Develop Reference

How to write urls in static format in django

I am unable to upload
style="background-image:url(images/home_slider.jpg)"
file in django. I have made two changes in settings .That is as follows:
STATIC_URL = '/static/'
STATICFILES_DIRS=[ os.path.join(BASE_DIR,'static')]
STATIC_ROOT=os.path.join(BASE_DIR,'assets')
I also tried this
style=" {% static'background-image:url(images/home_slider.jpg)' %}"
But unable to remove error.

Adding more details:
load static files in your template
{% load staticfiles %}
Usage of img tag:
<img src="{% static 'images/image.jpg'%}" alt="">
In your case:
style="background-image: url('{% static "images/image.jpg" %}');"

Add static only where you use the path of the file. So:
style="background-image: url({% static 'images/home_slider.jpg' %});"
Don't forget to place {% load static %} at the top.

Django -- Dynamically showing Images that are created daily

What I want to accomplish is have an separate application generate graphs that will be placed in a directory of my Django project. Then in my template loop through and display all the graphs from that directory on the webpage. The generated graphs will be refreshed daily and will be of varying numbers depending on the day (so some days it could be 20 and/or the next it could be 50).
Option 1)
I don't think I want to use django manage.py collectstatic everyday. I've never gotten to the point of deploying a Django project to a server but my assumption is that I would have to collectstatic manually everyday on the server (which I could be thoroughly off on here)
Option 2)
I've tried creating a model Model Picture. The Char field is just my relative path to the picture. From there in my views I'm to rendering the path in the index(request) View Picture. From there in my template I'm trying to loop through the picture relative paths and show them Template Picture. When I remove photos = Photo.objects.all() & the {% for img in photos %} in the template the page does load Webpage working. However when I run it with all those parts in there I get a blank webpage with "what do you want to do with index" at the bottom. Webpage not working
Interested to hear if there are any better way of doing this . I'm not trying to user upload an image field because the amount of graphs will be substantial.
Details on Option 2:
---Notes---
Top Lvl Directory is--chartingtest-project
chartingtest is the project
sectors is the name of the app
media folder is a folder in the top level directory, not within the project or test folder
models.py in sectors app contains
class Photo(models.Model):
photoname = models.ImageField()
views.py in sectors app contains
from .models import Photo
def index(request):
pets = Pets.objects.all()
photos = Photo.objects.all()
return render(request, 'index.html', {'pets': pets}, {'photos': photos})
index.html template
{% load static %}
<H1>Hello World Index!</H1>
#Testing bringing in variables from a model (2020/05/07 Works!)
<ul>
{% for pet in pets %}
<li>{{pet.name}}</li>
{% endfor %}
</ul>
# ************************************
# This is where I'm trying display generated pictures from the media folder
# ************************************
<ul>
{% for img in photos %}
<li>
<img src="chart1s/{{img.image.url}}" />
</li>
{% endfor %}
</ul>
#Testing Static Image (2020/05/08 Works!)
<img src="{% static "OIP.jpg" %}"/>
<img src="{% static "temp_fig_00.png" %}"/>
settings.py in chartingtest project folder
#Media ROOT
MEDIA_ROOT = os.path.join(BASE_DIR, 'media/')
MEDIA_URL = '/media/'

You are correct that using static files will not work, by their name static files are not supposed to change.
The solution is to create a media folder and have your application save the graphs to that folder. Your model picture should point to that folder. Like you said, in your templates you can then iterate over that model to display all the graphs.
In production, you should create a cloud storage bucket and save your images there. Then make sure your settings.py directs any requests for images to your storage bucket.
Your picture model should use models.ImageField(), not a typical CharField, image = models.ImageField(). In your template as you iterate, you should call each image with <img src="{{ picture.image.url }}"
Apart from that, I would need to look in depth at the code to see what's going on, and I don't click links on stackoverflow posts. If you'd post the code in a comment might be able to take a closer link, but try those things first!

getting an image from static/img into a template in Django

I have a Django project with a static/img folder I want to get this image loaded but since it's in a variable and static points to my static folder, not static/img I'm not sure how to get it in. I tried f'img/{project.image}'
I'm iterating through projects so
project.image is set to equal "some_image_for_this_project.jpg" in my database
<img class="card-img-top" src="{% static project.image %}">

