LiveAdmin

An admin UI for Phoenix applications built on Phoenix LiveView and Ecto.

Significant features:

• First class support for multi tenant applications via Ecto's prefix option
• Overridable views and API
• Easily add custom actions at the schema and record level
• Ability to edit (nested) embedded schemas
• i18n via Gettext

Installation

First, ensure your Phoenix app has been configured to use LiveView.

Add to your app's deps:

{:live_admin, "~> 0.11.3"}

Configure a module to act as a LiveAdmin resource:

defmodule MyApp.MyResource do
  use LiveAdmin.Resource, schema: MyApp.Schema
end

Note: if you use an Ecto schema you can omit the `schema' option.

In your Phoenix router, inside a scope configured to run LiveView (:browser if you followed the default installation), add the resource to a LiveAdmin instance:

import LiveAdmin.Router

scope "/" do
  pipe_through: :browser

  live_admin "/my_admin" do
    admin_resource "/my_schemas", MyApp.MyResource
  end
end

Finally, tell LiveAdmin what Ecto repo to use to run queries in your runtime.ex:

config :live_admin, ecto_repo: MyApp.Repo

That's it, now an admin UI for MyApp.Schema will be available at /my_admin/my_schemas.

Configuration

One of the main goals of LiveAdmin is to require as little config as possible. It should work out of the box, with only the above, for the vast majority of common app admin needs.

However, if you want to customize the behavior of one or more resources, including how records are rendered or changes are validated, or to add custom behaviors, there are a variety of configuration options available. This includes component overrides if you would like to completely control every aspect of a particular resource view, like the edit form. For a complete list of options, see the LiveAdmin.Resource docs.

For additional convenience and control, configuration in LiveAdmin can be set at 3 different levels. From most specific to most general, they are resource, admin instance, and global.

For concrete examples of the various config options and to see them in action, consult the development app.

Resource

The second argument passed to use LiveAdmin.Resource will configure only that specific resource, in any LiveView it is used. If the module is not an Ecto schema, the :schema option must be passed. If you would like the same schema to behave differently in different LiveAdmin instances, or different routes in the same instance, you must create multiple resource modules to contain that configuration.

Admin instance

The second argument passed to live_admin will configure defaults for all resources in the group that do not specify the same configuration. Currently only component overrides and the repo can be configured at this level.

Global

All resource configuration options can also be set in the LiveAdmin app runtime config. This will set a global default to apply to all resources unless overridden in their individual config, or the LiveAdmin instance.

Additionally, the following options can only be set at the global level:

• css_overrides - a binary or MFA identifying a function that returns CSS to be appended to app css
• session_store - a module implementing the LiveAdmin.Session.Store behavior, used to persist session data
• gettext_backend - a module implementing the Gettext API that will be used for translations

Multi tenancy

To enable Multi tenant support, simply implement a prefixes/0 function in your Ecto Repo module that returns a list of prefixes. A dropdown will be added to the top nav bar that will allow you to switch between tenants.

i18n

LiveAdmin wraps all static strings in the UI with Gettext calls, but currently it does not provide any locales by default. To enable i18n, implement a locales/0 function returning a list of binary locale names on your Gettext Backend module.

Unfortunately it is not currently possible to use Gettext's utilities to automatically extract the pot files so you will need to do this manually. To avoid conflicts with your own app's translations, it is recommended to use a separate Gettext backend for LiveAdmin.

Development environment

This repo has been configured to run the application in Docker using Compose.

The Phoenix app is running the app service, so all mix command should be run there. Examples:

• docker compose run web mix test

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