[Fixed]-Django values_list of all fields in foreign key

by

20👍

You can reference foreign key attributes in values function:

MyEvent.objects.all().values('msg','event_type', 'msg__name', 'msg__description')
👤nima

4👍

You can create a list of field names with msg__ prepended to each value using list comprehension based on MyMessage._meta. Then simply unpack the values using .values(*list_of_fields).

Other than that, it is not possible. values() only accepts field names as positional arguments, so you’ll have to implicitly generate the arguments before calling values().

👤knbk

0👍

You should add related name to foreign key like this

class MyEvent(models.Model): 
    msg = models.ForeignKey(MyMessage,related_name='message')  
    event_type = models.IntegerField(choices=EVENTS_TYPES)

class MyMessage(models.Model): 
    notification = models.IntegerField(choices=EVENTS_TYPES2)  
    name = models.CharField(max_length=20, null=False, blank=False) 
    related_name=description = models.CharField(max_length=150, null=False, blank=False)

Then you can retrieve it with related name. like this:

objs=MyEvent.objects.all()
objs[0].message.all() # this is the Mymessage record

then you can create your list whatever you like

👤milad nasr

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