Django template get selected value

Django template get selected value

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For example: if first option Regular is selected then how can i get the value "1" and its text value "Regular" in views. POST under the key drop1. Another solution also without using Django forms I can think of is to use a Python dict or list to hold all your options in your view:. Of course, if you simply use a django form for this then all the underlying handling is done for you and you can just skip this part of the code. Learn more. How do I get the text value of a selected option in django views.

Asked 1 year ago. Active 1 year ago. Viewed times. Active Oldest Votes. The value 1 should be in request. This should help you see the selected value in your view: print request. Ralf Ralf Sign up or log in Sign up using Google.

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Last modified 6 months ago. I'm facing issue in getting the selected value from MultipleChoiceField. My multiple choice fields as many runnable scripts, upon selecting one or more from that list, I would like to get and process those selected values. I tried with form. I tried to look out for solution in other available resources but none of them are helping to fix my issue. With no choice I'm here to raise a new ticket and requesting any possible solution. Closing this ticket as I'm able to get the value.

I was trying to get the value from invalid view. Fixed my code. Django is a registered trademark of the Django Software Foundation. Django The web framework for perfectionists with deadlines.

Opened 6 months ago Closed 6 months ago Last modified 6 months ago.

Setting the selected value on a Django forms.ChoiceField

Description I'm facing issue in getting the selected value from MultipleChoiceField. My multiple choice fields as many runnable scripts, upon selecting one or more from that list, I would like to get and process those selected values In form, I defined MultipleChoiceField and in the view, I'm trying to get the selected value. Oldest first Newest first Threaded.

Show comments Show property changes. Please don't use Trac as a support channel. Note: See TracTickets for help on using tickets.In Chapter 5, we created a view to show a simple title and calendar in the browser.

This is obviously a long way from a fully functioning modern website—we are missing a site template.

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Site templates, at their most basic, are HTML files that are displayed by your browser. All websites—from simple, static websites to interactive web applications that work on multiple devices—are built on HTML. Modern interactive websites are more complex. For example, a modern website will add Cascading Style Sheets CSSsemantic markup and JavaScript in the front end to create the user experience, with a backend like Django supplying the data to show in the template.

However, the fundamentals stay the same. These philosophies remain core to Django today. They are:. The majority of dynamic web sites use some sort of common site-wide design—a common header, footer, navigation bar, etc. The Django template system should make it easy to store those elements in a single place, eliminating duplicate code. This is the philosophy behind template inheritance.

It should be equally good at generating other text-based formats, or just plain text. Using an XML engine to parse templates introduces a whole new world of human error in editing templates—and incurs an unacceptable level of overhead in template processing.

If a template includes whitespace, the system should treat the whitespace as it treats text—just display it. The goal is not to invent a programming language.

The goal is to offer just enough programming-esque functionality, such as branching and looping, that is essential for making presentation-related decisions. The Django template system recognizes that templates are most often written by designers, not programmers, and therefore should not assume Python knowledge. The template system, out of the box, should forbid the inclusion of malicious code—such as commands that delete database records. The template system should recognize that advanced template authors may want to extend its technology.

This is the philosophy behind custom template tags and filters. Having worked with many different templating systems myself over the years, I whole-heartedly endorse this approach—the DTL and the way it has been designed is one of the major pluses of the Django framework. When the pressure is on to Get Stuff Done, and you have both designers and programmers trying to communicate and get all the of the last minute tasks done, Django just gets out of the way and lets each team concentrate on what they are good at.

django template get selected value

The fact that Python alone has dozens of open source template-language implementations supports this point. Each was likely created because its developer deemed all existing template languages inadequate.

With all this in mind, Django is flexible—it does not require you to use the DTL. All versions of Django since Django 1. A Django template is a text file. To turn a plain text file into a Django template, the template designer adds template tagsvariables and filters.

A template tag does something. Some examples functions performed by template tags are:. A template variable is something. Template variables are passed to the template at run time in the context.

django template get selected value

For example:. Filters modify a variable for display. A filter is applied to a variable using the pipe character.Creating forms in Django, is really similar to creating a model.

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Here again, we just need to inherit from Django class and the class attributes will be the form fields. Let's add a forms. We will create a login form.

As seen above, the field type can take "widget" argument for html rendering; in our case, we want the password to be hidden, not displayed. In Django, the request object passed as parameter to your view has an attribute called "method" where the type of the request is set, and all data passed via POST can be accessed via the request.

POST dictionary. The view will display the result of the login form posted through the loggedin. To test it, we will first need the login form template.

Let's call it login. The template will display a login form and post the result to our login view above. Once we have the login template, we need the loggedin. On the form post, the form is valid. In case your username is polo, and you forgot the password.

We only used Django self-form validation engine, in our case just making sure the fields are required. Raising a forms. ValidationError is important. Django - Form Processing Advertisements.

