Improve id copying with field name, fix requires

config.rb

@@ -2,12 +2,13 @@
 HOST = 'https://host/redmine/'
 API_KEY = 'someapikey'
 
-COPY_ISSUE_IDS = false
-
 # User conversion from Redmine => Gitlab, e.g. {15 => 1, 19 => 2}
 USER_CONVERSION = {}
 DEFAULT_ACCOUNT = 1
 
+PROJECT_CONVERSION = {'example' => 'my_namespace/my_project'}
+COPY_ISSUE_ID_FIELD = nil # e.g. :project_issue_id
+
 # Custom features in Redmine (id)
 CUSTOM_FEATURES = []
 

migrate.rb

@@ -1,11 +1,9 @@
 #!/usr/bin/env ruby
 
 require 'fileutils'
-require 'faraday'
-require 'json'
 require 'gitlab'
-require_relative 'config'
 require_relative 'redmine'
+require_relative 'config'
 
 NilClass.class_eval <<EOC
 def name
@@ -140,7 +138,7 @@ def create_event(record, user_id, status, date, attributes = {})
         issue.inspect
         new_issue = Issue.new
         new_issue.title = issue.subject
-        new_issue.iid = issue.id if COPY_ISSUE_IDS
+        new_issue.iid = issue.send(COPY_ISSUE_ID_FIELD) unless COPY_ISSUE_ID_FIELD.nil?
         new_issue.state = state
 
         new_issue.author_id = gl_user_id

redmine.rb

@@ -1,3 +1,6 @@
+require 'faraday'
+require 'json'
+
 module Redmine
   def self.connection
     raise 'must define a Host' if HOST.nil?