public void TestCreateSelectStatementSuccessfully(bool wherePresent, bool orderByPresent, bool groupByPresent, string tableName, string expectedSelectStatement)
{
ViewParameters viewParams = GetTestParameters(wherePresent, orderByPresent, groupByPresent);
string actualSelectStatement = SqlStatmentsGenerator.CreateSelectStatement(null, tableName, viewParams);
Assert.Equal(expectedSelectStatement, actualSelectStatement);
}
public async Task <DbData> ExtractAsync(string viewName, ViewParameters parameters)
{
using (DbConnection connection = DbConnectionFactory.Create(_dbEngine, _connectionString))
{
try
{
_logger.LogDebug("Extract db data async via \"View\" started");
DbData result = null;
await connection.OpenAsync().ConfigureAwait(false);
string cmdText = SqlStatmentsGenerator.CreateSelectStatement(SqlStatmentsGenerator.SelectAllColumns, viewName, parameters);
using (IDbCommand command = DbCommandFactory.Create(_dbEngine, connection, cmdText))
{
command.CommandType = CommandType.Text;
result = await ReadDataImplAsync((DbCommand)command);
}
connection.Close();
_logger.LogDebug("Extract db data async via \"View\" completed");
return(result);
}
catch (Exception e)
{
_logger.LogError($"An error occured during async data extraction via \"View\", exception: {e}");
return(null);
}
}
}
public void TestCreateSelectStatementMultiple()
{
ViewParameters parameters = new ViewParameters();
List <DbQueryParameter> whereParams = new List <DbQueryParameter>();
whereParams.Add(new DbQueryParameter(null, "Age", ">", "18"));
whereParams.Add(new DbQueryParameter(new[] { JoinCondition.And, JoinCondition.Not }, "FirstName", "IS NOT", "'John'"));
whereParams.Add(new DbQueryParameter(new[] { JoinCondition.Or }, "LastName", "=", "'Smith'"));
parameters.WhereParameters = whereParams;
string expectedSelectStatement = "SELECT * FROM Person WHERE Age > 18 AND NOT FirstName IS NOT 'John' OR LastName = 'Smith'";
string actualSelectStatement = SqlStatmentsGenerator.CreateSelectStatement(null, "Person", parameters);
Assert.Equal(expectedSelectStatement, actualSelectStatement);
}