# blessy9202133/loco_qcchecklist architecture

> Architecture diagram of the GitHub repository blessy9202133/loco_qcchecklist, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-09-27). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/blessy9202133/loco_qcchecklist
- Repository: https://github.com/blessy9202133/loco_qcchecklist

## Overview

This repository appears to be a PHP/MySQL locomotive inspection and reporting application. Users enter locomotive details, complete sectioned inspection observations, attach images, and save or update records; report pages support viewing and managing submitted reports. Separate account and admin pages handle login and user administration. The tree also indicates report generation, signature uploads, and timing checks. Source excerpts are partial and there is no README, so links for unsampled endpoints are limited to capabilities indicated by their filenames rather than assumed call chains.

Main entry points: [`script.js`](https://github.com/blessy9202133/loco_qcchecklist/blob/main/script.js) (Inspection interface), [`new_script.js`](https://github.com/blessy9202133/loco_qcchecklist/blob/main/new_script.js) (Observation editor), [`store_observation.php`](https://github.com/blessy9202133/loco_qcchecklist/blob/main/store_observation.php) (Save observations), [`upload.php`](https://github.com/blessy9202133/loco_qcchecklist/blob/main/upload.php) (Image uploads)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_inspection["Inspection workflow"]
  node_inspection_ui["Inspection interface<br/>[script.js]"]
  node_section_pages["Inspection sections<br/>[section1_0.php]"]
  node_observation_editor["Observation editor<br/>[new_script.js]"]
  node_save_observation["Save observations"]
  node_update_observations["Update observations"]
  node_image_upload["Image uploads<br/>[upload.php]"]
  node_timing_checks["Timing checks"]
end

subgraph group_reports["Reports"]
  node_report_list["Report listing<br/>[viewReports.php]"]
  node_report_generation["Generate report<br/>[generateReport.php]"]
  node_report_upload["Upload report<br/>[uploadReport.php]"]
  node_report_save["Save report<br/>[save_report.php]"]
  node_report_detail["Report details"]
end

subgraph group_accounts["Accounts"]
  node_login["Login<br/>[login.php]"]
  node_user_admin["User administration<br/>[view_users.php]"]
  node_user_create["Create user<br/>[create_user.php]"]
  node_user_edit["Edit user<br/>[edit_user.php]"]
end

subgraph group_backend["Backend and data"]
  node_database[("MySQL database")]
end

node_user(("User"))

node_user -->|"authenticates"| node_login
node_user -->|"enters inspection"| node_inspection_ui
node_inspection_ui -->|"displays sections"| node_section_pages
node_inspection_ui -->|"edits observations"| node_observation_editor
node_observation_editor -->|"submits observations"| node_save_observation
node_save_observation -->|"writes records"| node_database
node_update_observations -->|"updates records"| node_database
node_inspection_ui -->|"uploads images"| node_image_upload
node_image_upload -->|"stores image references"| node_database
node_user -->|"checks timings"| node_timing_checks
node_timing_checks -->|"reads timing data"| node_database
node_user -->|"views reports"| node_report_list
node_report_list -->|"queries reports"| node_database
node_user -->|"requests report"| node_report_generation
node_report_generation -->|"reads inspection data"| node_database
node_user -->|"uploads report"| node_report_upload
node_report_upload -->|"submits report data"| node_report_save
node_report_save -->|"stores report data"| node_database
node_user -->|"opens report"| node_report_detail
node_report_detail -->|"reads report details"| node_database
node_login -->|"checks credentials"| node_database
node_user -->|"manages users"| node_user_admin
node_user_admin -->|"reads users"| node_database
node_user_create -->|"creates account"| node_database
node_user_edit -->|"updates account"| node_database

click node_inspection_ui "https://github.com/blessy9202133/loco_qcchecklist/blob/main/script.js"
click node_section_pages "https://github.com/blessy9202133/loco_qcchecklist/blob/main/section1_0.php"
click node_observation_editor "https://github.com/blessy9202133/loco_qcchecklist/blob/main/new_script.js"
click node_save_observation "https://github.com/blessy9202133/loco_qcchecklist/blob/main/store_observation.php"
click node_update_observations "https://github.com/blessy9202133/loco_qcchecklist/blob/main/updateObservations.php"
click node_image_upload "https://github.com/blessy9202133/loco_qcchecklist/blob/main/upload.php"
click node_timing_checks "https://github.com/blessy9202133/loco_qcchecklist/blob/main/checkInitialTiming.php"
click node_report_list "https://github.com/blessy9202133/loco_qcchecklist/blob/main/viewReports.php"
click node_report_generation "https://github.com/blessy9202133/loco_qcchecklist/blob/main/generateReport.php"
click node_report_upload "https://github.com/blessy9202133/loco_qcchecklist/blob/main/uploadReport.php"
click node_report_save "https://github.com/blessy9202133/loco_qcchecklist/blob/main/save_report.php"
click node_report_detail "https://github.com/blessy9202133/loco_qcchecklist/blob/main/getReportDetails.php"
click node_login "https://github.com/blessy9202133/loco_qcchecklist/blob/main/login.php"
click node_user_admin "https://github.com/blessy9202133/loco_qcchecklist/blob/main/view_users.php"
click node_user_create "https://github.com/blessy9202133/loco_qcchecklist/blob/main/create_user.php"
click node_user_edit "https://github.com/blessy9202133/loco_qcchecklist/blob/main/edit_user.php"

