I'm trying to create a simple "recipe" form with a title and a list of
ingredients, which allows a user to add additional ingredients to the
recipe.
I'm struggling, however, to implement this in Django. Particularly how to
associate a formset with a field in a form. I'm sure it's a simple solution
and one that's been done many times, but I must be missing something.
I've got a model called Recipe that has a 1:n relationship with Ingredient.
That means, a Recipe can have many Ingredients, but an Ingredient can only
belong to 1 Recipe.
*models.py:*
class Recipe(models.Model):
title = models.CharField(blank=True, null=True, max_length=100)
class Ingredient(models.Model):
title = models.CharField(blank=True, null=True, max_length=1000)
recipe = models.ForeignKey(Recipe)
The next step would be to set up model forms using the above 2 Models,
which I've done.
*forms.py:
*
class IngredientForm(forms.ModelForm):
class Meta:
model = Ingredient
class RecipeForm(forms.ModelForm):
class Meta:
model = Recipe
I know I now need to use formset_factory in order to display a list of
Ingredients. This is where I'm stuck.
*views.py*
from django.forms.formsets import formset_factory
# This obviously just gives me a Recipe form
recipe_form = RecipeForm(request.POST or None)
# This gives me a list of Ingredient forms in a formset, which is what I
want, but I would like it to be associated with a Recipe
ingredient_formset = formset_factory(IngredientForm)
The above 2 lines of code will give the IngredientForm and RecipeForm as
two separate forms that I can send to the template. However, there must be
a way to display the recipe_form so that it displays the ingredient_formset
as a "field" of a recipe_form. Subsequently, the user should be able to add
extra ingredients to the recipe.
I've had a read of the django documentation and haven't been able to come
across anything there. Is there a particular section of the django docs
that I should be focusing my attention on to get me unstuck? Or is there
another way I should be approaching this?
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