模拟器游戏

書名： Redmine Plugin Extension and Development
作者名： Alex Bevilacqua
本章字?jǐn)?shù)： 137字
更新時間： 2021-07-16 12:20:25

Controller hooks

Controller hooks allow custom functionality to be injected into an existing process. A normal use-case for this type of hook is to perform some custom validation on the context object provided to the callback.

In /path/to/redmine/app/models/issue.rb, there is a hook registered for controller_issues_edit_before_save. In order to take advantage of this hook, we would have to provide our own callback function. This can be done as follows:

module Knowledgebase
  module Hooks
    class ControllerIssuesEditBeforeSaveHook < Redmine::Hook::ViewListener
      def controller_issues_edit_before_save(context={})
        if context[:params] && context[:params][:issue]
          if User.current.allowed_to?(:assign_article_to_issue, context[:issue].project)
            if context[:params][:issue][:article_id].present?
              article = KbArticle.find_by_id(context[:params][:issue][:article_id])
              if article.category.project == context[:issue].project
                context[:issue].article = article
              end
            else
              context[:issue].article = nil
            end
          end
        end
        return ''
      end
    end
  end
end

Once registered, this hook will check to see whether the current user has permission to attach a knowledgebase article to an issue before saving the issue.

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Redmine Plugin Extension and Development

Controller hooks