Not showing the photo

Using Django Mystery Errors
1

this is my codes

class Slide_Item(models.Model):
    title = models.CharField(max_length=100, verbose_name="title")

    class Meta:
        verbose_name = "slide item"
        verbose_name_plural = "slide items"

    def __str__(self):
        return self.title




class Image(models.Model):
    post = models.ForeignKey(Slide_Item, on_delete=models.CASCADE, verbose_name="post", related_name="images")
    image_file = models.ImageField(verbose_name="image", upload_to="post_image")
    title = models.CharField(max_length=100, verbose_name="title")

    class Meta:
        verbose_name = "image"
        verbose_name_plural = "images"

    def __str__(self):
        return self.title

this is my template

{% extends 'parent/base.html' %}
{% block content %}
    <div>
<img src="{{ post.images.first.image_file.url }}" alt="Slider Image" />
    </div>
{% endblock %}

It doesn’t show the photo in the template, apparently it is correct, but I don’t know what else to do

2

Verify the html - look at what’s rendered on the page.

Verify the url by trying to access it directly.

You’re not showing the view so we don’t know what’s in the context to verify the reference.

3

need add views.py code