Technology, AI & ERP — explained in plain English
A custom field in Odoo POS has to be defined, loaded into the session snapshot, and only then displayed — and every step belongs in your own module if it is to survive upgrades. This guide shows the upgrade-safe pattern: _inherit models, _loader_params overrides with super(), patch()-based JavaScript, and inherited templates.
POS order-line pricing is computed twice — instantly in the browser and authoritatively on the server. This article maps both sides, from pricelist and fiscal position to tax rounding, and shows how to inject custom pricing logic so the till and the backend never disagree.
WebSockets, Server-Sent Events, and polling all solve real-time updates, but they differ sharply in directionality, complexity, and infrastructure demands. This article explains how each one actually works and gives you a concrete decision framework for picking the right tool.
Database indexes aren’t magic — they’re B-trees: wide, shallow, self-balancing structures that turn million-row scans into about three page reads. This explainer builds the intuition, walks through real engine behavior in PostgreSQL and MySQL, and spells out the write costs indexes carry.
Beneath every git commit lies a content-addressable object database of blobs, trees, and commits linked into a directed acyclic graph. This walkthrough unpacks the four object types, SHA hashing, the .git layout, refs, packfiles, and the plumbing commands that expose it all.
Odoo is a monolith made of plug-ins — every app, including Settings, is a module. This guide builds a complete minimal Library Management module for Odoo 17: directory layout, __manifest__.py key by key, security CSV, views, actions, menus, and the load-order rule that trips up every first module.