隐藏django模型字段，并在表单提交时自己生成它

from django.db import models

class MyModel(models.Model):
    my_field = models.CharField(max_length=100, editable=False)
    # 其他字段...

from django import forms
from .models import MyModel

class MyModelForm(forms.ModelForm):
    class Meta:
        model = MyModel
        fields = '__all__'

    def save(self, commit=True):
        instance = super().save(commit=False)
        # 生成隐藏字段的值
        instance.my_field = generate_value()
        if commit:
            instance.save()
        return instance

    def generate_value(self):
        # 在这里编写生成隐藏字段值的逻辑
        # 可以使用各种算法、函数等来生成唯一的值
        return "generated_value"

from django.shortcuts import render
from .forms import MyModelForm

def my_view(request):
    if request.method == 'POST':
        form = MyModelForm(request.POST)
        if form.is_valid():
            form.save()
            # 处理表单提交成功后的逻辑
    else:
        form = MyModelForm()
    return render(request, 'my_template.html', {'form': form})