diff --git a/.gitignore b/.gitignore
index ac13607..ef2007a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,6 +17,7 @@
 
 config/database.yml
 config/config.yml
+PocketMoneyDB.sql
 
 
 **/.DS_Store
diff --git a/Gemfile b/Gemfile
index f58c20f..bd0c390 100644
--- a/Gemfile
+++ b/Gemfile
@@ -28,7 +28,7 @@ gem 'turbolinks'
 
 # Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
 gem 'jbuilder', '~> 1.0.1'
-
+gem 'draper'
 gem 'haml'
 gem 'twitter-bootstrap-rails', :git => 'git://github.com/seyhunak/twitter-bootstrap-rails.git'
 gem 'less-rails'
diff --git a/Gemfile.lock b/Gemfile.lock
index cb0d74c..51974e5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -47,6 +47,11 @@ GEM
       execjs
     coffee-script-source (1.6.2)
     commonjs (0.2.6)
+    draper (1.3.0)
+      actionpack (>= 3.0)
+      activemodel (>= 3.0)
+      activesupport (>= 3.0)
+      request_store (~> 1.0.3)
     erubis (2.7.0)
     execjs (1.4.0)
       multi_json (~> 1.0)
@@ -104,6 +109,7 @@ GEM
     rdoc (3.12.2)
       json (~> 1.4)
     ref (1.0.5)
+    request_store (1.0.5)
     ruby-progressbar (1.1.1)
     sass (3.2.9)
     sass-rails (4.0.0.rc1)
@@ -148,6 +154,7 @@ PLATFORMS
 
 DEPENDENCIES
   coffee-rails (~> 4.0.0)
+  draper
   haml
   jbuilder (~> 1.0.1)
   jquery-rails
diff --git a/app/assets/stylesheets/categories.sass b/app/assets/stylesheets/categories.sass
new file mode 100644
index 0000000..c215c0c
--- /dev/null
+++ b/app/assets/stylesheets/categories.sass
@@ -0,0 +1,2 @@
+.budget
+  width: 700px
diff --git a/app/controllers/categories_controller.rb b/app/controllers/categories_controller.rb
new file mode 100644
index 0000000..eaa431c
--- /dev/null
+++ b/app/controllers/categories_controller.rb
@@ -0,0 +1,6 @@
+class CategoriesController < ApplicationController
+  def budgets
+    @budgets = BudgetCategoriesDecorator.new(Category::BudgetCategory.all)
+    @filter  = Category.filter(params)
+  end
+end
diff --git a/app/decorators/budget_categories_decorator.rb b/app/decorators/budget_categories_decorator.rb
new file mode 100644
index 0000000..11d84d9
--- /dev/null
+++ b/app/decorators/budget_categories_decorator.rb
@@ -0,0 +1,3 @@
+class BudgetCategoriesDecorator < Draper::Decorator
+  delegate_all
+end
diff --git a/app/decorators/budget_category_decorator.rb b/app/decorators/budget_category_decorator.rb
new file mode 100644
index 0000000..061b5b2
--- /dev/null
+++ b/app/decorators/budget_category_decorator.rb
@@ -0,0 +1,40 @@
+class BudgetCategoryDecorator < Draper::Decorator
+  delegate_all
+
+  def dates_intervals(from, to)
+    @@from = from
+    @@to   = to+1
+  end
+
+  def amount
+    amount = Category::BudgetCategory.interval(@@from, @@to)
+    amount = amount.sum_category(model.id) 
+    amount < 0 ? amount*-1 : amount
+  end
+
+  def limit
+    (model.amount_day * ((@@to - @@from).to_i+1)).round(0)
+  end
+
+  def balance
+    (limit - amount).round(0)
+  end
+
+  def available
+    balance < 0 ? 0 : balance
+  end
+
+  def color 
+    balance < 0 ? "danger" : "warning"
+  end
+
+  def spent_percentage
+    percentage = (amount * 100) / limit
+    percentage < 100 ? percentage : 100
+  end
+
+  def available_percentage
+    100 - spent_percentage
+  end
+
+end
diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index a65b4e1..717067d 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -27,4 +27,15 @@ def progress_bar(type, percentage, &block)
     content_tag :div, :class=> "bar bar-#{type}", :style=>"width:#{percentage}%;", &block if percentage > 0
   end
 
+  def set_period(filter)
+    case filter.kind
+    when "month"
+      filter.from.strftime("%B %Y")
+    when "week"
+      "#{filter.from.strftime('%d %B %Y')} - #{filter.to.strftime('%d %B %Y')}"
+    when "year"
+      filter.from.year
+    end
+  end
+
 end
diff --git a/app/helpers/categories_helper.rb b/app/helpers/categories_helper.rb
new file mode 100644
index 0000000..5e35611
--- /dev/null
+++ b/app/helpers/categories_helper.rb
