Added prefilters to help locate 422 on issue creation.

This is an effort to figure out why I get 422 Unprocessable Entity errors sometimes when creating new issues.

config/locales/en.yml

@@ -99,4 +99,6 @@ en:
   notice_invoice_not_found: "Invoice not found"
   notice_forbidden: "You do not have permission to access this resource"
   notice_issue_not_found: "Issue not found"
-  customer_details: "Customer Details"
+  customer_details: "Customer Details"
+  notice_error_project_nil: "The issue's project is nil."
+  notice_error_project_nil: "The issue's tracker is nil."

lib/redmine_qbo/patches/issues_controller_patch.rb

@@ -22,11 +22,36 @@ module RedmineQbo
       end
 
       def self.included(base)
-
         base.class_eval do
           helper Helper
+          before_action :error_check, only: [:create]
+          before_action :reload_new_issue, only: [:new]
+        end
+      end
+
+      # Check for errors when creating an issue. 
+      # If the project or tracker is not set, reload the new issue form with an error message.
+      def error_check
+        logger.info "Creating issue for: #{@issue.project}"
+        update_issue_from_params
+        if @issue.project.nil?
+          flash[:error] = t :notice_error_project_nil 
+          render :new, status: :unprocessable_entity
         end
 
+        if @issue.project.nil?
+          flash[:error] = t :notice_error_tracker_nil 
+          render :new, status: :unprocessable_entity
+        end
+      end
+
+      # Reload the new issue form with a default tracker and project if not set. 
+      # This is needed to prevent errors when creating an issue without selecting a project or tracker.
+      def reload_new_issue
+        logger.info "Reloading new #{@issue.tracker} issue for: #{@project}"
+        @issue.tracker ||= Tracker.first
+        @project ||= Project.first
+        logger.info "Reloaded new #{@issue.tracker} issue for: #{@project}"
       end
 
     end