/// <summary>
/// Extract PrimaryKey Definition from context
/// </summary>
/// <param name="context"></param>
/// <returns></returns>
public static MySqlKeyDefinition ExtractPrimaryKey(PrimaryKeyTableConstraintContext context)
{
if (context == null)
{
throw new ArgumentOutOfRangeException($"{nameof(context)} is null");
}
var keys = context.GetIndexNames();
var pkName = context.GetChildlen <IndexColumnNamesContext>()
.Single()
.GetText().RemoveBackQuote().RemoveParenthesis();
var pkIndexes = keys.Select(x => x.RemoveBackQuote().RemoveParenthesis()).ToArray();
var definition = new MySqlKeyDefinition
{
KeyName = pkName,
Indexes = pkIndexes.Select((x, i) => new MySqlKeyDetailDefinition
{
Order = i,
IndexKey = x,
})
.ToArray(),
};
return(definition);
}
public void AddUniqueKey(MySqlKeyDefinition index)
{
if (IndexKeys == null)
{
UniqueKeys = new HashSet <MySqlKeyDefinition>();
}
UniqueKeys.Add(index);
}
public void AddIndexKeysReference(MySqlKeyDefinition index)
{
if (IndexKeysReferences == null)
{
IndexKeysReferences = new HashSet <MySqlKeyDefinition>();
}
IndexKeysReferences.Add(index);
}
public void AddUniqueKeysReference(MySqlKeyDefinition index)
{
if (UniqueKeysReferences == null)
{
UniqueKeysReferences = new HashSet <MySqlKeyDefinition>();
}
UniqueKeysReferences.Add(index);
}
/// <summary>
/// Extract Key Definition from context
/// </summary>
/// <param name="context"></param>
/// <returns></returns>
private static MySqlKeyDefinition ExtractKeyDefinition(ParserRuleContext context)
{
var indexName = context.GetChild <UidContext>().GetText();
var indexes = context.GetChild <IndexColumnNamesContext>();
var indexData = Enumerable.Range(0, indexes.ChildCount)
.Select(x => indexes.GetChild(x) is IndexColumnNameContext columnName
? columnName.GetText()
: "")
.Where(x => !string.IsNullOrEmpty(x))
.Select((x, i) => new MySqlKeyDetailDefinition
{
IndexKey = x.RemoveBackQuote(),
Order = i,
})
.ToArray();
var definition = new MySqlKeyDefinition()
{
KeyName = indexName.RemoveBackQuote(),
Indexes = indexData,
};
return(definition);
}
