diff --git a/app/views/body_trackers/index.html.erb b/app/views/body_trackers/index.html.erb
index 12b2ca1..e2860e3 100644
--- a/app/views/body_trackers/index.html.erb
+++ b/app/views/body_trackers/index.html.erb
@@ -1,5 +1,5 @@
 <h2><%= t ".heading" %></h2>
 
 <% content_for :sidebar do %>
-  <%= render :partial => 'body_trackers/sidebar' %>
+  <%= render partial: 'body_trackers/sidebar' %>
 <% end %>
diff --git a/app/views/ingredients/_contextual.html.erb b/app/views/ingredients/_contextual.html.erb
index b57c92f..84eb9cf 100644
--- a/app/views/ingredients/_contextual.html.erb
+++ b/app/views/ingredients/_contextual.html.erb
@@ -1,6 +1,6 @@
 <% if User.current.allowed_to?(:manage_common, @project) %>
-  <%= link_to t(".link_import_ingredients"), '#', :class => 'icon icon-multiple',
-    :onclick => '$("#import-ingredients").show(); $("#filename").focus(); return false;' %>
-  <%= link_to t(".link_new_ingredient"), '#', :class => 'icon icon-add',
-    :onclick => '$("#add-ingredient").show(); $("#ingredient_name").focus(); return false;' %>
+  <%= link_to t(".link_import_ingredients"), '#', class: 'icon icon-multiple',
+    onclick: '$("#import-ingredients").show(); $("#filename").focus(); return false;' %>
+  <%= link_to t(".link_new_ingredient"), '#', class: 'icon icon-add',
+    onclick: '$("#add-ingredient").show(); $("#ingredient_name").focus(); return false;' %>
 <% end %>
diff --git a/app/views/ingredients/_form.html.erb b/app/views/ingredients/_form.html.erb
index 009f66b..8b24771 100644
--- a/app/views/ingredients/_form.html.erb
+++ b/app/views/ingredients/_form.html.erb
@@ -2,8 +2,8 @@
   <h2><%= t ".heading_new_ingredient" %></h2>
 
   <%= labelled_form_for @ingredient,
-                        :url => project_ingredients_path(@project),
-                        :html => {:id => 'ingredient-form'} do |f| %>
+                        url: project_ingredients_path(@project),
+                        html: {id: 'ingredient-form'} do |f| %>
     <%= error_messages_for @ingredient %>
 
     <div class="box tabular">
@@ -33,19 +33,20 @@
             <%= ff.select :unit_id, unit_options, {label: ''} %>
             <%= ff.check_box :_destroy, {style: "display:none", label: ''} %>
             <%= link_to t(".button_delete_nutrient"), '#',
-              :class => 'icon icon-del',
-              :style => (@ingredient.nutrients.length > 1 ? "" : "display:none"),
-              :onclick => "deleteNutrient(); return false;" %>
+              class: 'icon icon-del',
+              style: (@ingredient.nutrients.length > 1 ? "" : "display:none"),
+              onclick: "deleteNutrient(); return false;" %>
           </p>
         <% end %>
       <% end %>
       <p>
-        <%= link_to t(".button_add_nutrient"), '#', :class => 'icon icon-add',
-          :onclick => 'addNutrient(); return false;' %>
+        <%= link_to t(".button_add_nutrient"), '#', class: 'icon icon-add',
+          onclick: 'addNutrient(); return false;' %>
       </p>
     </div>
     <%= submit_tag l(:button_create) %>
-    <%= link_to l(:button_cancel), "#", :onclick => '$("#add-ingredient").hide()' %>
+    <%= link_to l(:button_cancel), "#",
+      onclick: '$("#add-ingredient").hide(); return false;' %>
   <% end %>
   <hr>
 </div>
diff --git a/app/views/ingredients/_import.html.erb b/app/views/ingredients/_import.html.erb
index b911317..fa8d6fc 100644
--- a/app/views/ingredients/_import.html.erb
+++ b/app/views/ingredients/_import.html.erb
@@ -2,8 +2,8 @@
   <h2><%= t ".heading_import_ingredients" %></h2>
 
