django model validation

Normal Mode:1PHP2 classUsermodelextendsrelationmodel{3 4 5 /** Automatic Verification **/6 protected $_validate=Array( 7 /**array ([validation field],[validation Rule],[error prompt] (validation condition (default is field Validation), (additional rule), (

The meta of the Django model class is an internal class that defines the behavior characteristics of some Django model classes. Here is a summary of this: Abstract This property is defined as whether the current model class is not an abstract class. The so-call

M in MTV represents the model. The Django model defines data in the database in the form of Python code. For the data layer, it is equivalent to the create table statement. It only executes Python code instead of SQL, and contains more meanings than database field definitions. Django uses the

Environment: Ubuntu+terminal (The previous steps are the last repetition, can be skipped)1, the establishment of engineering and application:[Email protected]:/home/uu# mkdir work[email protected]:/home/uu# cd work[email protected]:/home/uu/work# django-admin.py startproject csct06[email protected]:/home/uu/work# cd csct06/[email protected]:/home/uu/work/csct06 # django-admin.py Startapp blog[email protecte

After a simple understanding of how the unobtrusive JavaScript form of validation is programmed in jquery, let's explain how asp.net MVC uses it to implement client-side validation. Server-side validation is ultimately implemented in the corresponding Modelvalidator, and the final validation rules are defined in the co

Tags: creating object Database Operations str BSP COMM LTE elf two usesModel Instance Methods STR (): Called when an object is converted to a string. Save (): Saves the model object to the data table, and the ORM Framework is converted to the corresponding INSERT or UPDATE statement. Delete (): Removes the model object from the data table and the ORM framework is converted to the correspon

The Django Model form componentThis is a magical component, by name we can see that the function of this component is to combine the model and form, first a simple example to see how this thing is used: for example, our database has such a student table, the field has a name, age, Hobby, mailbox, telephone, address, Registration time and so on a lot of informatio

Tags: djangoDjango makes database queries and management through the creation of models. The models.py file in the Django app directory is used to save the data model, where each class can correspond to a table in the database, and the interface of the query is very simple and efficient.First of all, the configuration of the database is still implemented in settings.py, you can refer to the previous article

Model validation is an important part of ASP. This article describes several ways to model validation in ASP. NET MVC. Dataannotation Validationattribute Ivalidatableobject IDataErrorInfo dataannotationDataannotation translation is the meaning of "data annotations", the Dataannotation namespac

Orm: ing between object databases and models. If you want to operate the database in a simple way, such as using a class, it is like P = person. get (ID = 1), you must map the code to the database structure, you can create a set of classes and their corresponding relationships to the database tables in advance, or track the database structure in real time. Obviously, the second method affects efficiency, so most of the time, at the beginning, a model

I. MVC validation usage: In the Asp.net MVC framework, if you need to add verification to the model object, we can mark all attribute attributes inherited from validationattribute on the model attribute. For exampleCode, Stringlength/range/compare are inherited from validationattribute class. Public Class Logonmodel{[Required][Stringlength ( 10 )] Public