render_sync_include_sql()
{
var target = MockQueryable <Entity> .Create(TableName1);
var source = MockQueryable <Entity> .Create(TableName2);
var importId = Guid.NewGuid();
target.Where(x => x.ImportId != importId).SyncWith(source.Where(x => x.ImportId == importId), x => x.Created, SyncFields.Include, x => x.Name, x => x.Flag);
var query = QueryVisitor <Entity> .CreateModel(target.Expression, x => ((MockQueryable <Entity>)x).Name);
query.Operation.ShouldEqual(Query.OperationType.SyncWith);
query.SyncWith.ShouldNotBeNull();
var sync = query.SyncWith;
var statement = SyncWriter <Entity> .CreateStatement(sync, Map);
statement.Result.ShouldEqual(Statement.ResultType.None);
statement.Parameters.Count.ShouldEqual(2);
statement.Parameters.First().Value.ShouldEqual(importId);
statement.Parameters.Skip(1).First().Value.ShouldEqual(importId);
statement.Text.ShouldEqual(string.Format(
"UPDATE [{0}] SET [{0}].[name] = [{1}].[name], [{0}].[flag] = [{1}].[flag] FROM [{2}] [{0}] INNER JOIN [{3}] [{1}] ON [{0}].[created] = [{1}].[created] AND " +
"([{1}].[import_id] = @{4}) WHERE (([{0}].[import_id] <> @{5}) OR [{0}].[import_id] IS NULL)",
sync.Target.From.Alias, sync.Source.From.Alias, TableName1, TableName2,
statement.Parameters.First().Key, statement.Parameters.Skip(1).First().Key));
}
