Labels and hints with associations always lookup to association name and not to attribute with _id

lib/simple_form/components/base.rb

@@ -39,6 +39,11 @@ module SimpleForm
         self.class.basename
       end
 
+      # Find reflection name when available, otherwise use attribute
+      def reflecion_name_or_attribute
+        @refletion_name_or_attribute ||= (reflection ? reflection.name : attribute)
+      end
+
       # Default html options for a component. Passed as a parameter for simple
       # form component using component name as follows:
       #
@@ -85,9 +90,9 @@ module SimpleForm
       def translate(default='')
         action  = template.params[:action] if template.respond_to?(:params)
         lookups =  []
-        lookups << :"#{object_name}.#{action}.#{attribute}" if action.present?
-        lookups << :"#{object_name}.#{attribute}"
-        lookups << :"#{attribute}"
+        lookups << :"#{object_name}.#{action}.#{reflecion_name_or_attribute}" if action.present?
+        lookups << :"#{object_name}.#{reflecion_name_or_attribute}"
+        lookups << :"#{reflecion_name_or_attribute}"
         lookups << default
         I18n.t(lookups.shift, :scope => :"simple_form.#{basename.to_s.pluralize}", :default => lookups)
       end

lib/simple_form/components/label.rb

@@ -77,7 +77,7 @@ module SimpleForm
       # available or just use the attribute itself humanized.
       def translate_label
         default = if object.class.respond_to?(:human_attribute_name)
-          object.class.human_attribute_name(attribute.to_s)
+          object.class.human_attribute_name(reflecion_name_or_attribute.to_s)
         else
           attribute.to_s.humanize
         end

test/components/hint_test.rb

@@ -2,9 +2,10 @@ require 'test_helper'
 
 class ErrorTest < ActionView::TestCase
 
-  def with_hint_for(object, attribute, type, options={})
+  def with_hint_for(object, attribute, type, options={}, setup_association=false, &block)
     simple_form_for object do |f|
       f.attribute  = attribute
+      f.reflection = Association.new(Company, :company, {}) if setup_association
       f.input_type = type
       f.options    = options
 
@@ -66,6 +67,15 @@ class ErrorTest < ActionView::TestCase
     end
   end
 
+  test 'hint should use i18n with lookup for association name' do
+    store_translations(:en, :simple_form => { :hints => {
+      :user => { :company => 'My company!' }
+    } } ) do
+      with_hint_for @user, :company_id, :string, {}, true
+      assert_select 'span.hint', /My company!/
+    end
+  end
+
   test 'hint should generate properly when object is not present' do
     with_hint_for :project, :name, :string, :hint => 'Test without object'
     assert_select 'span.hint', 'Test without object'

test/components/label_test.rb

@@ -6,9 +6,10 @@ class LabelTest < ActionView::TestCase
     SimpleForm::Components::Label.reset_i18n_cache :translate_required_html
   end
 
-  def with_label_for(object, attribute, type, options={})
+  def with_label_for(object, attribute, type, options={}, setup_association=false)
     simple_form_for object do |f|
       f.attribute  = attribute
+      f.reflection = Association.new(Company, :company, {}) if setup_association
       f.input_type = type
       f.options    = options
 
@@ -39,6 +40,11 @@ class LabelTest < ActionView::TestCase
     assert_select 'label[for=user_description]', /User Description!/
   end
 
+  test 'label should use human attribute name based on association name' do
+    with_label_for @user, :company, :string, {}, true
+    assert_select 'label', /Company Human Name!/
+  end
+
   test 'label should use i18n based on model, action, and attribute to lookup translation' do
     store_translations(:en, :simple_form => { :labels => { :user => {
       :new => { :description => 'Nova descrição' }
@@ -65,6 +71,15 @@ class LabelTest < ActionView::TestCase
     end
   end
 
+  test 'label should use i18n with lookup for association name' do
+    store_translations(:en, :simple_form => { :labels => {
+      :user => { :company => 'My company!' }
+    } } ) do
+      with_label_for @user, :company_id, :string, {}, true
+      assert_select 'label[for=user_company_id]', /My company!/
+    end
+  end
+
   test 'label should have css class from type' do
     with_label_for @user, :name, :string
     assert_select 'label.string'

test/support/models.rb

@@ -45,9 +45,14 @@ class User < OpenStruct
 
   def self.human_attribute_name(attribute)
     case attribute
-      when 'name' then 'Super User Name!'
-      when 'description' then 'User Description!'
-      else attribute.humanize
+      when 'name'
+        'Super User Name!'
+      when 'description'
+        'User Description!'
+      when 'company'
+        'Company Human Name!'
+      else
+        attribute.humanize
     end
   end