   <%= form_tag import_project_ingredients_path(@project),
-               :multipart => true,
-               :id => 'import-form' do %>
+               multipart: true,
+               id: 'import-form' do %>
     <div class="box tabular">
       <p>
       <label><%= t ".label_import_select_csv_file" %></label>
@@ -14,7 +14,8 @@
       </p>
     </div>
     <%= submit_tag l(:button_import) %>
-    <%= link_to l(:button_cancel), "#", :onclick => '$("#import-ingredients").hide()' %>
+    <%= link_to l(:button_cancel), "#",
+      onclick: '$("#import-ingredients").hide(); return false;' %>
   <% end %>
   <hr>
 </div>
diff --git a/app/views/ingredients/_list.html.erb b/app/views/ingredients/_list.html.erb
index 36f1d90..a79b070 100644
--- a/app/views/ingredients/_list.html.erb
+++ b/app/views/ingredients/_list.html.erb
@@ -1,5 +1,5 @@
-<%= render :partial => 'ingredients/filters',
-  :locals => {:url => filter_project_ingredients_path(@project)} %>
+<%= render partial: 'ingredients/filters',
+  locals: {url: filter_project_ingredients_path(@project)} %>
 
 <% if @ingredients.any? { |i| i.persisted? } %>
   <table class="list">
diff --git a/app/views/ingredients/_list_nutrients.html.erb b/app/views/ingredients/_list_nutrients.html.erb
index 402866f..0fde3df 100644
--- a/app/views/ingredients/_list_nutrients.html.erb
+++ b/app/views/ingredients/_list_nutrients.html.erb
@@ -1,8 +1,8 @@
-<%= render :partial => 'ingredients/filters',
-  :locals => {:url => filter_nutrients_project_ingredients_path(@project)} %>
+<%= render partial: 'ingredients/filters',
+  locals: {url: filter_nutrients_project_ingredients_path(@project)} %>
 
 <% if @nutrients.any? %>
-  <%= render :partial => 'ingredients/options' %>
+  <%= render partial: 'ingredients/options' %>
 
   <table class="nutrients list odd-even">
     <thead>
diff --git a/app/views/ingredients/index.html.erb b/app/views/ingredients/index.html.erb
index 8e6d44f..a78dd23 100644
--- a/app/views/ingredients/index.html.erb
+++ b/app/views/ingredients/index.html.erb
@@ -1,18 +1,18 @@
 <% content_for :sidebar do %>
-  <%= render :partial => 'body_trackers/sidebar' %>
+  <%= render partial: 'body_trackers/sidebar' %>
 <% end %>
 
 <div class="contextual">
   <%= link_to t(".heading_nutrient_view"), nutrients_project_ingredients_path(@project),
-    :class => 'icon icon-stats' %>
-  <%= render :partial => 'ingredients/contextual' %>
+    class: 'icon icon-stats' %>
+  <%= render partial: 'ingredients/contextual' %>
 </div>
 
-<%= render :partial => 'ingredients/import' %>
+<%= render partial: 'ingredients/import' %>
 
-<%= render :partial => 'ingredients/form' %>
+<%= render partial: 'ingredients/form' %>
 
 <h2><%= t ".heading" %></h2>
 <div id='ingredients'>
-  <%= render :partial => 'ingredients/list' %>
+  <%= render partial: 'ingredients/list' %>
 </div>
diff --git a/app/views/ingredients/nutrients.html.erb b/app/views/ingredients/nutrients.html.erb
index 2096bd4..a7596dc 100644
--- a/app/views/ingredients/nutrients.html.erb
+++ b/app/views/ingredients/nutrients.html.erb
@@ -1,18 +1,18 @@
 <% content_for :sidebar do %>
-  <%= render :partial => 'body_trackers/sidebar' %>
+  <%= render partial: 'body_trackers/sidebar' %>
 <% end %>
 
 <div class="contextual">
   <%= link_to t(".heading_ingredient_list"), project_ingredients_path(@project),
-    :class => 'icon icon-list' %>
-  <%= render :partial => 'ingredients/contextual' %>
+    class: 'icon icon-list' %>
+  <%= render partial: 'ingredients/contextual' %>
 </div>
 
