Add sort and group by options

lib/librarix/application.rb

@@ -25,7 +25,7 @@ module Librarix
     helpers Librarix::Helpers
 
     get '/' do
-      slim :index, locals: {movies: Librarix::Filter.new(params).movies}
+      slim :index, locals: {filter: Librarix::Filter.new(params)}
     end
 
     get '/movie/:id' do |id|

lib/librarix/assets/application.scss

@@ -20,7 +20,7 @@ h2 {
   font-family: Verdana,Arial,sans-serif;
 }
 
-ul#movies, ul#menu {
+ul.movies, ul#menu {
   list-style-type: none;
   margin: 0;
   padding: 0;

lib/librarix/filter.rb

@@ -1,32 +1,78 @@
 module Librarix
   class Filter
+    def self.filter_by_title(movies, title)
+      return movies unless title
+      movies.select { |movie| movie.title.downcase.include?(title) }
+    end
+
+    def self.filter_by_view_state(movies, view_state)
+      if view_state == 'viewed'
+        movies.select(&:viewed?)
+      elsif view_state == 'not_viewed'
+        movies.reject(&:viewed?)
+      else
+        movies
+      end
+    end
+
+    def self.sort(movies, sort)
+      if sort == 'date'
+        movies.sort_by(&:release_date).reverse
+      else
+        movies.sort_by(&:title)
+      end
+    end
+
+    def self.group(movies, group, sort)
+      return {all: movies} unless group
+
+      if sort == 'date'
+        movies.group_by { |movie| movie.release_date.year }
+      else
+        movies.group_by { |movie| movie.title[0].upcase }
+      end
+    end
+
     attr_reader :movies, :params
 
     def initialize(params)
       @params = params
-      filter
     end
 
-    private
+    def movies
+      @movies ||= begin
+        movies = Librarix::Redis::Movie.all
 
-    def filter
-      @movies = Librarix::Redis::Movie.all
-      by_title if @params.key?('title')
-      by_view_state if @params.key?('view_state')
+        movies = self.class.filter_by_title(movies, params['title'])
+        movies = self.class.filter_by_view_state(movies, params['view_state'])
 
-      @movies.sort_by!(&:release_date).reverse!
+        movies = self.class.sort(movies, sort)
+        movies = self.class.group(movies, group, sort)
+      end
     end
 
-    def by_title
-      movies.select! { |movie| movie.title.downcase.include?(params['title']) }
+    def group
+      @group ||= params.key?('group') && params['group']
     end
 
-    def by_view_state
-      if params['view_state'] == 'viewed'
-        movies.keep_if(&:viewed?)
-      elsif params['view_state'] == 'not_viewed'
-        movies.delete_if(&:viewed?)
+    def view_state
+      @view_state ||= if %w{all viewed not_viewed}.include?(params['view_state'])
+        params['view_state']
+      else
+        'all'
       end
     end
+
+    def sort
+      @sort ||= if %w{alphabetical date}.include?(params['sort'])
+        params['sort']
+      else
+        'date'
+      end
+    end
+
+    def maybe_search?
+      movies.empty? && params.key?('title')
+    end
   end
 end

lib/librarix/helpers.rb

@@ -7,9 +7,5 @@ module Librarix
         'default'
       end
     end
-
-    def maybe_search?(movies)
-      movies.empty? && params.key?('title')
-    end
   end
 end

lib/librarix/public/application.css

@@ -1 +1 @@
-body{margin:10px}a{text-decoration:none;color:#666}a:hover{color:#888}h2{margin-top:0;overflow:hidden;text-overflow:ellipsis;font-size:1.2em;font-family:Verdana,Arial,sans-serif}ul#movies,ul#menu{list-style-type:none;margin:0;padding:0}ul#menu{display:flex;flex-flow:row wrap;justify-content:flex-end}ul#menu li{margin:5px}form #search-main{display:flex}form #search-main input{border-radius:0.4em;border:solid 3px #f4f4f4}form #search-main input[type="submit"]{background-color:#f4f4f4}form #search-main input[type="text"]{flex-grow:1;min-width:50px;font-size:1.4em;padding:5px}.default li,.compact li{padding:10px 0}.default li:nth-child(even),.compact li:nth-child(even){background-color:#f4f4f4}.default .movie,.compact .movie{display:flex;flex-flow:row wrap;align-items:center;justify-content:center}.default .movie .poster,.compact .movie .poster{margin-right:10px}.default .movie .informations,.compact .movie .informations{align-self:flex-start;flex:1 1 300px}.poster{display:flex;flex-flow:row wrap}.poster .movie{width:160px}
+body{margin:10px}a{text-decoration:none;color:#666}a:hover{color:#888}h2{margin-top:0;overflow:hidden;text-overflow:ellipsis;font-size:1.2em;font-family:Verdana,Arial,sans-serif}ul.movies,ul#menu{list-style-type:none;margin:0;padding:0}ul#menu{display:flex;flex-flow:row wrap;justify-content:flex-end}ul#menu li{margin:5px}form #search-main{display:flex}form #search-main input{border-radius:0.4em;border:solid 3px #f4f4f4}form #search-main input[type="submit"]{background-color:#f4f4f4}form #search-main input[type="text"]{flex-grow:1;min-width:50px;font-size:1.4em;padding:5px}.default li,.compact li{padding:10px 0}.default li:nth-child(even),.compact li:nth-child(even){background-color:#f4f4f4}.default .movie,.compact .movie{display:flex;flex-flow:row wrap;align-items:center;justify-content:center}.default .movie .poster,.compact .movie .poster{margin-right:10px}.default .movie .informations,.compact .movie .informations{align-self:flex-start;flex:1 1 300px}.poster{display:flex;flex-flow:row wrap}.poster .movie{width:160px}

lib/librarix/views/index.slim

@@ -7,17 +7,25 @@ form method="get" action="/" id="filter"
     input type="submit" value="Filter"
   div id="search-more"
     select name="view_state"
-      option value="all" selected=(params['view_state'].nil? || params['view_state'] == '' || params['view_state'] == 'all') All movies
-      option value="viewed" selected=(params['view_state'] == 'viewed') Only viewed
-      option value="not_viewed" selected=(params['view_state'] == 'not_viewed') Not viewed
+      option value="all" selected=(filter.view_state == 'all') All movies
+      option value="viewed" selected=(filter.view_state == 'viewed') Only viewed
+      option value="not_viewed" selected=(filter.view_state == 'not_viewed') Not viewed
+    select name="sort"
+      option value="alphabetical" selected=(filter.sort == 'alphabetical') Alphabetical
+      option value="date" selected=(filter.sort == 'date') Release date
+    input type="checkbox" name="group" id="group" checked=(filter.group)
+    label for="group" Group by sort
     select name="template"
       option value="default" selected=(template == 'default') Default
       option value="compact" selected=(template == 'compact') Compact
       option value="poster" selected=(template == 'poster') Poster
 
 
-== slim :list, locals: {movies: movies}
-- if maybe_search?(movies)
+- filter.movies.each do |group, movies|
+  - unless group == :all
+    h1 = group
+  == slim :list, locals: {movies: movies}
+- if filter.maybe_search?
   p
     | Search for
     strong

lib/librarix/views/list.slim

@@ -1,4 +1,4 @@
-ul#movies class="#{template}"
+ul.movies class="#{template}"
   - movies.each do |movie|
     li
       == slim :movie, locals: {movie: movie}