from django.db import models from django.contrib.postgres.fields import ArrayField
class Tag(models.Model): name = models.CharField(max_length=50)
class Article(models.Model): tags = models.ManyToManyField(Tag) # 多选标签
COLOR_CHOICES = [ ('R', 'Red'), ('G', 'Green'), ('B', 'Blue') ] class Product(models.Model): colors = ArrayField( models.CharField(max_length=1, choices=COLOR_CHOICES), default=list )
from django import forms class SurveyForm(forms.Form): options = forms.MultipleChoiceField( choices=[('A', 'Option A'), ('B', 'Option B')], widget=forms.CheckboxSelectMultiple )
from django.db import models
from django.contrib.postgres.fields import ArrayField
方案1：多对多关系
class Tag(models.Model):
name = models.CharField(max_length=50)
class Article(models.Model):
tags = models.ManyToManyField(Tag) # 多选标签
方案2：PostgreSQL数组字段
COLOR_CHOICES = [
('R', 'Red'),
('G', 'Green'),
('B', 'Blue')
]
class Product(models.Model):
colors = ArrayField(
models.CharField(max_length=1, choices=COLOR_CHOICES),
default=list
)
方案3：表单多选（需配合模型字段）
from django import forms
class SurveyForm(forms.Form):
options = forms.MultipleChoiceField(
choices=[('A', 'Option A'), ('B', 'Option B')],
widget=forms.CheckboxSelectMultiple
)