在django中使用字典创建模型

from django.db import models

def create_model(name, fields=None, app_label='', module='', options=None, admin_opts=None):
    class Meta:
        # 设置模型的元数据
        pass

    if options is not None:
        # 更新模型的元数据
        Meta = type('Meta', (Meta,), options)

    attrs = {'__module__': module, 'Meta': Meta}

    if fields:
        # 添加模型的字段
        attrs.update(fields)

    # 创建模型
    model = type(name, (models.Model,), attrs)

    if app_label:
        # 将模型添加到指定的应用程序
        models.loading.register_models(app_label, model)

    if admin_opts is not None:
        # 注册模型到Django的管理后台
        class Admin(admin.ModelAdmin):
            pass

        for key, value in admin_opts.items():
            setattr(Admin, key, value)

        admin.site.register(model, Admin)

    return model

fields = {
    'name': models.CharField(max_length=100),
    'age': models.IntegerField(),
}

Person = create_model('Person', fields, app_label='myapp')