# diganta-dm/gest-book architecture

> Architecture diagram of the GitHub repository diganta-dm/gest-book, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-06-24). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/diganta-dm/gest-book
- Repository: https://github.com/diganta-dm/gest-book

## Overview

1. **Project type**
   - This is a **Contao CMS bundle** written in PHP, not a standalone app. It plugs into Contao/Symfony as a reusable extension named **GestBook**.

2. **Core feature**
   - The bundle implements a **simple guestbook/comment system** with two main concepts: a **guestbook entry** and associated **comments**.
   - The README indicates the UI is styled with **Bootstrap**, so the frontend presentation is part of the bundle, not left to the host project.

3. **Bundle integration boundary**
   - `src/GestbookBundle.php` is the bundle entry point.
   - `src/ContaoManager/Plugin.php` is the Contao Manager integration hook, which makes the bundle discoverable and installable inside a Contao project.

4. **Dependency injection / service wiring**
   - `src/DependencyInjection/GestbookBundleExtension.php` is the Symfony/Contao DI extension.
   - `src/Resources/config/services.yml` is where services are registered and wired, so the business classes are likely injected rather than instantiated directly.

5. **Domain model layer**
   - `src/Model/GestBookModel.php` and `src/Model/GestBookCommentModel.php` represent the persisted data objects for the guestbook and its comments.
   - These model classes form the data boundary between Contao’s database layer and the rendering/backend logic.

6. **Backend schema and configuration**
   - `src/Resources/contao/dca/tl_gestbook.php` and `src/Resources/contao/dca/tl_gestbook_comment.php` define the **Contao DCA** for the two database tables.
   - This is the main backend administration layer: field definitions, relations, validation, and how editors manage guestbooks/comments in the Contao backend.
   - `src/Resources/contao/config/config.php` likely contains bundle-specific Contao configuration and registration hooks.

7. **Frontend rendering component**
   - `src/FeCte/GestBook.php` appears to be the frontend-facing component responsible for rendering the guestbook view or content element.
   - This is where data from the model layer is assembled for display, likely including the guestbook description plus its comments.

8. **Templates and presentation**
   - `src/Resources/contao/templates/gest-book.html5` is the HTML5 template used to render the frontend output.
   - This is the presentation boundary: PHP/controller logic supplies data, and the template produces markup styled by Bootstrap.

9. **Routing / request entry points**
   - `src/Resources/config/routes.yaml` suggests the bundle exposes one or more Symfony/Contao routes or route-based endpoints.
   - Even if the primary usage is via Contao content elements, this file indicates there may be a routed entry point or backend/admin integration path.

10. **Static assets**
   - `src/Resources/public/css` and `src/Resources/public/js` contain the bundle’s frontend assets.
   - These assets support the Bootstrap-based UI/UX and are published into the host application’s public asset pipeline.

11. **End-to-end data flow**
   - Contao backend editors configure records through the DCA-backed tables.
   - The model layer reads those records.
   - The frontend component in `FeCte/GestBook.php` assembles the data.
   - `gest-book.html5` renders the final markup, with CSS/JS enhancing the UI.

12. **Architecture summary for diagramming**
   - Think of the repository as three layers around Contao: **administration/data definition** (DCA + models), **runtime rendering** (frontend component + template), and **bundle integration** (bundle class, DI extension, Contao Manager plugin).
   - There are no signs of external services or separate infrastructure; the whole system is self-contained within the Contao/PHP application and its database.

Main entry points: [`src/FeCte/GestBook.php`](https://github.com/diganta-dm/gest-book/blob/main/src/FeCte/GestBook.php) (Guestbook view), [`src/Resources/contao/templates/gest-book.html5`](https://github.com/diganta-dm/gest-book/blob/main/src/Resources/contao/templates/gest-book.html5) (Guestbook template), [`src/Model/GestBookCommentModel.php`](https://github.com/diganta-dm/gest-book/blob/main/src/Model/GestBookCommentModel.php) (Comment model), [`src/Model/GestBookModel.php`](https://github.com/diganta-dm/gest-book/blob/main/src/Model/GestBookModel.php) (Guestbook model)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_integration["Integration"]
  node_src_gestbook_bundle["Gestbook bundle<br/>[GestbookBundle.php]"]
  node_src_contao_manager_plugin["Manager plugin<br/>contao plugin<br/>[Plugin.php]"]
  node_src_di_extension["DI extension<br/>service extension"]
  node_src_services_yaml["Services<br/>service config<br/>[services.yml]"]
  node_src_routes_yaml["Routes<br/>route config<br/>[routes.yaml]"]
  node_src_contao_config["Contao config<br/>[config.php]"]
end

