Allows moderators to hide proposals from index

app/assets/javascripts/moderator_proposals.js.coffee

@@ -0,0 +1,8 @@
+App.ModeratorProposals =
+
+  add_class_faded: (id) ->
+    $("##{id}").addClass("faded")
+    $("#comments").addClass("faded")
+
+  hide_moderator_actions: (id) ->
+    $("##{id} .js-moderator-proposals-actions:first").hide()

app/controllers/moderation/proposals_controller.rb

@@ -0,0 +1,6 @@
+class Moderation::ProposalsController < Moderation::BaseController
+  load_and_authorize_resource
+  def hide
+    @proposal.hide
+  end
+end

spec/features/moderation/proposals_spec.rb

@@ -0,0 +1,38 @@
+require 'rails_helper'
+
+feature 'Moderate proposals' do
+
+  scenario 'Hide', :js do
+    citizen = create(:user)
+    moderator = create(:moderator)
+
+    proposal = create(:proposal)
+
+    login_as(moderator.user)
+    visit proposal_path(proposal)
+
+    within("#proposal_#{proposal.id}") do
+      click_link 'Hide'
+    end
+
+    expect(page).to have_css("#proposal_#{proposal.id}.faded")
+
+    login_as(citizen)
+    visit proposals_path
+
+    expect(page).to have_css('.proposal', count: 0)
+  end
+
+  scenario 'Can not hide own proposal' do
+    moderator = create(:moderator)
+    proposal = create(:proposal, author: moderator.user)
+
+    login_as(moderator.user)
+    visit proposal_path(proposal)
+
+    within("#proposal_#{proposal.id}") do
+      expect(page).to_not have_link('Hide')
+      expect(page).to_not have_link('Block author')
+    end
+  end
+end