@@ -0,0 +1,7 @@
+module CategoriesHelper
+
+  def total_budget
+    Category::BudgetCategory.total_values(@filter.from, @filter.to+1.day)
+  end
+  
+end
diff --git a/app/models/category.rb b/app/models/category.rb
index fc6134b..8c13b40 100644
--- a/app/models/category.rb
+++ b/app/models/category.rb
@@ -1,8 +1,83 @@
 class Category < ActiveRecord::Base
+  include FilterInterval
+  class BudgetCategory < ActiveRecord::Base
+    self.table_name = "budget_categories"
+    self.primary_key = "id"
+    belongs_to :category, foreign_key: "id"
+    scope :incomes, -> { budgets.where(budget_type: 1)}
+    scope :expenses, -> { budgets.where(budget_type: 0)}
+    scope :sum_incomes,  -> { where(budget_type: 1).sum(:amount) }
+    scope :sum_expenses, -> { where(budget_type: 0).sum(:amount) }
+    scope :interval, ->(from, to) { where("budget_categories.date >= ? AND budget_categories.date <= ?", from, to) }
+    scope :budgets,      -> {select("id, amount_day, budget_type, name").order("name").uniq}
+    scope :sum_category, ->(id) { where(id: id).sum(:amount) }
+   
+    def self.total_values(from, to)
+      @@days = (to - from).to_i
+      @@interval = interval(from, to)
+      @@spent = total_spent * -1
+      @@entries = total_entries
+      Hash['saved', saved, 'beat', beat_budget, 'missing', missing_budget, 'deficit', deficit ]
+    end
+
+    private
+    def self.total_spent
+      @@interval.sum_expenses
+    end
+
+    def self.total_entries
+      @@interval.sum_incomes
+    end
+    
+    def self.saved 
+      @@entries > @@spent ? @@entries - @@spent : 0
+    end
+
+    def self.beat_budget
+      value = income_vs_expense
+      value > 0 ? value : 0
+    end
+
+    def self.missing_budget
+      value = income_vs_expense
+      value < 0 ? value : 0
+    end
+
+    def self.deficit
+      @@entries - @@spent > 0 ? 0 : @@entries - @@spent
+    end
+ 
+    def self.income_vs_expense
+      incomes = @@entries - budget_entries 
+      expenses = budget_expenses - @@spent
+      incomes + expenses
+    end
+
+    def self.budget_entries
+      ((incomes.map(&:amount_day).sum) * @@days).round(0) 
+    end
+
+    def self.budget_expenses
+      ((expenses.map(&:amount_day).sum) * @@days).round(0) 
+    end
+  end
+
+  ## Budget period
+  # 0 diario
+  # 1 Semanal
+  # 2 Mensual
+  # 3 Cuatrimestral
+  # 4 Anual
   scope :active,             ->       { where(deleted:false) }
   scope :transaction_ids,    ->(ids)  { joins(:splits => :transaction).where(transactions: {id: ids})                        }
   scope :transaction_totals, ->       { joins(:splits => :transaction).merge(Transaction.total_amount)                       }
   scope :group_by_name,      ->       { select('categories.name', 'categories.id').group('categories.name', 'categories.id') }
 
   has_many :splits
+  has_one :budget_category, foreign_key: "id"
+
+  def self.filter(params)
+    Filter.new(params)
+  end
+
 end
diff --git a/app/models/transaction.rb b/app/models/transaction.rb
index ee2cc2b..e0ed4fe 100644
--- a/app/models/transaction.rb
+++ b/app/models/transaction.rb
@@ -1,4 +1,5 @@
 class Transaction < ActiveRecord::Base
+  include FilterInterval
   # pm_types
   # 0 Withdrawal
   # 1 Deposit
@@ -17,14 +18,12 @@ class Transaction < ActiveRecord::Base
   scope :balance, -> { select('*').select('SUM(amount) OVER (PARTITION BY account_id ORDER BY date ASC) as balance') }
   scope :transaction_includes, -> { includes(:account,:splits => :category) }
   scope :full, -> { order_date.transaction_includes.active.balance }
-
   scope :interval, ->(from, to) { where("transactions.date >= ? AND transactions.date <= ?", from, to) }
   scope :total_amount, -> { select('count(transactions.amount) as total_count', 'sum(transactions.amount) as total_amount') }
-
-  belongs_to :account
-  has_many :splits
-
-
+                                 
+  belongs_to :account   
+  has_many :splits        
+                            
   def split?
