Question

我在Django项目上工作，我想显示一些图像到模板，但是尽管可以上传它们，但无法显示它们。

class Sindiasmoi(models.Model):
    sindid = models.AutoField(db_column='sindID', primary_key=True, db_index=True)  # Field name made lowercase.
    descr = models.CharField(max_length=100)
    shortdescr = models.CharField(db_column='shortDescr', max_length=50)  # Field name made lowercase.
    photo = models.ImageField(db_column='photo',upload_to='sindiasmoi',default='elections.jpg',null=True, blank=True)
    eidos = models.IntegerField(default=1)

def __str__(self):
    return self.descr

class Meta:
    managed = True
    db_table = 'SINDIASMOI'

我的看法是：

def pososta_telika(request, eklid):
    # φιλτράρισμα επιλεγμένης εκλ. αναμέτρησης
    selected_ekloges = Eklogestbl.objects.get(eklid=eklid)
    # επιλογή όλων των εκλ. αναμετρήσεων με visible=1 και κάνω φθίνουσα ταξινόμηση  αν δεν δοθεί παράμετρος
    all_ekloges = Eklogestbl.objects.filter(visible=1).order_by('-eklid')
    #ανάκτηση εγγραφών επιλεγμένης εκλ. αναμέτρησης από το σχετικό database view
    all_pososta = EklSumpsifodeltiasindVw.objects.filter(eklid=eklid).order_by('-posostosindiasmou')

    context = {'all_pososta':all_pososta, 'all_ekloges':all_ekloges, 'selected_ekloges':selected_ekloges.eklid}

    return render(request, 'Elections/pososta_telika.html',context)

我的模板代码具有以下代码：

{% for p in all_pososta %}

    <img src="{{ p.sindid.photo}}" alt="image"/>
{% endfor %}

我也在我的settings.py中添加了以下行：

STATIC_ROOT = os.path.join(BASE_DIR, 'static')
STATIC_URL = '/static/'

MEDIA_ROOT = os.path.join(BASE_DIR, 'media')
MEDIA_URL = '/media/'

最后，我的urls.py的代码如下：

urlpatterns = [
    path('admin/', admin.site.urls),
    path(r'', include('Elections.urls')),
    path('admin_tools/', include('admin_tools.urls')),
]


urlpatterns += staticfiles_urlpatterns()
urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
urlpatterns += static(settings.STATIC_URL, document_root=settings.STATIC_ROOT)

if settings.DEBUG:
    import debug_toolbar
    urlpatterns = [
        path('__debug__/', include(debug_toolbar.urls)),

        # For django versions before 2.0:
        # url(r'^__debug__/', include(debug_toolbar.urls)),

    ] + urlpatterns

我尝试将{{p.sindid.photo}}替换为{{p.sindid.photo.url}}，但这会引发错误，例如“'bytes'对象没有属性'url'”

那我在做什么错了？

Answer 1

此外，下面是我的模型EklSumpsifodeltiasindVw，如果有帮助的人：

class EklSumpsifodeltiasindVw(models.Model):
    id = models.IntegerField(primary_key=True)
    eklid = models.ForeignKey(Eklogestbl, models.DO_NOTHING, db_column='eklID', db_index=True)  # Field name made lowercase.
    sindid = models.ForeignKey(Sindiasmoi, models.DO_NOTHING, db_column='sindID', db_index=True)  # Field name made lowercase.
    sindiasmos = models.CharField(max_length=100)
    shortdescr = models.CharField(db_column='shortDescr', max_length=50)  # Field name made lowercase.
    photo=models.ImageField(db_column='photo',null=True)
    sumvotes = models.DecimalField(db_column='sumVotes', max_digits=32, decimal_places=0, blank=True, null=True)  # Field name made lowercase.
    sinola = models.DecimalField(max_digits=32, decimal_places=0, blank=True, null=True)
    katametrimena = models.BigIntegerField(blank=True, null=True)
    plithoskentrwn = models.BigIntegerField(db_column='plithosKentrwn')  # Field name made lowercase.
    posostosindiasmou = models.DecimalField(db_column='posostoSindiasmou', max_digits=38, decimal_places=2, blank=True, null=True)  # Field name made lowercase.
    posostokatametrimenwnkentrwn = models.DecimalField(db_column='posostoKatametrimenwnKentrwn', max_digits=26, decimal_places=2, blank=True, null=True)  # Field name made lowercase.
    sumvotesb = models.DecimalField(db_column='sumVotesB', max_digits=32, decimal_places=0, blank=True, null=True)  # Field name made lowercase.
    sinolab = models.DecimalField(db_column='sinolaB', max_digits=32, decimal_places=0, blank=True, null=True)  # Field name made lowercase.
    posostosindiasmoub = models.DecimalField(db_column='posostoSindiasmouB', max_digits=38, decimal_places=2, blank=True, null=True)  # Field name made lowercase.
    katametrimenab = models.BigIntegerField(db_column='katametrimenaB', blank=True, null=True)  # Field name made lowercase.
    posostokatametrimenwnkentrwnb = models.DecimalField(db_column='posostoKatametrimenwnKentrwnB', max_digits=26, decimal_places=2, blank=True, null=True)  # Field name made lowercase.
    sumvotesk = models.DecimalField(db_column='sumVotesK', max_digits=32, decimal_places=0, blank=True,
                                    null=True)  # Field name made lowercase.
    sinolak = models.DecimalField(db_column='sinolaK', max_digits=32, decimal_places=0, blank=True,
                                  null=True)  # Field name made lowercase.
    posostosindiasmouk = models.DecimalField(db_column='posostoSindiasmouK', max_digits=38, decimal_places=2,
                                             blank=True, null=True)  # Field name made lowercase.
    katametrimenak = models.BigIntegerField(db_column='katametrimenaK', blank=True,
                                            null=True)  # Field name made lowercase.
    posostokatametrimenwnkentrwnk = models.DecimalField(db_column='posostoKatametrimenwnKentrwnK', max_digits=26,
                                                        decimal_places=2, blank=True,
                                                        null=True)  # Field name made lowercase.

这是一个mysql数据库视图。

此外，我在浏览器中显示的有关图像的HTML代码是：

<img src="b&#39;DSC00176.JPG&#39;" alt="image"/>


                <img src="b&#39;sindiasmoi/DSC00239_7GGlF7a.JPG&#39;" alt="image"/>


                <img src="b&#39;DSC00165.JPG&#39;" alt="image"/>


                <img src="b&#39;wwf_earth_hour_2018.jpg&#39;" alt="image"/>


                <img src="b&#39;sindiasmoi/DSC00240.JPG&#39;" alt="image"/>


                <img src="b&#39;sindiasmoi/DSLSPEED07102017_cfQWRL6.PNG&#39;" alt="image"/>

我认为路径有些问题。

Answer 2

好，问题解决了！

问题是这一行： photo = models.ImageField（db_column ='photo'，null = True）

我不应该包含“ db_column ='photo'”。当我删除此参数时，一切正常。

Django-图片未显示

2 个答案: