You can use `forloop.parentloop` to get to the outer `forloop`, so in your case `{{forloop.parentloop.counter}}`.

you can also use [**with**][1]

Caches a complex variable under a simpler name. This is useful when accessing an “expensive” method (e.g., one that hits the database) multiple times.


    {% for outerItem in outerItems %}
      {% with forloop.counter as outer_counter %}
        {% for item in items%}
            &lt;div&gt;{{ outer_counter }}.&amp;nbsp;{{ item }}&lt;/div&gt;
        {% endfor %}
      {% endwith %}
    {% endfor %}

if using high version of Django
you could use

    {% with outer_counter=forloop.counter %}

Note: With doesn&#39;t allow spaces before or after `=`

I&#39;ve checked, Django 1.4.x - Django 1.9.x support the two methods.

this is more clear when have many for loops


  [1]: https://docs.djangoproject.com/en/dev/ref/templates/builtins/#with

In some cases the `forloop.parentloop` is not enough. 

Check out [django-templateaddons3][1] and its [{% counter %}][2] tag for a full-fledged solution.


  [1]: https://pypi.org/project/django-templateaddons3/
  [2]: https://django-templateaddons3.readthedocs.io/en/latest/template_tags/counter.html

Is there any difference between calling `len([1,2,3])` or `[1,2,3].__len__()`?

If there is no visible difference, what is done differently behind the scenes?


Difference between len() and .__len__()?

I am new to MySQL. I would like to copy the content of one table to another table within the same database. Basically, I would like to insert to a table from another table. Is there easy way of doing this?



In MySQL, how to copy the content of one table to another table within the same database?

Is it possible to access the forloop.counter for the outermost for loop in the following template in Django:

    {% for outerItem in outerItems %}
        {% for item in items%}
	        &lt;div&gt;{{ forloop.counter }}.&amp;nbsp;{{ item }}&lt;/div&gt;
	    {% endfor %}
    {% endfor %}

forloop.counter returns the innermost for loop&#39;s counter in the above example

How to access outermost forloop.counter with nested for loops in Django templates?

Is it possible to access the forloop.counter for the outermost for loop in the following template in Django:
<pre><code class="hljs language-php-template">{% for outerItem in outerItems %}
 {% for item in items%}
 &#x3C;div>{{ forloop.counter }}.&#x26;nbsp;{{ item }}&#x3C;/div>
 {% endfor %}
{% endfor %}
</code></pre>
forloop.counter returns the innermost for loop's counter in the above example

what I&#39;m trying to do is this:

- get the 30 Authors with highest score ( `Author.objects.order_by(&#39;-score&#39;)[:30]` )

- order the authors by `last_name`

____

Any suggestions?

Good ways to sort a queryset? - Django

I want to do the below list iteration in django templates:

    foo = [&#39;foo&#39;, &#39;bar&#39;];
    moo = [&#39;moo&#39;, &#39;loo&#39;];
    
    for (a, b) in zip(foo, moo):
        print a, b

django code:

    {%for a, b in zip(foo, moo)%}
      {{a}}
      {{b}}
    {%endfor%}

I get the below error when I try this:

    File &quot;/base/python_lib/versions/third_party/django-0.96/django/template/defaulttags.py&quot;, line 538, in do_for
        raise TemplateSyntaxError, &quot;&#39;for&#39; statements should have either four or five words: %s&quot; % token.contents

How do I accomplish this?




Iterating through two lists in Django templates

Hi I have an array of checkboxes e.g.

    &lt;input type=&quot;checkbox&quot; name=&quot;checks[]&quot; value=&quot;1&quot; /&gt;
    &lt;input type=&quot;checkbox&quot; name=&quot;checks[]&quot; value=&quot;2&quot; /&gt;
    &lt;input type=&quot;checkbox&quot; name=&quot;checks[]&quot; value=&quot;3&quot; /&gt;
    &lt;input type=&quot;checkbox&quot; name=&quot;checks[]&quot; value=&quot;4&quot; /&gt;

How do I access these in the view.py if more than one is selected?

I have tried 

    request.POST[&#39;checks&#39;]

but that only gives me the last value.  What I want is all the ones that have been selected in a list e.g. 1,3,4

Thanks

How do I get the values of all selected checkboxes in a Django request.POST?

I&#39;m trying to convert a server side Ajax response script into a Django HttpResponse, but apparently it&#39;s not working.

