django-orm

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Merging duplicates in a list? - Question is more complex than it seems

So I have a huge list of entries in a DB (MySql) I\'m using Python and Django in the creation of my web application.[详细]

2022-12-17 11:49 分类：问答
Error when adding a ManyToManyField in Django

Ok, so I posted a question recently regarding an error when adding a ManyToManyField The Models are the ones below[详细]

2022-12-17 05:23 分类：问答
Filter with field has relationship in Django?

I have these models in Django: class Customer(models.Model): def __unicode__(self): return self.name name = models.CharField(max_length=200)[详细]

2022-12-15 17:16 分类：问答
Django models generic modelling

Say, there is a Page that has many blocks associated with it. And each block needs custom rendering, saving and data.[详细]

2022-12-15 00:20 分类：问答
How to properly query a ManyToManyField for all the objects in a list (or another ManyToManyField)?

I\'m rather stumped about the best way to build a Django query that checks if all the elements of a ManyToMany field (or a list) are present in another ManyToMany field.[详细]

2022-12-13 16:11 分类：问答
Django: get aggregated value of two multiplied columns

开发者_JAVA技巧I need to get aggregated value of two columns. So first multiple them together and then get theirs sum(). Code below naturally does not work, it is just for clarification.[详细]

2022-12-13 12:01 分类：问答
Django ORM: dynamic columns from reference model in resultset

Creating an app to track time off accrual.Users have days and days have types like \"Vacation\" or \"Sick\"[详细]

2022-12-12 09:33 分类：问答
What is simplest way join __contains and __in?

I am doing tag search function, user could observe a lot of tags, I get it all in one tuple, and now I would like to find all text which include at least one tag from the list.[详细]

2022-12-11 15:24 分类：问答
How to create annotation on filtered data in Django ORM?

I have the following models: class ApiUser(models.Model): apikey = models.CharField(max_length=32, unique=True)[详细]

2022-12-09 01:14 分类：问答