gistfile1.txt

class CategoryPage(Page):
    parent_page_types = ["CoreApp.HomePage"] <- Notice that it is child of Homepage. So breadcrumb in this page is Homepage>CategoryPage
    template = "category.html"

    description = RichTextField(
        null=True,
        blank=True,
        features=["bold", "italic", "link"],
    )

    image = models.ForeignKey(
        get_image_model(),
        null=True,
        blank=True,
        on_delete=models.SET_NULL,
        related_name="category_image",
    )

    content_panels = Page.content_panels + [
        FieldPanel("description"),
        FieldPanel("image"),
    ]

    def get_context(self, request, *args, **kwargs):
        context = super().get_context(request, *args, **kwargs)

        breadcrumbs = []

        page = self
        while page.get_parent() is not None:
            if page.is_root():
                break
            # Note how we do not add self.
            page = page.get_parent()
            breadcrumbs.append(page)

        breadcrumbs.reverse()
        context["breadcrumbs"] = breadcrumbs
        return context