Codemy Django Simple Blog Series 12

Youtube 37 Video Course

Add Blog Categories

Length 20:10

So my plan is to watch the video and take notes - not code but flow, bash instructions, etc. Then go back through the same video and write the code. I'm capturing more code in these notes and I think it's working well.

Put a new class in models.py - he placed it before class Post

class Category(models.Model):
    name = models.CharField(max_length=255)
    def __str__(self):
        return self.name
    def get_absolute_url(self):
        return reverse('home')

Add to end of class Post in models.py:

category = models.CharField(max_length=255, default='coding')

Do makemigrations and migrate
In theblog/admin.py import Category after Post, and register Category just like Post is registered.
Using admin page he added coding, sports and entertainment to categorys
In theblog/forms.py, put 'category' between author and body on fields line
Then in widgets after author, copy author line and change author to category
Could hard code your categories in forms.py by creating a list choices = [('coding', 'coding'), ('sports', 'sports'), ('entertainment', entertainment')
Then in widgets first thing in 'category': forms.Select(choices = choices)
Not doing that in this case - so still in forms.py add Category to the from .models import

Then after the import statements do a query of the Category class

choices = Category.objects.all().values_list('name','name')
choice_list = []
for item in choices:
    choice_list.append(item)

# then in widgets:
'category': forms.Select(choices=choice_list, attrs......)

Now create a page to manage categories rather than having to use the admin page.

In views.py from .models import Post, Category and add a class:

class AddCategoryView(CreateView):
    model = Category
    template_name = 'add_category.html'
    fields = '__all__'

Create new template add_category.html
Copy contents of add_post.html and change title to Create a New Category, h1 to Add Category and button text to Add Category.
In urls.py import AddCategoryView and new path after add_category path('add_category/', AddCategoryView.as_view(), name='add_category'
In base.html copy add_post li block, changing url to 'add_category' and text to Add Category
In home.html in the for loop after post.title add a line - {{ post.category }}
Need to add an edit category page and a way to just list posts with a certain category.