django-queryset

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Django QuerySet join across four tables, including ManyToMany?

Given the following models, my goal is to create a QuerySet that pulls all available Tag objects for a given PostCategory id. I know how to write this in SQL but can\'t figure out how to do it using t[详细]

2023-02-24 03:41 分类：问答
constructing a joined django query

I\'m interacting with a legacy db on another system, so the models are written in stone and not very django-ey.[详细]

2023-02-22 08:14 分类：问答
How do Django queries 'cast' argument strings into the appropriate field-matching types?

Let\'s take the Django tutorial. In the first part we can find this model: class Poll(models.开发者_如何学GoModel):[详细]

2023-02-21 07:05 分类：问答
Django: does the ORM support the SQL "IN" operator?

Does the Django ORM support the SQL IN 开发者_如何学JAVAoperator? Something like: SELECT * FROM user[详细]

2023-02-21 05:19 分类：问答
Delete Django QuerySet objects with a duplicate value in a particular field

I have this Django model (from Django CMS): class Placeholder(models.Model): slot = models.CharField(_(\"slot\"), max_length=50, db_index=True)[详细]

2023-02-21 04:49 分类：问答
Performing a Django Query on a Model, But Ending Up with a QuerySet for That Model's ManyToManyField

I have a third party Django App (Satchmo) which has a model called Product which I make extensive use of in my Django site.[详细]

2023-02-20 04:23 分类：问答
Django: Django QuerySet with Date SELECT working erratically

Up until a couple days ago I have been using the following query succesfully.The following query has always returned the data it was supposed to return:[详细]

2023-02-19 23:39 分类：问答
Getting a count of objects in a queryset in Django

How can I add a field for the count of objects in a database.开发者_JAVA技巧 I have the following models:[详细]

2023-02-19 16:27 分类：问答
Django Queryset with filtering on reverse foreign key

I have the following Django model: class Make: name = models.CharField(max_length=200) class MakeContent:[详细]

2023-02-19 15:44 分类：问答
Django ManytoMany widget to CheckboxSelectMultiple and chained querysets

It happened that I needed a ManytoMany field to be displayed as a CheckboxSelectMultiple no problem with that. The trick part is that there are default fields to be displayed and a user should be able[详细]

2023-02-18 16:41 分类：问答