Re: Randomly Generate a "Certificate of Completion"

You'd need to have a profile for each user, so you can track if they reach the URL (true/false) and then use their email or internal ID or a generated UUID for the certificate (you could store this extra code as well if needed). For generating a certificate, I'd use a PDF format; this would cre

Learning django

Hi here, for those of you looking for resouces to learn django, you can check these telegram channels for leaning ressources. https://t.me/djangonautees https://t.me/joinchat/AFg8fQgHoBk5uPMCvQ -- You received this message because you are subscribed to the Google Groups "Django users" gr

Django-does-not-call-get-prep-value-while-using-lookups

I have an custom model field in which i have implemented cryptography. I get prefect results when I don't use lookups for filtering data i.e. it calls *get_prep_value()* But when I filter data using lookups like *startswith* or *endswith*. it does not calls get_prep_value().How to solve this pr

Process Data during server initialization

Hello, I'm working on a data and calculation intensive django application. It uses pandas and plotly.py to create many charts and graphs. I have some control over the design of the application but not total control. One decision that I stuck with is that all charts and graphs are preprocess

Re: Process Data during server initialization

Could you run a cron job on the system to analyze the data periodically? Sent from my iPhone > On Oct 22, 2020, at 1:30 PM, Lois Greene-Hernandez wrote: > > Hello, > > I'm working on a data and calculation intensive django application. It uses > pandas and plotly.py to create many charts a

Re: Process Data during server initialization

Well it's data that I need to populate the pages. It's very processor intensive and I'll need to pass it back to the views once it's processed. Can I pass data back to the views once I've run a task? I'm looking into caching alternatives. Thanks Lois On Thu, Oct 22, 2020 at 4:55 PM Scott Sawyer

Avoiding duplicate on_commit actions

Hi all, If a record is updated more than once in a transaction causing something to need to happen on commit, but don't want to suffer the performance cost of unnecessarily doing that post-commit activity multiple times, is there any clean way to de-duplicate that? If on_commit has an optional

Re: Process Data during server initialization

Hi Lois, To expand on what Scott is saying. - model DB tables to store the data you need to render the graphs - build a service to preprocess the data - this service can run periodically depending on how up to date you need the graphs to be (a microservice) - build a single endpoint to simple fetc

Scaling dumpdata and loaddata

dumpdata and loaddata work for me on some smaller applications, but I am wondering whether any of you have strategies to scale it up to more data. My DevOps doesn't really give developers access to much - not even RDS snapshots. The larger applications have written some logic to move data, bu

Re: Scaling dumpdata and loaddata

I have found an answer of sorts in a previous thread. Fred says: > Just for the follow-up, I ended up using pgloader and after some argument tweaking, it worked. Cheers. On Thursday, October 22, 2020 at 6:48:57 PM UTC-4 Dan Davis wrote: > dumpdata and loaddata work for me on some smaller applic

Re: Process Data during server initialization

Well, it's a bit of a blunt weapon, but Python is going to run any code it finds at module scope as the process is initialised. So you could cause your heavy stuff to be run there? Or at least spawned from there? On Thu, 22 Oct 2020, 22:59 Okware Aldo, wrote: > Hi Lois, > > To expand on what Sco

Re: Randomly Generate a "Certificate of Completion"

This is perfect. Thank you Derek! On Thu, Oct 22, 2020 at 9:14 AM Derek wrote: > You'd need to have a profile for each user, so you can track if they reach > the URL (true/false) and then use their email or internal ID or a generated > UUID for the certificate (you could store this extra code as