I'm trying to grab a specific item from a collection called 'content' based on an id using where_exp, but for the life of me I can't get it to work. Here's the code:
filter:
{% assign var = site.content | where_exp:"content", "content.id == 'testId'" | first %}
frontmatter for post in collection:
---
layout: content
title: "This is the title"
image: "assets/photos/image.jpg"
id: "testId"
---
html:
<img class="full-width-poto" src="{{ var.image }}">
I can't figure out what I'm doing wrong.
Note, I've been referring to this post: Getting a specific item from a collection in Jekyll and https://riptutorial.com/jekyll/example/28446/accessing-a-specific-collection-item
Ok, I figured out my problem, just in case someone comes across this. For some reason I can't use the key 'id' for this...it must be hardcoded for something else.
I swapped in 'myid' and it works fine now...
Related
I try to do a search engine if the word in my DB thah I created then display the word on the HTML page and if not then nothing.. I did it right in VIEW but I can not apply it on the HTML page I searched the internet and did not find an answer I'm sure I fall for something stupid.
This is the view
def Search_word(request):
search = request.POST.get("search") #Grab the search item
return render(request,"search_page.html", {"search":search})
this is the html:
{%for i in Word.English_word%}
{%if search in Word.English_word%}
{{search}}
{%endif%}
{%endfor%}
and the urls:
path("Search_page",views.Search_word ,name="Search-page"),
models:
class Words(models.Model):
English_word = models.CharField(max_length=30)
Hebrew_word = models.CharField(max_length=30)
How_To_Remember = models.CharField(max_length=40)
Name = models.CharField(max_length=20)
pub_date = models.DateTimeField()
The problem is that even if the word is valid it does not show me anything ..
You should implement the filtering logic in the view, not in the template. Templates are for rendering logic, not business logic. Furthermore one should filter with the database, since databases are designed to do this.
The view thus looks like:
def Search_word(request):
search = request.POST.get('search')
items = Word.objects.filter(English_word__contains=search)
return render(
request,
'search_page.html',
{'search': search, 'items': items}
)
and then in the template we render this with:
{% for item in items %}
{{ item.English_word }}: {{ item.Hebrew_word }} <br>
{% endfor %}
You can use as lookup __contains to check if the English_word has a substring that is equal to search, with __icontains you check case-insensitive, with __iexact you look for Words that match search case-insensitive, and finally you can filter with Engish_word=search for an exact match.
I'm writing a site in Jekyll, which uses Liquid.
I have ymal for pages , like this:
---
title: Mytitle
posted: 2020-06-29
updated: 2020-07-29
....
---
And I have some posts, as follows
{
title: title1
posted: 2020-06-29
updated: 2020-07-29
},
{
title: title2
posted: 2020-07-05
},
{
title: title 3
posted: 2020-07-01
updated: 2020-07-20
},
{
title: title 4
posted: 2020-07-22
},
I expect the order of posts which is sorted by the latest date, i.e. latest(posted, updated).
liquid seems cannot sort by custom function? Can someone tell me what to do?
Thanks
By default site.posts are sorted by the date property (newest fist), which you called posed. So you may want to rename it to date to make your life easier.
For custom sorting you can use the Liquid sort filter, which takes one argument.
So if you want to sort by updated instead, you can do that with:
{% assign my_sorted_list = site.posts | sort:"updated" %}
{% for post in my_sorted_list %}
...
{% endfor %}
You'll need to set the updated property then for every post or use a custom hook as explained here.
I have a CSV file in my _data folder and I am trying to specify the row of the CSV to access in my Front Matter and then return specific columns from the CSV based on the row specificed in the Front Matter.
Here's the CSV file:
name,description
Dallas,Big City in Texas
And here's the contents of my index.html file:
---
city: "Dallas"
---
{{ site.data.data[page.city].description }}
Per the Jekyll Docs page on using data files, I should be able to use this syntax to access data files in this way, but the compiled html file does not include any data.
I have tested other ways of accessing the contents of the CSV file and those work, so it doesn't appear to be a problem with the data file or the site itself but rather with using the [ ] array id Liquid syntax.
Looks like you have misunderstood the [] notation for a hash structure.
I will first orient you on how the [] is supposed to work..
