How to use the render_to_response () function in the Django framework

This article mainly introduces how to use the render_to_response () function in the Django framework. pay attention to the use of parameters of this method in the example. if you need a friend, refer to the following common situations, we usually load a template file, use Context to render it, and finally return the processed HttpResponse object to the user. We have optimized the solution by using the get_template () method instead of complicated code to process the template and its path. However, it still takes some time to extract the simplified code. This is a common repetitive labor. Django provides a shortcut for loading a template file at a time, rendering it, and returning it as HttpResponse.

This shortcut is located in the render_to_response () function in the django. shortcuts module. In most cases, you will use the ''\" object unless your boss measures your work based on the number of lines of code.

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The following example uses render_to_response () to rewrite current_datetime.

from django.shortcuts import render_to_responseimport datetimedef current_datetime(request): now = datetime.datetime.now() return render_to_response('current_datetime.html', {'current_date': now})

Big change! Let's take a look at the code changes one by one:

We no longer need to import get_template, Template, Context, and HttpResponse. Instead, we import django. shortcuts. render_to_response. Import datetime continues to be retained.

In the current_datetime function, we still perform now calculation, but Template loading, context creation, template parsing, and HttpResponse creation are all completed in calling render_to_response. Because render_to_response () returns the HttpResponse object, we only need to return this value in the view.

The first parameter of render_to_response () must be the name of the template to be used. If you want to specify the second parameter, it must be the dictionary used when the Context is created for the template. If the second parameter is not provided, render_to_response () uses an empty Dictionary.