/// <summary>
/// Extract IndexKey Definition from context
/// </summary>
/// <param name="context"></param>
/// <returns></returns>
public static MySqlKeyDefinition ExtractIndexKey(IndexDeclarationContext context)
{
if (context == null)
{
throw new ArgumentOutOfRangeException($"{nameof(context)} is null");
}
var simpleIndexDeclarationContext = context.GetChild <SimpleIndexDeclarationContext>();
return(ExtractKeyDefinition(simpleIndexDeclarationContext));
}
/// <summary>
/// Listener for Index Index detection
/// </summary>
/// <remarks>
/// override method <see cref="EnterIndexColumnNames"/> includes PK and secondary key and it not contains index name. Therefore let's drill down declaration.
/// </remarks>
/// <param name="context"></param>
public override void EnterIndexDeclaration([NotNull] IndexDeclarationContext context)
{
base.EnterIndexDeclaration(context);
// index (secondary key)
var definition = MySqlKeyDefinition.ExtractIndexKey(context);
TableDefinition.AddIndexKey(definition);
// map IndexKey and existing Column reference
definition.AddIndexKeyReferenceOnColumn(TableDefinition.Columns);
}
