add actiontext

app/assets/stylesheets/actiontext.css

@@ -0,0 +1,31 @@
+/*
+ * Provides a drop-in pointer for the default Trix stylesheet that will format the toolbar and
+ * the trix-editor content (whether displayed or under editing). Feel free to incorporate this
+ * inclusion directly in any other asset bundle and remove this file.
+ *
+ *= require trix
+*/
+
+/*
+ * We need to override trix.css’s image gallery styles to accommodate the
+ * <action-text-attachment> element we wrap around attachments. Otherwise,
+ * images in galleries will be squished by the max-width: 33%; rule.
+*/
+.trix-content .attachment-gallery > action-text-attachment,
+.trix-content .attachment-gallery > .attachment {
+  flex: 1 0 33%;
+  padding: 0 0.5em;
+  max-width: 33%;
+}
+
+.trix-content .attachment-gallery.attachment-gallery--2 > action-text-attachment,
+.trix-content .attachment-gallery.attachment-gallery--2 > .attachment, .trix-content .attachment-gallery.attachment-gallery--4 > action-text-attachment,
+.trix-content .attachment-gallery.attachment-gallery--4 > .attachment {
+  flex-basis: 50%;
+  max-width: 50%;
+}
+
+.trix-content action-text-attachment .attachment {
+  padding: 0 !important;
+  max-width: 100% !important;
+}

app/assets/stylesheets/application.css

@@ -7,4 +7,5 @@
 *= require list.unlist
 *= require list.missing
 *= require recurring_select
+*= require actiontext
 */

app/javascript/application.js

@@ -1 +1,3 @@
 // Configure your import map in config/importmap.rb. Read more: https://github.com/rails/importmap-rails
+import "trix"
+import "@rails/actiontext"

app/views/active_storage/blobs/_blob.html.erb

@@ -0,0 +1,14 @@
+<figure class="attachment attachment--<%= blob.representable? ? "preview" : "file" %> attachment--<%= blob.filename.extension %>">
+  <% if blob.representable? %>
+    <%= image_tag blob.representation(resize_to_limit: local_assigns[:in_gallery] ? [ 800, 600 ] : [ 1024, 768 ]) %>
+  <% end %>
+
+  <figcaption class="attachment__caption">
+    <% if caption = blob.try(:caption) %>
+      <%= caption %>
+    <% else %>
+      <span class="attachment__name"><%= blob.filename %></span>
+      <span class="attachment__size"><%= number_to_human_size blob.byte_size %></span>
+    <% end %>
+  </figcaption>
+</figure>

app/views/layouts/action_text/contents/_content.html.erb

@@ -0,0 +1,3 @@
+<div class="trix-content">
+  <%= yield -%>
+</div>

config/importmap.rb

@@ -1,2 +1,4 @@
 # Pin npm packages by running ./bin/importmap
 pin "application", preload: true
+pin "trix"
+pin "@rails/actiontext", to: "actiontext.js"

db/migrate/20230209105256_create_action_text_tables.action_text.rb

@@ -0,0 +1,26 @@
+# This migration comes from action_text (originally 20180528164100)
+class CreateActionTextTables < ActiveRecord::Migration[6.0]
+  def change
+    # Use Active Record's configured type for primary and foreign keys
+    primary_key_type, foreign_key_type = primary_and_foreign_key_types
+
+    create_table :action_text_rich_texts, id: primary_key_type do |t|
+      t.string     :name, null: false
+      t.text       :body, size: :long
+      t.references :record, null: false, polymorphic: true, index: false, type: foreign_key_type
+
+      t.timestamps
+
+      t.index [ :record_type, :record_id, :name ], name: "index_action_text_rich_texts_uniqueness", unique: true
+    end
+  end
+
+  private
+    def primary_and_foreign_key_types
+      config = Rails.configuration.generators
+      setting = config.options[config.orm][:primary_key_type]
+      primary_key_type = setting || :primary_key
+      foreign_key_type = setting || :bigint
+      [primary_key_type, foreign_key_type]
+    end
+end

db/schema.rb

@@ -10,7 +10,17 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.0].define(version: 2023_01_06_144440) do
+ActiveRecord::Schema[7.0].define(version: 2023_02_09_105256) do
+  create_table "action_text_rich_texts", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
+    t.string "name", null: false
+    t.text "body", size: :long
+    t.string "record_type", null: false
+    t.bigint "record_id", null: false
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.index ["record_type", "record_id", "name"], name: "index_action_text_rich_texts_uniqueness", unique: true
+  end
+
   create_table "active_storage_attachments", id: :integer, charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.string "name", null: false
     t.string "record_type", null: false