API endpoint for voting

drzraf · June 19, 2017, 3:03pm

That would open the vote feature to mobile user, external app’, …

The API seems to lack a “votes” definition
The Poll::vote and add_anonymous_votes function is already there, but lack a controller but since votes are a plugin, the issue may have to be that plugins get the ability open API endpoints

Falco · June 19, 2017, 3:09pm

Everything in Discourse has API support:

Vote:

curl 'https://meta.discourse.org/voting/vote' -X POST --data 'topic_id=51247'

Unvote:

curl 'https://meta.discourse.org/voting/unvote' -X POST --data 'topic_id=51247'

drzraf · June 19, 2017, 3:23pm

how, thanks! (I couldn’t find it inside http://docs.discourse.org/ [which does not work with FF btw])
How does is apply/not apply to anonymous users?
Will that call require user’s token if anonymous voting is not allowed?

Falco · June 19, 2017, 3:26pm

Vote is a plugin, docs are only for core.

OMG, just saw this now. You created a post on the #plugin:voting category and are asking questions linking the poll plugin code. My last reply was about the #plugin:voting plugin, please elucidate me.

blake · June 19, 2017, 4:00pm

I’m able to load http://docs.discourse.org in firefox 54.0 on Windows just fine and I know it worked on earlier versions too. Is it really not working for you in firefox?

blake · June 19, 2017, 4:21pm

The controller is inside of plugin.rb here:

github.com

discourse/discourse/blob/main/plugins/poll/plugin.rb#L181


      
          end
          
          add_to_class(:topic_view, :polls) do
            @polls ||=
              begin
                polls = {}
          
                post_with_polls =
                  @post_custom_fields.each_with_object([]) do |fields, obj|
                    obj << fields[0] if fields[1][DiscoursePoll::HAS_POLLS]
                  end
          
                if post_with_polls.present?
                  Poll
                    .where(post_id: post_with_polls)
                    .each do |p|
                      polls[p.post_id] ||= []
                      polls[p.post_id] << p
                    end
                end

And the routes for it are here:

github.com

discourse/discourse/blob/main/plugins/poll/plugin.rb#L272


      
          # frozen_string_literal: true
          
          # name: poll
          # about: Official poll plugin for Discourse
          # version: 1.0
          # authors: Vikhyat Korrapati (vikhyat), Régis Hanol (zogstrip)
          # url: https://github.com/discourse/discourse/tree/main/plugins/poll
          
          register_asset "stylesheets/common/poll.scss"
          register_asset "stylesheets/common/poll-ui-builder.scss"
          register_asset "stylesheets/desktop/poll-ui-builder.scss", :desktop
          register_asset "stylesheets/common/poll-breakdown.scss"
          
          register_svg_icon "far fa-check-square"
          
          enabled_site_setting :poll_enabled
          hide_plugin
          
          after_initialize do
            module ::DiscoursePoll
              PLUGIN_NAME ||= "poll"
              DATA_PREFIX ||= "data-poll-"
              HAS_POLLS ||= "has_polls"
              DEFAULT_POLL_NAME ||= "poll"
          
              class Engine < ::Rails::Engine
                engine_name PLUGIN_NAME
                isolate_namespace DiscoursePoll
              end
          
              class Error < StandardError
              end
            end
          
            require_relative "app/controllers/polls_controller"
            require_relative "app/models/poll_option"
            require_relative "app/models/poll_vote"
            require_relative "app/models/poll"
            require_relative "app/serializers/poll_option_serializer"
            require_relative "app/serializers/poll_serializer"
            require_relative "jobs/regular/close_poll"
            require_relative "lib/poll"
            require_relative "lib/polls_updater"
            require_relative "lib/polls_validator"
            require_relative "lib/post_validator"
            require_relative "lib/post_extension"
            require_relative "lib/user_extension"
          
            DiscoursePoll::Engine.routes.draw do
              put "/vote" => "polls#vote"
              delete "/vote" => "polls#remove_vote"
              put "/toggle_status" => "polls#toggle_status"
              get "/voters" => "polls#voters"
              get "/grouped_poll_results" => "polls#grouped_poll_results"
            end
          
            Discourse::Application.routes.append { mount ::DiscoursePoll::Engine, at: "/polls" }
          
            allow_new_queued_post_payload_attribute("is_poll")
            register_post_custom_field_type(DiscoursePoll::HAS_POLLS, :boolean)
            topic_view_post_custom_fields_allowlister { [DiscoursePoll::HAS_POLLS] }
          
            reloadable_patch do
              Post.prepend(DiscoursePoll::PostExtension)
              User.prepend(DiscoursePoll::UserExtension)
            end
          
            validate(:post, :validate_polls) do |force = nil|
              return unless self.raw_changed? || force
          
              validator = DiscoursePoll::PollsValidator.new(self)
              return unless (polls = validator.validate_polls)
              return if polls.blank? && self.id.blank?
          
              if polls.present?
                validator = DiscoursePoll::PostValidator.new(self)
                return unless validator.validate_post
              end
          
              # are we updating a post?
              if self.id.present?
                return if polls.blank? && ::Poll.where(post: self).empty?
          
