def load_categories(self, max_pages=30):
        logger.info("loading categories")
        if self.purge_first:
            Category.objects.filter(site_id=self.site_id).delete()
        path = "sites/{}/categories".format(self.site_id)
        params = {"number": 100}
        page = 1
        response = self.get(path, params)
        if not response.ok:
            logger.warning("Response NOT OK! status_code=%s\n%s", response.status_code, response.text)
        while response.ok and response.text and page < max_pages:
            logger.info(" - page: %d", page)
            api_categories = response.json().get("categories")
            if not api_categories:
                break
            categories = []
            for api_category in api_categories:
                existing_category = Category.objects.filter(site_id=self.site_id, wp_id=api_category["ID"]).first()
                if existing_category:
                    self.update_existing_category(existing_category, api_category)
                else:
                    categories.append(self.get_new_category(api_category))
            if categories:
                Category.objects.bulk_create(categories)
            elif not self.full:
                break
            page += 1
            params["page"] = page
            response = self.get(path, params)
            if not response.ok:
                logger.warning("Response NOT OK! status_code=%s\n%s", response.status_code, response.text)
                return