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Previous Page. Next Page. Previous Page Print Page.This tutorial begins where Tutorial 3 left off. Remember, in Tutorial 3we created a URLconf for the polls application that includes this line:. We also created a dummy implementation of the vote function. POST is a dictionary-like object that lets you access submitted data by key name.

In this case, request. POST values are always strings. Note that Django also provides request. After incrementing the choice count, the code returns an HttpResponseRedirect rather than a normal HttpResponse.

HttpResponseRedirect takes a single argument: the URL to which the user will be redirected see the following point for how we construct the URL in this case. We are using the reverse function in the HttpResponseRedirect constructor in this example.

This function helps avoid having to hardcode a URL in the view function. It is given the name of the view that we want to pass control to and the variable portion of the URL pattern that points to that view.

In this case, using the URLconf we set up in Tutorial 3this reverse call will return a string like. This redirected URL will then call the 'results' view to display the final page. As mentioned in Tutorial 3request is an HttpRequest object. For more on HttpRequest objects, see the request and response documentation. After somebody votes in a question, the vote view redirects to the results page for the question.

This is almost exactly the same as the detail view from Tutorial 3. The only difference is the template name.

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You should see a results page that gets updated each time you vote. If you submit the form without having chosen a choice, you should see the error message. The code for our vote view does have a small problem. Then, for both users the new value of 43 is computed and saved, but 44 would be the expected value. This is called a race condition. If you are interested, you can read Avoiding race conditions using F to learn how you can solve this issue.

django template get selected value

The detail from Tutorial 3 and results views are very simple — and, as mentioned above, redundant.Posted by: admin November 29, Leave a comment. I am on django 1. Could anyone give me a definitive answer if it is possible? If you have already called super. If you study form.

Having a value of None in that dict will override the field. Note: the initial values has to be a list and the choices has to be 2-tuples, in my example above i have a list of 2-tuples. Hope this helps.

I ran into this problem as well, and figured out that the problem is in the browser.

django template get selected value

When you refresh the browser is re-populating the form with the same values as before, ignoring the checked field. That will re-load the form from scratch. Dave — any luck finding a solution to the browser problem? Is there a way to force a refresh? Tags: djangoformsselect. December 31, Django Leave a comment. Questions: I have models with many to many relationships like this: class Contact models. TextField class Mail models. Questions: I am writing a Django application that has a model for People, and I have hit a snag.

Your email address will not be published. Save my name, email, and website in this browser for the next time I comment. Add menu. Setting the selected value on a Django forms. ChoiceField Posted by: admin November 29, Leave a comment.

You can also do the following. Try this it works for me, I have added this in models. Logical or of Django many to many queries returns duplicate results December 31, Django Leave a comment Questions: I have models with many to many relationships like this: class Contact models. Django model field choices — wouldn't a dict be better?Sometimes could be a good idea to have the user provide all the needed information without living the "index" or "main" page of our web application.

In other terms, sometimes could be a good idea to have some forms appear on a layer, a modal, a popup over the document. It's quite easy to render a form in a modal window, just make an ajax request and display the result inside your modal. But things can be a bit trickier when we have to process the form.

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In particular what happens if any error occurs? Normally django would redirect the user to the form page displaying messages about the errors occurred. But if the form doesn't have its own page its own complete templateand lives in a modal, how can we manage such situation? Here we'll see a way to manage all such things using django, bootstrap and its modals, jquery and this plugin. We have a list of items with edit buttons.

When clicking the edit button of an item, a form is rendered in a modal, providing an interface to update the model. We use the django ListView and the UpdateView classes, the first to manage the items list and the second to manage the item update. The ItemListView class is straightforward. In your urls. In particular the third point is quite important.

One of the greatest problems to face when implementing a modal form with django is that if any error occurs we should return in the form page. But if the form hasn't its own page what can we do? So you should implement the form action in the list view and pass the form processing result in some way to the ajax url which renders the form.

A simpler and more elegant solution is to submit the form through ajax and capture the response. Then if the response is the same form with a list of errors, we update the content of the modal with it, if the response is a succesfull one we just close the modal; easy!

Setting the selected value on a Django forms.ChoiceField

So we're done, if an error occurs, the form with the error messages is displayed inside the modal, without page reloading. We display a graceful message and then after one second we destroy the modal. I've said destroy and not hidebecause if we only hide it then a future click on the edit button will cause the same content to open inside the modal because of how the bootstrap modal works.

For this reason we have to destroy it so that the next time it is called, it is re-created. It is possible to implement modal forms in django using bootstrap modals and the jquery form plugin. The goal is to have the form submitted by ajax, and then load the ajax response inside the same modal.

If an error occurs the form is overwritten with the error messages, otherwise a response is provided which runs a js code which destroys the modal after one second.