public string PreviewSQL()
{
if (wizardViewModel.ConnectionPageViewModel.ExcelReader == null)
{
throw new Exception("No excel file selected.");
}
else
{
SourceDataTable dataTable = wizardViewModel.ConnectionPageViewModel.ExcelReader.ReadFirstRowToDataTable();
SQLServerStatementCreator statementCreator = new SQLServerStatementCreator(createImportConfiguration(), dataTable);
ImportStatement previewStatement = statementCreator.CreateStatement(0);
return previewStatement.SqlStatement;
}
}
public void bw_DoWork(object sender, DoWorkEventArgs e)
{
isImporting = true;
importStates.Add("Starting import...");
NotifyPropertyChanged("ImportStates");
importStates.Add("Reading excel file");
NotifyPropertyChanged("ImportStates");
SourceDataTable dataTable = reader.ReadToDataTable();
importRowCount = dataTable.NumberOfRows;
NotifyPropertyChanged("ImportRowCount");
importStates.Add("Creating SQL statements");
NotifyPropertyChanged("ImportStates");
BackgroundWorker worker = sender as BackgroundWorker;
SQLServerStatementCreator statementCreator = new SQLServerStatementCreator(config, dataTable);
ImportStatement[] statements = statementCreator.CreateStatements();
importStates.Add("Importing data...");
NotifyPropertyChanged("ImportStates");
SQLServerDataImporter dataImporter = new SQLServerDataImporter(config);
foreach (ImportStatement statement in statements)
{
ImportResult result = dataImporter.ImportData(statement);
importResults.Add(result);
importProgress++;
NotifyPropertyChanged("ImportProgress");
importStates[3] = String.Format("Importing data... row {0} of {1}", importProgress, statements.Length);
NotifyPropertyChanged("ImportStates");
}
importStates.Add("Import complete");
NotifyPropertyChanged("ImportStates");
finishImport();
}
public void StatementCreatorOrderTest()
{
DBTable table = new DBTable("dbo", "TestTable");
DBColumn col1 = new DBColumn(table, "TestCol1", true, DBDatatype.integer);
DBColumn col2 = new DBColumn(table, "TestCol2", false, DBDatatype.nvarchar);
DBColumn col3 = new DBColumn(table, "TestCol3", false, DBDatatype.integer);
table.Columns = new List<DBColumn>() { col1, col2, col3 };
Database db = new Database("TestDB", new List<DBTable>() { table });
TableMapping sourceTablemapping = new TableMapping(new DBTable("dbo", "TestTable2"), TableMappingImportType.Insert, null);
ColumnMapping colMap1 = new TableColumnMapping(sourceTablemapping, col1, col1, ColumnUse.Where);
ColumnMapping colMap2 = new LiteralColumnMapping("2", LiteralType.String, col2, ColumnUse.Where);
ColumnMapping colMap3 = new LiteralColumnMapping("3", LiteralType.String, col2, ColumnUse.Set);
TableMapping tableMapping = new TableMapping(table, TableMappingImportType.Update, new ColumnMapping[] { colMap1, colMap2, colMap3 });
ErrorHandling errorHandling = new ErrorHandling();
ImportConfiguration config = new ImportConfiguration(new TableMapping[] { tableMapping }, null, "TestDB", errorHandling);
SourceDataEntry[] entries = new SourceDataEntry[] {SourceDataEntry.CreateDataEntry("", DataType.String, "") };
SourceDataRow[] rows = new SourceDataRow[] { new SourceDataRow(entries, "0") };
SourceDataTable dt = new SourceDataTable(rows, new string[] { "" });
SQLServerStatementCreator statementCreator = new SQLServerStatementCreator(config, dt);
ImportStatement statement = statementCreator.CreateStatement(0);
ImportStatement[] statements = statementCreator.CreateStatements();
Assert.AreEqual(1, statements.Length);
Assert.AreEqual(statement.RowReference, statements[0].RowReference);
Assert.AreEqual(statement.SqlStatement, statements[0].SqlStatement);
string[] lines = statement.SqlStatement
.Split(new string[] { "\n" }, StringSplitOptions.None).Where(s => s.Length > 0).ToArray();
StatementSetupPart setupPart = new StatementSetupPart(config);
Assert.AreEqual(setupPart.GetDatabasePart(), lines[0]);
Assert.AreEqual(setupPart.GetWarningsPart(), lines[1]);
StatementTransactionPart transPart = new StatementTransactionPart(config);
string[] transStartPart = transPart.GetTransactionStartPart()
.Split(new string[] { "\n" }, StringSplitOptions.None).Where(s => s.Length > 0).ToArray(); ;
Assert.AreEqual(2, transStartPart.Length);
Assert.AreEqual(transStartPart[0], lines[2]);
Assert.AreEqual(transStartPart[1], lines[3]);
StatementTableMappingPart tmParts = new StatementTableMappingPart(tableMapping, dt.GetDataRow(0));
string variablePart = tmParts.GetTableVariablePart().Replace("\n", "");
Assert.AreEqual(variablePart, lines[4]);
string[] bodyParts = tmParts.GetStatementBodyPart()
.Split(new string[] { "\n" }, StringSplitOptions.None).Where(s => s.Length > 0).ToArray();
Assert.AreEqual(4, bodyParts.Length);
Assert.AreEqual(bodyParts[0], lines[5]);
Assert.AreEqual(bodyParts[1], lines[6]);
Assert.AreEqual(bodyParts[2], lines[7]);
Assert.AreEqual(bodyParts[3], lines[8]);
string[] transEndPart = transPart.GetTransactionEndPart()
.Split(new string[] { "\n" }, StringSplitOptions.None).Where(s => s.Length > 0).ToArray();
Assert.AreEqual(12, transEndPart.Length);
Assert.AreEqual(transEndPart[0], lines[9]);
Assert.AreEqual(transEndPart[1], lines[10]);
Assert.AreEqual(transEndPart[2], lines[11]);
Assert.AreEqual(transEndPart[3], lines[12]);
Assert.AreEqual(transEndPart[4], lines[13]);
Assert.AreEqual(transEndPart[5], lines[14]);
Assert.AreEqual(transEndPart[6], lines[15]);
Assert.AreEqual(transEndPart[7], lines[16]);
Assert.AreEqual(transEndPart[8], lines[17]);
Assert.AreEqual(transEndPart[9], lines[18]);
Assert.AreEqual(transEndPart[10], lines[19]);
Assert.AreEqual(transEndPart[11], lines[20]);
}