Stock Exchanges with seed (#1351)

* Stock Exchanges with seed

* Run the seed file on migration

* Fix for enum column

db/migrate/20241022170439_create_stock_exchanges.rb

@@ -0,0 +1,30 @@
+class CreateStockExchanges < ActiveRecord::Migration[7.2]
+  def change
+    create_table :stock_exchanges, id: :uuid do |t|
+      t.string :name, null: false
+      t.string :acronym
+      t.string :mic, null: false
+      t.string :country, null: false
+      t.string :country_code, null: false
+      t.string :city, null: false
+      t.string :website
+      t.string :timezone_name, null: false
+      t.string :timezone_abbr, null: false
+      t.string :timezone_abbr_dst
+      t.string :currency_code, null: false
+      t.string :currency_symbol, null: false
+      t.string :currency_name, null: false
+      t.timestamps
+    end
+
+    add_index :stock_exchanges, :country
+    add_index :stock_exchanges, :country_code
+    add_index :stock_exchanges, :currency_code
+
+    reversible do |dir|
+      dir.up do
+        load Rails.root.join('db/seeds/exchanges.rb')
+      end
+    end
+  end
+end

db/migrate/20241022192319_fix_user_role_column_type.rb

@@ -0,0 +1,16 @@
+class FixUserRoleColumnType < ActiveRecord::Migration[7.2]
+  def change
+    # First remove any constraints/references to the enum
+    execute <<-SQL
+      ALTER TABLE users ALTER COLUMN role TYPE varchar USING role::text;
+    SQL
+
+    # Then set the default
+    change_column_default :users, :role, 'member'
+
+    # Finally drop the enum type
+    execute <<-SQL
+      DROP TYPE IF EXISTS user_role;
+    SQL
+  end
+end