private DmlfInsertSelect CompileInsert()
{
var res = new DmlfInsertSelect();
res.TargetTable = TargetTableSqlName;
res.LinkedInfo = TargetLinkedInfo;
res.Select = new DmlfSelect();
res.Select.From.Add(SourceJoinModel.SourceToRefsJoin);
foreach (var col in TargetColumns)
{
res.TargetColumns.Add(col.Name);
var expr = col.CreateSourceExpression(SourceJoinModel, RequiresGrouping && !col.IsKey && !col.IsRestriction);
res.Select.Columns.Add(new DmlfResultField
{
Expr = expr,
});
}
if (RequiresGrouping)
{
res.Select.GroupBy = new DmlfGroupByCollection();
foreach (var col in TargetColumns.Where(x => x.IsKey || (x.IsRestriction && x.IsReference)))
{
var expr = col.CreateSourceExpression(SourceJoinModel, false);
res.Select.GroupBy.Add(new DmlfGroupByItem
{
Expr = expr,
});
}
}
CreateNotNullConditions(res.Select);
var existSelect = new DmlfSelect();
existSelect.SingleFrom.Source = new DmlfSource
{
TableOrView = TargetTableSqlName,
Alias = "tested",
LinkedInfo = TargetLinkedInfo,
};
existSelect.SelectAll = true;
CreateKeyCondition(existSelect, "tested");
CreateLifetimeConditions(existSelect, "tested");
CreateFilterConditions(res.Select);
res.Select.AddAndCondition(new DmlfNotExistCondition { Select = existSelect });
return res;
}
public void GetInsertCommands(DmlfBatch res, DatabaseInfo db, ChangeSetModel model, IDialectDataAdapter dda, ICdlValueConvertor converter)
{
var table = db.FindTable(TargetTable);
if (table == null) return;
if (IsDuplicatingIdentity(db, model))
{
res.AllowIdentityInsert(table.FullName, true);
var insert = new DmlfInsertSelect
{
TargetTable = table.FullName,
};
insert.Select = new DmlfSelect();
insert.Select.SingleFrom = new DmlfFromItem
{
Source = new DmlfSource
{
TableOrView = table.FullName,
Alias = "basetbl",
}
};
GetConditions(insert.Select, this, Conditions, db);
foreach (var col in table.Columns)
{
var valcol = Values.FirstOrDefault(x => x.Column == col.Name);
insert.TargetColumns.Add(col.Name);
if (valcol == null)
{
insert.Select.Columns.Add(DmlfResultField.BuildFromColumn(col.Name, insert.Select.SingleFrom.Source));
}
else
{
insert.Select.Columns.Add(new DmlfResultField
{
Expr = new DmlfLiteralExpression
{
Value = valcol.Value,
}
});
}
}
res.Commands.Add(insert);
res.AllowIdentityInsert(table.FullName, false);
}
}
