Access data associated to a primary key

[tango ward]

Hi guys, I just want to know how to access and load the data associated to a primary key in a template.

models.py

class Team_Region(models.Model):
    name = models.CharField(max_length=50)

    # String representation
    def __str__(self):
        return self.name



class Team_Name(models.Model):
    t_name = models.CharField(max_length=100)
    logo = models.ImageField(upload_to='team_logos', blank=True)
    region_member = models.ForeignKey(Team_Region, related_name='regions')


    def __str__(self):
        return self.t_name + ' - ' + str(self.region_member)

views.py

class TeamRegionListView(ListView):
    context_object_name = 'regions_listview'
    model = Team_Region
    template_name = 'dota_teams/team_regions_list.html'

team_regions_list.html

{% block body_block %}
   
    <div class="row">
        {% for region in regions_listview %}
            <div class="col-sm-6 col-lg-4">
                <a href="{{ region.id }}" class="thumbnail">{{ region.name }}</a>
            </div>
        {% endfor %}
    </div>

{% endblock %}

What I want to achieve is to load the teams' logos and names when the region name link is clicked in the team_regions.html. The teams that will only be displayed in the template are the teams part of the specific ID from Team_Region. Say, region is NA, I want all teams under NA to be displayed in the template.

Not sure how to do this using ListView.

Any suggestions?

TIA

[Gourav Chawla]

You can create another url, view, template to do that.

Just create a url like : team/id

For the above url create a view, say, teams_under_region which accepts the 'id'. Based on that id you can then query your database for teams where region_member=id. This is just the approach you would follow for functional view. But for CBV you have DetailView that takes care of this. Hope this helps.

[tango ward]

Hi Gourav, thanks for the input.

Just a question, Can I iterate through the Team_Region to get the teams listed under the specific id? or shall I do it in Team_Member class? This is for the DetailView.

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[tango ward]

Holy .. it works!

I have to access the Team_Name class using the 'related_name=regions' and from that, I was able to access the logo attributes of Team_Name.

Here's what I did.

{% block body_block %}
   
    <div class="row">

        {% for region in regions_detail.regions.all %}
        <div class="col-sm-12 col-lg-4">
            <a href="" class="thumbnail">
                <img src="{{ region.logo.url }}" alt="Image not found">

            </a>
        </div>
        {% endfor %}
    </div>

{% endblock %}

Thanks for your help Gourav. By the way, do you know when should I use CBV and function view?

On Mon, Oct 2, 2017 at 9:31 PM, Gourav Chawla <gauravchawl...@gmail.com> wrote:

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[Gourav Chawla]

Glad, you worked it out. You can use them whenever you want. Function based views require you to write more code but give you more clarity on what's happening. On the other hand CBV help you keep the codebase cleaner.

At the end of the day, it's you who has to decide what to use.

[tango ward]

thanks Gourav. I really appreciate your inputs.

On Tue, Oct 3, 2017 at 9:16 PM, Gourav Chawla <gauravchawl...@gmail.com> wrote:

Glad, you worked it out. You can use them whenever you want. Function based views require you to write more code but give you more clarity on what's happening. On the other hand CBV help you keep the codebase cleaner.

At the end of the day, it's you who has to decide what to use.

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