Column picker

How this page is built the gem renders it — this is all you write

Pass picker: true and a gear appears in the header row: the user ticks which columns are shown and (with the optional crud-columns Stimulus controller) drags to reorder them. It submits ?cols[]= to this same URL — like the sort links and filter row — so it opens and works without JavaScript. The picker groups every column by its source model (Pipedrive-style): own columns under this model, association and path columns under the model they reach — publisher.founded_on under Publisher, authors.email under Author. The selection is always intersected with the permitted set, so a forged ?cols= can only hide or reorder, never reveal one.

app/models/book.rb 
fieldset :picker, %i[title genre price publisher publisher.name
                     publisher.founded_on authors.name authors.email active]   # path columns: assoc.attr
app/views/columns/index.html.erb 
<%= crud_collection @books, fieldset: :picker,
                     extra_columns: @columns,   <%# declared + path + dynamic — all pickable %>
                     picker: true %>            <%# gear + read ?cols= (picked_columns: :auto) %>

Read more: Column picker  ·  Path columns

Reset
Title Genre Price Publisher Publisher › Name Publisher › Founded on Authors › Name Authors › Email Active Shelf Weight Signed Acquired
Show columns
  • Book
  • Publisher
  • Author
Reset
Reset
The Ancient Winter 3 Fiction 24.81 € DAW DAW 1971-01-01 Joe Abercrombie joe@example.com ✗ — — — —
The Quiet Forest 8 Fiction 11.98 € Ace Ace 1952-01-01 Becky Chambers becky@example.com ✗ — — — —
The Broken Engine 9 Fiction 32.99 € Gollancz Gollancz 1927-01-01 Ted Chiang, Ann Leckie, Frank Herbert ted@example.com, ann@example.com, frank@example.com ✗ — — — —
The Endless Station 13 Fiction 27.05 € DAW DAW 1971-01-01 Ann Leckie, Martha Wells, Ursula Le Guin ann@example.com, martha@example.com, ursula@example.com ✗ — — — —
The Broken Empire 48 Fiction 30.49 € Orbit Orbit 1974-01-01 Ted Chiang, Ann Leckie ted@example.com, ann@example.com ✗ — — — —
The Burning Archive 100 Fiction 24.48 € — — — Joe Abercrombie joe@example.com ✗ — — — —
The Dispossessed Door 103 Fiction 30.10 € Ace Ace 1952-01-01 Iain Banks, Frank Herbert iain@example.com, frank@example.com ✗ — — — —
The Silent Engine 115 Fiction 24.38 € — — — Octavia Butler, Margaret Atwood, Ursula Le Guin octavia@example.com, margaret@example.com, ursula@example.com ✗ — — — —
The Burning Empire 118 Fiction 17.01 € DAW DAW 1971-01-01 Kim Robinson, Mary Shelley, Margaret Atwood kim@example.com, mary@example.com, margaret@example.com ✗ — — — —
The Ancient Archive 119 Fiction 21.49 € DAW DAW 1971-01-01 Octavia Butler, Mary Shelley octavia@example.com, mary@example.com ✗ — — — —