-<%= render :partial => 'ingredients/import' %>
+<%= render partial: 'ingredients/import' %>
 
-<%= render :partial => 'ingredients/form' %>
+<%= render partial: 'ingredients/form' %>
 
 <h2><%= t ".heading" %></h2>
 <div id='nutrients'>
-  <%= render :partial => 'ingredients/list_nutrients' %>
+  <%= render partial: 'ingredients/list_nutrients' %>
 </div>
diff --git a/app/views/ingredients/toggle.js.erb b/app/views/ingredients/toggle.js.erb
index dbf0a07..c6f9efc 100644
--- a/app/views/ingredients/toggle.js.erb
+++ b/app/views/ingredients/toggle.js.erb
@@ -1,3 +1,3 @@
 $('div[id^=flash_]').remove();
 $('#content').prepend('<%= escape_javascript(render_flash_messages) %>');
-$('#ingredients').html('<%= escape_javascript(render :partial => 'ingredients/list') %>');
+$('#ingredients').html('<%= escape_javascript(render partial: 'ingredients/list') %>');
diff --git a/app/views/ingredients/toggle_nutrient_column.js.erb b/app/views/ingredients/toggle_nutrient_column.js.erb
index 55cd8f1..8db6246 100644
--- a/app/views/ingredients/toggle_nutrient_column.js.erb
+++ b/app/views/ingredients/toggle_nutrient_column.js.erb
@@ -1,3 +1,3 @@
 $('div[id^=flash_]').remove();
 $('#content').prepend('<%= escape_javascript(render_flash_messages) %>');
-$('#nutrients').html('<%= escape_javascript(render :partial => 'ingredients/list_nutrients') %>');
+$('#nutrients').html('<%= escape_javascript(render partial: 'ingredients/list_nutrients') %>');
diff --git a/app/views/layouts/_body_tracking.html.erb b/app/views/layouts/_body_tracking.html.erb
index dbe471c..3537b53 100644
--- a/app/views/layouts/_body_tracking.html.erb
+++ b/app/views/layouts/_body_tracking.html.erb
@@ -1,3 +1,3 @@
 <% content_for :header_tags do %>
-  <%= stylesheet_link_tag 'body_tracking', :plugin => 'body_tracking' %>
+  <%= stylesheet_link_tag 'body_tracking', plugin: 'body_tracking' %>
 <% end %>
diff --git a/app/views/measurements/_form.html.erb b/app/views/measurements/_form.html.erb
index ab898e5..e8fded3 100644
--- a/app/views/measurements/_form.html.erb
+++ b/app/views/measurements/_form.html.erb
@@ -2,8 +2,8 @@
   <h2><%= t ".heading_new_measurement" %></h2>
 
   <%= labelled_form_for @measurement,
-                        :url => project_measurements_path(@project),
-                        :html => {:id => 'measurement-form'} do |f| %>
+                        url: project_measurements_path(@project),
+                        html: {id: 'measurement-form'} do |f| %>
     <%= error_messages_for @measurement %>
 
     <div class="box tabular">
@@ -17,19 +17,20 @@
             <%= ff.select :unit_id, unit_options, {label: ''} %>
             <%= ff.check_box :_destroy, {style: "display:none", label: ''} %>
             <%= link_to t(".button_delete_readout"), '#',
-              :class => 'icon icon-del',
-              :style => (@measurement.readouts.length > 1 ? "" : "display:none"),
-              :onclick => "deleteReadout(); return false;" %>
+              class: 'icon icon-del',
+              style: (@measurement.readouts.length > 1 ? "" : "display:none"),
+              onclick: "deleteReadout(); return false;" %>
           </p>
         <% end %>
       <% end %>
       <p>
-        <%= link_to t(".button_add_readout"), '#', :class => 'icon icon-add',
-          :onclick => 'addReadout(); return false;' %>
+        <%= link_to t(".button_add_readout"), '#', class: 'icon icon-add',
+          onclick: 'addReadout(); return false;' %>
       </p>
     </div>
     <%= submit_tag l(:button_create) %>
-    <%= link_to l(:button_cancel), "#", :onclick => '$("#add-measurement").hide()' %>
+    <%= link_to l(:button_cancel), "#",
+      onclick: '$("#add-measurement").hide(); return false;' %>
   <% end %>
   <hr>
 </div>
diff --git a/app/views/measurements/index.html.erb b/app/views/measurements/index.html.erb
index 9ca440b..f44596e 100644
--- a/app/views/measurements/index.html.erb
+++ b/app/views/measurements/index.html.erb
@@ -1,17 +1,17 @@
 <% content_for :sidebar do %>
-  <%= render :partial => 'body_trackers/sidebar' %>
+  <%= render partial: 'body_trackers/sidebar' %>
 <% end %>
 
