Add basic column models and script to migrate

.claude/settings.local.json

@@ -1,10 +0,0 @@
-{
-  "permissions": {
-    "allow": [
-      "Bash(git merge:*)",
-      "Bash(git add:*)"
-    ],
-    "deny": [],
-    "ask": []
-  }
-}

app/controllers/cards/drops_controller.rb

@@ -41,7 +41,7 @@ class Cards::DropsController < ApplicationController
     end
 
     def render_column_replacement
-      columns = Cards::Columns.new(user_filtering: @user_filtering, page_size: CardsController::PAGE_SIZE)
+      columns = Cards::OldColumns.new(user_filtering: @user_filtering, page_size: CardsController::PAGE_SIZE)
       column = columns.public_send(@drop_target)
 
       if @drop_target == :doing && params[:stage_id].present?

app/controllers/cards_controller.rb

@@ -11,7 +11,7 @@ class CardsController < ApplicationController
   PAGE_SIZE = 25
 
   def index
-    @columns = Cards::Columns.new(user_filtering: @user_filtering, page_size: PAGE_SIZE)
+    @columns = Cards::OldColumns.new(user_filtering: @user_filtering, page_size: PAGE_SIZE)
 
     fresh_when etag: @columns
   end

app/models/card.rb

@@ -5,6 +5,7 @@ class Card < ApplicationRecord
 
   belongs_to :collection, touch: true
   belongs_to :creator, class_name: "User", default: -> { Current.user }
+  belongs_to :column, optional: true
 
   has_many :comments, dependent: :destroy
   has_one_attached :image, dependent: :purge_later

app/models/cards/columns/column.rb

@@ -1,4 +1,4 @@
-class Cards::Columns::Column
+class Cards::OldColumns::Column
   attr_reader :page, :filter, :user_filtering
 
   def initialize(page:, filter:, user_filtering:)

app/models/cards/old_columns.rb

@@ -1,4 +1,4 @@
-class Cards::Columns
+class Cards::OldColumns
   attr_reader :user_filtering, :page_size
 
   delegate :filter, to: :user_filtering

app/models/collection.rb

@@ -5,6 +5,7 @@ class Collection < ApplicationRecord
 
   has_rich_text :public_description
 
+  has_many :columns, dependent: :destroy
   has_many :cards, dependent: :destroy
   has_many :tags, -> { distinct }, through: :cards
   has_many :events

app/models/column.rb

@@ -0,0 +1,7 @@
+class Column < ApplicationRecord
+  belongs_to :collection
+  has_many :cards, dependent: :nullify
+
+  validates :name, presence: true
+  validates :color, presence: true
+end

db/migrate/20250924100149_create_columns_and_add_column_id_to_cards.rb

@@ -0,0 +1,12 @@
+class CreateColumnsAndAddColumnIdToCards < ActiveRecord::Migration[8.1]
+  def change
+    create_table :columns do |t|
+      t.string :name,  null: false
+      t.string :color, null: false
+      t.references :collection, null: false, foreign_key: true
+      t.timestamps
+    end
+
+    add_reference :cards, :column, foreign_key: true, index: true
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[8.1].define(version: 2025_09_17_064006) do
+ActiveRecord::Schema[8.1].define(version: 2025_09_24_100149) do
   create_table "accesses", force: :cascade do |t|
     t.datetime "accessed_at"
     t.integer "collection_id", null: false
@@ -133,6 +133,7 @@ ActiveRecord::Schema[8.1].define(version: 2025_09_17_064006) do
 
   create_table "cards", force: :cascade do |t|
     t.integer "collection_id", null: false
+    t.integer "column_id"
     t.datetime "created_at", null: false
     t.integer "creator_id", null: false
     t.date "due_on"
@@ -142,6 +143,7 @@ ActiveRecord::Schema[8.1].define(version: 2025_09_17_064006) do
     t.string "title"
     t.datetime "updated_at", null: false
     t.index ["collection_id"], name: "index_cards_on_collection_id"
+    t.index ["column_id"], name: "index_cards_on_column_id"
     t.index ["last_active_at", "status"], name: "index_cards_on_last_active_at_and_status"
     t.index ["stage_id"], name: "index_cards_on_stage_id"
   end
@@ -197,6 +199,15 @@ ActiveRecord::Schema[8.1].define(version: 2025_09_17_064006) do
     t.index ["filter_id"], name: "index_collections_filters_on_filter_id"
   end
 
