Support "*_pages" expansion feature in nested variables

[evanmiller]

It appears the *_pages expansion only works for top-level variables. I have some pages with nested hierarchies of links (e.g. categories/subcategories/sub_pages); it would be great if the algorithm could be applied to nested variables/attributes as well as top-level ones.

[scmorrison]

Hi @evanmiller, can you share an example of a structure you want to support? You can now do something like this:

---
related_pages:
    - page: about
    - page: blog/fiji
    - page: https://www.perl6.org
nested:
    - deep_pages:
        - page: blog/fiji
        - page: about
categories:
    - vacation:
        - vacation_pages:
            - page: index
            - page: about
            - page: blog/fiji
        - road_trips:
            - road_trip_pages:
                - page: pacific_northwest
                - page: australia
                - page: africa
---

[evanmiller]

I'm looking for:

categories:
  - title: General tasks
    category_pages:
      - page: compute/categories
      - page: compute/survival_times
      - page: summary/covariate_partition
      - page: tables/row_multipliers

I updated Uzu, but this still doesn't seem to be working.

[scmorrison]

This structure should work, I just did a copy / paste test and it looks like it is working. Maybe test a full uzu reinstall again. You can access it from {{ category_pages }}.

[evanmiller]

To be clear I want to access it like:

{{#categories}}
<em>{{ title }}</em>
{{#category_pages}}
<li>{{ title }}</li>
{{/category_pages}}
{{/categories}}

Should that work? If so I will reinstall and test again.

[scmorrison]

This would work:

{{#categories}}
<em>{{ title }}</em>
{{/categories}}
{{#category_pages}}
<li>{{ title }}</li>
{{/category_pages}}

[evanmiller]

category_pages should not be a top-level variable. It should remain an attribute of categories. I want to do something like:

categories:
  - title: General tasks
    category_pages:
      - page: compute/categories
      - page: compute/survival_times
      - page: summary/covariate_partition
      - page: tables/row_multipliers
  - title: Other tasks
    category_pages:
      - page: compute/duration
      - page: tables/delete

[scmorrison]

I understand what you are after now. I'll let you know when I have something working to test.

[scmorrison]

This should work now. But I did a bit of an overhaul on the way these are parsed so let me know if it has impacted any of your other variables. Also improved stability and error handling somewhat.

[evanmiller]

Hi, this is still not working as expected.

---
categories:
  - title: General tasks
  - category_pages:
    - page: compute/categories
    - page: compute/survival_times
    - page: summary/covariate_partition
    - page: tables/row_multipliers
---
       {{#categories}}
       <p><strong>{{ title }}</strong></p>
       <ul>
       {{#category_pages}}
           <li><a href="{{ layout.url_prefix }}{{ topic }}{{ layout.url_separator }}{{ anchor }}{{ layout.url_postfix }}">{{ title }}</a></li>
       {{/category_pages}}
       </ul>
       {{/categories}}

Output:

       <p><strong>General tasks</strong></p>
       <ul>
       </ul>

[scmorrison]

Hi @evanmiller, it seems to work for my tests. I tested with both of these structures:

---
categories:
  - title: General tasks
  - category_pages:
      - page: compute/categories
      - page: compute/survival_times
      - page: summary/covariate_partition
      - page: tables/row_multipliers
---

and

---
categories:
  - title: General tasks
    category_pages:
      - page: compute/categories
      - page: compute/survival_times
      - page: summary/covariate_partition
      - page: tables/row_multipliers
---

also, I upped the version to 0.2.2, can you confirm that this is the latest?

[evanmiller]

Ah, looks like I was creating two hashes on accident. It's working now. Thanks!

[scmorrison]

Excellent. Hope it helps with your site.

[evanmiller]

[master b284e28] Move link hierarchy to YAML
 2 files changed, 71 insertions(+), 121 deletions(-)

Much better :-D

[scmorrison]

That is great. Very cool to see that.