private async Task <IEnumerable <PTableMetadata> > GetMetaData(IMetaDataInitializer initializer, CancellationToken cancellationToken)
{
var result = new List <PTableMetadata>();
using (var uof = _uowFactory.GetUnitOfWork())
{
var metaTables = uof.GetSchemaAsync("Tables", cancellationToken);
var metaColumns = uof.ExecuteReaderAsync(MSSQLSourceSchema.sqlPKColumns, cancellationToken);
await Task.WhenAll(metaColumns, metaTables);
var dt = new DataTable();
dt.Load(metaColumns.Result);
var iList = dt.Rows.Cast <DataRow>();
foreach (DataRow t in metaTables.Result.Rows)
{
var pTab = new PTableMetadata()
{
TableName = t["table_name"].ToString()
};
foreach (DataRow c in iList.Where(_ => _["TableName"].ToString() == pTab.TableName &&
!_globalConfiguration.FieldsToExclude.Any(f => f == _["ColumnName"].ToString())))
{
var field = initializer.InitTableMetaData(c);
pTab.Add(field);
}
var uqCol = _globalConfiguration.UniqueColums.FirstOrDefault(_ => _.TableName == pTab.TableName);
if (uqCol != null)
{
pTab.UniqueColumnsCollection = new List <string>(uqCol.UniqueColumns);
}
result.Add(pTab);
}
}
return(result);
}
public async Task <PTableMetadata> GetTableMetaData(string tableName, CancellationToken cancellationToken)
{
string sql = string.Format("{0} and object_name(C.[object_id]) = '{1}'", MSSQLSourceSchema.sqlPKColumns, tableName);
using (var uof = _uowFactory.GetUnitOfWork())
using (var dr = await uof.ExecuteReaderAsync(sql, cancellationToken))
{
var ptable = new PTableMetadata()
{
TableName = tableName
};
var dt = new DataTable();
dt.Load(dr);
foreach (DataRow r in dt.Rows)
{
var field = _initializer.InitTableMetaData(r);
ptable.Add(field);
}
return(ptable);
}
}
