public static InsertStatement CreateInsertStatement(IMapping mapping, bool identityInsert = false)
{
InsertStatement statement = new InsertStatement(mapping.TableName);
statement.IdentityColumnName = String.Empty;
foreach (var item in mapping.Columns)
{
if (item.IsDbGenerated && !identityInsert)
{
statement.IdentityColumnName = item.Name;
}
else
{
var pinfo = (PropertyInfo)item.Property;
SqlParameter prm;
if (pinfo.PropertyType.IsGenericType && pinfo.PropertyType.GetGenericTypeDefinition() == typeof(Nullable <>))
{
prm = statement.CreateParameter(item.Name, pinfo.PropertyType.GetGenericArguments()[0]);
}
else
{
prm = statement.CreateParameter(item.Name, pinfo.PropertyType);
}
if (item.IsNullable && item.DefaultValue != null && prm.Value == null)
{
prm.Value = item.DefaultValue;
}
statement.Column(item.ColumnName, prm);
}
}
return(statement);
}
protected int InsertRows(string table_name)
{
DataTable myTable = this.Tables[table_name];
DataRowCollection rows = myTable.Rows;
int rowsCount = rows.Count;
int rowsAffected = 0;
if (rowsCount <= 0)
{
return(rowsAffected);
}
var cmd = new InsertStatement(myTable.ExtendedProperties["Storage"].ToString());
cmd.ConnectionStringName = _connectionStringName;
var prmlist = new List <SqlParameter>();
var colsCount = myTable.Columns.Count;
var identcol = String.Empty;
for (var c = 0; c < colsCount; c++)
{
var col = myTable.Columns[c];
var prm = new SqlParameter(col.ColumnName, col.DataType);
prmlist.Add(prm);
if (col.AutoIncrement)
{
identcol = col.ColumnName;
}
else if (col.ExtendedProperties["NonStorable"] == null)
{
cmd.Column(col.ExtendedProperties["Storage"].ToString(), prm);
}
}
IEnumerator rowEnum = rows.GetEnumerator();
while (rowEnum.MoveNext())
{
var row = (DataRow)rowEnum.Current;
if (row.RowState != DataRowState.Added)
{
continue;
}
for (var c = 0; c < colsCount; c++)
{
var col = myTable.Columns[c];
var prm = prmlist[c];
if (row[prm.Name] == null || row[prm.Name] == DBNull.Value && col.DefaultValue != null)
{
prm.Value = col.DefaultValue;
}
else
{
prm.Value = row[prm.Name];
}
}
if (identcol != String.Empty)
{
object id;
cmd.Execute(out id);
row[identcol] = id;//Int32.Parse(id.ToString());
}
else
{
cmd.Execute();
}
row.AcceptChanges();
rowsAffected++;
}
return(rowsAffected);
}
