When comparing Django vs Yii, the Slant community recommends Django for most people. In the question“What are the best backend web frameworks?” Django is ranked 2nd while Yii is ranked 21st. The most important reason people chose Django is:
Django's philosophy of batteries included means that experienced developers won't have to plan too much ahead on what kind of application infrastructure they need and instead just start developing web applications quickly.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Developing a simple prototype can be very fast
Django's philosophy of batteries included means that experienced developers won't have to plan too much ahead on what kind of application infrastructure they need and instead just start developing web applications quickly.
Pro ORM support out of the box
Django supports Object-Relational Mapping. With models defined as Python classes which are actually subclasses of Django's django.db.models.Model
.
Each attribute of the model is then represented as a database field. Queries are lazily executed and Django gives developers an automatically-generated database-access API.
Pro Top notch documentation and help from community
The official Django documentation is probably some of the best around. Well written, thorough and they explain every little detail of the framework. Django is also a very popular tool, with an extensive community and a lot of experienced developers that have been using it for years. This means that there are a lot of guides and tutorials out there for new and experienced developers alike.
Pro Highly customizable
Django is in itself a highly customizable web framework. The database, template framework and ORM can all be swapped out.
Pro Has an admin panel out of the box
Django comes with a highly customizable admin panel and authentication out of the box. This makes the development and production of a simple CMS extremely easy.
Pro Mature software with many plugins developed over the years
Django was first released in 2005, it has had a lot of time to mature and become better with each release. It also has by far the largest community out of all python frameworks who have continuously over the years built and maintained many powerful plugins.
Pro Clear and defined MVC organization
Django follows some pretty well established MVC patterns. With everything in place and where requests follow a clear path through urlresolvers, middleware, view and context processors.
Pro Simple database management
Just a few lines of code can instruct Django to create all the tables and fields required in your database automatically. Schemas are managed with "migrations", that are also created automatically, and can be rolled out from your development box and implemented on production systems with just a single command.
This performs any database changes required, from table creation, indexes, renaming fields, and pre-populating initial data. Each migration builds on the previous migrations, so you can trace the evolution of your data and even recreate the layout of your database at any point in the lifecycle of your application.
Pro Rapid development through code scaffolding
Yii takes care of repetitive tasks through Gii, a web-based scaffolding tool. Gii takes care of code generation and creating code templates for:
- Models
- Controllers
- Forms
- Modules
- Extensions
- CRUD controller actions and views
- There are a lot of scaffolding templates made by community for Gii, that improve generated code functionality by a lot.
- Gii is very easy to extend yourself.
Pro Comes with important security standarts
Since security is a crucial part of any application, Yii comes with great security features out of the box to help developers create a secure and reliable application. These security features contain but are not restricted to:
- Input validation
- Output filtering
- Features against SQL injection
- Cross-site scripting prevention
Pro Highly extensible
Yii is built to be extremely extensible. Virtually every component of the framework can be extended programmatically. For example, if you want to add a unique id to your views, it's very easy to do:
namespace app\components;
class View extends yii\web\View {
public $bodyId;
/* Yii allows you to add magic getter methods by prefacing method names with "get" */
public function getBodyIdAttribute() {
return ($this->bodyId != '') ? 'id="' . $this->bodyId . '"' : '';
}
}
Pro Integrated with a testing framework
Yii makes use of Codeception, a great PHP testing framework that helps developers run their tests. They can be unit, functional or acceptance tests since Codeception supports them all.
Pro Lots of plugins available
Yii has about 2000 addons hosted on Yii's official website. These addons significantly decrease development time and increase the developer's efficiency.
Pro License
Yii is free and open source and is distributed under the BSD License.
Pro Strong community support
Yii has a strong and rather large community behind it. This is proven by the great number of blog posts, tutorials, guides and reviews on the Yii framework as well as the great number of extensions developed for it.
Pro Easy to install
Yii uses Composer to handle it's dependency installation. This is rather easy and not very time consuming, although it should be noted that Composer is very resource-intensive considering what it's job is. But that is not really Yii's fault.
Pro Best framework for CRUD operation
Yii Framework Provides most of features require for crud functionalities like GridView, Listview and DetailView (with jquery search and validation functions) by generating using GII.
Pro Highly extensible without effort
Cons
Con Can feel bloated for small projects
Django's sheer scale and functionality can feel clunky and bloated for small applications. It has too many bells and whistles which can get in the way when developing a small scale application.
Con The documentation does not cover real-world scenarios
It is a larger documentation indeed, however is not deep and covers non real problems or even don't show any examples. You'll be better with Google or Stackoverflow
Con Routing requires some knowledge of regular expressions
Given a GET request for /topics/426/viewpoints/1/sections/create
, how does Django decide which bit of Python code is invoked to handle it?
It compares the request path to your giant pile of regular expressions.
And then if there's some other regular expression starts matching /top
and all your requests for /topics/
start going there, good luck figuring out why. You won't be informed of any conflict until you notice you seem to be getting the wrong pages back.
The structure of URL paths is almost universally hierarchal. There is no call to have anything as ridiculously flexible (and notoriously hard-to-read) as regular expressions to organize request routing.
Con Template errors fail silently by default
If you make a typo in a template variable, or change a view so that variable is no longer passed to the template, you won't get an error message pointing out that something has gone wrong. That reference will just be treated as if it is an empty string instead.
There is a way to configure this, but since so many templates have been written assuming this behavior, nobody ever enables template errors because it would break so much of the existing support tools (e.g. the built-in admin interface).
Con Can be hard for beginners
Since Yii requires developers to write code following certain rules, or in other words, it requires developers to follow the "Yii way of doing things" it can be hard for beginners to warm up to it and start using it right away.
Con Not very good at many to many relations
(but there is a good plugin, namely CAdvancedArBehavior extension to do this)