 <div class="contextual">
   <% if User.current.allowed_to?(:manage_common, @project) %>
-    <%= link_to t(".link_new_measurement"), '#', :class => 'icon icon-add',
-      :onclick => '$("#add-measurement").show(); $("#measurement_name").focus(); return false;' %>
+    <%= link_to t(".link_new_measurement"), '#', class: 'icon icon-add',
+      onclick: '$("#add-measurement").show(); $("#measurement_name").focus(); return false;' %>
   <% end %>
 </div>
 
-<%= render :partial => 'measurements/form' %>
+<%= render partial: 'measurements/form' %>
 
 <h2><%= t ".heading" %></h2>
 <div id='measurements'>
-  <%= render :partial => 'measurements/list' %>
+  <%= render partial: 'measurements/list' %>
 </div>
diff --git a/app/views/quantities/_index.html.erb b/app/views/quantities/_index.html.erb
index 0aa4a6f..9e94879 100644
--- a/app/views/quantities/_index.html.erb
+++ b/app/views/quantities/_index.html.erb
@@ -1,5 +1,5 @@
-<%= render :partial => 'quantities/filters',
-  :locals => {:url => filter_project_quantities_path(@project)} %>
+<%= render partial: 'quantities/filters',
+  locals: {url: filter_project_quantities_path(@project)} %>
 
 <% if @quantities.any? { |q| q.persisted? } %>
   <table class="list">
@@ -68,7 +68,7 @@
               <%= labelled_form_for @quantity, url: quantity_path(@quantity), method: :patch,
                 remote: true, html: {id: 'quantity-edit-form'} do |f| %>
 
-                <%= render :partial => 'quantities/form', :locals => { :f => f } %>
+                <%= render partial: 'quantities/form', locals: {f: f} %>
                 <%= submit_tag l(:button_save) %>
                 <%=
                   link_to l(:button_cancel), "#",
diff --git a/app/views/quantities/index.html.erb b/app/views/quantities/index.html.erb
index 3069093..20d3803 100644
--- a/app/views/quantities/index.html.erb
+++ b/app/views/quantities/index.html.erb
@@ -1,11 +1,11 @@
 <% content_for :sidebar do %>
-  <%= render :partial => 'body_trackers/sidebar' %>
+  <%= render partial: 'body_trackers/sidebar' %>
 <% end %>
 
 <div class="contextual">
   <% if User.current.allowed_to?(:manage_common, @project) %>
-    <%= link_to t(".link_new_quantity"), '#', :class => 'icon icon-add',
-      :onclick => '$("#add-quantity").toggle(); $("#quantity_name").focus(); return false;' %>
+    <%= link_to t(".link_new_quantity"), '#', class: 'icon icon-add',
+      onclick: '$("#add-quantity").toggle(); $("#quantity_name").focus(); return false;' %>
   <% end %>
 </div>
 
@@ -13,9 +13,9 @@
   <h2><%= t ".heading_new_quantity" %></h2>
 
   <%= labelled_form_for @quantity,
-                        :url => project_quantities_path(@project),
-                        :html => {:id => 'quantity-add-form'} do |f| %>
-    <%= render :partial => 'quantities/form', :locals => { :f => f } %>
+                        url: project_quantities_path(@project),
+                        html: {id: 'quantity-add-form'} do |f| %>
+    <%= render partial: 'quantities/form', locals: {f: f} %>
     <%= submit_tag l(:button_create) %>
     <%= link_to l(:button_cancel), "#", onclick: '$("#add-quantity").hide(); return false;' %>
   <% end %>
@@ -24,5 +24,5 @@
 
