fix: change issues priority id default value

app/controllers/pull_requests_controller.rb

@@ -288,7 +288,7 @@ class PullRequestsController < ApplicationController
       assigned_to_id: params[:assigned_to_id],
       fixed_version_id: params[:fixed_version_id],
       issue_tags_value: params[:issue_tag_ids].present? ? params[:issue_tag_ids].join(",") : "",
-      priority_id: params[:priority_id] || "2",
+      priority_id: params[:priority_id],
       issue_classify: "pull_request",
       issue_type: params[:issue_type] || "1",
       tracker_id: 2,

app/controllers/repositories_controller.rb

@@ -340,7 +340,7 @@ class RepositoriesController < ApplicationController
         issue_type: "1",
         tracker_id: 2,
         status_id: 1,
-        priority_id: params[:priority_id] || "2"
+        priority_id: params[:priority_id]
       }
       @pull_issue = Issue.new(issue_params)
       if @pull_issue.save!

app/models/issue.rb

@@ -11,7 +11,7 @@
 #  category_id          :integer
 #  status_id            :integer          not null
 #  assigned_to_id       :integer
-#  priority_id          :integer          not null
+#  priority_id          :integer
 #  fixed_version_id     :integer
 #  author_id            :integer          not null
 #  created_on           :datetime

db/migrate/20211129025810_change_issues_priority_id_default.rb

@@ -0,0 +1,5 @@
+class ChangeIssuesPriorityIdDefault < ActiveRecord::Migration[5.2]
+  def change
+    change_column_null :issues, :priority_id, true
+  end
+end