volto-calendar-block (@kitconcept/volto-calendar-block)

A Volto add-on that provides an Event Calendar block for Plone sites. It queries Plone Event content types and renders them as a searchable, filterable calendar listing.

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Features

• Event listing block — Registers an eventCalendar block that fetches and displays Plone Event objects in a card-based layout.
• Date range picker — Built with react-aria-components, allows visitors to filter events by a start and end date range directly in the block.
• Search input — Optional text search that runs live or is triggered by a dedicated search button, depending on the block configuration.
• Facets — Supports configurable Volto search facets rendered alongside the results, allowing further filtering by any indexed field.
• Event cards — Each event is displayed as a card with a prominent date inset (day and month), supporting multi-day events with both start and end dates.
• Configurable sorting — Defaults to sorting by effective date descending; sorting is automatically adjusted when a text search is active.
• Headline — Optional configurable headline text rendered above the search controls.
• i18n ready — All strings are defined with react-intl for full internationalization support.

Installation

To install your project, you must choose the method appropriate to your version of Volto.

Volto 18 and later

Add @kitconcept/volto-calendar-block to your package.json:

"dependencies": {
    "@kitconcept/volto-calendar-block": "*"
}

Add @kitconcept/volto-calendar-block to your volto.config.js:

const addons = ['@kitconcept/volto-calendar-block'];

If this package provides a Volto theme, and you want to activate it, then add the following to your volto.config.js:

const theme = '@kitconcept/volto-calendar-block';

Volto 17 and earlier

Create a new Volto project (you can skip this step if you already have one):

npm install -g yo @plone/generator-volto
yo @plone/volto my-volto-project --addon @kitconcept/volto-calendar-block
cd my-volto-project

Add @kitconcept/volto-calendar-block to your package.json:

"addons": [
    "@kitconcept/volto-calendar-block"
],

"dependencies": {
    "@kitconcept/volto-calendar-block": "*"
}

Download and install the new add-on by running:

yarn install

Start volto with:

yarn start

Test installation

Visit http://localhost:3000/ in a browser, log in, and verify the Event Calendar block is available.

Development

The development of this add-on is done in isolation using a new approach using pnpm workspaces and latest mrs-developer and other Volto core improvements. For this reason, it only works with pnpm and Volto 18 (currently in alpha).

Prerequisites

• An operating system that runs all the requirements mentioned.
• nvm
• Node.js and pnpm 22
• Make
• Git
• Docker (optional)

Installation

1. Clone this repository, then change your working directory.

   git clone git@github.com:kitconcept/volto-calendar-block.git
   cd volto-calendar-block

2. Install this code base.

   make install

Make convenience commands

Run make help to list the available commands.

help                             Show this help
install                          Installs the add-on in a development environment
start                            Starts Volto, allowing reloading of the add-on during development
build                            Build a production bundle for distribution of the project with the add-on
i18n                             Sync i18n
ci-i18n                          Check if i18n is not synced
format                           Format codebase
lint                             Lint, or catch and remove problems, in code base
release                          Release the add-on on npmjs.org
release-dry-run                  Dry-run the release of the add-on on npmjs.org
test                             Run unit tests
ci-test                          Run unit tests in CI
backend-docker-start             Starts a Docker-based backend for development
storybook-start                  Start Storybook server on port 6006
storybook-build                  Build Storybook
acceptance-frontend-dev-start    Start acceptance frontend in development mode
acceptance-frontend-prod-start   Start acceptance frontend in production mode
acceptance-backend-start         Start backend acceptance server
ci-acceptance-backend-start      Start backend acceptance server in headless mode for CI
acceptance-test                  Start Cypress in interactive mode
ci-acceptance-test               Run cypress tests in headless mode for CI

Development environment set up

Install package requirements.

make install

Start developing

Start the backend.

make backend-docker-start

In a separate terminal session, start the frontend.

make start

Lint code

Run ESlint, Prettier, and Stylelint in analyze mode.

make lint

Format code

Run ESlint, Prettier, and Stylelint in fix mode.

make format

i18n

Extract the i18n messages to locales.

make i18n

Unit tests

Run unit tests.

make test

Run Cypress tests

Run each of these steps in separate terminal sessions.

In the first session, start the frontend in development mode.

make acceptance-frontend-dev-start

In the second session, start the backend acceptance server.

make acceptance-backend-start

In the third session, start the Cypress interactive test runner.

make acceptance-test

License

The project is licensed under the MIT license.

Credits and Acknowledgements

Crafted with care by kitconcept GmbH. Generated using Cookieplone (0.9.10) and cookieplone-templates (888ff69) on 2025-11-03 16:30:46.747555. A special thanks to all contributors and supporters!