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Django simplified : by weever mbakaya
- 2. About Django: In-brief 1.It’s a free and open-source Python web framework developed to ease process of developing a web application. 2.Based on a “DON’T REPEAT YOURSELF” by emphasising reusability & “pluggability” of components, rapid development.(HOW AWESOME?!) 3.Born on 2003 at Lawrence -Journal Newspaper by Adrian Holovaty & Simon Willison to date maintained by Django Software foundation (DSF)
- 3. Requirements: Get started 1.Good standard PC :( i know you know…. lol ..) - Works on Windows | Linux | OSX 2. Install python packages. (It’s a python web framework remember) -Biased to 3.0 & above, Django does not support python 2.0
- 4. Download Django After dealing with requirements…….. A.Open your command shell | CMD (windows users) and terminal for UNIX users (Linux & OS B.Type this command: pip install Django==1.11 A minute for installation….. NB: If prompted to install pip, please do, take the command the shell throws to you and run it then proceed to run the installation command on option B
- 5. Installation:Django Check if Django is installed in your computer. 1.open your shell and type in these commands $python | to give you this | >>> (a python prompt) 2. Under this python prompt type this commands >>>print (get.version_()) 1.11
- 6. How you looking so far ? :Create Project Open Shell type in cd (it gives out your current directory) Let’s create project there with this command $django -admin startproject Braveapp -This will create Naramiapp in the current directory.
- 7. Structure of Django Django only allows you to set up, test and put your web application to production the “Django way” This Django way simply Model View Controller (MVC) Model - Data-source,database storage of code to add/delete/update storage View -What the user sees and interacts with. Application window Controller - Code that marries view to model handles business logic.
- 8. Ideology of Django: Projects/site & Apps For Django Projects/site & Apps are 2 different things. MVC lets you create an overall project/site that can include different apps in it & you can limit or allow any of them to run. You can have same application(s) in different projects. Project - umbrella to applications for its intended purpose App - code and business logic that satisfies the project’s intention.
- 9. Structure of Django projects/site 1 Apps directories are auto-generated: structure of Naramiapp we created before: Naramiapp/ manage.py Naramiapp/ __init__.py settings.py urls.py wsgi.py
- 10. Structure of Django projects/site 2 a.Naramiapp/ - Projects folder can be named/renamed into anything you like. b.manage.py - command-line utility to access your application with admin rights for manupilation. c. Naramipp - (btwn manage & init) your python package & code, all you import will come here with a url config of it eg.(Naramiapp.urls) d._init_py - to tell python to treat all your code as a whole package.(empty for python)
- 11. Structure of Django projects/site 3 e. settings.py - configurations of your app. Eg. python modules n variables. f.urls.py - controls URLs configurations on your django site.(“Url reference,content tables”) for our project. g. Wsgi.py - (Web Server Gateway Interface) compactible web-server for your project/site.
- 12. Test our Project/server 1 ALL GOOD UP TO HERE? Let us test our site on our server by running this command on our shell. - $python manage.py runserver NB: Python has a DEVELOPMENT SERVER for your project ONLY, using the same for PRODUCTION at your own risk!, especially for large request site.
- 13. Test our Project/server 2 PROCESS to RESULT.. Performing system checks... System check identified no issues (0 silenced). You have unapplied migrations; your app may not work properly until they are applied. Run 'python manage.py migrate' to apply them. April 15, 2017 - 15:50:53 Django version 1.11, using settings 'mysite.settings' Starting development server at http://127.0.0.1:8000/ Quit the server with CONTROL-C.
- 14. Testing our project/server 3 Visit the URL produced when you got after runserver command. Should display It worked! As shown on image
- 15. Django App 1 Remember the difference between Project & Site right? To create an application run the following command: $ python manage.py startapp Narami
- 16. Django app 2 Narami/ __init__.py admin.py apps.py migrations/ __init__.py models.py tests.py views.py You should be having some beautiful code like this after running that command. Django automatically generates the directories for you . LIKE A BOSS!
- 17. DJANGO SIMPLIFIED: Part 1 Conclusion Hello there, This is just part 1 to get you up to speed on how Django is structured, i will release Part 2 that is extensive on Django Application and get use to development of a simple django application. Buzz Me: Mail: [email protected]