Probably not the most elegant solution, but this is how it should work:
<img src="{% static 'images/' %}{{ project.image }}>

Maybe it will help
1.) Youre template.html
{% load static %}
{% static 'img/name_img.jpg' %}
*This solution works for the directory structure
app
/__pycache__
/migrations
/templates
/static/img/[YOURE_FILES...]
__init__.py
[...]

load static file with variable name in django

I'm trying to do load the following static file
img file
where image is in a for loop of images derived from a database.
But I simply got an error Could not parse the remainder: '{{' from ''static/matrices/'{{'
What should I do to fix this? I can't use relative paths because this will be used by subsections as well, with the same html template.

You should pass a full string to the static tag from staticfiles. This is so it can use your staticstorages to find your file.
{% load staticfiles %}
{% with 'images/'|add:image.title|add:'.png' as image_static %}
{% static image_static %}
{% endwith %}
But in your use case it might be better if you just store the path of the images on the image model itself.

I got this to work by using an empty string for the static path and then using my variables in their own section, like this:
<a href= "{% static "" %}{{obj.a}}/{{obj.b}}/{{obj.c}}.gz" >Name</a>

You can use get_static_prefix template tag. get_static_prefix is a variable that contains the path specified in your STATIC_URL. Your code would be:
{% load static %}
img file
or
{% load static %}
{% get_static_prefix as STATIC_PREFIX %}
img file
Reference: get_static_prefix

You should avoid nesting tags.
What are you trying to solve? Isn't the image part of dynamic content? The static tag is for static content not uploaded media files.
If you must use the static tag the correct way would be something in the order of;
{% static image %} or {% static image.file %}
Depending on the object layout. If you're using an ImageField (inherits FileField) the image object already holds the path, so there's no need to manually add extensions.

What I ended up doing was to just split the path from the name itself. Those images represents tabs, are static and in a sequence. They are not connected to the database imagewise.
I didn´t want to repeat the html for every run so I ended up doing a forloop like this, a bit simplified.
{% for option in options_obj %}
<img class="highlight" src="{% static "store/img/editor/tab-" %}
{{ option.name.lower }}-selected.png">
{% endfor %}
EDIT:
Even though this does work in most situations it can really mess stuff up as well. For me this occured when having different images for different language settings and at the same time using tools like CachedStaticFilesStorage. If you need to add language code or something else to your image this is a more solid solution
{% for option in options_obj %}
<img class="highlight" src="{% static "store/img/editor/tab-"
|add:LANGUAGE_CODE|add:"-selected.png" %}">
{% endfor %}

Too many quotes!
Just
img file
and you don't have to call the static in the link because you already load the static

HTML Image Insertion Django

I'm working to build a django web application. I'm using adobe brackets for the html and I'm trying to use an image from my folders on the website. The image appears during the brackets simulation, but not during django runserver.
here is my folder directory:
mysite-
Images-
livestream-
helloworld.jpg
templates-
livestream-
helloWorld.html
This is a very simplified version of the site, but you get the idea.
My html code asks for the image:
<img src="../../Images/livestream/helloworld.jpg" alt="helloWorld" width="590" height="269">
when I run the django server it returns:
[18/Jul/2013 09:11:40] "GET /livestream/Images/livestream/helloworld.jpg HTTP/1.1" 404 2605
Does anyone know how to fix this issue?

This has to do with how your staticfiles app related settings are set up for your project.
You should also use the static template tag in order to fetch your static media.
For example, assuming that your structure under the location of any filepath within the STATICFILES_DIRS tuple is the following:
{{STATICFILES_ROOT_DIR}}/Images/livestream/helloworld.jpg
you can fetch the static file using:
{% load static from staticfiles %}
{% static "Images/livestream/helloworld.jpg" as myimg %}
<img src="{{ myimg }}" alt="helloworld" />

Why don't you set your {{ STATIC_URL }} in your settings, as per the docs to point to your Images folder and then just type in
<img src="{{ STATIC_URL }}livestream/helloworld.jpg" alt="helloWorld" width="590" height="269">
This is the standard approach to manage static files, and will turn out useful in the future as well