django-orm

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Can I control the GROUP BY in django 1.3's orm?

I think this will 开发者_开发技巧best be explained with an example. Here is what the data would looks like:[详细]

2023-03-23 15:29 分类：问答
Django ManyToMany doubt

I have this models: class Comment(models.Model): text开发者_JAVA技巧 = models.TextField(max_length = 300)[详细]

2023-03-21 06:20 分类：问答
Correct Django models relationship

Preface: I have two models (Product and UserProfile) and I would to implement a mine comments system. The comment is related to an object, Product or UserProfile.[详细]

2023-03-20 14:13 分类：问答
Django query for ManyToManyField

class UserProfile(models.Model): user = models.ForeignKey(User, unique = True, related_name = \'user\')[详细]

2023-03-18 04:23 分类：问答
Questions regarding a optimizing a slow query (SQL included)

SELECT DISTINCT \"myapp_profile\".\"us开发者_如何学Goer_id\", \"myapp_profile\".\"name\", \"myapp_profile\".\"age\", \"auth_user\".\"id\", \"auth_user\".\"username\",[详细]

2023-03-16 14:42 分类：问答
Django ORM & Unit of Work

Is there any easy way / library / external app to introduce Unit of Work concept to Django ORM? What approaches or techniques do you use to solve the problem of importing the same row twice in a compl[详细]

2023-03-11 01:47 分类：问答
Django ModelField for an object that is the target of ForgeinKeys on other objects

I have some Django objects like this: class Award(Model): name = CharField(...) date = DateTimeField(...)[详细]

2023-03-11 01:21 分类：问答
Are there any alternative solutions to "Django smart select" capable of filtering a ManyToManyField?

As the Title and the included link pretty much say it al开发者_运维技巧l, I would extend the question with unnecessary examples.[详细]

2023-03-10 19:55 分类：问答
Why can't I save my model instances after editing them?

I have a model which I can instantiate just fine, but once created, if I attempt to save it I get an IntegrityError saying that the primary key must be unique.What\'s causing this?[详细]

2023-03-09 23:02 分类：问答
ManyToMany field not saved when using Django admin

I\'m experiencing a weird problem which I hope someone in here may be able to shed some light on. I\'m overriding the save() method of a model to add some 开发者_StackOverflowvalues to a ManyToMany-f[详细]

2023-03-09 14:02 分类：问答