                DiscoursePoll::PollsUpdater.update(self, polls)
              else
                self.extracted_polls = polls
              end
          
              true
            end
          
            NewPostManager.add_handler(1) do |manager|
              post = Post.new(raw: manager.args[:raw])
          
              if !DiscoursePoll::PollsValidator.new(post).validate_polls
                result = NewPostResult.new(:poll, false)
          
                post.errors.full_messages.each { |message| result.add_error(message) }
          
                result
              else
                manager.args["is_poll"] = true
                nil
              end
            end
          
            on(:approved_post) do |queued_post, created_post|
              created_post.validate_polls(true) if queued_post.payload["is_poll"]
            end
          
            on(:reduce_cooked) do |fragment, post|
              if post.nil? || post.trashed?
                fragment.css(".poll, [data-poll-name]").each(&:remove)
              else
                post_url = post.full_url
                fragment
                  .css(".poll, [data-poll-name]")
                  .each do |poll|
                    poll.replace "<p><a href='#{post_url}'>#{I18n.t("poll.email.link_to_poll")}</a></p>"
                  end
              end
            end
          
            on(:reduce_excerpt) do |doc, options|
              post = options[:post]
          
              replacement =
                (
                  if post&.url.present?
                    "<a href='#{UrlHelper.normalized_encode(post.url)}'>#{I18n.t("poll.poll")}</a>"
                  else
                    I18n.t("poll.poll")
                  end
                )
          
              doc.css("div.poll").each { |poll| poll.replace(replacement) }
            end
          
            on(:post_created) do |post, _opts, user|
              guardian = Guardian.new(user)
              DiscoursePoll::Poll.schedule_jobs(post)
          
              next if post.is_first_post?
              next if post.custom_fields[DiscoursePoll::HAS_POLLS].blank?
          
              polls =
                ActiveModel::ArraySerializer.new(
                  post.polls,
                  each_serializer: PollSerializer,
                  root: false,
                  scope: guardian,
                ).as_json
              post.publish_message!("/polls/#{post.topic_id}", post_id: post.id, polls: polls)
            end
          
            on(:merging_users) do |source_user, target_user|
              DB.exec(<<-SQL, source_user_id: source_user.id, target_user_id: target_user.id)
                DELETE FROM poll_votes
                WHERE user_id = :source_user_id
                AND EXISTS (
                  SELECT 1
                  FROM poll_votes
                  WHERE user_id = :target_user_id
                    AND poll_votes.poll_id = poll_votes.poll_id
                );
          
                UPDATE poll_votes
                SET user_id = :target_user_id
                WHERE user_id = :source_user_id;
              SQL
            end
          
            add_to_class(:topic_view, :polls) do
              @polls ||=
                begin
                  polls = {}
          
                  post_with_polls =
                    @post_custom_fields.each_with_object([]) do |fields, obj|
                      obj << fields[0] if fields[1][DiscoursePoll::HAS_POLLS]
                    end
          
                  if post_with_polls.present?
                    Poll
                      .where(post_id: post_with_polls)
                      .each do |p|
                        polls[p.post_id] ||= []
                        polls[p.post_id] << p
                      end
                  end
          
                  polls
                end
            end
          
            add_to_serializer(:current_user, :can_create_poll) do
              scope.user&.staff? || scope.user&.in_any_groups?(SiteSetting.poll_create_allowed_groups_map)
            end
          
            add_to_class(PostSerializer, :preloaded_polls) do
              @preloaded_polls ||=
                if @topic_view.present?
                  @topic_view.polls[object.id]
                else
                  Poll.includes(:poll_options).where(post: object)
                end
            end
          
            add_to_serializer(:post, :polls, include_condition: -> { preloaded_polls.present? }) do
              preloaded_polls.map { |p| PollSerializer.new(p, root: false, scope: self.scope) }
            end
          
            add_to_serializer(
              :post,
              :polls_votes,
              include_condition: -> do
                scope.user&.id.present? && preloaded_polls.present? &&
                  preloaded_polls.any? { |p| p.has_voted?(scope.user) }
              end,
            ) do
              preloaded_polls
                .map do |poll|
                  user_poll_votes =
                    poll
                      .poll_votes
                      .where(user_id: scope.user.id)
                      .joins(:poll_option)
                      .pluck("poll_options.digest")
          
                  [poll.name, user_poll_votes]
                end
                .to_h
            end
          
            register_search_advanced_filter(/in:polls/) do |posts, match|
              if SiteSetting.poll_enabled
                posts.joins(:polls)
              else
                posts
              end
            end
          end

This file has been truncated. show original

If anonymous voting is not allowed it should require a users token.

I’m thinking about adding the api endpoints for plugins as well to the api docs. I can just create a tag in the docs for each plugin that is added.

I’ll work on adding the poll endpoints to the docs. In the meantime though you can just open up the chrome inspector and go the networks xhr tab and view the requests as you make them.

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Add new API endpoints Support	8	1286	March 23, 2022
Anonymous votes in poll plugin Dev	7	1881	November 19, 2018
Are Post Voting votes/replies accessible via API? Dev rest-api , post-voting	2	297	February 25, 2024
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API endpoint for voting

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