Rewrite import feature (#21054)

db/migrate/20230330135507_create_bulk_imports.rb

@@ -0,0 +1,22 @@
+# frozen_string_literal: true
+
+class CreateBulkImports < ActiveRecord::Migration[6.1]
+  def change
+    create_table :bulk_imports do |t|
+      t.integer :type, null: false
+      t.integer :state, null: false
+      t.integer :total_items, null: false, default: 0
+      t.integer :imported_items, null: false, default: 0
+      t.integer :processed_items, null: false, default: 0
+      t.datetime :finished_at
+      t.boolean :overwrite, null: false, default: false
+      t.boolean :likely_mismatched, null: false, default: false
+      t.string :original_filename, null: false, default: ''
+      t.references :account, null: false, foreign_key: { on_delete: :cascade }
+
+      t.timestamps
+    end
+
+    add_index :bulk_imports, [:id], name: :index_bulk_imports_unconfirmed, where: 'state = 0'
+  end
+end

db/migrate/20230330140036_create_bulk_import_rows.rb

@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+class CreateBulkImportRows < ActiveRecord::Migration[6.1]
+  def change
+    create_table :bulk_import_rows do |t|
+      t.references :bulk_import, null: false, foreign_key: { on_delete: :cascade }
+      t.jsonb :data
+
+      t.timestamps
+    end
+  end
+end