 <h2><%= t ".heading" %></h2>
 <div id='quantities'>
-  <%= render :partial => 'quantities/index' %>
+  <%= render partial: 'quantities/index' %>
 </div>
diff --git a/app/views/quantities/index.js.erb b/app/views/quantities/index.js.erb
index 94e3c08..99235df 100644
--- a/app/views/quantities/index.js.erb
+++ b/app/views/quantities/index.js.erb
@@ -1,4 +1,4 @@
 $('div[id^=flash_]').remove();
 $('#content').prepend('<%= escape_javascript(render_flash_messages) %>');
-$('#quantities').html('<%= escape_javascript(render :partial => 'quantities/index') %>');
+$('#quantities').html('<%= escape_javascript(render partial: 'quantities/index') %>');
 $('#quantity_domain').trigger('change');
diff --git a/app/views/sources/index.html.erb b/app/views/sources/index.html.erb
index c077c9b..11b8d53 100644
--- a/app/views/sources/index.html.erb
+++ b/app/views/sources/index.html.erb
@@ -1,11 +1,11 @@
 <% content_for :sidebar do %>
-  <%= render :partial => 'body_trackers/sidebar' %>
+  <%= render partial: 'body_trackers/sidebar' %>
 <% end %>
 
 <div class="contextual">
   <% if User.current.allowed_to?(:manage_common, @project) %>
-    <%= link_to t(".link_new_source"), '#', :class => 'icon icon-add',
-      :onclick => '$("#add-source").show(); $("#source_name").focus(); return false;' %>
+    <%= link_to t(".link_new_source"), '#', class: 'icon icon-add',
+      onclick: '$("#add-source").show(); $("#source_name").focus(); return false;' %>
   <% end %>
 </div>
 
@@ -13,11 +13,11 @@
   <h2><%= t ".heading_new_source" %></h2>
 
   <%= labelled_form_for @source,
-                        :url => project_sources_path(@project),
-                        :html => {:id => 'source-form'} do |f| %>
-    <%= render :partial => 'sources/form', :locals => { :f => f } %>
+                        url: project_sources_path(@project),
+                        html: {id: 'source-form'} do |f| %>
+    <%= render partial: 'sources/form', locals: {f: f} %>
     <%= submit_tag l(:button_create) %>
-    <%= link_to l(:button_cancel), "#", :onclick => '$("#add-source").hide()' %>
+    <%= link_to l(:button_cancel), "#", onclick: '$("#add-source").hide(); return false;' %>
   <% end %>
   <hr>
 </div>
diff --git a/app/views/units/index.html.erb b/app/views/units/index.html.erb
index 8af07b9..d8b957e 100644
--- a/app/views/units/index.html.erb
+++ b/app/views/units/index.html.erb
@@ -1,11 +1,11 @@
 <% content_for :sidebar do %>
-  <%= render :partial => 'body_trackers/sidebar' %>
+  <%= render partial: 'body_trackers/sidebar' %>
 <% end %>
 
 <div class="contextual">
   <% if User.current.allowed_to?(:manage_common, @project) %>
-    <%= link_to t(".link_new_unit"), '#', :class => 'icon icon-add',
-      :onclick => '$("#add-unit").show(); $("#unit_shortname").focus(); return false;' %>
+    <%= link_to t(".link_new_unit"), '#', class: 'icon icon-add',
+      onclick: '$("#add-unit").show(); $("#unit_shortname").focus(); return false;' %>
   <% end %>
 </div>
 