Expanding your data.csv a bit:
name,description
Dallas,Big City in Texas
Houston,Another City in Texas
and "inspecting" your the data object obtained from the above CSV file,
{{ site.data.data | inspect }}
on building the site, you'll see that the resultant object is simply an Array of Hashes :
<p>
[
{"name"=>"Dallas", "description"=>"Big City in Texas"},
{"name"=>"Houston", "description"=>"Another City in Texas"}
]
</p>
which means you can only access individual hash entry by referencing its index number.
i.e. {{ site.data.data[0] }} will give you the first hash and {{ site.data.data[1] }} will give you the next hash.
and therefore {{ site.data.data[0].description }} will give you the result you expect to get:
<p>
Big City in Texas
</p>
Now that you know how [] works for data hashes, lets simply get to the solution.
To access elements in an Array, one can simply iterate through the Array objects and reference necessary entries:
{% for entry in site.data.data %}
<div>
<span>{{ entry.name }}</span> : <span>{{ entry.description }}</span>
</div>
{% endfor %}
will give you:
<div>
<span>Dallas</span>
<span>Big City in Texas</span>
</div>
<div>
<span>Houston</span>
<span>Another City in Texas</span>
</div>
I'm building a website in Go, using the Hugo static site generator. What I'm trying to do is build a dynamic navigation bar for my web pages.
Here's what I'm doing:
In my config.yml file, I've defined a Map of links that I'd like to appear in my navbar -- here's what this file looks like:
baseurl: "https://www.rdegges.com/"
languageCode: "en-us"
title: "Randall Degges"
params:
navLinks: {"Twitter": "https://twitter.com/rdegges", "Facebook": "https://www.facebook.com/rdegges", "Google+": "https://plus.google.com/109157194342162880262", "Github": "https://github.com/rdegges"}
So, I've also got an index.html template in Hugo that contains a navbar which looks like this:
<nav>
<ul>
{{ range sort $title, $link := .Site.Params.navLinks }}
<li>{{ $title }}</li>
{{ end }}
</ul>
</nav>
This above code works correctly, with one exception: I'd like to order the results of my links instead of having them randomly ordered each time.
I know that Maps are not inherently structured in Go -- but is there a way to retain the original ordering of my navigation elements in some way?
Thanks for the help!
Go templates sort maps by key. If you want to force a specific order, then use a slice:
Here's the YAML:
baseurl: "https://www.rdegges.com/"
languageCode: "en-us"
title: "Randall Degges"
params:
navLinks:
- title: Twitter
url: https://twitter.com/rdegges
- title: Facebook
url: https://www.facebook.com/rdegges
... and the template:
<nav>
<ul>
{{ range $link := .Site.Params.navLinks }}
<li>{{ $link.title }}</li>
{{ end }}
</ul>
</nav>
I am trying to create a dynamic hyperlink that depends on a value passed from a function:
{% for item in field_list %}
<a href={% url index_view %}{{ item }}/> {{ item }} </a> <br>
{% endfor %}
The problem is that one of the items in field_list is "Hockey Player". The link for some reason is dropping everything after the space, so it creates the hyperlink on the entire "Hockey Player", but the address is
http://126.0.0.1:8000/Hockey
How can I get it to go to
http://126.0.0.1:8000/Hockey Player/
instead?
Use the urlencode filter.
{{ item|urlencode }}
But why are you taking the name? You should be passing the appropriate view and PK or slug to url which will create a suitable URL on its own.
Since spaces are illegal in URLs,
http://126.0.0.1:8000/Hockey Player/
is unacceptable. The urlencode filter will simply replace the space with %20, which is ugly/inelegant, even if it does kind of get the job done. A much better solution is to use a "slug" field on your model that represents a cleaned-up version of the title field (I'll assume it's called the title field). You want to end up with a clean URL like:
http://126.0.0.1:8000/hockey_player/
To make that happen, use something like this in your model:
class Player(models.Model):
title = models.CharField(max_length=60)
slug = models.SlugField()
...
If you want the slug field to be pre-populated in the admin, use something like this in your admin.py:
class PlayerAdmin(admin.ModelAdmin):
prepopulated_fields = {"slug": ("title",)}
....
admin.site.register(Player,PlayerAdmin)
Now when you enter a new Player in the admin, if you type "Hockey Player" for the Title, the Slug field will become "hockey_player" automatically.
In the template you would then use:
{% for item in field_list %}
<a href={% url index_view %}{{ item.slug }}/> {{ item }} </a> <br>
{% endfor %}
There is this builtin filter .
http://docs.djangoproject.com/en/dev/ref/templates/builtins/#urlencode
Although you should be using one of these
http://docs.djangoproject.com/en/dev/ref/models/fields/#slugfield