透明地将Django模型字段存储为JSON数据
Say I have an object, "Order," a field of which, "items," holds a list of order items. The list of items will never be searched or individually select...
django管理员更改列表中的自定义list_editable字段,它不直接对应于模型字段
Assuming my model looks like this (this is a simplified example): 假设我的模型看起来像这样(这是一个简化的例子): class Person(Model): first_name = CharField(...) last_na...
Django admin:如何显示模型中标记为editable=False的字段?
Even though a field is marked as 'editable=False' in the model, I would like the admin page to display it. Currently it hides the field altogether.. H...
将动态字段添加到django管理模型表单
I need to add the field with link to the model view on my site to the django admin view. When I add field name to the list_display and define method f...
对于django管理员,如何在User模型中添加字段并使其在管理员中可编辑?
I'm trying to understand the django admin better and at the same time, I'm trying to add one more field to the current user admin. In models.py I've d...
我应该如何设计我的对象模型,以便我的DAL可以填充只读字段?
In order to separate concerns, on my current project, I've decided to completely separate my DAL and BLL/Business objects in separate assemblies. I wo...
Oracle DB:映射日期字段类型,具有从db到实体模型字段的特定格式
I am trying to map a field with type Date into my entity from Oracle DB which looks like this: 10.06.1999 10:58:45 我试图将类型为Date的字段从Oracle DB映射到我的实体,如下所...
TP5 关联模型使用(嵌套关联、动态排序以及隐藏字段)
在数据库设计中,常常会有如下这种关联模型,分类表中一条分类对应多个商品表中的商品如果要获得分类表中每条分类 以及 对应的商品的信息,则需要先查询分类表中的数据,然后根据结果遍历查询商品表,最后把数据拼接在一起TP5中关联模型可以解决这一问题普通关联先创建分类表模型 /application/comm...
django的Model 模型中常用的字段类型
常用的字段类型:AutoField:自增长字段,通常不用,如果未在Model中显示指定主键,django会默认建立一个整型的自增长主键字段BooleanField:布尔型,值为True或False,在管理工具表现为checkboxCharField:单行字符串字段,CharField有一个必填参数:...
django 模型字段设置默认值代码
这篇文章主要介绍了django 模型字段设置默认值代码,具有很好的参考价值,希望对大家有所帮助。一起跟随小编过来看看吧
如何使我的模型字段在Django中可选?
I'm trying to follow the full example at the bottom of 我试着按照下面的例子来做 https://docs.djangoproject.com/en/dev/topics/auth/customizing/ https://docs.django...
Django模型表单多对多字段不显示值
I have a many to many field and a foreign key field on a model form. It appears to be making the right query but the result are Objects and not the va...
使用datetime字段对Django模型条目进行逐日分组
I'm working with an Article like model that has a DateTimeField(auto_now_add=True) to capture the publication date (pub_date). This looks something li...
确定M2M字段是否具有自定义直通模型
With a custom through model for an M2M relationship, .add(), .create() and .remove() are disabled. 通过M2M关系的自定义直通模型,禁用.add(),. create()和.remove()。 At t...
如何在模型上实现打字稿上的新字段?
I create test.model.ts: 我创建test.model.ts: export interface IPosting { text: string; docDate: string; isDebit: boolean; amount: number; ...
Django中模型Model添加JSON类型字段的方法
这篇文章主要介绍了Django中模型Model添加JSON类型字段的方法,实例分析了Python的Django框架模型使用技巧,需要的朋友可以参考下
Django:如何过滤相关模型中两个字段的总和?
I have a model basically like this: 我的模型基本上是这样的: class Unit(models.Model): name = models.CharField(max_length=64)class UnitPrice(models.Model): ...
Django相关的模型和UpdateView字段
I created a model (UserSettings) to extend django's User model through a OneToOneField (as recommended by the documentation): 我创建了一个模型(UserSettings),通...
在Rails 5中,当我根据其中一个字段搜索模型时,为什么会得到未定义的find_by方法?
II'm using Rails 5. I want to search for a model based on a user_id field. My table looks like this 我正在使用Rails 5.我想基于user_id字段搜索模型。我的桌子看起来像这样 cindex=#...
如何检查模型中的某个字段是否为空?
I have a model, $userModel. I want to check if any of the fields for this model are empty or null. 我有一个模型,$userModel。我要检查这个模型的任何字段是否为空或空。 At the momen...