/// <summary>
/// 有指定数据库索引的名称（格式：EntityName+PropertyNames+Index）。
/// </summary>
/// <param name="indexBuilder">给定的 <see cref="IndexBuilder"/>。</param>
/// <param name="nameFunc">给定的名称方法（可选）。</param>
/// <returns>返回 <see cref="IndexBuilder"/>。</returns>
public static IndexBuilder HasDatabaseName(this IndexBuilder indexBuilder,
Func <string, string>?nameFunc = null)
{
var sb = new StringBuilder();
// Prefix: EntityBodyName
sb.Append(indexBuilder.Metadata.DeclaringEntityType.ClrType.Name);
foreach (var property in indexBuilder.Metadata.Properties)
{
sb.Append(property.Name);
}
// Suffix: Index
sb.Append("Index");
var name = sb.ToString();
return(indexBuilder.HasDatabaseName(nameFunc?.Invoke(name) ?? name));
}
public static IndexBuilder <TEntity> HasName <TEntity>(this IndexBuilder <TEntity> indexBuilder, string?name) => indexBuilder.HasDatabaseName(name);
public static IndexBuilder <TEntity> HasName <TEntity>([NotNull] this IndexBuilder <TEntity> indexBuilder, [CanBeNull] string name) => indexBuilder.HasDatabaseName(name);
