README.py - master - Zero1l/321

README.py
94 строки3 KB
Zero1l
update README.py
08 окт 2025, 14:05
08 окт 2025, 14:055178bb8
# 321

class Tag(models.Model):
    name = models.CharField(max_length=50)

    def __str__(self):
        return self.name

python

class Article(models.Model):
    title = models.CharField(max_length=200)
    text = models.TextField()
    published_at = models.DateTimeField()

    class Meta:
        verbose_name = 'Статья'
        verbose_name_plural = 'Статьи'
        ordering = ['-published_at']

python

class Scope(models.Model):
    article = models.ForeignKey(Article, related_name='scopes', on_delete=models.CASCADE)
    tag = models.ForeignKey(Tag, related_name='scopes', on_delete=models.CASCADE)
    is_main = models.BooleanField(default=False)

    class Meta:
        unique_together = ('article', 'tag')


python

from django.forms import BaseInlineFormSet
from django.core.exceptions import ValidationError

class ScopeInlineFormset(BaseInlineFormSet):
    def clean(self):
        super().clean()
        main_count = 0
        for form in self.forms:
            if not form.cleaned_data or form.cleaned_data.get('DELETE', False):
                continue
            is_main = form.cleaned_data.get('is_main', False)
            if is_main:
                main_count += 1
        if main_count == 0:
            raise ValidationError('Должен быть выбран один основной раздел.')
        elif main_count > 1:
            raise ValidationError('Можно выбрать только один основной раздел.')
python

from django.contrib import admin
from .models import Article, Tag, Scope

class ScopeInline(admin.TabularInline):
    model = Scope
    formset = ScopeInlineFormset
    extra = 1  # Кол-во дополнительно создаваемых форм при редактировании

@admin.register(Article)
class ArticleAdmin(admin.ModelAdmin):
    inlines = [ScopeInline]
:

django

{% for scope in article.scopes.all %}
    <span class="badge {% if scope.is_main %}badge-primary{% else %}badge-secondary{% endif %}">
        {{ scope.tag.name }}
    </span>
{% endfor %}


python

class Article(models.Model):
    # поля...

    def get_sorted_tags(self):
        scopes = self.scopes.select_related('tag')
        primary_scope = [s for s in scopes if s.is_main]
        others = sorted([s for s in scopes if not s.is_main], key=lambda s: s.tag.name)
        sorted_scopes = primary_scope + others
        return [s.tag for s in sorted_scopes]


django

{% for tag in article.get_sorted_tags %}
    <span class="badge {% if tag.scope.is_main %}badge-primary{% else %}badge-secondary{% endif %}">
        {{ tag.name }}
    </span>
{% endfor %}