Wizard Reference

The wizard subsystem builds multi-step flows — onboarding, checkout, multi-model create, branching questionnaires — as a single declarative class (< Plutonium::Wizard::Base). It orchestrates Plutonium's existing field DSL, form rendering, actions, and policies rather than inventing a parallel stack.

For a task-oriented walkthrough, start with the Wizards guide.

In this section

• DSL — every author-facing macro and accessor: step, review, using:, condition:, per-step on_submit/persist/on_rollback, execute, data/anchor/persisted.
• Anchoring & resume — running against an existing record (anchored / anchor), instance identity, and how a user resumes where they left off.
• Storage & config — enabling the subsystem, the plutonium_wizard_sessions table, config.wizards.*, encryption, and the cleanup SweepJob.
• Registration & launch — reaching a user: the wizard definition macro and portal-level register_wizard.
• One-time wizards — concurrency_key + one_time durable completion markers and the ensure_wizard_completed gate.

At a glance

Concept	Macro / accessor
Launch chrome	presents label:, icon:, description:
A screen	step :key, label:, condition:, using: do ... end
Branching	condition: -> { data.<step>.<field> ... } (subtractive, nil-safe)
Field reuse	using: Model, fields:/only:/except: (model only)
Terminal recap	review label:
Per-step write	on_submit { persist record; fail!(...) } + on_rollback
Commit	def execute → succeed(...) / failed(...) (use bang methods)
Existing record	anchored with: Model / anchored via: :method → anchor
Concurrency / resume	concurrency_key { … } (keyed row is the lock; tenant folded in)
Run once	concurrency_key { … } + one_time + ensure_wizard_completed
Cleanup TTL	cleanup_after <ttl> | :never (+ SweepJob)

Prerequisite

Wizards are opt-in. Set config.wizards.enabled = true and run rails db:migrate. See Storage & config.