No, because the GET parameters are not part of the URL.

Simply add them to the end:

    &lt;a href=&quot;{% url myview %}?office=foobar&quot;&gt;

For Django 1.5+

    &lt;a href=&quot;{% url &#39;myview&#39; %}?office=foobar&quot;&gt;

A way to mix-up current parameters with new one:

    {% url &#39;order_list&#39; %}?office=foobar&amp;{{ request.GET.urlencode }}


Modify your settings to have request variable:

    from django.conf.global_settings import TEMPLATE_CONTEXT_PROCESSORS as TCP
    
    TEMPLATE_CONTEXT_PROCESSORS = TCP + (
        &#39;django.core.context_processors.request&#39;,
    )

**Use `urlencode` if the argument is a variable**

    &lt;a href=&quot;{% url &#39;myview&#39; %}?office={{ some_var | urlencode }}&quot;&gt;

or else special characters like spaces might break your URL.

Documentation: https://docs.djangoproject.com/en/3.0/ref/templates/builtins/#urlencode

First, a silly answer:
  
    {% url my-view-name %}?office=foobar

A serious anwser: No, you can&#39;t. Django&#39;s URL resolver matches only the __path__ part of the URL, thus the ``{% url %}`` tag can only reverse that part of URL.

If your url (and the view) contains variable `office` then you can pass it like this:

    {% url &#39;some-url-name&#39; foobar %}

or like this, if you have more than one parameter:

    {% url &#39;some-url-name&#39; office=&#39;foobar&#39; %}

Documentation: https://docs.djangoproject.com/en/3.1/ref/templates/builtins/#url

Try this:

    {% url &#39;myview&#39; office=foobar %}

It worked for me. It basically does a reverse on that link and applies the given arguments. 

I am working on a rails app with quite a few git branches and many of them include db migrations. We try to be careful but occasionally some piece of code in master asks for a column that got removed/renamed in another branch.

1. **What would be a nice solution to &quot;couple&quot; git branches with DB states?**

2. **What would these &quot;states&quot; actually be?**

   We can&#39;t just duplicate a database if it&#39;s a few GBs in size.
2. **And what should happen with merges?**

3. **Would the solution translate to noSQL databases as well?**

   We currently use MySQL, mongodb and redis

---

EDIT: Looks like I forgot to mention a very important point, I am only interested in the **development environment** but with large databases (a few GBs in size).

How to work with Git branches and Rails migrations

I have a text field that needs to remain only text or decimal. Here is the code that I&#39;m currently using to replace everything except numbers and a decimal point. Issue is, I can&#39;t figure out a regex that will identify everything else

    document.getElementById(target).value = newVal.replace(/\D[^\.]/g, &quot;&quot;);

The \D works fine, but I&#39;ve tried `(?!.), (?!\.), [^.], [^\.]` and so on...

Any suggestions for a regular expression that identifies positively with anything except a number or a decimal?

Thanks for the help

Regex to replace everything except numbers and a decimal point

I&#39;d like to add request parameters to a `{% url %}` tag, like `?office=foobar`.

Is this possible? I can&#39;t find anything on it.

Is it possible to pass query parameters via Django&#39;s {% url %} template tag?

<p>I'd like to add request parameters to a <code>{% url %}</code> tag, like <code>?office=foobar</code>.</p>
<p>Is this possible? I can't find anything on it.</p>


I have looked a lot on google for answers of how to use the &#39;url&#39; tag in templates only to find many responses saying &#39;You just insert it into your template and point it at the view you want the url for&#39;. Well no joy for me :( I have tried every permutation possible and have resorted to posting here as a last resort.

