Re: Tracking changes of a model

Hi Martin,

i think this should give you the basic idea:
http://stackoverflow.com/questions/1365963/diff-django-model-objects-with-manytomany-fields

Greetings,
Andreas

On 30 Okt., 12:15, Martin Tiršel <dja...@blackpage.eu> wrote:
> Hello,
>
> I am using Django admin to create/update some records. Now, I need to  
> track changes. After somebody updates a record, I need to see what was  
> changed and then create a text log like:
>
> changed `name`: oldvalue -> newvalue,
> changed `email`: o...@mail.xy -> n...@mail.xy
>
> Where is the right place, where I have access to unchanged model values  
> and validated values from the submit form? The place before the model is  
> updated by form values? Another approach would be to save all values into  
> a dictionary after the model is loaded from database and in save() method  
> compare old and new values, but I don't know how how to call a code after  
> load.
>
> Thanks,
> Martin

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