add ck editor file upload endpoint

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.0].define(version: 2022_07_21_124944) do
+ActiveRecord::Schema[7.0].define(version: 2022_07_21_132556) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
 
@@ -28,6 +28,34 @@ ActiveRecord::Schema[7.0].define(version: 2022_07_21_124944) do
     t.index ["resource_type", "resource_id"], name: "index_active_admin_comments_on_resource"
   end
 
+  create_table "active_storage_attachments", force: :cascade do |t|
+    t.string "name", null: false
+    t.string "record_type", null: false
+    t.bigint "record_id", null: false
+    t.bigint "blob_id", null: false
+    t.datetime "created_at", null: false
+    t.index ["blob_id"], name: "index_active_storage_attachments_on_blob_id"
+    t.index ["record_type", "record_id", "name", "blob_id"], name: "index_active_storage_attachments_uniqueness", unique: true
+  end
+
+  create_table "active_storage_blobs", force: :cascade do |t|
+    t.string "key", null: false
+    t.string "filename", null: false
+    t.string "content_type"
+    t.text "metadata"
+    t.string "service_name", null: false
+    t.bigint "byte_size", null: false
+    t.string "checksum"
+    t.datetime "created_at", null: false
+    t.index ["key"], name: "index_active_storage_blobs_on_key", unique: true
+  end
+
+  create_table "active_storage_variant_records", force: :cascade do |t|
+    t.bigint "blob_id", null: false
+    t.string "variation_digest", null: false
+    t.index ["blob_id", "variation_digest"], name: "index_active_storage_variant_records_uniqueness", unique: true
+  end
+
   create_table "axes", force: :cascade do |t|
     t.string "name"
     t.datetime "created_at", null: false
@@ -42,6 +70,11 @@ ActiveRecord::Schema[7.0].define(version: 2022_07_21_124944) do
     t.index ["name"], name: "index_categories_on_name", unique: true
   end
 
+  create_table "ck_editor_uploads", force: :cascade do |t|
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+  end
+
   create_table "questions", force: :cascade do |t|
     t.bigint "user_id", null: false
     t.bigint "subject_id"
@@ -88,6 +121,8 @@ ActiveRecord::Schema[7.0].define(version: 2022_07_21_124944) do
     t.index ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true
   end
 
+  add_foreign_key "active_storage_attachments", "active_storage_blobs", column: "blob_id"
+  add_foreign_key "active_storage_variant_records", "active_storage_blobs", column: "blob_id"
   add_foreign_key "questions", "subjects"
   add_foreign_key "questions", "users"
   add_foreign_key "subjects", "axes"