By Antonio Mele
Create your individual line of winning internet purposes with Django
About This Book
- Learn Django by means of construction 4 fully-functional, real-world net functions from scratch
- Develop robust internet functions speedy utilizing the easiest coding practices
- Integrate different applied sciences into your program with transparent, step by step reasons and accomplished instance code
Who This ebook Is For
What you'll Learn
- Build sensible real-world internet purposes with Django
- Use Django with different applied sciences resembling Redis, Celery, Solr and Memcached
- Develop pluggable Django applications
- Create complicated gains, optimize your code and use the cache framework
- Add internationalization in your Django projects
- Add social positive factors in your projects
- Build RESTful APIs in your applications
Django is a strong Python internet framework designed to increase net purposes quick, from basic prototypes to large-scale tasks. Django encourages fresh, pragmatic layout, and gives builders with a accomplished set of instruments to construct scalable net applications.
This e-book will stroll you thru the production of 4 specialist Django initiatives, instructing you ways to resolve universal difficulties and enforce top practices.
The publication starts through exhibiting you the way to construct a web publication program, prior to relocating directly to constructing a social photo bookmarking site, a web store and an e-learning platform. you'll the right way to construct a seek engine and enforce a person job move. additionally, you are going to create a suggestion engine, an e-commerce coupon approach and a content material administration method. The ebook also will educate you the way to augment your functions with AJAX, create RESTful APIs and setup a construction setting on your Django projects.
After interpreting this ebook, you have got a superb figuring out of the way Django works and the way to combine it with different applied sciences to construct useful, complex, internet applications.
Style and approach
This is an easy-to-follow advisor to development 4 assorted production-ready Django tasks. every one undertaking makes a speciality of a selected sector of the framework and every subject in the tasks is defined with sensible examples and comprises most sensible perform recommendations.
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Extra info for Django By Example
If your form data does not validate, cleaned_data will only contain the valid fields. Now, you need to learn how to send e-mails with Django to put everything together. [ 38 ] Chapter 2 Sending e-mails with Django Sending e-mails with Django is pretty straightforward. py file of your project: • EMAIL_HOST: The SMTP server host. Default localhost. • EMAIL_PORT: The SMTP port Default 25. • EMAIL_HOST_USER: Username for the SMTP server. • EMAIL_HOST_PASSWORD: Password for the SMTP server. • EMAIL_USE_TLS: Whether to use a TLS secure connection.
Filter(publish__year=2015)\ filter(author__username='admin') We are building queries with field lookup methods using two underscores (publish__year), but we are also accessing fields of related models using two underscores (author__username). Using exclude() You can exclude certain results from your QuerySet using the exclude() method of the manager. exclude(title__startswith='Why') Using order_by() You can order results by different fields using the order_by() method of the manager. order_by('title') [ 20 ] Chapter 1 Ascending order is implied.
Creating and applying migrations Let's create a data table for our model in the database. Django comes with a migration system to track the changes you do to your models and propagate them into the database. The migrate command applies migrations for all applications listed in INSTALLED_APPS; it synchronizes the database with the current models and migrations. [ 11 ] Building a Blog Application First, we need to create a migration for the new model we just created. py inside the migrations directory of the blog application.