Limits number of visible ideas (6 on board and 12 on cards)

app/controllers/ideas_controller.rb

@@ -20,16 +20,22 @@ class IdeasController < ApplicationController
   VALID_VIEWS = %w(cards board)
   DEFAULT_VIEW = VALID_VIEWS.first
 
+  LIMIT_RANGE = 5..100
+  DEFAULT_LIMIT = { 'board' => 6, 'cards' => 12 }
+
   def index
     @angle    = set_angle_from_params
     @order    = set_order_from_params_and_angle
     @filter   = set_filter_from_params_and_angle
     @category = set_category_from_params_and_angle
     @view     = set_view_from_params
+    @limit    = set_limit_from_params(@view)
+    @state    = set_state_from_params
+
 
-    @ideas = current_account.ideas.
-      send(:"#{@angle}_by", current_user).
-      send(:"by_#{@order}")
+    # account, angle and filter
+    @ideas = current_account.ideas
+    @ideas = @ideas.send(:"#{@angle}_by", current_user)
     @ideas = @ideas.send(:"#{@filter}_by", current_user) unless @filter == 'all'
 
     if @category == 'none'
@@ -38,6 +44,22 @@ def index
       @ideas = @ideas.where(category: @category)
     end
 
+    @ideas = @ideas.with_state(@state.to_sym) unless @state == 'all'
+
+    # counts before ordering and pagination
+    @idea_counts = @ideas.counts_per_state if @view == 'board'
+
+    # order
+    @ideas = @ideas.send(:"by_#{@order}")
+
+    # pagination
+    case @view
+    when 'board'
+      @ideas = @ideas.limit_per_state(limit:@limit)
+    else
+      @ideas = @ideas.paginate(page:1, per_page:@limit)
+    end
+
     # eager-load participants
     @ideas.map(&:participants)
   end
@@ -208,6 +230,21 @@ def set_category_from_params_and_angle
     end
   end
 
+  def set_limit_from_params(view)
+    @limit = begin
+      limit = params[:limit].to_i rescue 0
+      LIMIT_RANGE.include?(limit) ? limit : DEFAULT_LIMIT[view]
+    end
+  end
+
+  VALID_STATES = Idea.state_machine.states.map(&:name).map(&:to_s)
+  def set_state_from_params
+    @state = begin
+      state = params.fetch(:state, 'all')
+      VALID_STATES.include?(state) ? state : 'all'
+    end
+  end
+
   def map_state_names
     # map state names to values
     return unless state = params[:idea].andand[:state]

app/models/idea.rb

@@ -47,6 +47,17 @@ class Idea < ActiveRecord::Base
     backed_ideas_ids.any? ? where('ideas.id NOT IN (?)', backed_ideas_ids) : scoped
   }
 
+  def self.limit_per_state(limit:10)
+    ids = values_of(:id, :state).group_by(&:last).values.map { |id_states| id_states.take(limit).map(&:first) }.flatten
+    where id:ids
+  end
+
+  def self.counts_per_state
+    Hash[
+      group(:state).count.map { |state_value,count| [state_name(state_value), count] }
+    ]
+  end
+
   # Other helpers
 
   def participants

app/views/ideas/_angle_copy.html.haml

@@ -3,3 +3,10 @@
     .ht-margin-icon
       %i.icon-info-sign
     != ideas_copy_for_angle(@angle)
+  - if @ideas.respond_to?(:total_entries) && @ideas.size < @ideas.total_entries
+    .ht-with-margin-icon
+      .ht-margin-icon
+        %i.icon-info-sign
+      = _("We're only showing you %{count} of a total %{total_count} ideas. Don't worry, the others haven't been lost—It's just they're probably not that important if they haven't bubbled up the list.") % { count:@ideas.size, total_count:@ideas.total_entries }
+      %br/
+      = _("Remember that you can find your %{own_ideas} and your %{bookmarked_ideas} easily.").html_safe % { own_ideas:(link_to _('own ideas'), ideas_path(view:'cards', filter:'author')), bookmarked_ideas:link_to(_('bookmarked ideas'), ideas_path(view:'cards', angle:'followed')) }

app/views/ideas/_board.html.haml

@@ -16,3 +16,9 @@
           - grouped_ideas[state_name].andand.each do |idea|
             .af-rtable-cell
               = render 'idea_mini', idea:idea, title_link:true
+          - hidden_count = @idea_counts.fetch(state_name, 0) - grouped_ideas.fetch(state_name, []).length
+          - if hidden_count > 0
+            .af-rtable-cell
+              %div
+                .ht-separator-text
+                  %p= _('+%{count} hidden') % { count:hidden_count } 

app/views/ideas/_cards.html.haml

@@ -1,9 +1,9 @@
 -# Give me an array of +@ideas+
 
 .row
-  .span3
-    = render 'angle_copy'
   .span9
     = render 'no_ideas_banner'
     - @ideas.each do |idea|
       = render 'idea', idea:idea, collapsed:true, title_link:true, muted:true
+  .span3
+    = render 'angle_copy'