Have you looked at permissions ?
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> On 13-Feb-2020, at 6:06 PM, Phil Kauffman <kauffman.p...@gmail.com> wrote:
>
> Bill,
>
> Thank You for taking the time to respond. I will definitely need to read up
> on the options you presented. My first inclination was to get familiar with
> the first option as it seems easiest. However, now that you mention VueJS I
> will look into that as well.
>
>> On Wednesday, February 12, 2020 at 6:46:42 PM UTC-5, ke1g wrote:
>> What happens in the browser stays in the browser, unless you do something
>> about it.
>>
>> Forgive me if I'm being too basic below:
>>
>> There are three approaches to click and see a filtering change, with trade
>> offs in performance, complexity, and the impact if the user's browser is on
>> a humble box.
>> When the user clicks, it's on a link, and you reload the page with the
>> filter applied. No JavaScript required. Pretty slow. more network load,
>> more browser load, and more load on the server. (I'm not going into the old
>> approach of having an iframe and the link reloads the iframe because iframes
>> are tricky, and if you're showing a big table, it's most of the page
>> anyway.) Do be sure that your images, CSS files, and JavaScript files are
>> set to encourage the browser and/or the network to cache them, but the HTML
>> will load every time, and the URL will likely show the filter settings
>> (though you can do things with cookies and/or session store, but you will
>> surprise your users someday.
>> Load all the data in the first place, and use JavaScript in combination with
>> CSS to hide the stuff that's filtered out. If you go this way, do arrange
>> to use CSS controlled by a class on a single containing element to control
>> visibility, because doing big DOM modifications in JavaScript performs
>> poorly. This is the snappiest approach, but you have to have loaded
>> everything, at cost of network and server load, even if you expect the user
>> to filter later, and at the cost of RAM in the browser. If the data's not
>> that big, this is fine. But if it's the catalog of a hardware chain or
>> something else huge, you probably be doing it in pages. Sometimes it's
>> natural. For example, I once did and event calendar for a school system. I
>> loaded a month at a time, and filtering within the month was peppy, but to
>> go to a different month required a reload, and you couldn't show stuff from
>> multiple months at one time.
>> Use an AJAX request to replace part of the DOM with filtered data. (The
>> iframe hack is very much like this.) If the data is most of your page, this
>> isn't much more light weight than option 1, but the user doesn't see the
>> page reload, which seems to count for style points.
>> There are JavaScript "frameworks" (e.g. VueJS) that will help you with 2 and
>> especially 3, but you have to learn how to use the framework, and how to
>> connect it to Django. Those are useful things to learn, but they're not
>> overnight reads, and can have performance pitfalls.
>>
>> Good luck, Bill
>>
>>> On Wed, Feb 12, 2020 at 3:17 PM Phil Kauffman <kauffm...@gmail.com> wrote:
>>> Hello, I am struggling with trying to filter child objects based on parent
>>> object selection on index.html (sites.html in example). On my sites.html, I
>>> list the office sites and a button to click for each, upon clicking I want
>>> to load the profile list for users only at that site, presently it's
>>> loading all profiles for all sites, which I assume is because the profiles
>>> are loaded statically no matter which button is clicked on sites.html.
>>>
>>> I'm thinking I need a JS onclick event?
>>>
>>> models.py:
>>> class Site(models.Model):
>>>
>>> name = models.CharField(max_length=50)
>>> date = models.DateField()
>>> manager = models.CharField(max_length=50)
>>>
>>> def save(self, *args, **kwargs):
>>> super(Site, self).save(*args, **kwargs)
>>>
>>> class Profile(models.Model):
>>> Days = '1st'
>>> Mids = '2nd'
>>> Nights = '3rd'
>>> Work_Schedule_Choices = [
>>> (Days, 'Day Shift'),
>>> (Mids, 'Mid Shift'),
>>> (Nights, 'Night Shift'),
>>> ]
>>> sitename = models.ForeignKey(Site, on_delete=models.CASCADE)
>>> title = models.CharField(max_length=100)
>>> schedule =
>>> models.CharField(max_length=3,choices=Work_Schedule_Choices,default=Days)
>>> totalusers = models.PositiveSmallIntegerField(default=1,
>>> validators=[MinValueValidator(1), MaxValueValidator(50)])
>>>
>>>
>>>
>>> views.py:
>>> def sites(request):
>>> sitelist = Site.objects.all()
>>> return render (request, 'App/sites.html', {'sitelist' : sitelist})
>>>
>>> def sitedetail(request):
>>> site = Site.objects.filter()
>>> if request.method == 'GET':
>>> return render(request, 'App/site-detail.html', {'site': site,
>>> 'profile_set': Profile.objects.all()})
>>>
>>>
>>> sites.html (index)
>>> {% extends 'App\base.html' %}
>>> {% load crispy_forms_tags %}
>>> {% block title %}Site Home{% endblock %}
>>> {% block content %}
>>> {% for Site in sitelist %}
>>> <div <div class="container">
>>> <div class="row justify-content-center">
>>> <h5>{{ Site.name }}</h5>
>>> <a href="{% url 'site-detail' %}" class="btn">View</a>
>>> </div>
>>> </div>
>>> {% empty %}
>>> <div class="noproject-wrapper center">
>>> <h3 class="grey-text">Sorry, you haven't created any sites yet.</h3>
>>> <a href="{% url 'site-create' %}" class="btn-large grey">
>>> <i class="material-icons white-text left">Add Site</i>
>>> <span class="bold">Add Site</span>
>>> </a>
>>> </div>
>>> {% endfor %}
>>> </div>
>>> {% endblock %}
>>>
>>>
>>> site-detail.html
>>> {% extends 'App\base.html' %}
>>> {% load crispy_forms_tags %}
>>> {% block title %}Site Detail{% endblock %}
>>> {% block content %}
>>> <h1>This web form sucks</h1>
>>> <ul>
>>> {% for profile in profile_set %}
>>> <li>{{ profile.title }}</li>
>>> {% endfor %}
>>> </ul>
>>> {% endblock %}
>>>
>>>
>>>
>>>
>>>
>>>
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