# vin0414/cvsu-ccc-rotc-unit-portal architecture

> Architecture diagram of the GitHub repository vin0414/cvsu-ccc-rotc-unit-portal, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-11-11). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/vin0414/cvsu-ccc-rotc-unit-portal
- Repository: https://github.com/vin0414/cvsu-ccc-rotc-unit-portal

## Overview

This is the CodeIgniter 4 PHP full-stack web framework, distributed with a small example application. The web workflow begins at the public entry point, builds a request, matches configured routes, invokes a controller, and produces an HTTP response. The framework also supplies persistence, sessions, filtering, views, REST support, caching, and CLI commands. Some runtime files and integrations were not sampled, so uncertain links are omitted or marked dashed with no evidence path.

Main entry points: [`system/CodeIgniter.php`](https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/system/CodeIgniter.php) (Framework Engine), [`app/Controllers/Home.php`](https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/app/Controllers/Home.php) (Home Controller), [`public/index.php`](https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/public/index.php) (Public Entry), [`system/Router/Router.php`](https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/system/Router/Router.php) (Router)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_runtime["Web Runtime"]
  node_entry["Public Entry<br/>[index.php]"]
  node_engine["Framework Engine<br/>[CodeIgniter.php]"]
  node_incoming["Incoming Request"]
  node_router["Router<br/>[Router.php]"]
  node_basecontroller["Controller Base<br/>[Controller.php]"]
end

subgraph group_app["Application Routing"]
  node_routes["App Routes<br/>[Routes.php]"]
  node_home["Home Controller<br/>[Home.php]"]
end

subgraph group_data["Data and State"]
  node_models["Application Models"]
  node_database["Database Layer<br/>[Database.php]"]
  node_dbquery["Query Builder<br/>[Query.php]"]
  node_session["Session Service<br/>[Session.php]"]
end

subgraph group_http["HTTP Features"]
  node_filters["Request Filters<br/>[Filters.php]"]
  node_response["HTTP Response"]
  node_views["View Rendering<br/>[View.php]"]
  node_rest["REST Resources"]
end

subgraph group_tools["Framework Services"]
  node_cache["Response Cache<br/>[ResponseCache.php]"]
  node_cli["CLI Commands<br/>[Commands.php]"]
  node_services["Service Registry<br/>[Services.php]"]
end

node_visitor(("Web Client"))

node_visitor -.->|"sends request"| node_entry
node_entry -.->|"starts runtime"| node_engine
node_engine -->|"builds request"| node_incoming
node_engine -->|"dispatches routing"| node_router
node_router -->|"uses route config"| node_routes
node_routes -->|"routes to"| node_home
node_home -.->|"extends"| node_basecontroller
node_engine -->|"runs filters"| node_filters
node_engine -->|"returns response"| node_response
node_home -->|"queries models"| node_models
node_models -.->|"uses database"| node_database
node_database -.->|"creates queries"| node_dbquery
node_home -->|"reads session"| node_session
node_home -->|"renders views"| node_views
node_rest -->|"formats responses"| node_response
node_engine -->|"checks response cache"| node_cache
node_cli -->|"loads locator"| node_services
node_engine -.->|"uses services"| node_services

click node_entry "https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/public/index.php"
click node_engine "https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/system/CodeIgniter.php"
click node_incoming "https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/system/HTTP/IncomingRequest.php"
click node_router "https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/system/Router/Router.php"
click node_routes "https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/app/Config/Routes.php"
click node_home "https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/app/Controllers/Home.php"
click node_basecontroller "https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/system/Controller.php"
click node_models "https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/tree/main/app/Models"
click node_database "https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/system/Database/Database.php"
click node_dbquery "https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/system/Database/Query.php"
click node_session "https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/system/Session/Session.php"
click node_filters "https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/system/Filters/Filters.php"
click node_response "https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/system/HTTP/ResponseInterface.php"
click node_views "https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/system/Config/View.php"
click node_rest "https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/system/RESTful/ResourceController.php"
click node_cache "https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/system/Cache/ResponseCache.php"
click node_cli "https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/system/CLI/Commands.php"
click node_services "https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/system/Config/Services.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_entry,node_engine,node_incoming,node_router,node_basecontroller,node_visitor toneBlue
class node_routes,node_home toneAmber
class node_models,node_database,node_dbquery,node_session toneMint
class node_filters,node_response,node_views,node_rest toneRose
class node_cache,node_cli,node_services toneIndigo
```

## Components

### Web Runtime

- [Public Entry](https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/public/index.php): `public/index.php`
- [Framework Engine](https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/system/CodeIgniter.php): `system/CodeIgniter.php`
- [Incoming Request](https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/system/HTTP/IncomingRequest.php): `system/HTTP/IncomingRequest.php`
- [Router](https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/system/Router/Router.php): `system/Router/Router.php`
- [Controller Base](https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/system/Controller.php): `system/Controller.php`

### Application Routing

- [App Routes](https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/app/Config/Routes.php): `app/Config/Routes.php`
- [Home Controller](https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/app/Controllers/Home.php): `app/Controllers/Home.php`

### Data and State

- [Application Models](https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/tree/main/app/Models): `app/Models`
- [Database Layer](https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/system/Database/Database.php): `system/Database/Database.php`
- [Query Builder](https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/system/Database/Query.php): `system/Database/Query.php`
- [Session Service](https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/system/Session/Session.php): `system/Session/Session.php`

### HTTP Features

- [Request Filters](https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/system/Filters/Filters.php): `system/Filters/Filters.php`
- [HTTP Response](https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/system/HTTP/ResponseInterface.php): `system/HTTP/ResponseInterface.php`
- [View Rendering](https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/system/Config/View.php): `system/Config/View.php`
- [REST Resources](https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/system/RESTful/ResourceController.php): `system/RESTful/ResourceController.php`

### Framework Services

- [Response Cache](https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/system/Cache/ResponseCache.php): `system/Cache/ResponseCache.php`
- [CLI Commands](https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/system/CLI/Commands.php): `system/CLI/Commands.php`
- [Service Registry](https://github.com/vin0414/cvsu-ccc-rotc-unit-portal/blob/main/system/Config/Services.php): `system/Config/Services.php`

### Other components

- **Web Client**

## Connections

- Web Client → Public Entry: sends request
- Public Entry → Framework Engine: starts runtime
- Framework Engine → Incoming Request: builds request (evidence: `system/CodeIgniter.php`)
- Framework Engine → Router: dispatches routing (evidence: `system/CodeIgniter.php`)
- Router → App Routes: uses route config (evidence: `system/Router/Router.php`)
- App Routes → Home Controller: routes to (evidence: `app/Config/Routes.php`)
- Home Controller → Controller Base: extends
- Framework Engine → Request Filters: runs filters (evidence: `system/CodeIgniter.php`)
- Framework Engine → HTTP Response: returns response (evidence: `system/CodeIgniter.php`)
- Home Controller → Application Models: queries models (evidence: `app/Controllers/Home.php`)
- Application Models → Database Layer: uses database
- Database Layer → Query Builder: creates queries
- Home Controller → Session Service: reads session (evidence: `app/Controllers/Home.php`)
- Home Controller → View Rendering: renders views (evidence: `app/Controllers/Home.php`)
- REST Resources → HTTP Response: formats responses (evidence: `system/RESTful/ResourceController.php`)
- Framework Engine → Response Cache: checks response cache (evidence: `system/CodeIgniter.php`)
- CLI Commands → Service Registry: loads locator (evidence: `system/CLI/Commands.php`)
- Framework Engine → Service Registry: uses services