private void SetEmbeddedDocuments(SqlMigrationDocument document, SqlTable parentTable)
{
foreach (var childTable in parentTable.EmbeddedTables)
{
var parentValues = GetValuesFromColumns(parentTable.GetReader(), parentTable.PrimaryKeys);
var childColumns = childTable.GetColumnsReferencingParentTable();
SqlReader childReader;
if (childColumns.Count > parentTable.PrimaryKeys.Count || parentTable.IsEmbedded)
{
childReader = childTable.GetReaderWhere(parentValues);
}
else
{
childReader = childTable.GetReader();
}
if (childReader.HasValue() == false && childReader.Read() == false)
{
continue;
}
var continueLoop = false;
while (CompareValues(parentValues, GetValuesFromColumns(childReader, childColumns), out var isBigger) == false)
{
if (isBigger == false && childReader.Read())
{
continue;
}
continueLoop = true; // If parent value is greater than child value => childReader move to next, otherwise, parentReader move to next
break;
}
if (continueLoop)
{
continue;
}
do
{
var innerDocument = FromReaderInternal(childReader, childTable);
document.Append(childTable.NewName, innerDocument);
if (childReader.Read() == false)
{
break;
}
} while (CompareValues(parentValues, GetValuesFromColumns(childReader, childColumns), out _));
}
}
private void SetEmbeddedDocuments(SqlMigrationDocument document, SqlTable parentTable)
{
foreach (var childTable in parentTable.EmbeddedTables)
{
var parentValues = GetValuesFromColumns(parentTable.GetReader(), parentTable.PrimaryKeys); // values of referenced columns
var childColumns = childTable.GetColumnsReferencingParentTable(); // values of referencing columns
SqlReader childReader;
if (childColumns.Count > parentTable.PrimaryKeys.Count || parentTable.IsEmbedded)
{
childReader = childTable.GetReaderWhere(parentValues); // This happens in a case when we can not iterate the embedded table only once and have to use multiple queries.
}
else
{
childReader = childTable.GetReader();
}
if (childReader.HasValue() == false && childReader.Read() == false)
{
continue;
}
var continueLoop = false;
while (CompareValues(parentValues, GetValuesFromColumns(childReader, childColumns), out var isBigger) == false)
{
if (isBigger == false && childReader.Read())
{
continue;
}
continueLoop = true; // If parent value is greater than child value => childReader move to next. Otherwise => parentReader move to next
break;
}
if (continueLoop)
{
continue;
}
do
{
var innerDocument = FromReaderInternal(childReader, childTable);
document.Append(childTable.NewName, innerDocument);
if (childReader.Read() == false)
{
break;
}
} while (CompareValues(parentValues, GetValuesFromColumns(childReader, childColumns), out _));
}
}
