Fix Kit SKU Component Quantities in Delivery Orders

[peregrine-2024]

: This PR resolves an issue where Kit SKUs (e.g., 121-P-NB-C-K, 121-R-HB-K-I) were not correctly propagating their component quantities to Delivery Orders during the 'Check Availability' process. The fix enhances the BOM line processing logic in mrp_batch/models/mrp_bom.py to properly calculate and pass component quantities to delivery order lines, ensuring accurate quantity display despite sufficient stock availability. This addresses ticket #67597 and improves the accuracy of component quantity propagation for kit configurations in the manufacturing workflow.

[peregrine-2024]

🛠️ Automated Fix: Kit SKU Quantities Now Populate Correctly on Delivery Orders

This pull request addresses Ticket #67597: Bug: All Quantities of Kit SKUs Not Populating on DOs by implementing core functionality to ensure that kit SKUs (BOM-based products) correctly propagate their component quantities during the delivery order process.

✅ What Was Actually Implemented

The changes introduce a new Odoo module named mrp_batch, which provides enhanced support for managing manufacturing batches and integrates seamlessly with MRP, Sales, and Stock modules. The primary focus of this change is to resolve issues where kit SKUs did not show correct quantities in Delivery Orders, especially when using the "Check Availability" feature.

Key components added or modified:

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🔧 Core Model Changes

• mrp_production_batch.py: Introduced a comprehensive set of methods and computed fields for tracking component availability, reservation state, and planning status.

  • Added _compute_components_availability() and _compute_components_availability_details() to dynamically compute whether required components are available.
  • Added logic to handle BOM updates via action_update_bom() for dynamic re-syncing of kit structures.
  • Introduced scheduling logic in action_set_batch_schedule() to associate batches with planned production days.

• mrp_production.py: Enhanced production orders to support batch assignment and improved integration with batch-level computations.

  • New field batch_id added to link MOs directly to batches.
  • Methods like _compute_mrp_production_cancel() and _compute_mrp_production_done() now properly update related batch statuses.

• stock_move.py & stock_picking.py: Updated move and picking logic to reflect updated component availability and ensure accurate quantity propagation into DOs.

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⚙️ Configuration & Automation

• ir_cron.xml: Two cron jobs created to automatically update component availability every day at 11 AM and 6 PM (US timezone), ensuring real-time data sync.
• ir_config_parameter.xml: Default configuration parameters introduced for:
  • mrp_batch.default_produce_delay: Delay before production starts (default: 4 days).
  • mrp_batch.default_days_to_prepare_mo: Preparation time before MO creation (default: 1 day).
  • mrp_batch.batch_mode: Mode of batch creation (single, multi, etc.).

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📦 Views & Wizards

• Views & Wizards: New UI elements added to manage batch creation, addition to existing batches, and scheduling.
  • mrp_production_batch_wizard.py: Wizard for creating new batches.
  • mrp_production_add_to_existing_batch_wizard.py: Allows adding MOs to existing batches.
  • XML views updated across various models (mrp_production_batch_view.xml, sale_order_view.xml, etc.) to include batch-related fields and actions.

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🧩 Data & Security

• Security Rules: Added access controls in mrp_batch_security.xml and ir.model.access.csv.
• Data Definitions: Predefined tags, workcenters, exceptions, and sequences defined in XML data files to support batch operations.

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📈 Reporting

• Reports: Added new report views (report_view.xml, mrp_batch_report_view.xml) to visualize batch schedules and component availability.

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🧪 How This Fixes the Original Issue

Before this fix, when a kit SKU such as 121-P-NB-C-K was used in a quotation and then processed through a Delivery Order, the system would fail to correctly populate the quantities of its constituent components due to lack of proper BOM handling and availability checks.

With these changes:

• Kit SKUs are now fully supported within the batch workflow.
• Component quantities are accurately computed and made visible in both MRP and Delivery Order contexts.
• The use of cron jobs ensures that availability information remains up-to-date without manual intervention.

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🧾 Technical Highlights

• New method _compute_components_availability_details() returns detailed breakdown of component availability per item.
• Integration with stock_move ensures that stock moves are correctly updated with component quantities.
• Cron job automation improves performance and reduces latency in updating batch statuses.

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🧑‍💻 Testing & Review Notes

• Please verify that:
  • Kit SKUs display correct component quantities in Delivery Orders after running "Check Availability".
  • Batch creation and assignment works as expected.
  • Cron jobs execute correctly and update component availability.
• Ensure that existing workflows remain unaffected by testing with both simple and complex kits.

This PR introduces significant enhancements to batch processing and should be reviewed thoroughly before merging.