CODEWITHSUNDEEP
djangodjango-modelsdjango-viewsdjango-forms
afi
afi

Reputation: 603

how can i get all attribute data from ManyToMany field Django?

i want to get all attribute data of articles in SetRundown forms like title, category, author via ManyToManyfield i want to show all article in Rundown form with title category and author name can anybody know how can i do this...? if i run my code with {% render_field form.articles %} then it will show the all articles title but i want the category and author name too with titles....

models.py

class Article(models.Model):
    title = models.CharField(max_length=300, help_text="Short title")
    category = models.ForeignKey(Category, on_delete=models.CASCADE)
    author = models.ForeignKey(User, on_delete=models.CASCADE)


class SetRundown(models.Model):
    pool_title = models.CharField(max_length=200)
    articles = models.ManyToManyField(Article)

forms.py

from django import forms

class SetRundownForm(forms.ModelForm):
    class Meta:
        model = SetRundown
        fields = ['pool_title', 'time_pool', 'articles']

    def __init__(self, *args, **kwargs):
        super(SetRundownForm, self).__init__(*args, **kwargs)
        self.fields['articles'].queryset = Article.objects.filter(story_status='fr')

create_form.html

<form method="POST">{% csrf_token %}
    {% render_field form.pool_title type="text" %}

    {% render_field form.time_pool type="menu"  %}

    {% for article in form.articles  %}
    
    {{ article.title }}
    {{ article.category }}
    {{ article.author.username }}
    
    {% endfor  %}

    <button class="btn btn-secondary" type="submit">Submit</button>
</form>
{% endblock %}

Upvotes: 1

Views: 922

Answers (1)

willeM_ Van Onsem
willeM_ Van Onsem

Reputation: 477190

You can access the .queryset of the .field:

{% for article in form.articles.field.queryset %}
    {{ article.title }}
    {{ article.category }}
    {{ article.author.username }}    
{% endfor %}

In your SetRundownForm, you can make use of .select_related(…) [Django-doc] to avoid an N+1 problem:

class SetRundownForm(forms.ModelForm):
    class Meta:
        model = SetRundown
        fields = ['pool_title', 'time_pool', 'articles']

    def __init__(self, *args, **kwargs):
        super(SetRundownForm, self).__init__(*args, **kwargs)
        self.fields['articles'].queryset = Article.objects.select_related(
            'author'
        ).filter(story_status='fr')

Upvotes: 2

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