/// <summary>
/// Builds key mappings between source model and target <see cref="KeyOutput"/> model.
/// </summary>
/// <param name="mapper">The column mapper.</param>
/// <param name="source">The source model.</param>
/// <param name="target">The target <see cref="KeyOutput"/> model.</param>
public static void BuildKeyMappings(ColumnMapper mapper, Model source, KeyOutput target)
{
var sourceKey = source.PrimaryKey;
if (sourceKey == null)
{
throw new InvalidOperationException(DiagnosticMessages.DbTable_NoPrimaryKey(source));
}
var targetKey = target.PrimaryKey;
if (targetKey == null)
{
throw new InvalidOperationException(DiagnosticMessages.DbTable_NoPrimaryKey(target));
}
if (targetKey.Count != sourceKey.Count)
{
throw new InvalidOperationException(DiagnosticMessages.DbTable_GetKeyMappings_CannotMatch);
}
for (int i = 0; i < targetKey.Count; i++)
{
var targetColumn = targetKey[i].Column;
var sourceColumn = sourceKey[i].Column;
if (targetColumn.DataType != sourceColumn.DataType)
{
throw new InvalidOperationException(DiagnosticMessages.DbTable_GetKeyMappings_CannotMatch);
}
mapper.Select(sourceColumn, i);
}
}
private async Task <DbTable <KeyOutput> > CreateKeyOutputAsync(Model sourceModel, CancellationToken cancellationToken)
{
var keyOutput = new KeyOutput(sourceModel);
var result = CreateTempTableInstance(keyOutput);
await CreateTableAsync(keyOutput, true, cancellationToken);
return(result);
}
private static ColumnSort[] GetColumns(KeyOutput _, CandidateKey primaryKey)
{
var result = new ColumnSort[primaryKey.Count];
for (int i = 0; i < primaryKey.Count; i++)
{
var columnSort = primaryKey[i];
result[i] = new ColumnSort(columnSort.Column.Clone(_), columnSort.Direction);
}
return(result);
}
public PK(KeyOutput keyOutput, CandidateKey primaryKey)
: base(GetColumns(keyOutput, primaryKey))
{
}