+  create_table "columns", force: :cascade do |t|
+    t.integer "collection_id", null: false
+    t.string "color", null: false
+    t.datetime "created_at", null: false
+    t.string "name", null: false
+    t.datetime "updated_at", null: false
+    t.index ["collection_id"], name: "index_columns_on_collection_id"
+  end
+
   create_table "comments", force: :cascade do |t|
     t.integer "card_id", null: false
     t.datetime "created_at", null: false
@@ -508,11 +519,13 @@ ActiveRecord::Schema[8.1].define(version: 2025_09_17_064006) do
   add_foreign_key "ai_quotas", "users"
   add_foreign_key "card_activity_spikes", "cards"
   add_foreign_key "card_goldnesses", "cards"
+  add_foreign_key "cards", "columns"
   add_foreign_key "cards", "workflow_stages", column: "stage_id"
   add_foreign_key "closures", "cards"
   add_foreign_key "closures", "users"
   add_foreign_key "collection_publications", "collections"
   add_foreign_key "collections", "workflows"
+  add_foreign_key "columns", "collections"
   add_foreign_key "comments", "cards"
   add_foreign_key "conversation_messages", "conversations"
   add_foreign_key "conversations", "users"

db/schema_cache.yml

@@ -435,6 +435,16 @@ columns:
   - *9
   cards:
   - *24
+  - !ruby/object:ActiveRecord::ConnectionAdapters::SQLite3::Column
+    auto_increment:
+    name: column_id
+    cast_type: *3
+    sql_type_metadata: *4
+    'null': true
+    default:
+    default_function:
+    collation:
+    comment:
   - *5
   - &25 !ruby/object:ActiveRecord::ConnectionAdapters::SQLite3::Column
     auto_increment:
@@ -610,6 +620,22 @@ columns:
   collections_filters:
   - *24
   - *20
+  columns:
+  - *24
+  - !ruby/object:ActiveRecord::ConnectionAdapters::SQLite3::Column
+    auto_increment:
+    name: color
+    cast_type: *7
+    sql_type_metadata: *8
+    'null': false
+    default:
+    default_function:
+    collation:
+    comment:
+  - *5
+  - *6
+  - *10
+  - *9
   comments:
   - *23
   - *5
@@ -1495,6 +1521,7 @@ primary_keys:
   collection_publications: id
   collections: id
   collections_filters:
+  columns: id
   comments: id
   conversation_messages: id
   conversations: id
@@ -1549,6 +1576,7 @@ data_sources:
   collection_publications: true
   collections: true
   collections_filters: true
+  columns: true
   comments: true
   conversation_messages: true
   conversations: true
@@ -1989,6 +2017,22 @@ indexes:
     nulls_not_distinct:
     comment:
     valid: true
+  - !ruby/object:ActiveRecord::ConnectionAdapters::IndexDefinition
+    table: cards
+    name: index_cards_on_column_id
+    unique: false
+    columns:
+    - column_id
+    lengths: {}
+    orders: {}
+    opclasses: {}
+    where:
+    type:
+    using:
+    include:
+    nulls_not_distinct:
+    comment:
+    valid: true
   - !ruby/object:ActiveRecord::ConnectionAdapters::IndexDefinition
     table: cards
     name: index_cards_on_last_active_at_and_status
@@ -2205,6 +2249,23 @@ indexes:
     nulls_not_distinct:
     comment:
     valid: true
+  columns:
+  - !ruby/object:ActiveRecord::ConnectionAdapters::IndexDefinition
+    table: columns
+    name: index_columns_on_collection_id
+    unique: false
+    columns:
+    - collection_id
+    lengths: {}
+    orders: {}
+    opclasses: {}
+    where:
+    type:
+    using:
+    include:
+    nulls_not_distinct:
+    comment:
+    valid: true
   comments:
   - !ruby/object:ActiveRecord::ConnectionAdapters::IndexDefinition
     table: comments
@@ -3191,4 +3252,4 @@ indexes:
     comment:
     valid: true
   workflows: []
-version: 20250917064006
+version: 20250924100149

script/migrations/populate_columns_from_workflow_stages.rb

@@ -0,0 +1,40 @@
+#!/usr/bin/env ruby
+
+require_relative "../../config/environment"
+
+ApplicationRecord.with_each_tenant do |tenant|
+  puts "Processing tenant: #{tenant}"
+
+  Collection.find_each do |collection|
+    next unless collection.workflow.present?
+
+    # Map to track stage_id -> column
+    columns_by_stage = {}
+
+    # Create columns from workflow stages
+    collection.workflow.stages.find_each do |stage|
+      column = collection.columns.create!(
+        name: stage.name,
+        color: stage.color || Card::Colored::COLORS.first
+      )
+      columns_by_stage[stage] = column
+      puts "Created column '#{column.name}' for collection '#{collection.name}'"
+    end
+
+    # Associate cards with their corresponding columns based on stages
+    collection.cards.includes(:stage).find_each do |card|
+      next unless card.stage.present?
+
+      unless card.stage.workflow.collections.include?(collection)
+        puts "Corrupt data: the card with id #{card.id} has the stage #{card.stage.name} with id #{card.stage.id} that belongs to a workflow not asociated ot its collection"
+        next
+      end
+
+      stage = columns_by_stage[card.stage]
+      card.update!(column: stage)
+      puts "Associated card ##{card.id} with column '#{stage.name}'"
+    end
+  end
+end
+
+puts "Migration completed!"