Add reference_calculator

app/controllers/home_controller.rb

@@ -14,6 +14,15 @@ class HomeController < ApplicationController
   def profile
   end
 
+  def reference_calculator
+    if current_user.ordergroup
+      @types = FinancialTransactionType.with_name_short.order(:name)
+      @bank_accounts = @types.includes(:bank_account).map(&:bank_account).uniq.compact
+    else
+      redirect_to root_url, alert: I18n.t('group_orders.errors.no_member')
+    end
+  end
+
   def update_profile
     if @current_user.update_attributes(user_params)
       @current_user.ordergroup.update_attributes(ordergroup_params) if ordergroup_params

app/models/financial_transaction_type.rb

@@ -1,5 +1,6 @@
 class FinancialTransactionType < ApplicationRecord
   belongs_to :financial_transaction_class
+  belongs_to :bank_account
   has_many :financial_transactions, dependent: :restrict_with_exception
 
   validates :name, presence: true
@@ -10,6 +11,8 @@ class FinancialTransactionType < ApplicationRecord
 
   before_destroy :restrict_deleting_last_financial_transaction_type
 
+  scope :with_name_short, -> { where.not(name_short: [nil, '']) }
+
   def self.default
     first
   end

app/views/admin/financial_transaction_types/_form.html.haml

@@ -6,6 +6,9 @@
     = f.input :name
     = f.association :financial_transaction_class, :include_blank => false
     = f.input :name_short
+    - if BankAccount.count > 1
+      = f.association :bank_account
+    %small= t '.name_short_desc'
   .modal-footer
     = link_to t('ui.close'), '#', class: 'btn', data: {dismiss: 'modal'}
     = f.submit class: 'btn btn-primary'

app/views/home/reference_calculator.haml

@@ -0,0 +1,76 @@
+- title t('.title')
+
+- content_for :javascript do
+  :javascript
+    $(function() {
+      var default_bank_account = $('p[data-text]').attr('data-text');
+
+      function update() {
+        var items = {};
+        var hide_placeholder = false;
+
+        $('input[data-has-name-short]').each(function() {
+          var bank_account = $(this).attr('data-bank-account') || default_bank_account;
+          var name = $(this).attr('name');
+          var value = Math.ceil(parseFloat($(this).val()) * 100) / 100;
+          if (value > 0) {
+            var item = items[bank_account];
+            if (!item) {
+              items[bank_account] = item = { amount: 0, values: {} };
+            }
+
+            item.amount += value;
+            item.values[name] = value;
+            hide_placeholder = true;
+          }
+        });
+
+        $('p[data-text]').each(function() {
+          var ele = $(this);
+          var bank_account = ele.attr('data-text');
+          var item = items[bank_account];
+          console.dir(item);
+          if (item) {
+            ele.show();
+            ele.find('.amount').text(item.amount);
+            ele.find('.reference').text((#{BankTransactionReference.js_code_for_user(@current_user)})(item.values));
+          } else {
+            ele.hide();
+          }
+        });
+
+        if (hide_placeholder) {
+          $('#placeholder').hide();
+        } else {
+          $('#placeholder').show();
+        }
+      }
+
+      $(document).on('input', 'input[data-has-name-short]', update);
+      update();
+    });
+
+= form_tag finance_create_transaction_collection_path do
+  %p
+    %table#ordergroups
+      %thead
+        %tr
+          %th= heading_helper FinancialTransactionType, :name
+          %th= heading_helper FinancialTransaction, :amount
+      %tbody
+        - for t in @types
+          %tr
+            %td= "#{t.name} (#{t.name_short}):"
+            %td= text_field_tag t.name_short, nil, class: 'input-small',
+              'data-has-name-short' => true, 'data-bank-account' => t.bank_account.try(:id),
+              step: 0.01, type: :number
+  %p#placeholder
+    = t('.placeholder')
+  - for ba in @bank_accounts
+    %p{'data-text' => ba.id}
+      = t('.text0')
+      %b.amount= '?'
+      = t('.text1')
+      %b.reference= '?'
+      = t('.text2')
+      %b= ba.iban

app/views/layouts/application.html.haml

@@ -9,6 +9,8 @@
       %ul.dropdown-menu
         %li= link_to t('.profile'), my_profile_path
         %li= link_to t('.ordergroup'), my_ordergroup_path
+        - if BankAccount.any? && FinancialTransactionType.with_name_short.any?
+          %li= link_to t('.reference_calculator'), home_reference_calculator_path
         %li= link_to t('.logout'), logout_path
     %li{class: ('disabled' if FoodsoftConfig[:homepage].blank?)}
       = link_to FoodsoftConfig[:name], FoodsoftConfig[:homepage]