/// <summary>
/// Constructs an initializer for a unique index.
/// </summary>
/// <param name="uniqueElement">The unique index description.</param>
/// <returns>Code to initialize a unique index.</returns>
private static ExpressionSyntax GetUniqueInitializer(UniqueElement uniqueElement)
{
// new ForeignIndex<Account,Item>("AccountSymbolKey")
ExpressionSyntax expressionSyntax = SyntaxFactory.ObjectCreationExpression(
SyntaxFactory.GenericName(
SyntaxFactory.Identifier("UniqueIndex"))
.WithTypeArgumentList(
SyntaxFactory.TypeArgumentList(
SyntaxFactory.SingletonSeparatedList <TypeSyntax>(
SyntaxFactory.IdentifierName(uniqueElement.Table.Name)))))
.WithArgumentList(
SyntaxFactory.ArgumentList(
SyntaxFactory.SingletonSeparatedList <ArgumentSyntax>(
SyntaxFactory.Argument(
SyntaxFactory.LiteralExpression(
SyntaxKind.StringLiteralExpression,
SyntaxFactory.Literal(uniqueElement.Name))))));
// .HasIndex(a => a.ItemId)
expressionSyntax = SyntaxFactory.InvocationExpression(
SyntaxFactory.MemberAccessExpression(
SyntaxKind.SimpleMemberAccessExpression,
expressionSyntax,
SyntaxFactory.IdentifierName("HasIndex")))
.WithArgumentList(
SyntaxFactory.ArgumentList(
SyntaxFactory.SingletonSeparatedList <ArgumentSyntax>(
SyntaxFactory.Argument(UniqueKeyExpression.GetUniqueKey(uniqueElement)))));
// .HasFilter(a => a.Symbol != null)
if (uniqueElement.IsNullable)
{
expressionSyntax = SyntaxFactory.InvocationExpression(
SyntaxFactory.MemberAccessExpression(
SyntaxKind.SimpleMemberAccessExpression,
expressionSyntax,
SyntaxFactory.IdentifierName("HasFilter")))
.WithArgumentList(
SyntaxFactory.ArgumentList(
SyntaxFactory.SingletonSeparatedList <ArgumentSyntax>(
SyntaxFactory.Argument(NullableKeyFilterExpression.GetNullableKeyFilter(uniqueElement)))));
}
return(expressionSyntax);
}
/// <summary>
/// Constructs an initializer for a unique index.
/// </summary>
/// <param name="foreignKeyElement">The foreign index description.</param>
/// <returns>Code to initialize a unique index.</returns>
private static ExpressionSyntax GetForeignKeyInitializer(ForeignElement foreignKeyElement)
{
// new ForeignIndex<Account,Item>("AccountSymbolKey")
ExpressionSyntax expressionSyntax = SyntaxFactory.ObjectCreationExpression(
SyntaxFactory.GenericName(
SyntaxFactory.Identifier("ForeignIndex"))
.WithTypeArgumentList(
SyntaxFactory.TypeArgumentList(
SyntaxFactory.SeparatedList <TypeSyntax>(
new SyntaxNodeOrToken[]
{
SyntaxFactory.IdentifierName(foreignKeyElement.UniqueKey.Table.Name),
SyntaxFactory.Token(SyntaxKind.CommaToken),
SyntaxFactory.IdentifierName(foreignKeyElement.Table.Name),
}))))
.WithArgumentList(
SyntaxFactory.ArgumentList(
SyntaxFactory.SeparatedList <ArgumentSyntax>(
new SyntaxNodeOrToken[]
{
SyntaxFactory.Argument(
SyntaxFactory.LiteralExpression(
SyntaxKind.StringLiteralExpression,
SyntaxFactory.Literal(foreignKeyElement.Name))),
SyntaxFactory.Token(SyntaxKind.CommaToken),
SyntaxFactory.Argument(
SyntaxFactory.MemberAccessExpression(
SyntaxKind.SimpleMemberAccessExpression,
SyntaxFactory.MemberAccessExpression(
SyntaxKind.SimpleMemberAccessExpression,
SyntaxFactory.MemberAccessExpression(
SyntaxKind.SimpleMemberAccessExpression,
SyntaxFactory.ThisExpression(),
SyntaxFactory.IdentifierName(foreignKeyElement.XmlSchemaDocument.Name)),
SyntaxFactory.IdentifierName(foreignKeyElement.UniqueKey.Table.Name.ToPlural())),
SyntaxFactory.IdentifierName(foreignKeyElement.UniqueKey.Name))),
})));
// .HasIndex(a => a.ItemId)
expressionSyntax = SyntaxFactory.InvocationExpression(
SyntaxFactory.MemberAccessExpression(
SyntaxKind.SimpleMemberAccessExpression,
expressionSyntax,
SyntaxFactory.IdentifierName("HasIndex")))
.WithArgumentList(
SyntaxFactory.ArgumentList(
SyntaxFactory.SingletonSeparatedList <ArgumentSyntax>(
SyntaxFactory.Argument(
ForeignKeyExpression.GetForeignKey(foreignKeyElement)))));
// .HasFilter(a => a.Symbol != null)
if (foreignKeyElement.IsNullable)
{
expressionSyntax = SyntaxFactory.InvocationExpression(
SyntaxFactory.MemberAccessExpression(
SyntaxKind.SimpleMemberAccessExpression,
expressionSyntax,
SyntaxFactory.IdentifierName("HasFilter")))
.WithArgumentList(
SyntaxFactory.ArgumentList(
SyntaxFactory.SingletonSeparatedList <ArgumentSyntax>(
SyntaxFactory.Argument(NullableKeyFilterExpression.GetNullableKeyFilter(foreignKeyElement)))));
}
// = new UniqueIndex("SecurityFigiKey").HasIndex(s => s.Figi).HasFilter(s => s.Figi != null);
return(expressionSyntax);
}
