Load image in html from saved path in Django database

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I’m trying to make a newspaper using Django and Mysql database and now I need to list the news images: In my database I have saved the image path, because I thought it would have a better performance than using an Imagefield. My code is like this:

<body>
<h2>Notícias</h2>
<ul>
{% for noticia in Noticias %}
    <li>{{noticia.titulo}} - {{noticia.texto}} - {{noticia.imagem}}
    <img src="{{noticia.imagem}}" > </li>
{% endfor %}</ul>

Only the image does not appear when I try to execute, is there something wrong in the code? Or is the image path described in the wrong way?

python django django-2.0

2 answers

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It works if noticia.imagem has a correct URL and that works for your image. Where are you storing the images? Is the app configured to serve static files from where they are? Just open the generated page in the browser, copy the "src" field from the image, paste it into the browser, and see that it’s not working - set it up and done.

It is only possible to answer so far, since you have not given details of where the actual images are, and what is the content of the "image" field (if it is a correct URL).

Detail that just switch to Imagefield, and put the image files themselves in the database will not do magic: you will need a view to respond to the image URL and deliver only the binary content of the image, and put the URL to that view in the field src of tags <img ...>.

0

As stated above, to be able to upload the image, its url needs to be correct which implies you have a static file server. The best way to do this would be to use a Imagefield, and configuring the MEDIA_URL and the MEDIA_ROT in the py Settings. of the project and then include this url in the py. of the project.

see how to serve static files on Django here Django-2.0-files

For a Imagefield make the following settings and this works perfectly:

Adds the MEDIA_ROT and MEDIA_URL in the py Settings.

# projeto/settings.py 
MEDIA_URL = '/media/' 
MEDIA_ROOT = os.path.join(BASE_DIR, 'media')

# projeto/urls.py
from django.conf import settings
from django.conf.urls import url
from django.contrib import admin
from django.urls import path, include
from django.views.static import serve

urlpatterns = [
    path('admin/', admin.site.urls),
    # incluir noticias.urls
    path('noticias/', include('noticias.urls')),
    # caminho para servir arquivos
    url(r'^media/(?P<path>.*)$', serve, {'document_root': settings.MEDIA_ROOT}),
]


# noticiasapp/models.py
from django.db import models

class Noticia(models.Model):
    titulo = models.CharField(max_length=200)
    imagem = models.ImageField(upload_to="media/images/noticias")
    texto = models.TextField()

# noticiasapp/urls.py
urlpatterns = [
    path('', views.listar_noticias, name="listar_noticias")
]


# noticiasapp/views.py
from django.shortcuts import render
from .models import Noticia

def listar_noticias(request):
    context = {'noticias': Noticia.objects.all()}
    return render(request, 'noticias/listar_noticias.html', context)

noticiasapp/templates/noticiasapp/listar_noticias.html

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>Noticias</title>
</head>
<body>
<ul>
    {% if noticias.count > 0 %}
        {% for noticia in noticias %}
            <li>
                <h3>{{ noticia.titulo }}</h3>
                <p>{{ noticia.texto }}</p>
                <img src="{{ noticia.imagem.url }}">
            </li>
        {% endfor %}
    {% else %}
        <h3>Sem notícias ainda</h3>
    {% endif %}

</ul>

</body>
</html>

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