Sample Rerun — Backend

All server-side rerun logic lives across two repositories: crelio-app (API, models, business logic) and interfacing (instrument communication, rerun qualification). Data is stored in DocumentDB (MongoDB) for transactional rerun records and MySQL for report-level state (sampleRedrawFlag), with Redis caching for fast rerun number lookups.

What this section covers

Page	Covers
Data Model	`SampleRerun` and `SampleRerunValues` models, `sampleRedrawFlag` on `LabReportRelation`, `ReportFormat.meta` fields, Redis cache, Activity log constants
API Reference	Six endpoints under `/sample-rerun/` — fetch, receive values, request, confirm, cancel, auto-check

Architecture

Key files

crelio-app

File	Role
`report/models/sample_rerun.py`	`SampleRerun` model — rerun transactions, cache, auto-rerun condition evaluation
`report/models/sample_rerun_values.py`	`SampleRerunValues` model — rerun parameter values, close/cleanup
`report/models/lab_report_relation.py`	`LabReportRelation.sampleRedrawFlag` field
`report/models/report_format.py`	`auto_rerun_allowed`, `auto_rerun_parameter_condition`, range properties
`report/views/sample_rerun.py`	5 view classes — `SampleRerunView`, `AutoSampleRerunCheck`, `SampleRerunConfirmView`, `SampleRerunCancelView`, `SampleRerunRequestView`
`report/urls.py`	URL patterns under `sample-rerun/` prefix
`core/utils/activity_log/__init__.py`	Activity log constants: `RERUN_VALUES_RECEIVED` (979), `RERUN_VALUES_CONFIRMED` (980), `RERUN_REQUESTED` (981), `RERUN_FAILED` (984), `RERUN_CANCELLED` (985)
`interfacing/proxies/device_lab_report.py`	`DeviceLabReportRelation` — waiting list rerun integration, `get_rerun_format_machine_names_map()`
`interfacing/models/device_results_validation.py`	`is_rerun` flag handling in device result payloads
`interfacing/models/device_format_mapping.py`	`manual_rerun` meta field persistence during device format mapping

interfacing (Node.js)

File	Role
`src/main/tasks/sample_rerun.js`	`qualify_rerun()`, `process_reports_for_rerun()` — rerun detection logic
`src/main/interfacing/device_parser.js`	Invokes `process_reports_for_rerun()` during device data parsing
`src/main/models/report_values.js`	`machine_triggered_rerun` field; sets `is_rerun` and `rerun_number` on payload
`src/main/models/waiting_list.js`	`rerunNumber` field; handles `rerun_number_changed` during updates

Overview