     @split ||= splits.size > 1
   end
@@ -43,183 +42,4 @@ def self.filter(conditions)
     Filter.new(conditions)
   end
 
-  class Filter
-
-    def initialize(conditions)
-      @conditions = conditions
-      @category_ids = []
-    end
-
-    def accounts
-      @accounts ||= Account.all
-    end
-
-    def transactions
-      @transactions ||= transaction_query.full
-    end
-
-    def grouped_transactions
-      case group_by
-      when 'date'
-        transactions.group_by {|t| t.date.to_s(:short_date) }
-      when 'type'
-        transactions.group_by {|t| t.type_name }
-      when 'account'
-        transactions.group_by {|t| t.account.name }
-      when 'category'
-        transactions.group_by {|t| t.category_name.to_s }
-      end
-    end
-
-    def categories
-      @categories ||= Category.transaction_totals.group_by_name.transaction_ids(transaction_ids)
-    end
-
-    def intervals
-      [ Interval.new(:week), Interval.new(:month), Interval.new(:year) ]
-    end
-
-    def current_interval
-      @conditions[:from] ?  Interval.new(kind,from)        : intervals.select {|i| i.kind.to_s == kind }.first
-    end
-
-    def from
-      @conditions[:from] ?  Date.parse(@conditions[:from]) : current_interval.from
-    end
-
-    def to
-      @conditions[:to] ?    Date.parse(@conditions[:to])   : current_interval.to
-    end
-
-    def kind
-      @conditions[:kind] || 'month'
-    end
-
-    def previous
-      @previous ||= current_interval.previous
-    end
-
-    def next
-      @next ||= current_interval.next
-    end
-
-    def categories_total
-      categories.to_a.sum(&:total_amount)
-    end
-
-    def types_total
-      @types_total = widthdrawals_amount + deposits_amount + transfers_amount
-    end
-
-    def widthdrawals_amount
-      types_query[0].to_f.abs
-    end
-    
-    def deposits_amount
-      types_query[1].to_f.abs
-    end
-
-    def transfers_amount
-      types_query[2].to_f.abs
-    end
-
-    def widthdrawals_percentage
-      (widthdrawals_amount/types_total * 100)
-    end
-    
-    def deposits_percentage
-      (deposits_amount / types_total * 100)
-    end
-
-    def transfers_percentage
-      (transfers_amount / types_total * 100)
-    end
-
-    def transaction_ids
-      @transaction_ids ||= transactions.map &:id
-    end
-
-
-    private 
-
-    def types_query
-      @types_query ||= Transaction.where(id: transaction_ids ).group('transactions.pm_type').sum(:amount)
-    end
-
-    def transaction_interval
-      Transaction.interval(from, to)
-    end
-
-    def transaction_query
-      t = transaction_interval
-      t = t.where(pm_type: pm_type) if pm_type
-      t = t.where(account_id: account_id) if account_id
-      t = t.where('categories.id = ?', category_id) if category_id
-      t
-    end
-
-    def account_id
-      @conditions[:account_id]
-    end
-
-    def category_id
-      @conditions[:category_id]
-    end
-
-    def pm_type
-      @conditions[:pm_type]
-    end
-
-    def group_by
-      @conditions[:group_by] || 'date'
-    end
-
-    class Interval
-      attr_accessor :from, :to, :kind
-
-      def initialize(kind, date = nil)
-        @kind = kind
-        @date = date
-      end
-
-      def from
-        date.send("beginning_of_#{kind}")
-      end
-
-      def to
-        date.send("end_of_#{kind}")
-      end
-
-      def date
-        @date || Date.today
-      end
-
-      def to_hash
-        { kind: kind,  from: from_string,  to: to_string  }
-      end
-
-      def from_string
-        from.strftime('%Y%m%d')
-      end
-
-      def to_string
-        to.strftime('%Y%m%d')
-      end
-
-      def name
-        kind.to_s.humanize
-      end
-
-      def previous
-        Interval.new(kind, from - 1.send(kind))
-      end
-
-      def next
-        Interval.new(kind, from + 1.send(kind))
-      end
-
-    end
-
-  end
-
 end
diff --git a/app/views/categories/_actual_budgets.haml b/app/views/categories/_actual_budgets.haml
new file mode 100644
index 0000000..d01a8d8
--- /dev/null
+++ b/app/views/categories/_actual_budgets.haml
@@ -0,0 +1,40 @@
+%table.table-bordered
+  %thead
+    %tr
+      %th Categories 