This is the server-side script:

    /* RECEIVE VALUE */
    $validateValue=$_POST[&#39;validateValue&#39;];
    $validateId=$_POST[&#39;validateId&#39;];
    $validateError=$_POST[&#39;validateError&#39;];

    /* RETURN VALUE */
    $arrayToJs = array();
    $arrayToJs[0] = $validateId;
    $arrayToJs[1] = $validateError;

    if($validateValue ==&quot;Testuser&quot;){  // Validate??
        $arrayToJs[2] = &quot;true&quot;;       // RETURN TRUE
        echo &#39;{&quot;jsonValidateReturn&quot;:&#39;.json_encode($arrayToJs).&#39;}&#39;;  // RETURN ARRAY WITH success
    }
    else{
        for($x=0;$x&lt;1000000;$x++){
            if($x == 990000){
                $arrayToJs[2] = &quot;false&quot;;
                echo &#39;{&quot;jsonValidateReturn&quot;:&#39;.json_encode($arrayToJs).&#39;}&#39;;   // RETURNS ARRAY WITH ERROR.
            }
        }
    }

And this is the converted code

    def validate_user(request):
        if request.method == &#39;POST&#39;:
            vld_value = request.POST.get(&#39;validateValue&#39;)
            vld_id = request.POST.get(&#39;validateId&#39;)
            vld_error = request.POST.get(&#39;validateError&#39;)

            array_to_js = [vld_id, vld_error, False]

            if vld_value == &quot;TestUser&quot;:
                array_to_js[2] = True
                x = simplejson.dumps(array_to_js)
                return HttpResponse(x)
            else:
                array_to_js[2] = False
                x = simplejson.dumps(array_to_js)
                error = &#39;Error&#39;
                return render_to_response(&#39;index.html&#39;,{&#39;error&#39;:error},context_instance=RequestContext(request))
        return render_to_response(&#39;index.html&#39;,context_instance=RequestContext(request))

I&#39;m using simplejson to encode the Python list (so it will return a JSON array). I couldn&#39;t figure out the problem yet. But I think that I did something wrong about the &#39;echo&#39;.


Creating a JSON response using Django and Python

At the root page of the admin site where registered models appear, I want to hide several models that are registered to the Django admin.

If I directly unregister those, I am not able to add new records as the add new symbol &quot;+&quot; dissapears.


How can this be done ?

Django admin, hide a model

I&#39;m passing to Django&#39;s template a function, which returns some records. 
I want to call this function and iterate over its result. 

    {% for item in my_func(10) %} 

That doesn&#39;t work. 
I&#39;ve tried to set the function&#39;s return value to a variable and iterate over the variable, but there seems to be no way to set a variable in a Django template. 

Is there any normal way to do it? 

How to call function that takes an argument in a Django template?

I&#39;ve got a field in my model of type [`FileField`][1]. This gives me an object of type [`File`][2], which has the following method:

&gt; `File.name`: The name of the file including the relative path from
&gt; `MEDIA_ROOT`.

What I want is something like &quot;`.filename`&quot; that will only give me the filename and not the path as well, something like:

&lt;!-- language: lang-html --&gt;

    {% for download in downloads %}
      &lt;div class=&quot;download&quot;&gt;
        &lt;div class=&quot;title&quot;&gt;{{download.file.filename}}&lt;/div&gt;
      &lt;/div&gt;
    {% endfor %}

Which would give something like `myfile.jpg`


  [1]: https://docs.djangoproject.com/en/2.0/ref/models/fields/#filefield
  [2]: https://docs.djangoproject.com/en/stable/ref/files/file/

Django FileField: How to return filename only (in template)

I am trying to print a list of all the Conferences and for each conference, print its 3 Speakers.

In my template I have:

    {% if conferences %}
            &lt;ul&gt;
            {% for conference in conferences %}
                    &lt;li&gt;{{ conference.date }}&lt;/li&gt;
                    {% for speakers in conference.speakers %}
                            &lt;li&gt;{{ conference.speakers }}&lt;/li&gt;
                    {% endfor %}
            {% endfor %}
            &lt;/ul&gt;
    {% else %}
    &lt;p&gt;No Conferences&lt;/p&gt;
    {% endif %}

in my views.py file I have:

    from django.shortcuts import render_to_response
    from youthconf.conference.models import Conference
    
    def manageconf(request):
            conferences = Conference.objects.all().order_by(&#39;-date&#39;)[:5]
            return render_to_response(&#39;conference/manageconf.html&#39;, {&#39;conferences&#39;: conferences})

there is a model named **conference**. which has a class named **Conferences** with a *ManyToManyField* named **speakers**

I get the error:

    Caught an exception while rendering: &#39;ManyRelatedManager&#39; object is not iterable

with this line: `{% for speakers in conference.speakers %}`

listing objects from ManyToManyField

I was wondering how to get the current URL within a template.

Say my current URL is:

&lt;!-- language: lang-none --&gt;


    .../user/profile/
	
How do I return this to the template?


Content Type	Original Author	Original Content on Stackoverflow
Question	jamesaharvey	View Question on Stackoverflow
Solution 1 - Django	Tom	View Answer on Stackoverflow
Solution 2 - Django	WeizhongTu	View Answer on Stackoverflow
Solution 3 - Django	AndyTheEntity	View Answer on Stackoverflow

How to access outermost forloop.counter with nested for loops in Django templates?

Django Problem Overview

Django Solutions

Solution 1 - Django

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In MySQL, how to copy the content of one table to another table within the same database?

Difference between len() and .len()?

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