Django.tar.gz

django-job

This course walks you through setting up docker for Django on the Educative platform. You also get hands-on experience running a simple Django web app. Finally, the course answers a few FAQs related to Django setup on the Educative platform.

Running Django on Educative

## Running a simple web app

After setting up the docker, it's time to run a simple Django web app.

#!/usr/bin/env python
"""Django's command-line utility for administrative tasks."""
import os
import sys


def main():
    """Run administrative tasks."""
    os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'my_project.settings')
    try:
        from django.core.management import execute_from_command_line
    except ImportError as exc:
        raise ImportError(
            "Couldn't import Django. Are you sure it's installed and "
            "available on your PYTHONPATH environment variable? Did you "
            "forget to activate a virtual environment?"
        ) from exc
    execute_from_command_line(sys.argv)


if __name__ == '__main__':
    main()


import React from 'react';
import { shallow, configure } from 'enzyme';
import Adapter from 'enzyme-adapter-react-16';

configure({ adapter: new Adapter() });

import HelloWorld from './app';

var TestResult = function() {
    this.succeeded = false;
    this.reason = "";
    this.input = "";
    this.expected_output = "";
    this.actual_output = "";
}

export const executeTests = function() {

  var results = [];

  result = new TestResult();
  result.input = 'HelloWorld Component';
  result.expected_output = "span containing text 'Hello World'"

  let wrapper = shallow(<HelloWorld />);

  // Call your Challenge function here.

  let type = wrapper.type();
  let testSuccessful = true;
  let failureReason;

  if (type !== 'span') {
    testSuccessful = false;
    failureReason = "You need to render exactly one span HTML element";
  } else if (wrapper.props().children != "Hello World") {
     testSuccessful = false;
     failureReason = "You have rendered wrong message in your span element";
  }

  result.actual_output = wrapper.html();

  if (testSuccessful) {
    result.succeeded = true;
    result.reason = "Succeeded"
  } else {
    result.succeeded = false;
    result.reason = failureReason;
  }

  results.push(result);

  return results;
}


React

Dart

GoJS React

Typescript React

Vue.js

It's evident from the file tree in the widget above that we only show the necessary files to the users. Therefore, in case of Django, we don't need to show the `__pycache__` and `migrations` folders and the `db.sqlite3` file.

The idea is to keep the project in a separate directory and show only the necessary files to the user in the Single Page App (SPA) widget. The user can view and update the files in the SPA widget. When they press the "Run" button, the files from the widget are copied to the project folder and run from there.


## Allowed hosts

One of the configurations in the `settings.py` file is the `ALLOWED_HOSTS` field. We can put `'*'` there but that's less secure. We need to put the exact host URL where the app is running. On Educative, this URL is different for every user and can't be specified as it is. In this case, we can use the `{{EDUCATIVE_LIVE_VM_URL}}` API key in the code as shown below:

```n
ALLOWED_HOSTS = ['{{EDUCATIVE_LIVE_VM_URL}}'.replace('https://','')]
```

The `{{EDUCATIVE_LIVE_VM_URL}}` key is replaced by the custom live VM URL of the user as shown in **line 28** in the code above.

# Running a simple web app

After setting up the docker, it's time to run a simple Django web app.

# Allowed hosts

One of the configurations in the `settings.py` file is the `ALLOWED_HOSTS` field. We can put `'*'` there but that's less secure. We need to put the exact host URL where the app is running. On Educative, this URL is different for every user and can't be specified as it is. In this case, we can use the `{{EDUCATIVE_LIVE_VM_URL}}` API key in the code as shown below:

```n
ALLOWED_HOSTS = ['{{EDUCATIVE_LIVE_VM_URL}}'.replace('https://','')]
```

The `{{EDUCATIVE_LIVE_VM_URL}}` key is replaced by the custom live VM URL of the user as shown in **line 28** in the code above.

Learn how to set up and run a Django project on the Educative platform.

__default

Django Simple Web App

Running a simple web app

Allowed hosts