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Articles tagged with #django
Adding a few cities to a delivery zone is instant. Adding 5,000 cities ran over 5,000 database round-trips and regularly timed out the request. The root causes were two common Django patterns that don
Every day, a report runs: "what did each store sell yesterday?" One of the stores is in Lagos, the other in London. The report showed both stores as having zero sales for the last two hours of the day
You don't always control the schema you work with. Sometimes you inherit a codebase where GenericForeignKey is threaded through the models, and a migration isn't on the table. Loading a page of 20 aud
Your users want live updates: an order flips to paid, a notification pops, a dashboard number ticks up without a refresh. The obvious answer in Django is Channels. I reached for it first too. But as o
Change a product's price anywhere in your app, and it instantly syncs to a third-party marketplace. No manual triggers, no polling, no fragile save() overrides. Here's the signal pattern that powers i
A step-by-step guide
