Can I iterate my context at view to put into my template?-CodePudding

I've created this function at my views to iterate through my pages.

for chapter in chapters:
            context["chapter_page"] = math.ceil((chapters.index(chapter)   1) / 2)

        context["chapter"] = chapters
        return context

I am still making a for a loop in my template, so I cannot remove him. I added this context, but the only returned page is the last page, which means, that my context["chapter_page"] is not iterating.

{% for chapter in chapters %}
          <li>
            <a 
                href="?page={{ chapter_page }}&#{{ chapter.number }}">
                    {{ chapter.number }}
            </a>
           </li>
{% endfor %}

Of course, I could not add this logic direct to my template, it is not accepted by Django.

{% for chapter in chapters %}
          <li>
            <a 
                href="?page={{ math.ceil((chapters.index(chapter)   1) / 2) }}&#{{ chapter.number }}">
                    {{ chapter.number }}
            </a>
           </li>
{% endfor %}

I am expecting to do a loop and return each iterated number at my href=page

CodePudding user response：

I'm guessing here, because you have omitted a bunch of details, but it looks like you are expecting one chapter_page value per chapter. That's not what you have implemented. You have exactly one global chapter_page value.

If you want one per chapter, then that number needs to be part of the chapter object, not global:

    for idx,chapter in enumerate(chapters):
        chapter["chapter_page"] = math.ceil((idx   1) / 2)

    context["chapter"] = chapters
    return context

and

{% for chapter in chapters %}
          <li>
            <a 
                href="?page={{ chapter.chapter_page }}&#{{ chapter.number }}">
                    {{ chapter.number }}
            </a>
           </li>
{% endfor %}