I cannot create new issue through with REST API - ruby

Question

I'm troubled with redmine.
When I create new issue with Rest API(from Microsoft Excel), Internal Error 500 happened.
Seeing from production.log, "NoMethodError" is happened (see below message)
Started POST "/redmine/issues.xml?key=XXXXXXX" for XX.XX.XX.XXX at 2016-05-30 14:44:10 +0900
Processing by IssuesController#create as XML Parameters: {"issue"=>`
{"project_id"=>"mt001", "subject"=>"TEST_AI", "tracker_id"=>"6",
"category_id"=>"136", "assigned_to_id"=>"4", "fixed_version_id"=>"93",
"priority_id"=>"2", "parent_issue_id"=>nil,
"start_date"=>"2016-05-30", "due_date"=>"2016-06-01",
"description"=>"Redmine TEST AI", "status_id"=>"1"},
"key"=>"XXXXXXX(hidden for security"}
Current user: user1 (id=65)
Completed 500 Internal Server Error in 367ms (ActiveRecord: 19.9ms)
NoMethodError (undefined method `shared_versions' for nil:NilClass):
app/models/issue.rb:823:in `assignable_versions'
app/models/issue.rb:643:in `validate_issue'
app/controllers/issues_controller.rb:141:in `create'
lib/redmine/sudo_mode.rb:63:in `sudo_mode'
So, I tried to create new issew using web browser (IE11).
The ticket was created normally. Here is production.log.
Started POST "/redmine/projects/mt001/issues" for XX.XX.XX.XXX at 2016-05-30 14:58:23 +0900
Processing by IssuesController#create as HTML
Parameters: {"utf8"=>"✓", "authenticity_token"=>"QF1BA5MgwysJsAiFfT/h95DeZ/VgzSGOnryR6xUn4mmWpf7EZ8XFJqpaye/ZLXrKR/wV00dKOz8KbhP94VcUyg==", "form_update_triggered_by"=>"", "issue"=>{"tracker_id"=>"6", "subject"=>"Test2", "description"=>"This is test", "status_id"=>"1", "priority_id"=>"2", "assigned_to_id"=>"4", "category_id"=>"132", "fixed_version_id"=>"127", "parent_issue_id"=>"", "start_date"=>"2016-05-30", "due_date"=>"2016-06-03", "custom_field_values"=>{"12"=>"", "41"=>""}}, "was_default_status"=>"1", "commit"=>"create", "project_id"=>"mt001"}
Current user: user1 (id=65)
Rendered mailer/_issue.text.erb (7.1ms)
Rendered mailer/issue_add.text.erb within layouts/mailer (9.8ms)
Rendered mailer/_issue.html.erb (3.0ms)
Rendered mailer/issue_add.html.erb within layouts/mailer (5.1ms)
Redirected to http://mydepartment.co.jp/redmine/issues/1717
Completed 302 Found in 3697ms (ActiveRecord: 130.3ms)
I already tried to migrate, clear cache.
What should I do next.
Here is my environment on RHEL7.2
Environment:
Redmine version 3.2.0.stable
Ruby version 2.2.4-p230 (2015-12-16) [x86_64-linux]
Rails version 4.2.5
Environment production
Database adapter Mysql2
SCM:
Subversion 1.7.14
Git 1.8.3.1
Filesystem
Redmine plugins:
redmine_export_with_journals 0.0.8
redmine_importer 1.2.2
redmine_local_avatars 1.0.0
redmine_xlsx_format_issue_exporter 0.1.2
sidebar_hide 0.0.7
Here is assinable_versions source-code
# Versions that the issue can be assigned to
def assignable_versions
return #assignable_versions if #assignable_versions
versions = project.shared_versions.open.to_a #Here is line823
if fixed_version
if fixed_version_id_changed?
# nothing to do
elsif project_id_changed?
if project.shared_versions.include?(fixed_version)
versions << fixed_version
end
else
versions << fixed_version
end
end
#assignable_versions = versions.uniq.sort
end

Answer 1

The error is occurring because project is nil and you are trying to call nil.shared_versions. So change the if condition:
if !project.shared_versions.nil?
versions = project.shared_versions.open.to_a
end
to as follows:
versions = project.shared_versions.open.to_a unless project.nil?
This will resolve the 'undefined method' error.

Answer 2

I've solved problem.
There is some difference of REST process.
At least redmine 2.4.4, I can use both project_id = identifier and project_id = project_id for issue create.
But, redmine 3.x, I can only use project_id = project_id for issue create.