subgraph group_domain["Domain & Admin"]
  node_src_model_gestbook[("Guestbook model<br/>[GestBookModel.php]")]
  node_src_model_comment[("Comment model")]
  node_src_dca_gestbook["Guestbook DCA<br/>contao dca<br/>[tl_gestbook.php]"]
  node_src_dca_comment["Comment DCA<br/>contao dca"]
end

subgraph group_runtime["Runtime"]
  node_src_fecte_gestbook["Guestbook view<br/>frontend component<br/>[GestBook.php]"]
end

subgraph group_presentation["Presentation"]
  node_src_template["Guestbook template<br/>html5 template<br/>[gest-book.html5]"]
  node_src_public_css["CSS assets<br/>public css"]
  node_src_public_js["JS assets<br/>public js"]
end

node_src_contao_manager_plugin -->|"installs"| node_src_gestbook_bundle
node_src_di_extension -->|"loads"| node_src_services_yaml
node_src_gestbook_bundle -->|"boots"| node_src_di_extension
node_src_contao_config -->|"registers"| node_src_dca_gestbook
node_src_contao_config -->|"registers"| node_src_dca_comment
node_src_dca_gestbook -->|"maps to"| node_src_model_gestbook
node_src_dca_comment -->|"maps to"| node_src_model_comment
node_src_model_comment -->|"belongs to"| node_src_model_gestbook
node_src_fecte_gestbook -->|"reads"| node_src_model_gestbook
node_src_fecte_gestbook -->|"reads"| node_src_model_comment
node_src_fecte_gestbook -->|"renders"| node_src_template
node_src_template -->|"uses"| node_src_public_css
node_src_template -->|"uses"| node_src_public_js
node_src_routes_yaml -->|"exposes"| node_src_fecte_gestbook

click node_src_gestbook_bundle "https://github.com/diganta-dm/gest-book/blob/main/src/GestbookBundle.php"
click node_src_contao_manager_plugin "https://github.com/diganta-dm/gest-book/blob/main/src/ContaoManager/Plugin.php"
click node_src_di_extension "https://github.com/diganta-dm/gest-book/blob/main/src/DependencyInjection/GestbookBundleExtension.php"
click node_src_services_yaml "https://github.com/diganta-dm/gest-book/blob/main/src/Resources/config/services.yml"
click node_src_routes_yaml "https://github.com/diganta-dm/gest-book/blob/main/src/Resources/config/routes.yaml"
click node_src_contao_config "https://github.com/diganta-dm/gest-book/blob/main/src/Resources/contao/config/config.php"
click node_src_model_gestbook "https://github.com/diganta-dm/gest-book/blob/main/src/Model/GestBookModel.php"
click node_src_model_comment "https://github.com/diganta-dm/gest-book/blob/main/src/Model/GestBookCommentModel.php"
click node_src_dca_gestbook "https://github.com/diganta-dm/gest-book/blob/main/src/Resources/contao/dca/tl_gestbook.php"
click node_src_dca_comment "https://github.com/diganta-dm/gest-book/blob/main/src/Resources/contao/dca/tl_gestbook_comment.php"
click node_src_fecte_gestbook "https://github.com/diganta-dm/gest-book/blob/main/src/FeCte/GestBook.php"
click node_src_template "https://github.com/diganta-dm/gest-book/blob/main/src/Resources/contao/templates/gest-book.html5"
click node_src_public_css "https://github.com/diganta-dm/gest-book/tree/main/src/Resources/public/css"
click node_src_public_js "https://github.com/diganta-dm/gest-book/tree/main/src/Resources/public/js"

