I have a model lets say, MyModel which has a foreign key to another
model say Tag.
class MyModel(models.Model):
id=models.AutoField(primary_key=True)
name=models.CharField(max_length=200)
tag = models.ManyToMany(Tag)
I have approximately 50,000 instances of MyModel and each MyModel can
have 100 Tags.
If I use the above model I will get 5Million entries in a table,
mymodel_tag but I can use all the features of ORM.
However If I write custom methods and treat above field as an array of
integers and write custom code to retrieve/save ids of tags associated
with MyModel, I will have just 50K entries but I will have to write
custom code for retrieval etc.
My Question is :
a) Which one should be used in this case?
b) If I want to write above only using an extra column in mymodel
table which will be the array of ids of all the tags associated with
each MyModel, how do i do that?
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