+      %th 
+        =set_period(@filter) 
+      %th 
+    %tr 
+      %th  
+      %th Entries
+      %th Budgeted
+      %th Remaining
+  =render 'incomes_table'      
+  %thead
+    %tr
+      %th  
+      %th Expenses
+      %th Budgeted
+      %th Available
+      %th Balance
+  =render 'expenses_table'      
+%table.table-bordered 
+  %thead
+    %tr
+      %th Saved
+      %th Beat Budget
+      %th Missed Budget
+      %th Deficit
+  %tbody.summary-header
+    -result = total_budget
+    %tr
+      %th
+        =result['saved']
+      %th
+        =result['beat']
+      %th
+        =result['missing']
+      %th
+        =result['deficit']
+ 
diff --git a/app/views/categories/_expenses_table.haml b/app/views/categories/_expenses_table.haml
new file mode 100644
index 0000000..9df675d
--- /dev/null
+++ b/app/views/categories/_expenses_table.haml
@@ -0,0 +1,20 @@
+%tbody.summary-header.progress
+  -@budgets.expenses.each do |bud|
+    -budget = BudgetCategoryDecorator.decorate(bud)
+    -budget.dates_intervals(@filter.from, @filter.to)
+    %tr
+      %td
+        =budget.name
+      %td.budget
+        =progress_bar budget.color, budget.spent_percentage do
+          %p
+            =budget.amount
+        =progress_bar "success", budget.available_percentage do
+          %p
+            =budget.available
+      %td
+        =budget.limit
+      %td
+        =budget.available
+      %td
+        =budget.balance
diff --git a/app/views/categories/_filters.haml b/app/views/categories/_filters.haml
new file mode 100644
index 0000000..259446b
--- /dev/null
+++ b/app/views/categories/_filters.haml
@@ -0,0 +1,17 @@
+%ul.nav.nav-list.left.filters
+  %li
+    %li.icon-backward
+    = link_to url_for params.merge(@filter.previous.to_hash) do
+      Previous
+      = @filter.previous.name
+  %li
+    %li.icon-forward
+    = link_to url_for params.merge(@filter.next.to_hash) do
+      Next
+      = @filter.next.name
+
+  %li.divider
+
+  =render "intervals"
+
+  %li.divider
diff --git a/app/views/categories/_incomes_table.haml b/app/views/categories/_incomes_table.haml
new file mode 100644
index 0000000..4848dc1
--- /dev/null
+++ b/app/views/categories/_incomes_table.haml
@@ -0,0 +1,19 @@
+%tbody.summary-header.progress
+  -@budgets.incomes.each do |bud|
+    -budget = BudgetCategoryDecorator.decorate(bud)
+    -budget.dates_intervals(@filter.from, @filter.to)
+    %tr
+      %td
+        =budget.name
+      %td.budget
+        =progress_bar "success", budget.spent_percentage do
+          %p
+            =budget.amount
+        =progress_bar "danger", budget.available_percentage do
+          %p
+            =budget.available
+      %td
+        =budget.limit
+      %td
+        =budget.available
+      %td
diff --git a/app/views/categories/_intervals.html.haml b/app/views/categories/_intervals.html.haml
new file mode 100644
index 0000000..e12d789
--- /dev/null
+++ b/app/views/categories/_intervals.html.haml
@@ -0,0 +1,5 @@
+- @filter.intervals.each do |interval|
+  = content_tag :li, :class=> params[:kind] == interval.kind.to_s ? 'active' : '' do
+    = link_to url_for params.merge(interval.to_hash) do
+      This
+      = interval.name
diff --git a/app/views/categories/budgets.haml b/app/views/categories/budgets.haml
new file mode 100644
index 0000000..76c146c
--- /dev/null
+++ b/app/views/categories/budgets.haml
@@ -0,0 +1,7 @@
+.content
+  %h1 Budgets
+    
+  .span3
+    =render partial: 'filters'
+  .span8
+    = render partial: 'actual_budgets'
diff --git a/app/views/layouts/_navigation.haml b/app/views/layouts/_navigation.haml
index 2006527..2d17d5c 100644
--- a/app/views/layouts/_navigation.haml
+++ b/app/views/layouts/_navigation.haml
@@ -8,6 +8,7 @@
         %ul.nav
           %li= link_to 'All transactions', transactions_path
           = render '/accounts/menu'
+          %li=link_to 'Budgets', budgets_path
           %li= link_to 'Import', import_index_path
 
 
diff --git a/app/views/layouts/application.haml b/app/views/layouts/application.haml
index 3731878..1725ec4 100644
--- a/app/views/layouts/application.haml
+++ b/app/views/layouts/application.haml
@@ -1,11 +1,11 @@
 !!!
