My Jekyll side uses the default feed.xml. I would like to change that because I have site.posts and site.screencasts. Both have the needed attributes to be shown in feed.xml. The default runs this loop:
{% for post in site.posts limit:10 %}
...
{% endfor %}
Is there a way to merge site.posts and site.screencasts and than sort them by date and than limit the result to 10?
I assume that your site.screencasts are derived from page or post and all have a date in front matter.
Starting with an empty array helper in _config.yml
emptyArray: []
Then :
{% assign pagesArray = site.emptyArray %}
{% for post in site.posts %}
{% assign pagesArray = pagesArray | push: post %}
{% endfor %}
{% for scr in site.screencasts %}
{% assign pagesArray = pagesArray | push: scr %}
{% endfor %}
{% assign sorted = pagesArray | sort: "date" %}
{% for s in sorted limit: 10 %}
<h1>{{ s.title }}</h1>
{% endfor %}
Related
Using Jekyll i'd like to:
iterate through all the pages
where the page.path is not the current path
where the page.categories contains "featured"
reverse them(most recent first)
limit 3
i'm having problems when getting all those filters together
{% assign posts = site.posts | reverse %}
{% for post in posts limit:3 %}
{% if post.categories contains 'featured' and post.path != page.path %}
{% include card.html post=post %}
{% endif %}
{% endfor %}
right now the limit is not working properly because the inner if will prevent a few items from being rendered.
Assign 0 to a counter variable before entering your loop. Don't set a limit on the loop, but instead set another condition on your counter being below your limit, and increment the counter using Liquid's plus filter every time you meet your criteria and output the card.
{% assign posts = site.posts | reverse %}
{% assign counter = 0 %}
{% for post in posts %}
{% if counter < 3 and post.categories contains 'featured' and post.path != page.path %}
{% include card.html post=post %}
{% assign counter = counter | plus: 1 %}
{% endif %}
{% endfor %}
A more complex example
I'm basing all of this on the looping I use myself. My condition is a little more complex: I check for any shared tag with the current page. I've included this as a further example below.
{% assign counter = 0 %}
{% for post in site.posts %}
{% if counter < 4 %}
{% if post.url != page.url %}
{% assign isValid = false %}
{% for page_tag in page.tags %}
{% for post_tag in post.tags %}
{% if post_tag == page_tag %}
{% assign isValid = true %}
{% endif %}
{% endfor %}
{% endfor %}
{% if isValid %}
{% include article_card.html %}
{% assign counter = counter | plus: 1 %}
{% endif %}
{% endif %}
{% endif %}
{% endfor %}
Why where fails
Although Liquid has a where filter, it can only do exact comparisons, so you have to reinvent the wheel like this in order to achieve the where-like scenario for more complex conditions. This does make for a lot of looping through site.posts, but Jekyll being a preprocessor means the penalty of using a somewhat inefficient improvised where-type looping is only a compile-time concern, not a runtime one. Even so, to mitigate this cost as much as possible, I opt for having the counter condition be the first that Jekyll calculates.
I am trying to display a list of all articles using liquid markup. I've got this code which displays them properly, however I want to be able to sort by the modified date descending (most recent article on top). How can this be accomplished?
I was thinking that perhaps I need to create a new array with all articles in it and then sort that, but I am not sure how to do that. Also note that I want to sort ALL of my articles by date, not just within each folder.
{% for category in portal.solution_categories %}
{% if category.folders_count > 0 %}
{% for folder in category.folders %}
{% for article in folder.articles %}
{{ article.title }} - {{ article.modified_on | short_day_with_time }} <br>
{% endfor %}
{% endfor %}
{% endif %}
{% endfor %}
Thanks!
You can use a variable to sort the list of articles and then iterate that variable.