classDef toneNeutral fill:#f8fafc,stroke:#334155,stroke-width:1.5px,color:#0f172a
classDef toneBlue fill:#dbeafe,stroke:#2563eb,stroke-width:1.5px,color:#172554
classDef toneAmber fill:#fef3c7,stroke:#d97706,stroke-width:1.5px,color:#78350f
classDef toneMint fill:#dcfce7,stroke:#16a34a,stroke-width:1.5px,color:#14532d
classDef toneRose fill:#ffe4e6,stroke:#e11d48,stroke-width:1.5px,color:#881337
classDef toneIndigo fill:#e0e7ff,stroke:#4f46e5,stroke-width:1.5px,color:#312e81
classDef toneTeal fill:#ccfbf1,stroke:#0f766e,stroke-width:1.5px,color:#134e4a
class node_inspection_ui,node_section_pages,node_observation_editor,node_save_observation,node_update_observations,node_image_upload,node_timing_checks,node_user toneBlue
class node_report_list,node_report_generation,node_report_upload,node_report_save,node_report_detail toneAmber
class node_login,node_user_admin,node_user_create,node_user_edit toneMint
class node_database toneRose
```

## Components

### Inspection workflow

- [Inspection interface](https://github.com/blessy9202133/loco_qcchecklist/blob/main/script.js): `script.js`
- [Inspection sections](https://github.com/blessy9202133/loco_qcchecklist/blob/main/section1_0.php): `section1_0.php`
- [Observation editor](https://github.com/blessy9202133/loco_qcchecklist/blob/main/new_script.js): `new_script.js`
- [Save observations](https://github.com/blessy9202133/loco_qcchecklist/blob/main/store_observation.php): `store_observation.php`
- [Update observations](https://github.com/blessy9202133/loco_qcchecklist/blob/main/updateObservations.php): `updateObservations.php`
- [Image uploads](https://github.com/blessy9202133/loco_qcchecklist/blob/main/upload.php): `upload.php`
- [Timing checks](https://github.com/blessy9202133/loco_qcchecklist/blob/main/checkInitialTiming.php): `checkInitialTiming.php`

### Reports

- [Report listing](https://github.com/blessy9202133/loco_qcchecklist/blob/main/viewReports.php): `viewReports.php`
- [Generate report](https://github.com/blessy9202133/loco_qcchecklist/blob/main/generateReport.php): `generateReport.php`
- [Upload report](https://github.com/blessy9202133/loco_qcchecklist/blob/main/uploadReport.php): `uploadReport.php`
- [Save report](https://github.com/blessy9202133/loco_qcchecklist/blob/main/save_report.php): `save_report.php`
- [Report details](https://github.com/blessy9202133/loco_qcchecklist/blob/main/getReportDetails.php): `getReportDetails.php`

### Accounts

- [Login](https://github.com/blessy9202133/loco_qcchecklist/blob/main/login.php): `login.php`
- [User administration](https://github.com/blessy9202133/loco_qcchecklist/blob/main/view_users.php): `view_users.php`
- [Create user](https://github.com/blessy9202133/loco_qcchecklist/blob/main/create_user.php): `create_user.php`
- [Edit user](https://github.com/blessy9202133/loco_qcchecklist/blob/main/edit_user.php): `edit_user.php`

### Backend and data

- **MySQL database**

### Other components

- **User**

## Connections

- User → Login: authenticates
- User → Inspection interface: enters inspection
- Inspection interface → Inspection sections: displays sections
- Inspection interface → Observation editor: edits observations
- Observation editor → Save observations: submits observations
- Save observations → MySQL database: writes records
- Update observations → MySQL database: updates records
- Inspection interface → Image uploads: uploads images
- Image uploads → MySQL database: stores image references
- User → Timing checks: checks timings
- Timing checks → MySQL database: reads timing data
- User → Report listing: views reports
- Report listing → MySQL database: queries reports
- User → Generate report: requests report
- Generate report → MySQL database: reads inspection data
- User → Upload report: uploads report
- Upload report → Save report: submits report data
- Save report → MySQL database: stores report data
- User → Report details: opens report
- Report details → MySQL database: reads report details
- Login → MySQL database: checks credentials
- User → User administration: manages users
- User administration → MySQL database: reads users
- Create user → MySQL database: creates account
- Edit user → MySQL database: updates account