private ColumnBuilder PrepareColumn(string columnName, SQLiteDbType type)
{
if (columnName == null)
{
throw new ArgumentNullException(nameof(columnName));
}
if (string.IsNullOrEmpty(columnName))
{
throw new InvalidOperationException($"{nameof(columnName)} cannot be empty.");
}
if (_table.Columns.Any(c => c.Name.Equals(columnName, StringComparison.OrdinalIgnoreCase)))
{
throw new InvalidOperationException($"A column with name \"{columnName}\" has already been added.");
}
var column = new ColumnEntity();
column.Name = columnName;
column.Type = type;
_table.Columns.Add(column);
return(new ColumnBuilder(this, column));
}
public ColumnBuilder(TableBuilder tableBuilder, ColumnEntity column)
{
if (tableBuilder == null)
{
throw new ArgumentNullException(nameof(tableBuilder));
}
if (column == null)
{
throw new ArgumentNullException(nameof(column));
}
_tableBuilder = tableBuilder;
_column = column;
}