My operating system is centos6.51 First choose what database Django will use. django1.10 default database is Sqlite3, I want to use MySQL database, but in order to test convenient by the way to install the SQLite development package.Yum install MySQL mysql-devel#为了测试方便, we need to install the Sqlite-devel package2 Next we need to install Python, because Python3 has become the mainstream, so next we will install Python3, to the official website to dow
Use Django to implement a runable blockchain application, django Block
We are new to the rise of digital currencies and want to know the technology behind it-how blockchain is implemented.
However, it is not easy to fully understand blockchain. I like to learn in practice and learn more about the technology by writing code. You can build a blockchain to deepen your understanding of the blockchain.
Preparat
Django analysis-how to customize manage commands, django custom manage
We have used Django manage. py command, while manage. py is a command line tool automatically generated in the root directory when we create a Django project. It can execute some simple commands. Its function is to put the
[Django] django-debug-toolsUse django-debug-tools
It is very easy to develop with django, but many times our experience is not enough, we will dig a lot of traps for ourselves, whether it is performance problems, or the use of development language skills will pose a threat to the stability of the application. After d
Django file storage (2) custom storage system, django file storage
To write a storage system by yourself, follow these steps:
1. Write a file inherited from django. core. files. storage. Storage.
from django.core.files.storage import Storageclass MyStorage(Storage): ...
2. Django must be able to instantiate MyStorag
Django-access control, unable to access django InternetThe user authentication system provided by django provides the access control function.1. Only login users are allowed to log onDjango users can be divided into two types: one is authenticated users, that is, in django. contrib. auth. models. user. The other is ano
class Foo(models.Model): bar = models.CharField(maxlength=30) class Meta: # ...The Model metadata is "any data that is not a field"-such as sorting options, admin options, and so on.Here are all the possible Meta options. None of the options are required. Whether to add Class Meta to your model is completely optional.App_labelApp_label This option is only used in one case, your model class is not in the models.py file under the default application package, you need to specify that the model clas
Django paging technology django-pagination and Paginator, djangopaginator
Please note the source before reprint: http://blog.csdn.net/gugugujiawei
I. Overview
Almost all web applications require the paging function, but the paging technology is divided into two types, one is to load all, stored in the browser cache, and the other is paging access, partially load. The advantage of the previous method is that
A brief introduction to the Django FrameworkThis address: http://blog.csdn.net/caroline_wendy/article/details/291722711. IntroductionDjango is an open-source Web application framework, written by Python.Using the MVC software design pattern, i.e. model M, view V and Controller C.It was originally developed to manage some of the news content-based sites of the Lawrence Publishing Group and was published in July 2005 under the BSD license.The framework
A deep understanding of Django's custom filters and a deep understanding of django
Preface
This article mainly introduces you to the Django custom filter and shares it for your reference. I will not talk much about it below. Let's take a look at the details:
Filters and functions
Django filters are essentially functions, but there are too many "functions". To sh
Example of how django restricts access and redirection by anonymous users, while django Anonymous Users
Preface
We should have met that in some pages, we do not want anonymous users to access them, such as personal pages. Such pages can only be accessed by logged-on users. In django, we also have many ways to implement it.
The simplest way is to judge the user is
[Django] batch data import, django Data Import
After a month of review, the examination was finally completed. During this period, I studied how to import data to the database in batches during the Django webpage creation process.
This process is really terrible and has made many low-level mistakes, which will be mentioned in the text. in addition, The py script
Previous steps:Download Python,django and install the Python interpreter as well as the Django module.The overall steps are described:Create a Django ProjectStep one: Go to the installed Python directoryStep Two: Enter the command to create the project:Create a Business App CatalogStep One: Enter the project catalog that has been createdStep Two: Enter Create app
After the last chapter, we've created the good one Django app, and then we're ready to refine it.First, let's start with some basic concepts.
Each application created in Django is made up of Python packages that follow certain conventions. Django comes with a utility that automatically generates the basic directory structure of an application, so you can
Django-full-text retrieval, django-full-text retrieval
After two months, I finally completed all the major functions. In the past week, I have consulted a lot of materials to achieve full-text retrieval, I will record it here today, so as not to catch it later ~
First, I will introduce the Django full-text search logic I used. I checked various materials on the I
Django Model Modification and data migration, django model migrationMigrations
It is troublesome for Django to modify the Model. The syncdb command only creates tables that are not in the database and does not modify existing data tables synchronously, you cannot delete the data model. If you add or modify fields in the data model or delete a data model, you need
Django unit test (1), Django unit test (
The Django testing framework is very simple. The preferred method is to use the unittest module in the python standard library.Writing tests
Unit Tests of Django use the unittest module of python, which defines tests using class-based methods. Class Name:
version: Django 1.10.1 (Other versions may have different implementations for a good workaround)Reference Official document:https://docs.djangoproject.com/en/1.10/topics/auth/customizing/In the development process, the Django User Management module can bring us a lot of convenience, but the Django Users module provides too few fields, so the extension of the user
Python Web development framework-Django (2), python-django
Next, I will introduce some practical skills and notes. The first time I used MarkDown for editing, I felt that the gap was too large and not so nice.GET/POST
Data Interaction between the front and back ends. JQuery is used to implement get/post requests.GET Method 1: Use a regular expression to match url parameters
$. Ajax ({type: "GET", url: "/se
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