codeninjasuk.github.io/docs/_docs/13-collections.md

title	permalink	excerpt	last_modified_at
Working with Collections	/docs/collections/	Suggestions and Front Matter defaults for working with collections.	2018-03-20T16:00:02-04:00

Collections like posts and pages work as you'd expect. If you're new to them be sure to read Jekyll's documentation.

The theme has been built with collections in mind and you will find [several examples]({{ "/collection-archive/" | relative_url }}) on the demo site ([portfolio]({{ "/portfolio/" | relative_url }}), [recipes]({{ "/recipes/" | relative_url }}), [pets]({{ "/pets/" | relative_url }})).

Collections in the Wild: This set of documentation is also [built as a collection](https://github.com/{{ site.repository }}/blob/master/docs/_docs/) if you're looking for a fully fleshed out example to inspect. {: .notice--info}

---

A popular use case for collections is to build a portfolio section as part of one's personal site. Let's quickly walk through the steps to do that.

Step 1: Configure the portfolio collection by adding the following to _config.yml.

collections:
  portfolio:
    output: true
    permalink: /:collection/:path/

These settings essentially say output index.html files for each portfolio document in _portfolio at _site/portfolio/<document-filename>/.

Just like posts and pages you'll probably want to set some defaults for the Front Matter:

defaults:
  # _portfolio
  - scope:
      path: ""
      type: portfolio
    values:
      layout: single
      author_profile: false
      share: true

Now make a portfolio.md file in the '_pages' folder.

---
title: Portfolio
layout: collection
permalink: /portfolio/
collection: portfolio
entries_layout: grid
classes: wide
---

And then create portfolio content like [_portfolio/foo-bar-website.md](https://github.com/{{ site.repository }}/blob/master/docs/_portfolio/foo-bar-website.md), to end up with something like this.

![portfolio collection example]({{ "/assets/images/mm-portfolio-collection-example.jpg" | relative_url }})