So here it is. My urls.py looks like this:

    from django.conf.urls.defaults import *
    from login.views import *
    from mainapp.views import *
    import settings
    
    # Uncomment the next two lines to enable the admin:
    from django.contrib import admin
    admin.autodiscover()
    
    urlpatterns = patterns(&#39;&#39;,
        # Example:
        # (r&#39;^weclaim/&#39;, include(&#39;weclaim.foo.urls&#39;)),
        (r&#39;^login/&#39;, login_view),
        (r&#39;^logout/&#39;, logout_view),
        (&#39;^$&#39;, main_view),
    
        # Uncomment the admin/doc line below and add &#39;django.contrib.admindocs&#39; 
        # to INSTALLED_APPS to enable admin documentation:
        # (r&#39;^admin/doc/&#39;, include(&#39;django.contrib.admindocs.urls&#39;)),
    
        # Uncomment the next line to enable the admin:
        (r&#39;^admin/&#39;, include(admin.site.urls)),
        #(r&#39;^static/(?P&lt;path&gt;.*)$&#39;, &#39;django.views.static.serve&#39;,{&#39;document_root&#39;: &#39;/home/arthur/Software/django/weclaim/templates/static&#39;}),
        (r&#39;^static/(?P&lt;path&gt;.*)$&#39;, &#39;django.views.static.serve&#39;,{&#39;document_root&#39;: settings.MEDIA_ROOT}),
    )

My &#39;views.py&#39; in my &#39;login&#39; directory looks like:

    from django.shortcuts import render_to_response, redirect
    from django.template import RequestContext
    from django.contrib import auth
    
    def login_view(request):
        if request.method == &#39;POST&#39;:
            uname = request.POST.get(&#39;username&#39;, &#39;&#39;)
            psword = request.POST.get(&#39;password&#39;, &#39;&#39;)
            user = auth.authenticate(username=uname, password=psword)
            # if the user logs in and is active
            if user is not None and user.is_active:
                auth.login(request, user)
                return render_to_response(&#39;main/main.html&#39;, {}, context_instance=RequestContext(request))
                #return redirect(main_view)
            else:
                return render_to_response(&#39;loginpage.html&#39;, {&#39;box_width&#39;: &#39;402&#39;, &#39;login_failed&#39;: &#39;1&#39;,}, context_instance=RequestContext(request))
        else:
            return render_to_response(&#39;loginpage.html&#39;, {&#39;box_width&#39;: &#39;400&#39;,}, context_instance=RequestContext(request))
    
    def logout_view(request):
        auth.logout(request)
        return render_to_response(&#39;loginpage.html&#39;, {&#39;box_width&#39;: &#39;402&#39;, &#39;logged_out&#39;: &#39;1&#39;,}, context_instance=RequestContext(request))

and finally the main.html to which the login_view points looks like:

    &lt;html&gt;
    &lt;body&gt;
    test! &lt;a href=&quot;{% url logout_view %}&quot;&gt;logout&lt;/a&gt;
    &lt;/body&gt;
    &lt;/html&gt;

So why do I get &#39;NoReverseMatch&#39; every time?

*(on a slightly different note I had to use &#39;context_instance=RequestContext(request)&#39; at the end of all my render-to-response&#39;s because otherwise it would not recognise {{ MEDIA_URL }} in my templates and I couldn&#39;t reference any css or js files. I&#39;m not to sure why this is. Doesn&#39;t seem right to me)*

Using {% url ??? %} in django templates

I need to have my Django application allow me to have a default value of NULL set for a certain model field. I&#39;ve looked over the *null*, *blank*, and *default* parameters, but it&#39;s not very clear what combination of the three I need to use to get the desired effect. I&#39;ve tried setting `default=NULL` but it threw an error. If I specify `blank=True, null=True` and no default, will it just default back to NULL come runtime?

Django Model Field Default to Null

I&#39;ve accumulated quite a few migrations using South (0.7) and Django (1.1.2) which are starting to consume quite a bit of time in my unit tests. I would like to reset the baseline and start a fresh set of migrations. I&#39;ve reviewed the &lt;a href=&quot;http://south.aeracode.org/docs/index.html&quot;&gt;South documentation&lt;/a&gt;, done the usual Google/Stackoverflow searching (e.g. &quot;django south (reset OR delete OR remove) migration history&quot;) and haven&#39;t found anything obvious.

One approach I&#39;ve contemplated would involve &quot;starting over&quot; by &quot;removing&quot; South or &quot;clearing&quot; the history manually (e.g. clear the db table, remove migration files from the migrations director) and just re-run,

&gt; ./manage.py schemamigration southtut --initial

So, if anyone has done this before and has some tips/suggestions they would be greatly appreciated.

What&#39;s the recommended approach to resetting migration history using Django South?

