adds filtering of tags for spending proposals

app/controllers/admin/spending_proposals_controller.rb

@@ -16,7 +16,7 @@ class Admin::SpendingProposalsController < Admin::BaseController
   def edit
     @admins = Administrator.includes(:user).all
     @valuators = Valuator.includes(:user).all.order("users.username ASC")
-    @tags = ActsAsTaggableOn::Tag.where('taggings.taggable_type' => 'SpendingProposal').includes(:taggings)
+    @tags = ActsAsTaggableOn::Tag.spending_proposal_tags
   end
 
   def update

app/helpers/spending_proposals_helper.rb

@@ -0,0 +1,6 @@
+module SpendingProposalsHelper
+
+  def spending_proposal_tags_select_options
+    ActsAsTaggableOn::Tag.spending_proposal_tags.pluck(:name)
+  end
+end

app/models/spending_proposal.rb

@@ -35,6 +35,7 @@ class SpendingProposal < ActiveRecord::Base
     results = self
     results = results.by_geozone(params[:geozone_id])             if params[:geozone_id].present?
     results = results.by_administrator(params[:administrator_id]) if params[:administrator_id].present?
+    results = results.by_tag(params[:tag_name])                   if params[:tag_name].present?
     results = results.send(current_filter)                        if current_filter.present?
     results.for_render
   end
@@ -51,6 +52,10 @@ class SpendingProposal < ActiveRecord::Base
     where(administrator_id: administrator.presence)
   end
 
+  def self.by_tag(tag_name)
+    tagged_with(tag_name)
+  end
+
   def feasibility
     case feasible
     when true

app/views/admin/spending_proposals/index.html.erb

@@ -2,6 +2,13 @@
 
 <div>
   <%= form_tag admin_spending_proposals_path, method: :get, enforce_utf8: false do %>
+    <div class="small-12 medium-4 column float-right">
+      <%= select_tag :tag_name,
+                     options_for_select(spending_proposal_tags_select_options, params[:tag_name]),
+                     { prompt: t("admin.spending_proposals.index.tags_filter_all"),
+                       label: false,
+                       class: "js-submit-on-change" } %>
+    </div>
     <div class="small-12 medium-4 column float-right">
       <%= select_tag :geozone_id,
                      options_for_select(geozone_select_options.unshift([t("geozones.none"), "all"]), params[:geozone_id]),
@@ -25,7 +32,7 @@
 
 <table>
   <% @spending_proposals.each do |spending_proposal| %>
-    <tr id="<%= dom_id(spending_proposal) %>">
+    <tr id="<%= dom_id(spending_proposal) %>" class="spending_proposal">
       <td>
         <strong><%= spending_proposal.id %></strong>
       </td>