public void AddColumn(string tableName, DbColumnInfo columnInfo)
{
#region QUERY
const string query = "ALTER TABLE {0} ADD {1}";
#endregion
StringBuilder inserting = new StringBuilder("");
inserting.Append(columnInfo.Name);
inserting.Append(" ");
inserting.Append(columnInfo.Type);
inserting.Append(" ");
if (!columnInfo.Nullable)
{
inserting.Append("NOT NULL ");
}
if (columnInfo.PrimaryKey)
{
inserting.Append("PRIMARY KEY ");
}
if (columnInfo.Reference != null && columnInfo.Reference != "")
{
DbColumnReference reference = DbColumnReference.TryParse(columnInfo.Reference);
inserting.Append(string.Format("REFERENCES {0}({1})", reference.TableName, reference.ColumnName));
inserting.Append(" ");
}
while (inserting.Length > 0 && inserting[inserting.Length - 1] == ' ')
{
inserting.Remove(inserting.Length - 1, 1);
}
ExecuteCommandReader(string.Format(query, tableName, inserting.ToString()));
}
public string CreateString()
{
StringBuilder res = new StringBuilder("");
res.Append(Name);
res.Append(" ");
res.Append(Type);
res.Append(" ");
if (Reference != "" && Reference != null)
{
DbColumnReference reference = DbColumnReference.TryParse(Reference);
res.Append(string.Format("REFERENCES {0}({1})", reference.TableName, reference.ColumnName));
res.Append(" ");
}
if (!Nullable)
{
res.Append("NOT NULL ");
}
return(res.ToString());
}
