TypedChoiceField – Django Forms
TypedChoiceField in Django Forms is a field just like ChoiceField, for selecting a particular choice out of a list of available choices. It is used to implement State, Countries etc. like fields for which information is already defined and user has to choose one. It is used for taking text inputs from the user. The default widget for this input is Select.It Normalizes to: A string. It is used to coerce a value to a particular data type....
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What is the job of the SchemaEditor?
In this article, we will explore the role of the SchemaEditor by delving into its functionality within a specific project. Additionally, we will demonstrate how to deploy the SchemaEditor on a website....
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related_name – Django Built-in Field Validation
The related_name attribute specifies the name of the reverse relation from the User model back to your model. If you don’t specify a related_name, Django automatically creates one using the name of your model with the suffix _set....
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include – Django Template Tags
A Django template is a text document or a Python string marked-up using the Django template language. Django being a powerful Batteries included framework provides convenience to rendering data in a template. Django templates not only allow passing data from view to template, but also provides some limited features of programming such as variables, for loops, comments, extends, include etc. This article revolves about how to use include tag in Templates. include tag loads a template and renders it with the current context. This is a way of “including” other templates within a template. The template name can either be a variable or a hard-coded (quoted) string, in either single or double quotes....
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Django Basic App Model – Makemigrations and Migrate
In this article, we will create a basic model of an app and also learn about what are migrations in Django and migrate in Django also develop some basic understanding related to them in Python....
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A Guide to Sending Data Using Cache in Django
In this article, we aim to comprehensively explore the functionality of sending data using cache in Django by providing a well-structured example implementation. Through this practical demonstration, we will delve into the intricacies of Django’s caching system, ensuring that you gain a clear understanding of how to effectively utilize it for sending data. By the end of this guide, you will possess the knowledge and skills needed to optimize your Django application’s performance and deliver a seamless user experience. we will understand it by one practical....
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User Authentication System using Django
In this article, we will explore the process of creating a secure and efficient user authentication system in Django, a high-level Python web framework. Building upon Django’s built-in capabilities, we will cover user registration, login, and more, providing you with the knowledge and tools necessary to enhance the security and usability of your web applications. Whether you are a beginner or an experienced Django developer, this tutorial will empower you to implement a robust user authentication system that safeguards user data and delivers a seamless experience to your users....
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Django ModelForm – Create form from Models
Django ModelForm is a class that is used to directly convert a model into a Django form. If you’re building a database-driven app, chances are you’ll have forms that map closely to Django models. For example, a User Registration model and form would have the same quality and quantity of model fields and form fields. So instead of creating a redundant code to first create a form and then map it to the model in a view, we can directly use ModelForm. It takes as an argument the name of the model and converts it into a Django Form. Not only this, ModelForm offers a lot of methods and features which automate the entire process and help remove code redundancy....
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Django Models
A Django model is the built-in feature that Django uses to create tables, their fields, and various constraints. In short, Django Models is the SQL Database one uses with Django. SQL (Structured Query Language) is complex and involves a lot of different queries for creating, deleting, updating, or any other stuff related to a database. Django models simplify the tasks and organize tables into models. Generally, each model maps to a single database table....
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Overriding the save method – Django Models
The save method is an inherited method from models.Model which is executed to save an instance into a particular Model. Whenever one tries to create an instance of a model either from admin interface or django shell, save() function is run. We can override save function before storing the data in the database to apply some constraint or fill some ready only fields like SlugField. Technically it is not recommended to override the save method to implement such functionalities because any error in save method lets to crash of whole database. So either if you are perfect at writing save method and error handling or don’t try save method and try to implement these functionalities either in forms, views, models, etc....
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How to use Django Field Choices ?
Django Field Choices. According to documentation Field Choices are a sequence consisting itself of iterables of exactly two items (e.g. [(A, B), (A, B) …]) to use as choices for some field. For example, consider a field semester which can have options as { 1, 2, 3, 4, 5, 6 } only. Choices limits the input from the user to the particular values specified in models.py. If choices are given, they’re enforced by model validation and the default form widget will be a select box with these choices instead of the standard text field. Choices can be any sequence object – not necessarily a list or tuple....
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UUIDField – Django Models
UUIDField is a special field to store universally unique identifiers. It uses Python’s UUID class. UUID, Universal Unique Identifier, is a python library that helps in generating random objects of 128 bits as ids. It provides the uniqueness as it generates ids on the basis of time, Computer hardware (MAC etc.). Universally unique identifiers are a good alternative to AutoField for primary_key. The database will not generate the UUID for you, so it is recommended to use default....
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