I&#39;m trying to find a way to cache the results of a query that won&#39;t change with frequency. For example, categories of products from an e-commerce (cellphones, TV, etc).
I&#39;m thinking of using the template fragment caching, but in this fragment, I will iterate over a list of these categories. This list is avaliable in any part of the site, so it&#39;s in my `base.html` file. Do I have always to send the list of categories when rendering the templates? Or is there a more dynamic way to do this, making the list always available in the template?

Caching query results in django

I tried to use PIL to do some JPEG work in my django app with PIL but I&#39;m getting this IOError.. not sure what to do.

    &quot;&quot;decoder jpeg not available&quot;&quot;

Am I missing the JPEG decoder from my server? If so, how do I fix it?


PIL /JPEG Library: &quot;decoder jpeg not available&quot;

This may be simple, but I looked around and couldn&#39;t find an answer.  What&#39;s the best way to reference a single item in a list from a Django template?

In other words, how do I do the equivalent of `{{ data[0] }}` within the template language?



Reference list item by index within Django template?

&lt;br&gt;I am trying to pass in url parameters to a django template like this...

    response = render_to_string(&#39;persistConTemplate.html&#39;, request.GET)

This the calling line from my views.py file.  persistConTemplate.html is the name of my template and request.GET is the dictionary that contains the url parameters.

In the template I try to use one of the parameters like this...

    {% for item in (numItems) %}

      item {{item}}

    {% endfor %}

numItems is one of the url parameters that I am sending in my request like this...

    http:/someDomain/persistentConTest.html/?numItems=12

When I try the for loop above, I get an output like this....
&gt;image 1 image 2

I am expecting and would like to see the word image printed 12 times...

&gt;image 1 image 2 image 3 image 4 image 5 image 6 image 7 image 8 image 9 image 10 image 11 image 12

Can anyone please tell me what I am going wrong?


Need to convert a string to int in a django template

I use the &#39;messages&#39; interface to pass messages to user like this:

    request.user.message_set.create(message=message)

I would like to include html in my `{{ message }}` variable and render it without escaping the markup in the template.

Rendering a template variable as HTML

Since app engine 1.4.2 was released, I am getting warnings like this in my production logs:

&gt; You are using the default Django
&gt; version (0.96). The default Django
&gt; version will change in an App Engine
&gt; release in the near future. Please
&gt; call use_library() to explicitly
&gt; select a Django version. For more
&gt; information see
&gt; http://code.google.com/appengine/docs/python/tools/libraries.html#Django

This occurs on every handler where I use a Django template - via the following:

    from google.appengine.ext.webapp import template

I&#39;d like to upgrade to 1.2, however the following links don&#39;t seem very clear on exactly how to do this (or whether it works at all):

- http://code.google.com/appengine/docs/python/tools/libraries.html#Django
- http://code.google.com/p/googleappengine/issues/detail?id=1758
- http://code.google.com/p/googleappengine/issues/detail?id=4489
- http://www.mediacrafters.org/post/django11-on-appengine

The common thread is to insert this:

    from google.appengine.dist import use_library
    use_library(&#39;django&#39;, &#39;1.2&#39;)

However, in what file(s) should this be inserted:

1. Just in appengine_config.py?
2. In every .py file which does `from google.appengine.ext.webapp import template`?
3. In every .py file in the project?
4. In 1 and (2 or 3) above, and also add `import appengine_config` to those files?
5. In 3 or 4, and also add wrappers around built-in functions like appstats, remote api, datastore admin, etc?
6. Something else?

Thanks.


Content Type	Original Author	Original Content on Stackoverflow
Question	Brian D	View Question on Stackoverflow
Solution 1 - Django	Daniel Roseman	View Answer on Stackoverflow
Solution 2 - Django	eri	View Answer on Stackoverflow
Solution 3 - Django	Ciro Santilli Путлер Капут 六四事	View Answer on Stackoverflow
Solution 4 - Django	lqc	View Answer on Stackoverflow
Solution 5 - Django	pacifist_inside	View Answer on Stackoverflow
Solution 6 - Django	Edward Codarcea	View Answer on Stackoverflow

Is it possible to pass query parameters via Django's {% url %} template tag?

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Regex to replace everything except numbers and a decimal point

How to work with Git branches and Rails migrations

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