You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: djangocontenttype.xo.go
    path of file: ./repos/xo/_examples/django/oracle
    
    the code of the file until where you have to start completion: package oracle

// Code generated by xo. DO NOT EDIT.

import (
	"context"
	"database/sql"
)

// DjangoContentType represents a row from 'django.django_content_type
    
func (dct *DjangoContentType) Delete(ctx context.Context, db DB) error {
	switch {
	case !dct._exists: // doesn't exist
		return nil
	case dct._deleted: // deleted
		return nil
	}
	// delete with single primary key
	const sqlstr = `DELETE FROM django.django_content_type ` +
		`WHERE id = :1`
	// run
	logf(sqlstr, dct.ID)
	if _, err := db.ExecContext(ctx, sqlstr, dct.ID); err != nil {
		return logerror(err)
	}
	// set deleted
	dct._deleted = true
	return nil
}