How to pass context to a different view function?(Django)-CodePudding

My models.py:

class fields(models.Model):
      name = models.CharField(max_length=18)
      link = models.TextField()

The link contains the hyperlink of the related name.

My views.py:

def index(request):
    listing = fields.objects.all()
    context ={'listing':'listing'}
    return render(request,'index.html',context)

urls.py

urlpatterns = [
   
    path('admin/', admin.site.urls),
    path('',index,name="index"),
]

template:

 {% for i in listing %}
    <tr>
    <td data-label="name">{{ i.name }}</td>
    <td data-label="Quote"><button><a href ="{{ i.link}} " target="_blank">{{ i.link }}</a></button></td>
    <tr>
 {% endfor %}

This redirects to the hyperlink that is displayed in the template but I want to do some automation after it redirects into this link.

Now, I want to pass the context of this function which only includes the link to the other view function so that another view function will be:

def bypass_link(request):
    # get the link from above function
    # execute some selenium scripts in the link

The simple template to illustrate this will be:

{% for i in listing %}
<tr>
<td data-label="name">{{ i.name }}</td>
<td data-label="Quote"><button><a href ="{ % url 'bypass_link' %} " target="_blank">{{ i.link }}</a></button></td>
<tr>
{% endfor %}

CodePudding user response：

You can pass the id of the object into the url by altering the following:

template

<td data-label="Quote">
    <a href="{% url 'bypass_link' i.id %}" target="_blank">{{ i.link }}</a>
</td>

urls.py

from django.conf.urls import url 

url(r'^bypass_link/(?P<pk>\d )/$', views.bypass_link, name="bypass_link"),

Then in your function you need to find the same model instance and then extract the link.

def bypass_link(request, pk=None):
    instance = fields.objects.get(pk=pk)
    print(instance.link) # now you have your link

Now you have access to the link via instance.link

CodePudding user response：

You can pass variable to different views in Django using session

My example is using Django 3.2, be sure that sessions requirement are set in settings.py. But by the default config, the following example should work.

def index(request):
    listing = fields.objects.all()
    # The session object must be json serializable, pay attention
    listing_list = [[list.name, list.i] for list in listing]
    # set the session variable
    request.session['listing_list'] = listing_list
    context ={'listing':listing}
    return render(request,'index.html',context)

def bypass_link(request):
    # get the link from above function
    # execute some selenium scripts in the link

   # Got the session variable
   listing_list = request.session.get('listing_list')
   # Do what you want with it here