protected override void Generate(
AlterColumnOperation operation,
IModel model,
RelationalCommandListBuilder builder)
{
Check.NotNull(operation, nameof(operation));
Check.NotNull(builder, nameof(builder));
DropDefaultConstraint(operation.Schema, operation.Table, operation.Name, builder);
builder
.Append("ALTER TABLE ")
.Append(SqlGenerator.DelimitIdentifier(operation.Table, operation.Schema))
.Append(" ALTER COLUMN ");
ColumnDefinition(
operation.Schema,
operation.Table,
operation.Name,
operation.ClrType,
operation.ColumnType,
operation.IsNullable,
/*defaultValue:*/ null,
/*defaultValueSql:*/ null,
operation.ComputedColumnSql,
/*identity:*/ false,
operation,
model,
builder);
if (operation.DefaultValue != null
|| operation.DefaultValueSql != null)
{
builder
.AppendLine(";")
.Append("ALTER TABLE ")
.Append(SqlGenerator.DelimitIdentifier(operation.Table, operation.Schema))
.Append(" ADD");
DefaultValue(operation.DefaultValue, operation.DefaultValueSql, builder);
builder
.Append(" FOR ")
.Append(SqlGenerator.DelimitIdentifier(operation.Name));
}
}
protected override void Generate(AlterColumnOperation operation, IModel model, RelationalCommandListBuilder builder)
{
throw new NotSupportedException(SqliteStrings.InvalidMigrationOperation);
}
public override void Generate(AlterColumnOperation operation, IModel model, SqlBatchBuilder builder)
{
throw new NotSupportedException(Strings.InvalidMigrationOperation);
}
protected override void Generate(AlterColumnOperation operation, IModel model, SqlBatchBuilder builder)
{
}
protected override void Generate(AlterColumnOperation operation, IModel model, RelationalCommandListBuilder builder)
{
}