In the following code, I have a category by the name "ml" defined in my yml file frontmatter. For some reason, the {% unless cat == "ml" %} is not working properly. See this html, and the output image below. Clearly, the category is ml (I have tried to remove any whitespace with the strip filter, which did not work), but it is not working (the unless statement, that is).
Please help!
<div class="posts">
<h1>Recent Posts: </h1>
{% for post in paginator.posts %}
{% assign cat = post.categories %}
{% unless cat == "ml" %}
<div class="post">
<h1 class="post-title">
<a href="{{ post.url }}">
{{ post.title }}: {{ cat }}
</a>
{% if post.image %}
<img src={{post.image}}>
{% endif %}
</h1>
<span class="post-date">{{ post.date | date_to_string }}</span>
</div>
{% endunless %}
{% endfor %}
</div>
I still am not completely sure on the why here, but I found that using contains rather than == solved my issue.
Related
I am new to Jekyll. I know that Jekyll supports to show recent post with the following code:
<div id="recent-posts" class="recent-posts">
{% for this_post in paginator.posts %}
<div class="post">
<a href="{{ this_post.url }}">
<h2 class="post-title">{{ this_post.title }}</h2>
</a>
{% include category_info %}
{% include source_info %}
</div>
{% endfor %}
</div>
But I would like not to show a category of posts, saying the category name is "notshowing". How can I make it?
To avoid showing a specific category you can use the unless filter:
executes a block of code only if a certain condition is not met (that
is, if the result is false).
So for example, inside the for loop, use {% unless post.categories contains "notshowing"%}
In your example, using the site posts site.posts instead of paginator.posts (you can adjust that to fit what you need) it would look like:
<div id="recent-posts" class="recent-posts">
{% for post in site.posts %}
{% unless post.categories contains "notshowing"%}
<div class="post">
<a href="{{ post.url }}">
<h2 class="post-title">{{ post.title }}</h2>
</a>
</div>
{% endunless %}
{% endfor %}
</div>
I'm sure this is simple but cant find the answer.
There is a standard Jekyll/Liquid post iterator. How do i use the {% if %} statement below to put the <hr> element for each post except the last?
<ul class="post-list">
{% for post in site.posts %}
{% if post.url %}
<br>
<li>
<h2>
<a class="post-link" href="{{ post.url | prepend: site.baseurl }}">{{ post.title }}</a>
</h2>
<span class="post-meta">{{ post.date | date: "%b %-d, %Y" }}</span>
</li>
**** {% if post != $last %} ***** How do i do this??
<hr>
{% endif %}
{% endif %}
{% endfor %}
</ul>
Yep, there's an easy solution for this.
Liquid has the forloop object, which can be used inside a loop to access some of its properties.
One of those properties is forloop.last:
Returns true if it's the last iteration of the for loop. Returns false if it is not the last iteration.
In other words, you can just do this:
{% if forloop.last == false %}
<hr>
{% endif %}
In my index of blog posts I'd like to grab the first image from the post to display it in the index using just liquid so it works on github pages.
I have a feeling split is the way to go, but I'm not good with liquid.
I'd like to be able to get the image url and put it in a variable to style it.
The ideal solution would be something like:
{% for post in site.posts %}
<li>
{{post.content | first_image}}
</li>
{% endfor %}
Any ideas?
You can define a custom variable to your Front Matter called "image", so it's going to work like Wordpress's posts Featured Image:
---
image: featured-image.jpg
---
Note to remember where is your image saved. In my case, I created a directory called "imagens" (PT-BR here). Then, go to your index.html and add the image to your template, wherever you want. In my site it looks like this:
<ul class="post-list">
{% for post in site.posts %}
<li>
<h2>
<a class="post-link" href="{{ post.url | prepend: site.baseurl }}">{{ post.title }}</a>
</h2>
<span class="post-meta">{{ post.date | date: "%b %-d, %Y" }},</span>
<span class="post-meta">por</span>
<span class="post-meta">{{ post.author }}</span>
</li>
//IMAGE
<img src="{{ site.baseurl }}/imagens/{{ post.image }}">
//IMAGE
{{ post.excerpt }}
<a class="btn btn-default" href="{{ post.url | prepend: site.baseurl }}">Continuar lendo</a>
{% endfor %}
</ul>
That's it.
Some solutions to your problem :
1 - Use the Post Excerpt tag Documentation is here
Your post :
---
layout: post
title: Testing images
---
## Title
Intro Text
More intro text
Some more text blah !
Your template :
<ul>
{% for post in site.posts %}
<li>
{{ post.title }}
{{ post.excerpt }}
</li>
{% endfor %}
</ul>
As your image tag appears before the excerpt_separator (\n\n = two newlines) it will be in the post excerpt.
2 - Use your post's Yaml front matter to store your image's datas
Post :
---
layout: post
title: Testing images
images:
- url: /assets/img/cypripedium-calceolum.jpg
alt: Cypripedium Calceolum
title: Cypripedium Calceolum
- url: /assets/img/hello-bumblebee.jpg
alt: Hello bumblebee !
title: Hello bumblebee !