 %html
   %head
-    %meta{:charset => "utf-8"}
-    %meta{:name => "viewport", :content => "width=device-width, initial-scale=1, maximum-scale=1"}
+    %meta{charset: "utf-8"}
+    %meta{name: "viewport", :content => "width=device-width, initial-scale=1, maximum-scale=1"}
     %title= content_for?(:title) ? yield(:title) : "Bernard"
-    %meta{:content => "", :name => "description"}
-    %meta{:content => "", :name => "author"}
+    %meta{content: "", name: "description"}
+    %meta{content: "", name: "author"}
     = stylesheet_link_tag    "application", media: "all", "data-turbolinks-track" => true
     = javascript_include_tag "application", "data-turbolinks-track" => true
     = csrf_meta_tags
diff --git a/config/initializers/filter.rb b/config/initializers/filter.rb
new file mode 100644
index 0000000..4ceeaa0
--- /dev/null
+++ b/config/initializers/filter.rb
@@ -0,0 +1 @@
+require 'modules/module_filter'
diff --git a/config/routes.rb b/config/routes.rb
index 51066a7..5806e37 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -8,6 +8,7 @@
   resources :import do
     post 'import_csv', on: :collection
   end
+  get 'budgets/' => 'categories#budgets'
 
   # The priority is based upon order of creation: first created -> highest priority.
   # See how all your routes lay out with "rake routes".
diff --git a/db/migrate/20131115215846_create_budget_categories.rb b/db/migrate/20131115215846_create_budget_categories.rb
new file mode 100644
index 0000000..e52bfba
--- /dev/null
+++ b/db/migrate/20131115215846_create_budget_categories.rb
@@ -0,0 +1,25 @@
+class CreateBudgetCategories < ActiveRecord::Migration
+  def change
+    execute <<-SQL
+    CREATE VIEW budget_categories AS
+      SELECT name,c.id as id, 
+        t.id as transaction_id, 
+        c.budget_limit as limit, 
+        c.budget_period as period, 
+        t.date,
+        c.pm_type as budget_type, 
+        t.amount, 
+        CASE 
+          when budget_period = 1 then budget_limit/7
+          when budget_period = 2 then budget_limit/30
+          when budget_period = 4 then budget_limit/365
+        end as amount_day,
+        (SELECT sum(amount) from transactions t where t.category_id = c.id 
+        and t.deleted = 'false' and t.pm_type <> 5) as category_amount
+      FROM categories c
+        inner join transactions t on t.category_id = c.id and t.deleted = false and t.pm_type <> 5
+      WHERE c.budget_limit is not null and c.deleted = 'false' 
+      ORDER BY c.name
+    SQL
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index af83078..a7e297c 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -11,10 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20130718222102) do
-
-  # These are extensions that must be enabled in order to support this database
-  enable_extension "plpgsql"
+ActiveRecord::Schema.define(version: 20131115215846) do
 
   create_table "accounts", force: true do |t|
     t.boolean  "deleted"
diff --git a/lib/modules/module_filter.rb b/lib/modules/module_filter.rb
new file mode 100644
index 0000000..eb24c5e
--- /dev/null
+++ b/lib/modules/module_filter.rb
@@ -0,0 +1,180 @@
+module FilterInterval
+  class Filter
+
+    def initialize(conditions)
+      @conditions = conditions
+      @category_ids = []
+    end
+
+    def accounts
+      @accounts ||= Account.all
+    end
+
+    def transactions
+      @transactions ||= transaction_query.full
+    end
+
+    def grouped_transactions
+      case group_by
+      when 'date'
+        transactions.group_by {|t| t.date.to_s(:short_date) }
+      when 'type'
+        transactions.group_by {|t| t.type_name }
+      when 'account'
+        transactions.group_by {|t| t.account.name }
+      when 'category'
+        transactions.group_by {|t| t.category_name.to_s }
+      end
+    end
+
+    def categories
+      @categories ||= Category.transaction_totals.group_by_name.transaction_ids(transaction_ids)
+    end
+
