How to merge duplicates in Django?

Question

Django

models

class Characteristics(models.Model):
    name = models.CharField('Наименование', max_length=50)
    slug = models.SlugField(max_length=160, unique=True)

class ProductCharacteristics(models.Model):
    product = models.ForeignKey(
        Product, verbose_name='Товар', on_delete=models.CASCADE)
    characteristic = models.ForeignKey(
        Characteristics, verbose_name='Характеристика', on_delete=models.CASCADE)
    value = models.CharField('Значение', max_length=50)

views

def get_characteristics(self):
        return ProductCharacteristics.objects.all()

sample

{% for characteristic in view.get_characteristics  %}
          <div class="border-bottom pb-4 mb-4">
            <h4>{{ characteristic.characteristic.name }}</h4>
            <!-- Checkboxes -->
            <div
              class="form-group d-flex align-items-center justify-content-between font-size-1 text-lh-lg text-body mb-1">
              <div class="custom-control custom-checkbox">
                <input type="checkbox" class="custom-control-input" id="genderMen">
                <label class="custom-control-label text-lh-lg" for="genderMen">{{ characteristic.value }}</label>
              </div>
              <small>73</small>
            </div>
            <!-- End Checkboxes -->
          </div>
          {% endfor %}

Displayed like this


How to determine if the name in Characteristics is the same, then the value value was written under the Brand in this case. And if the values ​​are the same, then it should not be repeated?

Answer 1

The name field is not unique. There can be any number of instances. Merge them - that's still crap, it's easier to immediately score there unique=True

class Characteristics(models.Model):
    name = models.CharField('Наименование', max_length=50, unique=True)

This is first.
Second - why get these values ​​from the product? It is necessary to call Characteristics and call on feedback. If it's a list of Characteristics - why print ProductCharacteristics at all. Most likely - two products, that's why the problem
And thirdly: the names of the models are only in the singular