@@ -13,11 +13,11 @@
   <h2><%= t ".heading_new_unit" %></h2>
 
   <%= labelled_form_for @unit,
-                        :url => project_units_path(@project),
-                        :html => {:id => 'unit-form'} do |f| %>
-    <%= render :partial => 'units/form', :locals => { :f => f } %>
+                        url: project_units_path(@project),
+                        html: {id: 'unit-form'} do |f| %>
+    <%= render partial: 'units/form', locals: {f: f} %>
     <%= submit_tag l(:button_create) %>
-    <%= link_to l(:button_cancel), "#", :onclick => '$("#add-unit").hide()' %>
+    <%= link_to l(:button_cancel), "#", onclick: '$("#add-unit").hide(); return false;' %>
   <% end %>
   <hr>
 </div>
diff --git a/config/routes.rb b/config/routes.rb
index bc792e0..12f2f3f 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -3,13 +3,13 @@
 
 resources :projects do
   shallow do
-    resources :body_trackers, :only => [:index] do
+    resources :body_trackers, only: [:index] do
       post 'defaults', on: :collection
     end
-    resources :measurements, :only => [:index, :create, :destroy] do
+    resources :measurements, only: [:index, :create, :destroy] do
       post 'toggle', on: :member
     end
-    resources :ingredients, :only => [:index, :create, :destroy] do
+    resources :ingredients, only: [:index, :create, :destroy] do
       post 'toggle', on: :member
       collection do
         get 'nutrients'
@@ -19,8 +19,8 @@ resources :projects do
         post 'import'
       end
     end
-    resources :sources, :only => [:index, :create, :destroy]
-    resources :quantities, :only => [:index, :create, :edit, :update, :destroy] do
+    resources :sources, only: [:index, :create, :destroy]
+    resources :quantities, only: [:index, :create, :edit, :update, :destroy] do
       member do
         post 'toggle'
         post 'move/:direction', to: 'quantities#move', as: :move
@@ -30,6 +30,6 @@ resources :projects do
         get 'filter'
       end
     end
-    resources :units, :only => [:index, :create, :destroy]
+    resources :units, only: [:index, :create, :destroy]
   end
 end
diff --git a/db/migrate/001_create_schema.rb b/db/migrate/001_create_schema.rb
index 7e280fc..acba558 100644
--- a/db/migrate/001_create_schema.rb
+++ b/db/migrate/001_create_schema.rb
@@ -16,8 +16,8 @@ class CreateSchema < ActiveRecord::Migration
       t.boolean :primary
       # fields for awesome_nested_set
       t.references :parent
-      t.integer :lft, :null => false, :index => true
-      t.integer :rgt, :null => false, :index => true
+      t.integer :lft, null: false, index: true
+      t.integer :rgt, null: false, index: true
       t.timestamps null: false
     end
 
diff --git a/init.rb b/init.rb
index e8a1603..505153c 100644
--- a/init.rb
+++ b/init.rb
@@ -15,23 +15,23 @@ Redmine::Plugin.register :body_tracking do
 
   project_module :body_tracking do
     permission :view_body_trackers, {
-      :body_trackers => [:index],
-      :measurements => [:index],
-      :ingredients => [:index, :nutrients, :filter, :filter_nutrients],
-      :sources => [:index],
-      :quantities => [:index, :parents, :filter],
-      :units => [:index],
+      body_trackers: [:index],
+      measurements: [:index],
+      ingredients: [:index, :nutrients, :filter, :filter_nutrients],
+      sources: [:index],
+      quantities: [:index, :parents, :filter],
+      units: [:index],
     }, read: true
     permission :manage_common, {
-      :body_trackers => [:defaults],
-      :measurements => [:create, :destroy, :toggle],
-      :ingredients => [:create, :destroy, :toggle, :import, :toggle_nutrient_column],
-      :sources => [:create, :destroy],
-      :quantities => [:create, :edit, :update, :destroy, :toggle, :move],
-      :units => [:create, :destroy],
+      body_trackers: [:defaults],
+      measurements: [:create, :destroy, :toggle],
+      ingredients: [:create, :destroy, :toggle, :import, :toggle_nutrient_column],
+      sources: [:create, :destroy],
+      quantities: [:create, :edit, :update, :destroy, :toggle, :move],
+      units: [:create, :destroy],
     }, require: :loggedin
   end
 
-  menu :project_menu, :body_trackers, {:controller => 'body_trackers', :action => 'index'},
-    :caption => :body_trackers_menu_caption, :before => :settings, :param => :project_id
+  menu :project_menu, :body_trackers, {controller: 'body_trackers', action: 'index'},
+    caption: :body_trackers_menu_caption, before: :settings, param: :project_id
 end