NoMethodError: undefined method `latest_submission' for nil:NilClass

[sentry-io]

Sentry Issue: AGROPORTAL-UI-6M

NoMethodError: undefined method `latest_submission' for nil:NilClass

    @submission = @ontology.explore.latest_submission(include: 'uriRegexPattern,preferredNamespaceUri')
                                   ^^^^^^^^^^^^^^^^^^
  app/controllers/concepts_controller.rb:86:in `show_tree'
    @submission = @ontology.explore.latest_submission(include: 'uriRegexPattern,preferredNamespaceUri')
...
(92 additional frame(s) were not displayed)

This issue was automatically created by Sentry via UI issues

[imadbourouche]

we have to handle the nil ontology in the show_tree method

 def show_tree
    @ontology = LinkedData::Client::Models::Ontology.find_by_acronym(params[:ontology]).first
    @submission = @ontology.explore.latest_submission(include: 'uriRegexPattern,preferredNamespaceUri')
    if @ontology.nil? || @ontology.errors
      ontology_not_found(params[:ontology])
    else
      get_class(params) # application_controller

      not_found(t('concepts.missing_roots')) if @root.nil?

      render inline: helpers.concepts_tree_component(@root, @concept,
                                                     @ontology.acronym, Array(params[:concept_schemes]&.split(',')), request_lang,
                                                     id: 'concepts_tree_view', auto_click: params[:auto_click] || true)
    end
  end