protected virtual void Generate([NotNull] RenameIndexOperation operation, [NotNull] IndentedStringBuilder builder)
{
Check.NotNull(operation, nameof(operation));
Check.NotNull(builder, nameof(builder));
builder.AppendLine(".RenameIndex(");
using (builder.Indent())
{
builder
.Append("name: ")
.Append(_code.Literal(operation.Name));
if (operation.Schema != null)
{
builder
.AppendLine(",")
.Append("schema: ")
.Append(_code.Literal(operation.Schema));
}
builder
.AppendLine(",")
.Append("table: ")
.Append(_code.Literal(operation.Table))
.AppendLine(",")
.Append("newName: ")
.Append(_code.Literal(operation.NewName))
.Append(")");
Annotations(operation.GetAnnotations(), builder);
}
}
/// <summary>
/// Builds commands for the given <see cref="RenameIndexOperation" />
/// by making calls on the given <see cref="MigrationCommandListBuilder" />.
/// </summary>
/// <param name="operation"> The operation. </param>
/// <param name="model"> The target model which may be <c>null</c> if the operations exist without a model. </param>
/// <param name="builder"> The command builder to use to build the commands. </param>
protected override void Generate(
RenameIndexOperation operation,
IModel model,
MigrationCommandListBuilder builder)
{
Check.NotNull(operation, nameof(operation));
Check.NotNull(builder, nameof(builder));
if (operation.NewName != null)
{
if (_connectionInfo.ServerVersion.SupportsRenameIndex)
{
builder.Append("ALTER TABLE ")
.Append(Dependencies.SqlGenerationHelper.DelimitIdentifier(operation.Table, operation.Schema))
.Append(" RENAME INDEX ")
.Append(Dependencies.SqlGenerationHelper.DelimitIdentifier(operation.Name))
.Append(" TO ")
.Append(Dependencies.SqlGenerationHelper.DelimitIdentifier(operation.NewName))
.AppendLine(";");
EndStatement(builder);
}
else
{
var index = FindEntityTypes(model, operation.Schema, operation.Table)
?.SelectMany(e => e.GetDeclaredIndexes())
.FirstOrDefault(i => i.GetName() == operation.NewName);
if (index == null)
{
throw new InvalidOperationException(
$"Could not find the model index: {Dependencies.SqlGenerationHelper.DelimitIdentifier(operation.Table, operation.Schema)}.{Dependencies.SqlGenerationHelper.DelimitIdentifier(operation.NewName)}. Upgrade to Mysql 5.7+ or split the 'RenameIndex' call into 'DropIndex' and 'CreateIndex'");
}
Generate(new DropIndexOperation
{
Schema = operation.Schema,
Table = operation.Table,
Name = operation.Name
}, model, builder);
var createIndexOperation = new CreateIndexOperation
{
Schema = operation.Schema,
Table = operation.Table,
Name = operation.NewName,
Columns = index.Properties.Select(p => p.GetColumnName()).ToArray(),
IsUnique = index.IsUnique,
Filter = index.GetFilter()
};
createIndexOperation.AddAnnotations(_migrationsAnnotations.For(index));
createIndexOperation.AddAnnotations(operation.GetAnnotations());
Generate(createIndexOperation, model, builder);
}
}
}