---
Intro here yo ! <-- THIS IS THE EXCERPT
Post body begin, and first image not in excerpt
{% assign image = page.images[0] %} <-- first element of the array is zero
{% include image.html image=image %}
Some more text blah !
{% assign image = page.images[1] %}
{% include image.html image=image %}
_includes/image.html (centralized in an include for standardization, but can be in the template) :
<img src="{{ site.baseurl }}{{ include.image.url }}" alt="{{ include.image.alt }}" title="{{ include.image.title }}">
The index page :
<ul class="posts">
{% for post in site.posts %}
<li>
<span class="post-date">{{ post.date | date: "%b %-d, %Y" }}</span>
<a class="post-link" href="{{ post.url | prepend: site.baseurl }}">{{ post.title }}</a>
{{ post.excerpt }}
{% assign image = post.images[0] %}
{% include image.html image=image %}
</li>
{% endfor %}
</ul>
Got it to work. Not sure how it will scale, but this liquid code loops through all the posts and grabs the source for the first image from a post and displays that post. I tested it with multiple images and it works as expected.
<ul>
{% for post in site.posts %}
<li>
{% assign foundImage = 0 %}
{% assign images = post.content | split:"<img " %}
{% for image in images %}
{% if image contains 'src' %}
{% if foundImage == 0 %}
{% assign html = image | split:"/>" | first %}
<img {{ html }} />
{% assign foundImage = 1 %}
{% endif %}
{% endif %}
{% endfor %}
{{ post.title }}
</li>
{% endfor %}
</ul>
If you just need the image URL instead of the whole thing in img tag, you can use the following method.
Install Liquid filter match_regex:
gem install match_regex
Then add it to your Jekyll config:
plugins:
- match_regex
Create a capture snippet in your template:
{% capture post_first_image %}
{% assign hero_image = page.content | match_regex: '<img .*?src="([^"]+)"' %}
{% if hero_image == nil %}
{% assign hero_image = "/placeholder-image.png" | prepend: site_base %}
{% endif %}
{{ hero_image }}
{% endcapture %}
Template:
<meta property="og:image" content="{{ post_first_image | strip }}">
You can simply remove the if condition if you don't need placeholder image.
I've taken David's answer and found a way to get just the src attribute from the img tag.
{% assign foundImage = 0 %}
{% assign images = post.content | split:"<img " %}
{% for image in images %}
{% if image contains 'src' %}
{% if foundImage == 0 %}
{% assign html = image | split:"/>" | first %}
{% assign tags = html | split:" " %}
{% for tag in tags %}
{% if tag contains 'src' %}
<img {{ tag }} />
{% endif %}
{% endfor %}
{% assign foundImage = 1 %}
{% endif %}
{% endif %}
{% endfor %}
I want to make an archive page with the example generator from the Jekyll documentation. The generator works fine but I don't know to implement the layout correctly. I am using the following file so far:
{% assign cat = page.category %}
<div class="category-archive">
<div>
<span class="title">Category archive for {{ cat }}</span>
</div>
<div>
{{ cat }}
<ul class="posts">
{% for post in site.categories.cat %}
<li><span>{{ post.date | date_to_string }} - </span> {{ post.title }}</li>
{% endfor %}
</ul>
</div>
</div>
How can I use the current category from page.category like with a variable I am trying to use here?
TL;DR
I want to use a liquid variable at site.categories.*
The correct syntax for the loop is
{% for post in site.categories[cat] %}
I figured it out myself!
The line
{% for post in site.categories.cat %}
can be written like:
{% for post in site.categories.[page.category] %}
It didn't know about the use of these brackets!
I'm looping through two products - on the post view page I pull in a secondary post (in the example, a related recipe) which parses just fine on the first product page - on the second product page just {{ post.content }} won't parse. I can hack it with {{ post.content | markdownify }} - but I'd like to know why it's breaking. Here's the relevant code:
{% for post in site.categories.recipe %}
{% if post.products contains page.title and post.featured %}
<div class="row">
<div class="four columns">
<h4>{{ post.title }}</h4>
<ul>
<li>Serves {{ post.serves }}</li>
<li>Prep: {{ post.time }}</li>
<li>Share</li>
</ul>
{{ post.content }}
...
<!-- All tags are closed, the rest just isn't relevant -->
{% endif %}
{% endfor %}
Please find my solution with counter
<pre>
{% assign counter=0 %}
{% for post in site.posts%}
{% if post.category == 'blog' and counter < 2 %}
{% assign counter=counter | plus:1 %}
{{post.content}}
{% endif %}
{% endfor %}
</pre>
The markdownify filter is probably making it work because there might be special characters that aren't encoded in the content you're pulling from. I always forget to make my & into &.
If you're using the default Markdown interpreter Maruku, here's a list of the entities that might be giving you problems and their encoded equivalent. http://maruku.rubyforge.org/entity_test.html and more info on Maruku. http://maruku.rubyforge.org/maruku.html