How can I loop through every file in my _data folder in Jekyll?
Currently I have a list of files in a file called sidebarlist.yml like this:
- file1
- file2
- file3
In order to loop through all of these files, I use this code:
{% for sidebar in site.data.sidebarlist %}
{% for entry in site.data.sidebars[sidebar].entries %}
...
{% endfor %}
{% endfor %}
I would like to avoid using sidebarlist.yml and just iterate through all files within _data automatically. Can I do this?
Nesting loops allows you to loop through the contents of _data files.
When I did this I used a subdirectory, since I didn't want to loop through every data file, and I think that applies to many use cases. It also keeps my _data directory a little tidier.
My _data directory looks like this:
_data/
navigation.yml
news.yml
people/
advisors.yml
board.yml
staff.yml
Each of the files within people/ uses a structure like this:
- name: Anne Smith
role: Role A
url: mysite.com
- name: Joe Shmoe
role: Role B
url: mysite.org
And on the page where I'm looping through each of these data files:
{% for people_hash in site.data.people %}
{% assign people = people_hash[1] %}
{% for person in people %}
<li>{{ person.name }}, {{ person.role }}</li>
{% endfor %}
{% endfor %}
This results in:
<li>Anne Smith, Role A</li>
<li>Joe Shmoe, Role B</li>
It's very similar to what you've already done, but eliminates the need for that extra yaml file.
Note the use of people_hash[1] - this is what is targeting the appropriate values within the array.
If instead you do:
{% for people_hash in site.data.people %}
{% assign people = people_hash[1] %}
<pre>{{ people }}</pre>
{% endfor %}
You'll get the array of values that is returned, which should help you debug your template.
I have read your question title, and I will answer your last question:
You can't loop through files you keep in _data folder. According to Jekyll Variable doc and Jekyll Directory structure all the file in _data with supported extension .yml .yaml .csv .jsonby default will be loaded in site.data like @wasthishelpfull's answered and you access it via {{site.data.*filename.data*}} and loop though like this answer
If you wanna loop through files, create a folder (no underscore) serve it as static files, and use jquery.get() for the data in the file.
Or change _data to data in _config.yml by adding data_source: data and access at a url endpoint /data see this post for more
According to the documentation, jekyll will load YAML resources (.yml, .yaml, .json, and .csv files) directly into site.data. If your files use one of these formats, you can do:
{% for data in site.data %}
...
{% endfor %}
I assume you need to access jekyll site.data in a way of looping multi levels object:
{% assign my_data = site.data %}
{% assign my_level = "sidebarlist.sidebars.sidebar" | split: "." %}
{% for level in my_level %}
{% assign my_data = my_data[level[i]] %}
{% for data in my_data %}
{{ data }} : {{ my_data[data] }}
{% endfor %}
{% endfor %}
