Django 型号。Model class。 模型.CharField

Question

This question might have been asked before, but sorry I couldn't find it so that is why I am asking

I want to understand the title models.CharField()

I understand that the we inherit the Model class from the module call models.

but then why not the class Model.charfield() as the method or function of Model

why models? which seams to me like a module and CharField seems like a class

its seems to me we are accessing a class from the models module.

example

from django.db import models

class Page(models.Model):
    title = models.CharField(max_length=60)
    permalink = models.CharField(max_length=12, unique=True)
    update_date = models.DateTimeField('Last Updates')
    bodytext = models.TextField('Page Content', blank=True)

I appreciate your time

Answer 1

Model inherit from models class, In django ORM Consider it more Like Model is to create a table in database and for each columns(here fields) in database we use models.corresponding_fields()

if you inspect db.models:

    (Many imports and )
    from django.db.models.query_utils import FilteredRelation

    # Imports that would create circular imports if sorted
    from django.db.models.base import DEFERRED, Model  # isort:skip
    from django.db.models.fields.related import (  # isort:skip
        ForeignKey, ForeignObject, OneToOneField, ManyToManyField,
        ManyToOneRel, ManyToManyRel, OneToOneRel,
    )


    __all__ = aggregates_all + constraints_all + enums_all + fields_all + indexes_all
    __all__ += [
        'ObjectDoesNotExist', 'signals',
        'CASCADE', 'DO_NOTHING', 'PROTECT', 'SET', 'SET_DEFAULT', 'SET_NULL',
        'ProtectedError',
        'Case', 'Exists', 'Expression', 'ExpressionList', 'ExpressionWrapper', 'F',
        'Func', 'OuterRef', 'RowRange', 'Subquery', 'Value', 'ValueRange', 'When',
        'Window', 'WindowFrame',
        'FileField', 'ImageField', 'OrderWrt', 'Lookup', 'Transform', 'Manager',
        'Prefetch', 'Q', 'QuerySet', 'prefetch_related_objects', 'DEFERRED', 'Model',
        'FilteredRelation',
        'ForeignKey', 'ForeignObject', 'OneToOneField', 'ManyToManyField',
        'ManyToOneRel', 'ManyToManyRel', 'OneToOneRel',
    ]

in short models in just __init__.py file contains all imports as a collection

for in depth details you can reads django docs - Model

Answer 2

for any one else worried about this...

i wasn't wrong to ask this... and here i got my answer from django documentation page

click [here] ( https://docs.djangoproject.com/en/3.1/ref/models/fields/ )

Note

Technically, these models are defined in django.db.models.fields, but for convenience they're imported into django.db.models; the standard convention is to use from django.db import models and refer to fields as models.Field.

this the answer: Technically, these models are defined in django.db.models.fields, but for convenience they're imported into django.db.models