difference between id and pk

[amit pant]

I want to know, what is main difference between pk and id on django.
Would appreciate if any one could help me.
Thanks

[Christian Ledermann]

If you do not add a primarykey explicitly django will create a field `id` for you by default.

Normally this is an autoincrement integer.

see https://docs.djangoproject.com/en/2.1/topics/db/models/#automatic-primary-key-fields

You may name your primary key field to whatever you want.

`pk` is an alias that will always be the field you defined as your primary key field.

Normally you will be fine with the autocreated primary key fields in which case `id` and `pk`

will have the same effect, but when you choose to give your field a different name `id` and `pk` 

will differ.

In your code you should prefer `pk` over `id` for the above reasons

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Best Regards,

Christian Ledermann

Newark-on-Trent - UK
Mobile : +44 7474997517

https://uk.linkedin.com/in/christianledermann
https://github.com/cleder/


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