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By: Renu M

The Significance of Multi-Threading in Odoo 16

Technical Odoo 16

In the fast-paced world of modern business, efficient and responsive Enterprise Resource Planning (ERP) systems are necessary. Odoo, the renowned open-source ERP framework, has continuously evolved to meet these demands and has now reached its latest iteration, Odoo 16. With each new version, Odoo introduces innovative features and enhancements, but one aspect that has gained significant attention is its ability to harness the power of multithreading.

Multi-threading is a powerful concept in software development that enables a program to perform multiple tasks concurrently within a single process. Traditionally, programs run sequentially, where one task is completed before another begins. However, in multi-threading, a program can be divided into smaller units called threads, each capable of executing independently.

Imagine a scenario where you're downloading a file while also listening to music on your computer. Without multi-threading, you'd have to wait for the download to finish before you can enjoy your favorite tunes. But with multi-threading, the download and music playback can happen simultaneously, providing a smoother and more efficient experience.

In the context of Odoo development, multi-threading is a technique that enables the execution of multiple threads within a single process. Threads within a process share the same memory space, allowing them to perform tasks concurrently. This stands in contrast to processes that run in separate memory spaces, often requiring inter-process communication. The beauty of multi-threading lies in its ability to harness the full potential of modern processors, thereby expediting the execution of tasks.

The Significance of Multi-Threading in Odoo

In the world of business management, there are instances where tasks require significant computational power or deal with voluminous data sets. In such scenarios, executing these operations sequentially can lead to sluggish user experiences and processing bottlenecks. Multi-threading steps in to address this challenge by breaking down tasks into smaller units of work that can be processed concurrently. Here are some real-world scenarios where multi-threading can shine:

1. Data Insertion and Migration

Consider a situation where a large volume of data needs to be inserted into an Odoo database or migrated from one structure to another. By employing multi-threading, developers can divide the dataset into smaller chunks and have multiple threads perform the insertion or migration simultaneously. This can significantly reduce the time required for the operation.

2. Complex Calculations

Business logic often involves intricate calculations that are resource-intensive. Multi-threading allows developers to split these calculations into smaller segments, distributing them across threads for parallel computation. The results are then merged to produce the final outcome, speeding up the overall process.

A Practical Example: Multi-Threading in Odoo Stock Movements

To illustrate the power of multi-threading in Odoo, let's delve into a simplified example involving stock movements. Imagine a case where stock movements need to be processed, involving calculations and updates. Here's an outline of how it can be achieved:

import threading
import time
class StockMove(models.Model):
   _inherit = 'stock.move'
   def _action_done(self, cancel_backorder=False):
       res = super(StockMove, self)._action_done(
       for move in self:
           threaded_calculation = threading.Thread(
               target=self._run_delayed_calculations, args=([[move.id]]))
       return res
   def _run_delayed_calculations(self, move_ids):
       # Delay to ensure data consistency
       # Enter thread-safe environment
       with api.Environment.manage():
           new_cr = self.pool.cursor()
           self = self.with_env(self.env(cr=new_cr))
           moves = self.env['stock.move'].search([
               ('id', 'in', move_ids)]).with_env(self.env(cr=new_cr))
       # Perform calculations and updates for each move
           for move in moves:
               # Logic for calculations and updates (missing details)
       return {}

In the code above, we enhance the stock movement process using multi-threading. When a stock movement is marked as done, the `_action_done` method is triggered. Within this method, a new thread is created for each move. This new thread invokes the `_run_delayed_calculations` method, passing the move's ID as an argument.

The `_run_delayed_calculations` method demonstrates multi-threading in action. To ensure data consistency, we introduce a sleep period using `time.sleep(3)`. Following that, we create a new cursor and environment for the thread. The move records associated with the provided IDs are fetched and processed within this thread-safe environment.

Multi-threading serves as a potent tool in the arsenal of Odoo developers striving for optimal performance. By harnessing the power of parallel processing, tasks that once seemed time-consuming can now be completed swiftly. However, it's crucial to approach multi-threading with care. Concurrency introduces challenges like potential race conditions that must be mitigated through proper design and testing.

As your Odoo journey evolves, consider multi-threading as a strategic approach to elevating the performance of your applications. Stay updated with Odoo's evolving best practices and recommendations to ensure your development efforts remain aligned with the latest advancements. With multi-threading as part of your development toolkit, you're equipped to create Odoo applications that meet business demands and deliver seamless, lightning-fast experiences.

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