private static void Format(this MergeMatchResult result, TypeMeta typeMeta, Action <MergeActionOptions> optionsAction, StringBuilder sb)
{
if (optionsAction == null)
{
return;
}
var options = new MergeActionOptions();
optionsAction(options);
if (options.Action == MergeAction.None)
{
return;
}
if (options.Columns == null)
{
options.Columns = typeMeta.PropertiesExceptKeyAndComputed;
}
switch (result)
{
case MergeMatchResult.Matched:
sb.Append("WHEN MATCHED");
break;
case MergeMatchResult.NotMatchedBySource:
sb.AppendLine("WHEN NOT MATCHED BY SOURCE");
break;
case MergeMatchResult.NotMatchedByTarget:
sb.AppendLine("WHEN NOT MATCHED BY TARGET");
break;
}
if (!string.IsNullOrEmpty(options.Condition))
{
sb.AppendFormat(" AND ({0})", options.Condition);
}
sb.AppendLine(" THEN");
MergeActionFormat(options, sb);
}
private static void MergeActionFormat(MergeActionOptions options, StringBuilder sb)
{
switch (options.Action)
{
case MergeAction.Insert:
sb.AppendFormat("INSERT({0})", options.Columns.ColumnList());
sb.AppendLine();
sb.AppendFormat("VALUES({0})", options.Columns.ColumnList("Source"));
sb.AppendLine();
break;
case MergeAction.Update:
sb.AppendLine("UPDATE SET");
sb.AppendLine(options.Columns.ColumnListEquals(", ", leftPrefix: string.Empty));
break;
case MergeAction.Delete:
sb.AppendLine("DELETE");
break;
}
}
public static void Format <T>(this MergeMatchResult result, TypeMeta typeMeta, Action <MergeActionOptions <T> > optionsAction, StringBuilder sb)
{
if (optionsAction == null)
{
return;
}
var options = new MergeActionOptions <T>();
optionsAction(options);
if (options.Action == MergeAction.None)
{
return;
}
switch (result)
{
case MergeMatchResult.Matched:
sb.AppendLine("WHEN MATCHED");
break;
case MergeMatchResult.NotMatchedBySource:
sb.AppendLine("WHEN NOT MATCHED BY SOURCE");
break;
case MergeMatchResult.NotMatchedByTarget:
sb.AppendLine("WHEN NOT MATCHED BY TARGET");
break;
}
if (!string.IsNullOrEmpty(options.Condition))
{
sb.AppendFormat(" AND ({0})", options.Condition);
}
sb.AppendLine(" THEN");
options.Format(sb);
}
