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<p>我有一个库存系统。当我点击一种药物时,它会显示这种特定药物的信息。此页面为medicine_details.html。当我打开时,我得到了所有正确的信息,但我看不到图像。在inspect中打开页面时,出现错误:</p>
<pre><code><img src=(unknown) alt="img">
</code></pre>
<p>我怎样才能修好它</p>
<p><strong>视图.py</strong></p>
<pre><code>def medicine_detail(request, id):
medicine = get_object_or_404(Medicine, id=id)
context = {
'medicine': medicine,
}
return render(request, 'medicine_details.html', context)
</code></pre>
<p><strong>型号.py</strong></p>
<pre><code>class Medicine(models.Model):
medicine_name = models.CharField(max_length=100)
medicine_info = RichTextField(verbose_name="notes")
medicine_code = models.CharField(max_length=100)
medicine_qr = models.CharField(max_length=100)
medicine_price = models.IntegerField()
medicine_stock = models.IntegerField()
medicine_image = models.ImageField(upload_to='images', null=True, blank=True)
slug = models.SlugField(max_length=100, unique=True, editable=False)
def get_image(self):
if self.medicine_image and hasattr(self.medicine_image, 'url'):
return self.medicine_image.url
else:
return
def __str__(self):
return self.medicine_name
class Meta:
ordering = ['medicine_name']
def get_create_url(self):
return reverse('medicines:medicine_create', kwargs={'slug': self.slug})
def get_unique_slug(self):
slug = slugify(self.slug.replace('ı', 'i'))
unique_slug = slug
counter = 1
while Medicine.objects.filter(slug=unique_slug).exists():
unique_slug = '{}-{}'.format(slug, counter)
counter += 1
return unique_slug
def get_absolute_url(self):
return reverse('medicines:medicine_create', kwargs={'slug': self.slug})
def save(self, *args, **kwargs):
self.slug = self.get_unique_slug()
return super(Medicine, self).save(*args, **kwargs)
</code></pre>
<p><strong>medicine\u details.html</strong></p>
<pre><code><div class="panel panel-primary">
<div class="panel-heading text-center"><h3>{{medicine.medicine_name}} </h3></div>
<div class="panel-body">
<h4><p class="text-success">Medicine Name: <small>{{medicine.medicine_name}}</small></h4>
<h4><p class="text-success">Details: <small>{{medicine.medicine_info}}</small></h4>
<h4><p class="text-success">Barcode: <small>{{medicine.medicine_code}}</small></h4>
<h4><p class="text-success">QR: <small>{{medicine.medicine_qr}}</small></h4>
<h4><p class="text-success">Price: <small>{{medicine.medicine_price}} TL</small></h4>
<h4><p class="text-success"> <small></small></h4>
<img src="{{ medicine.medicine_image.url }}" alt="img">
</code></pre>
<p><strong>设置.py</strong></p>
<p></p>
<pre><code>MEDIA_ROOT = os.path.join(BASE_DIR, 'media')
MEDIA_URL = '/media/'
</code></pre>
<p><strong>url.py</strong>
... </p>
<pre><code>url(r'^medicines/(?P<id>\d+)/$', medicine_detail, name="detail"),
]
urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
</code></pre>
<p>我使用MySQL进行数据库管理</p>