{% for category in portal.solution_categories %}
{% if category.folders_count > 0 %}
{% for folder in category.folders %}
{% assign sorted = (folder.articles | sort:date) %}
{% for article in sorted %}
{{ article.title }} - {{ article.modified_on | short_day_with_time }} <br>
{% endfor %}
{% endfor %}
{% endif %}
{% endfor %}
I am trying to output a list of post titles with the 5 latest posts in ALL categories BUT one. It works fine with the filtering, unfortunately it takes the posts that are being excluded in consideration for the limit. Is there any easy way to not count the excluded posts?
{% for post in site.posts limit: 5 %}
{% if post.category == "news" %}
//Do nothing
{% else if %}
{{ post.title }}
{% endif %}
{% endfor %}
To limit filtered posts you need to filter them first.
We create an array of posts that do not include the news category:
{% assign no_news = "" | split: "" %}
{% for post in site.posts %}
{% unless post.categories contains 'news' %}
{% assign no_news = no_news | push: post %}
{% endunless %}
{% endfor %}
Now we traverse this new array limiting iterations by 5:
{% for post in no_news limit: 5 %}
{{ post.title }} - {{post.categories}}
{% endfor %}
It will output 5 posts not containing the news category.
You should be able to assign the posts first, then call them:
{% assign relevant = site.posts | except:"category","news" %}
{% for posts in relevant limit:5 %}
{{ post.title }}
{% endfor %}
For more: https://github.com/jekyll/jekyll/issues/2018
I have several collections on my Jekyll site. I've added post navigation to one of the collections displaying a counter on each post page:
{% assign testimonials = site.testimonials %}
{% assign page_order = 1 %}
{% for node in testimonials reversed %}
{% if node.url == page.url %}
{{ page_order }} from {{ forloop.length }}
{% else %}
{% assign page_order = page_order | plus: 1 %}
{% endif %}
{% endfor %}
I would like to make this code work not only for site.testimonials, but for other collections as well. I tried to pass a variable for collections like this:
{% capture label %}{{ page.collection }}{% endcapture %}
{% assign collection = site.collections | where: "label",label | first %}
{% for node in collection reversed %}
{% if node.url == page.url %}
{{ page_order }} from {{ forloop.length }}
{% else %}
{% assign page_order = page_order | plus: 1 %}
{% endif %}
{% endfor %}
But it doesn't work. Is there any way to pass a variable for all collections in Jekyll to use in forloop in post navigation?
When you access collection with site.testimonials, you get collection's documents array.
{{ site.testimonials | inspect }}
# output >> [#<Jekyll::Document ...>, #<Jekyll::Document ...>, ...]
When you access a collection while looping over site.collection, you receive the collection's object :
{% assign collection = site.collections | where: "label",page.collection | first %}
{{ collection | inspect }}
# output >> { "output": true, "label": "collectionLabel",
"docs": [ doc1, docs2, ... ], "files": [],
"directory": "/path/to/collection",
"relative_directory": "_colectionDirectory" }
In your case, you just have to replace :
{% for node in collection reversed %}
By :
{% for node in collection.docs reversed %}
I want to loop through posts on a site except ones with the category unlisted. I'm able to do this by nesting an if statement inside the for loop, but this breaks down when I want to also specify a limit – the loop will run for 5 times only regardless of whether the post passes the check.
{% for post in site.posts limit: 5 %}
{% unless post.categories contains 'unlisted' %}
<!-- display post -->
{% endunless %}
{% endfor %}
I need to pass an already filtered list to the for loop, but I'm unable to do this mainly because I can't find a way to combine the where filter with contains and negation:
{% for post in site.posts | WHERE CATEGORIES NOT CONTAINS 'UNLISTED' | limit: 5 %}
<!-- display post -->
{% endfor %}
You can use a counter :
<ul>
{% assign postCounter = 0 %}
{% assign maxPost = 5 %}
{% for post in site.posts %}
{% unless post.categories contains 'unlisted' %}
<li>{{ post.title }}</li>
{% assign postCounter = postCounter | plus: 1 %}
{% if postCounter >= maxPost %}
{% break %}
{% endif %}
{% endunless %}
{% endfor %}
</ul>