Add NOT NULL requirement to columns on account_conversations (#33308)

db/migrate/20241213170027_add_not_null_to_account_conversation_account_column.rb

@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+class AddNotNullToAccountConversationAccountColumn < ActiveRecord::Migration[7.2]
+  def change
+    add_check_constraint :account_conversations, 'account_id IS NOT NULL', name: 'account_conversations_account_id_null', validate: false
+  end
+end

db/migrate/20241213170036_validate_not_null_to_account_conversation_account_column.rb

@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+class ValidateNotNullToAccountConversationAccountColumn < ActiveRecord::Migration[7.2]
+  def up
+    connection.execute(<<~SQL.squish)
+      DELETE FROM account_conversations
+      WHERE account_id IS NULL
+    SQL
+
+    validate_check_constraint :account_conversations, name: 'account_conversations_account_id_null'
+    change_column_null :account_conversations, :account_id, false
+    remove_check_constraint :account_conversations, name: 'account_conversations_account_id_null'
+  end
+
+  def down
+    add_check_constraint :account_conversations, 'account_id IS NOT NULL', name: 'account_conversations_account_id_null', validate: false
+    change_column_null :account_conversations, :account_id, true
+  end
+end

db/migrate/20241213170043_add_not_null_to_account_conversation_conversation_column.rb

@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+class AddNotNullToAccountConversationConversationColumn < ActiveRecord::Migration[7.2]
+  def change
+    add_check_constraint :account_conversations, 'conversation_id IS NOT NULL', name: 'account_conversations_conversation_id_null', validate: false
+  end
+end

db/migrate/20241213170053_validate_not_null_to_account_conversation_conversation_column.rb

@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+class ValidateNotNullToAccountConversationConversationColumn < ActiveRecord::Migration[7.2]
+  def up
+    connection.execute(<<~SQL.squish)
+      DELETE FROM account_conversations
+      WHERE conversation_id IS NULL
+    SQL
+
+    validate_check_constraint :account_conversations, name: 'account_conversations_conversation_id_null'
+    change_column_null :account_conversations, :conversation_id, false
+    remove_check_constraint :account_conversations, name: 'account_conversations_conversation_id_null'
+  end
+
+  def down
+    add_check_constraint :account_conversations, 'conversation_id IS NOT NULL', name: 'account_conversations_conversation_id_null', validate: false
+    change_column_null :account_conversations, :conversation_id, true
+  end
+end