Wagtail/Django Taggit – Unique Tag pool for each set of child pages

Are you tired of dealing with a messy and cluttered tag system in your Wagtail/Django project? Do you wish you could have a unique tag pool for each set of child pages, making it easier to organize and manage your content? Well, you’re in luck! In this article, we’ll show you how to achieve just that using Wagtail and Django Taggit.

Why Unique Tag Pools Matter

Having a unique tag pool for each set of child pages can greatly improve the usability and scalability of your project. Here are just a few benefits:

• Reduced Tag Clutter: With a unique tag pool for each set of child pages, you’ll no longer have to deal with a long list of tags that are irrelevant to the current section of your site.
• Improved Content Organization: By having separate tag pools, you can create a more organized and structured content hierarchy, making it easier to find and manage related content.
• Enhanced User Experience: Visitors to your site will appreciate the more focused and relevant tag system, leading to a better overall user experience.

Setting Up Django Taggit

Before we dive into the implementation, make sure you have Django Taggit installed and configured in your project. If you haven’t already, follow these steps:

1. pip install django-taggit
2. Add ‘taggit’ to your INSTALLED_APPS in settings.py:

  INSTALLED_APPS = [
    ...
    'taggit',
    ...
  ]
  

Creating a Custom Tag Model

To create a unique tag pool for each set of child pages, we’ll need to create a custom tag model that inherits from Django Taggit’s default Tag model. Create a new file called models.py in your app directory, and add the following code:

from django.db import models
from taggit.models import TagBase, GenericTaggedItemBase, TaggedItemBase
from wagtail.core.models import Page

class CustomTag(TagBase):
    page_type = models.ForeignKey('wagtailcore.Page', on_delete=models.CASCADE, related_name='tags')

    class Meta:
        verbose_name = "Custom Tag"
        verbose_name_plural = "Custom Tags"

In this example, we’ve added a page_type field to the custom tag model, which will store the related page type for each tag.

Creating a Custom TaggedItem Model

Next, we need to create a custom tagged item model that will store the many-to-many relationship between our custom tags and Wagtail pages. Add the following code to the same models.py file:

class CustomTaggedItem(GenericTaggedItemBase, TaggedItemBase):
    tag = models.ForeignKey('CustomTag', on_delete=models.CASCADE, related_name=' tagged_items')
    content_object = models.ForeignKey('wagtailcore.Page', on_delete=models.CASCADE, related_name='tagged_items')

    class Meta:
        verbose_name = "Custom Tagged Item"
        verbose_name_plural = "Custom Tagged Items"

In this example, we’ve created a custom tagged item model that uses our custom tag model and Wagtail’s page model.

Registering the Custom Tag Model with Wagtail

To register the custom tag model with Wagtail, add the following code to your models.py file:

from wagtail.admin.edit_handlers import FieldPanel
from wagtail.core.fields import RichTextField
from wagtail.core.models import Page
from wagtail.snippets.edit_handlers import InlinePanel

class CustomPage(Page):
    tags = ClusterTaggableManager(through='CustomTaggedItem', blank=True)

   -content_panels = Page.content_panels + [
        InlinePanel('tags', label="Tags"),
    ]

@register_snippet
class CustomTag(TagBase):
    ...

In this example, we’ve created a custom page model that uses the custom tag model and registered it as a snippet.

Implementing the Unique Tag Pool

Now that we have our custom tag model and tagged item model set up, let’s implement the unique tag pool for each set of child pages. Add the following code to your views.py file:

from django.shortcuts import render
from wagtail.core.models import Page
from .models import CustomTag, CustomTaggedItem

def get_unique_tags(request, page_id):
    page = Page.objects.get(id=page_id)
    child_pages = page.get_children()
    unique_tags = CustomTag.objects.filter(tagged_items__content_object__in=child_pages)
    return render(request, 'template.html', {'unique_tags': unique_tags})

def template.html
{% for tag in unique_tags %}
  {{ tag.name }}
{% endfor %}

In this example, we’ve created a view function that takes a page ID as an argument, gets the child pages, and retrieves the unique tags for those child pages using the custom tag model.

Conclusion

And that’s it! With these steps, you should now have a unique tag pool for each set of child pages in your Wagtail/Django project. This will greatly improve the usability and scalability of your project, making it easier to manage and organize your content. Remember to customize and extend this implementation to fit your specific project requirements.

Benefits	Description
Reduced Tag Clutter	Unique tag pools reduce the amount of clutter and irrelevant tags
Improved Content Organization	Separate tag pools create a more organized and structured content hierarchy
Enhanced User Experience	Visitors will appreciate the more focused and relevant tag system

Troubleshooting Tips

• Check your migrations: Make sure you’ve run the necessary migrations to create the custom tag and tagged item models.
• Verify your page hierarchy: Ensure that your page hierarchy is correctly set up, with child pages inheriting from the correct parent pages.
• Debug your code: Use Django’s built-in debugging tools to troubleshoot any issues with your implementation.

Final Thoughts

By following these steps, you should now have a unique tag pool for each set of child pages in your Wagtail/Django project. Remember to keep your implementation flexible and adaptable to future changes, and don’t hesitate to reach out if you have any questions or need further assistance.

Happy coding!

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