+    def intervals
+      [ Interval.new(:week), Interval.new(:month), Interval.new(:year) ]
+    end
+
+    def current_interval
+      @conditions[:from] ?  Interval.new(kind,from)        : intervals.select {|i| i.kind.to_s == kind }.first
+    end
+
+    def from
+      @conditions[:from] ?  Date.parse(@conditions[:from]) : current_interval.from
+    end
+
+    def to
+      @conditions[:to] ?    Date.parse(@conditions[:to])   : current_interval.to
+    end
+
+    def kind
+      @conditions[:kind] || 'month'
+    end
+
+    def previous
+      @previous ||= current_interval.previous
+    end
+
+    def next
+      @next ||= current_interval.next
+    end
+
+    def categories_total
+      categories.to_a.sum(&:total_amount)
+    end
+
+    def types_total
+      @types_total = widthdrawals_amount + deposits_amount + transfers_amount
+    end
+
+    def widthdrawals_amount
+      types_query[0].to_f.abs
+    end
+
+    def deposits_amount
+      types_query[1].to_f.abs
+    end
+
+    def transfers_amount
+      types_query[2].to_f.abs
+    end
+
+    def widthdrawals_percentage
+      (widthdrawals_amount/types_total * 100)
+    end
+
+    def deposits_percentage
+      (deposits_amount / types_total * 100)
+    end
+
+    def transfers_percentage
+      (transfers_amount / types_total * 100)
+    end
+
+    def transaction_ids
+      @transaction_ids ||= transactions.map &:id
+    end
+
+
+    private 
+
+    def types_query
+      @types_query ||= Transaction.where(id: transaction_ids ).group('transactions.pm_type').sum(:amount)
+    end
+
+    def transaction_interval
+      Transaction.interval(from, to)
+    end
+
+    def transaction_query
+      t = transaction_interval
+      t = t.where(pm_type: pm_type) if pm_type
+      t = t.where(account_id: account_id) if account_id
+      t = t.where('categories.id = ?', category_id) if category_id
+      t
+    end
+
+    def account_id
+      @conditions[:account_id]
+    end
+
+    def category_id
+      @conditions[:category_id]
+    end
+
+    def pm_type
+      @conditions[:pm_type]
+    end
+
+    def group_by
+      @conditions[:group_by] || 'date'
+    end
+
+    class Interval
+      attr_accessor :from, :to, :kind
+
+      def initialize(kind, date = nil)
+        @kind = kind
+        @date = date
+      end
+
+      def from
+        date.send("beginning_of_#{kind}")
+      end
+
+      def to
+        date.send("end_of_#{kind}")
+      end
+
+      def date
+        @date || Date.today
+      end
+
+      def to_hash
+        { kind: kind,  from: from_string,  to: to_string  }
+      end
+
+      def from_string
+        from.strftime('%Y%m%d')
+      end
+
+      def to_string
+        to.strftime('%Y%m%d')
+      end
+
+      def name
+        kind.to_s.humanize
+      end
+
+      def previous
+        Interval.new(kind, from - 1.send(kind))
+      end
+
+      def next
+        Interval.new(kind, from + 1.send(kind))
+      end
+
+    end
+  end
+end
+
diff --git a/lib/pocket_money.rb b/lib/pocket_money.rb
index cb8bbf9..026a7c3 100644
--- a/lib/pocket_money.rb
+++ b/lib/pocket_money.rb
@@ -1,3 +1,4 @@
 require 'pocket_money/base.rb'
 require 'pocket_money/tables'
 require 'pocket_money/import'
+require 'pocket_money/categories'
diff --git a/lib/pocket_money/categories.rb b/lib/pocket_money/categories.rb
new file mode 100644
index 0000000..8017e83
--- /dev/null
+++ b/lib/pocket_money/categories.rb
@@ -0,0 +1,9 @@
+class AddCategories
+  def self.categories
+    transactions = Transaction.all
+    transactions.each do |t|
+      t.category_id = t.splits.first.category_id
+      t.save
+    end
+  end
+end
diff --git a/lib/tasks/pm.rake b/lib/tasks/pm.rake
index a0c6a19..2600712 100644
--- a/lib/tasks/pm.rake
+++ b/lib/tasks/pm.rake
@@ -2,5 +2,7 @@ namespace :pm do
   desc 'import pocket money database'
   task :import => :environment do
     PocketMoney.import
+    AddCategories.categories
   end
+
 end