Database Login Module - Server — mod_database_login

Server logic for database authentication with language selection

Usage

mod_database_login_server(
  id,
  allow_public = FALSE,
  allow_offline = FALSE,
  intro = NULL
)

Arguments

id

Module namespace ID

allow_public

Logical. Allow connecting through the read-only public account? Defaults to `FALSE`. Must match the value given to [mod_database_login_ui()].

allow_offline

Logical. Allow connecting in offline mode, against the cached taxonomic backbone and no database? Defaults to `FALSE`. Must match the value given to [mod_database_login_ui()].

intro

Optional named list describing the app the visitor has landed on, shown in place of the generic connection header. Use `title` for the app name and `body` for a character vector of paragraphs. Both are treated as *English translation keys*, not final text, so they are re-translated when the visitor flips the language toggle - add each string to `inst/translations/translation.json` or it renders in English only. Defaults to `NULL`, which keeps the generic header.

This only matters for apps reachable by URL, where the login screen is the landing page and the generic header is the sole thing a first-time visitor reads. Apps launched from an R console already have the user's intent.

Unlike `allow_public` and `allow_offline`, this belongs to the server alone: the header is a `uiOutput` placeholder, so the UI function needs no matching argument.

Value

A reactive list containing: - authenticated: Reactive logical indicating connection status - pool_main: Main database connection pool (NULL if not connected) - pool_taxa: Taxa database connection pool (NULL if not connected) - language: Reactive string returning selected language ("en" or "fr")