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_src_gestbook_bundle,node_src_contao_manager_plugin,node_src_di_extension,node_src_services_yaml,node_src_routes_yaml,node_src_contao_config toneBlue
class node_src_model_gestbook,node_src_model_comment,node_src_dca_gestbook,node_src_dca_comment toneAmber
class node_src_fecte_gestbook toneMint
class node_src_template,node_src_public_css,node_src_public_js toneRose
```

## Components

### Integration

Bundle entry points and service wiring for Contao/Symfony.

- [Gestbook bundle](https://github.com/diganta-dm/gest-book/blob/main/src/GestbookBundle.php): bundle · Symfony/Contao bundle entry point. · `src/GestbookBundle.php`
- [Manager plugin](https://github.com/diganta-dm/gest-book/blob/main/src/ContaoManager/Plugin.php): contao plugin · Contao Manager integration hook for installation and discovery. · `src/ContaoManager/Plugin.php`
- [DI extension](https://github.com/diganta-dm/gest-book/blob/main/src/DependencyInjection/GestbookBundleExtension.php): service extension · Registers bundle configuration and services. · `src/DependencyInjection/GestbookBundleExtension.php`
- [Services](https://github.com/diganta-dm/gest-book/blob/main/src/Resources/config/services.yml): service config · Service definitions and wiring for bundle classes. · `src/Resources/config/services.yml`
- [Routes](https://github.com/diganta-dm/gest-book/blob/main/src/Resources/config/routes.yaml): route config · Symfony/Contao route configuration for bundle entry points. · `src/Resources/config/routes.yaml`
- [Contao config](https://github.com/diganta-dm/gest-book/blob/main/src/Resources/contao/config/config.php): contao config · Bundle-specific Contao configuration and registration hooks. · `src/Resources/contao/config/config.php`

### Domain & Admin

Persisted models and Contao backend definitions for guestbooks and comments.

- [Guestbook model](https://github.com/diganta-dm/gest-book/blob/main/src/Model/GestBookModel.php): model · Persisted guestbook record boundary. · `src/Model/GestBookModel.php`
- [Comment model](https://github.com/diganta-dm/gest-book/blob/main/src/Model/GestBookCommentModel.php): model · Persisted comment record boundary. · `src/Model/GestBookCommentModel.php`
- [Guestbook DCA](https://github.com/diganta-dm/gest-book/blob/main/src/Resources/contao/dca/tl_gestbook.php): contao dca · Backend table definition and editor fields for guestbooks. · `src/Resources/contao/dca/tl_gestbook.php`
- [Comment DCA](https://github.com/diganta-dm/gest-book/blob/main/src/Resources/contao/dca/tl_gestbook_comment.php): contao dca · Backend table definition and editor fields for comments. · `src/Resources/contao/dca/tl_gestbook_comment.php`

### Runtime

Frontend component that assembles guestbook data for rendering.

- [Guestbook view](https://github.com/diganta-dm/gest-book/blob/main/src/FeCte/GestBook.php): frontend component · Builds the guestbook output from model data. · `src/FeCte/GestBook.php`

### Presentation

Template and public assets used to render the guestbook UI.

- [Guestbook template](https://github.com/diganta-dm/gest-book/blob/main/src/Resources/contao/templates/gest-book.html5): html5 template · Renders the frontend guestbook markup. · `src/Resources/contao/templates/gest-book.html5`
- [CSS assets](https://github.com/diganta-dm/gest-book/tree/main/src/Resources/public/css): public css · Published styles for the guestbook UI. · `src/Resources/public/css`
- [JS assets](https://github.com/diganta-dm/gest-book/tree/main/src/Resources/public/js): public js · Published browser behavior for the guestbook UI. · `src/Resources/public/js`

## Connections

- Manager plugin → Gestbook bundle: installs · Registers the bundle with Contao Manager.
- DI extension → Services: loads · Loads service definitions for the bundle.
- Gestbook bundle → DI extension: boots · Provides the bundle extension to Symfony.
- Contao config → Guestbook DCA: registers · Connects backend configuration to the guestbook table.
- Contao config → Comment DCA: registers · Connects backend configuration to the comment table.
- Guestbook DCA → Guestbook model: maps to · Defines how guestbook records are edited and stored.
- Comment DCA → Comment model: maps to · Defines how comment records are edited and stored.
- Comment model → Guestbook model: belongs to · Comments are associated with a guestbook entry.
- Guestbook view → Guestbook model: reads · Loads guestbook data for rendering.
- Guestbook view → Comment model: reads · Loads associated comments for rendering.
- Guestbook view → Guestbook template: renders · Passes assembled data to the HTML5 template.
- Guestbook template → CSS assets: uses · Relies on published styles for presentation.
- Guestbook template → JS assets: uses · Relies on published scripts for behavior.
- Routes → Guestbook view: exposes · Makes the frontend component reachable through routing or integration.