In My django admin form I have one Image Upload field and also It has been done for the preview support.Also I has clear option to clear that image in the object.If i need to select another image with also clicking the clear option "It does't do that" At a time it says only one option will be done.What I should have to do for the both operations?
Also What could do to have multiple ImageFields in django admin form?What are the ways to do it?
Use django inline model admin here
earlier question on SO: go here
Related
I know how to make it possible to create/edit/delete a multiple-row database model through django admin page. But let's say I want to make it possible to modify the single banner image of my site through admin page, what am I supposed to do then?
Should I create an entire database model for one item? Or is there a better way to implement this?
You can either create your own model for these types of settings, or you can use one of the many packages designed to handle this type of situation:
https://djangopackages.org/grids/g/live-setting/
I'm currently in the process of rebuilding my WordPress website into a full Django web app. With WordPress, I had made great use of the awesome Advanced Custom Fields plugin, and I'm struggling to get the same functionality with Django. One field in particular with ACF is called a "Repeater Field" that lets me click a button to add another row to an array.
I did manage to get something similar working with Django, but only in the Admin part. I've used this plugin "Django Better Admin ArrayField" - https://github.com/gradam/django-better-admin-arrayfield and it displays the arrayfield exactly as I want:
Django Better Admin ArrayField
How can I get this to work on the frontend of the site, like in a user-submitted form?
How would I add a rich-text HTML content editor in my Django admin view?
For example, if I want to change the content on my homepage, what python code would I have to input for the HTML to be displayed when I log into the admin portal?
I want to be able to view all of my pages (hopefully even be able to add/delete them), and edit the content directly from the admin view. Similar to something like this:
http://feincms-django-cms.readthedocs.org/en/latest/_images/item_editor_content.png
I appreciate any and all help! Thank you!
The html shown there is there cuz it is in the database. If what you want is a cms, there are several of those for django like django-cms, wagtail, mezzanine among others.
If, on the other hand, you have a model already and want to display it in the admin, you can register it:
from django.contrib import admin
from myproject.myapp.models import Author
class AuthorAdmin(admin.ModelAdmin):
pass
admin.site.register(Author, AuthorAdmin)
In that example, the Author model will show up in admin for edition.
In the last case, where you already have your model registered but you want to have a WYSIWYG editor, check the django-grid for that kind of package and find one suitable, or install one manually.
You have several options in case you want to try the second approach: ckeditor, tinymce, etc.
Is there any ready apps for django admin, that allows to edit model in popup?
I want next functionallity:
View edit form for model in popup.
On model save - update row in list of models.
Motivation: reduce page reloads.
Also, if there any solutions oriented on massive manual data updates for django? I've taken a look at django grappelli - it improves view of data, but edit data is still not usable.
P.S.: If such kind of app is not available - I'll start open source project.
If you want to open a popup, simply create a link to your 'add' view with the following attribute on that link onclick='return showAddAnotherPopup(this);'
You can do most of what you ask there (at least point 1 and 2) using the django built in admin customisations.
Have a look at https://docs.djangoproject.com/en/dev/ref/contrib/admin/
The django admin itself already uses some things similar to this, pay special attention to the django _popup=1 variable in the request URI.
You will have to add a custom modelname_change_list.html file to provide some javascript and in the ModelAdmin override the delet_view, change_view, response_add and potentially response_change.
By default, Django's admin renders ForeignKey fields in admin as a select field, listing every record in the foreign table as an option. In one admin-accessible model, I'm referencing the User model as a ForeignKey, and since I have thousands of users Django is populating the select with thousands of options. This is causing the admin page to load incredibly slowly, and the select is not very useful since it can take a while to scroll through thousands of options to find the one you want.
What's the best way to change the rendering of this field in order to improve page load and usability? I'd like the select field to be replaced with some sort of button to launch a search form popup, or a text field that searches keywords via Ajax to find the Id for the specific User they want to associate. Does admin have anything like this builtin, or would I have to write this from scratch?
Add raw_id_fields to your model to only show the ID instead of a dropdown.
You're right, Cerin, the cause of the slowdown is because Django is populating the <select> element with too many options. You might want to use an autocomplete element instead.
Interestingly, Django 2.0 has introduced a new feature on the admin site, called autocomplete_fields, which I think you will find useful in this case. It uses AJAX.
class ExampleAdmin(models.ModelAdmin):
autocomplete_fields = ['example_field_user']
You can use one of the few autocomplete apps for Django. Check them at Django Packages.
There's also django-extensions that have ForeignKeyAutocompleteAdmin that fit your needs pretty well.
Another option is to add readonly_fields instead of raw_id_fields