Subdomain customizations field defaults to {}

@server/models/subdomain.rb

@@ -23,6 +23,8 @@ class Subdomain < ApplicationRecord
 
   scope :public_fields, -> { select(self.my_public_fields) }
 
+  before_validation :set_default_customizations
+
   def users(registered=true)
     qry = User
     if registered
@@ -125,6 +127,10 @@ def rename(new_name)
     self.save
   end
 
+  def set_default_customizations
+    self.customizations ||= {}
+  end
+
   def customization_json
     begin
       config = self.customizations || {}

db/migrate/20230729022044_change_default_json_value_subdomain_customizations.rb

@@ -0,0 +1,5 @@
+class ChangeDefaultJsonValueSubdomainCustomizations < ActiveRecord::Migration[6.1]
+  def change
+    Subdomain.where(customizations: nil).update_all(customizations: {}.to_json)
+  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.define(version: 2023_07_22_175101) do
+ActiveRecord::Schema.define(version: 2023_07_29_022044) do
 
   create_table "ahoy_events", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.bigint "subdomain_id"