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 Hidden Forest 1 Nonfiction 28.24 € Orbit Orbit 1974-01-01 Frank Herbert, Ted Chiang, Ann Leckie frank@example.com, ted@example.com, ann@example.com ✗ — — — —
The Hidden Mirror 14 Nonfiction 22.58 € Ace Ace 1952-01-01 Ursula Le Guin, Kim Robinson ursula@example.com, kim@example.com ✗ — — — —
The Luminous City 45 Nonfiction 19.30 € Baen Baen 1983-01-01 Ann Leckie, Kim Robinson, Octavia Butler ann@example.com, kim@example.com, octavia@example.com ✗ — — — —
The Silent Station 60 Nonfiction 34.96 € DAW DAW 1971-01-01 Becky Chambers, Octavia Butler, Margaret Atwood becky@example.com, octavia@example.com, margaret@example.com ✗ — — — —
The Broken Station 61 Nonfiction 18.89 € DAW DAW 1971-01-01 Octavia Butler octavia@example.com ✗ — — — —
The Quiet Dune 62 Nonfiction 24.14 € Vintage Vintage 1954-01-01 Mary Shelley mary@example.com ✗ — — — —
The Hidden Ocean 65 Nonfiction 43.18 € Del Rey Del Rey 1977-01-01 Joe Abercrombie, Iain Banks, Ann Leckie joe@example.com, iain@example.com, ann@example.com ✗ — — — —
The Luminous Mirror 84 Nonfiction 19.40 € Ace Ace 1952-01-01 Kim Robinson, Ann Leckie kim@example.com, ann@example.com ✗ — — — —
The Luminous Ocean 108 Nonfiction 39.89 € Orbit Orbit 1974-01-01 Ted Chiang ted@example.com ✗ — — — —