Enum site settings can have translatable names in dropdown. Add setting for how often users get digest emails by default: default_digest_email_frequency.

app/assets/javascripts/admin/models/site_setting.js

@@ -81,10 +81,17 @@ Discourse.SiteSetting = Discourse.Model.extend({
   },
 
   validValues: function() {
-    var vals;
+    var vals, setting;
     vals = Em.A();
+    setting = this;
     _.each(this.get('valid_values'), function(v) {
-      if(v.length > 0) vals.addObject({ name: v, value: v });
+      if (v.name && v.name.length > 0) {
+        if (setting.translate_names) {
+          vals.addObject({name: I18n.t(v.name), value: v.value});
+        } else {
+          vals.addObject(v);
+        }
+      }
     });
     return vals;
   }.property('valid_values'),

app/models/digest_email_site_setting.rb

@@ -0,0 +1,22 @@
+require_dependency 'enum_site_setting'
+
+class DigestEmailSiteSetting < EnumSiteSetting
+
+  def self.valid_value?(val)
+    val.blank? or values.any? { |v| v[:value] == val.to_s }
+  end
+
+  def self.values
+    @values ||= [
+      {name: 'never',           value: ''   },
+      {name: 'daily',           value: '1'  },
+      {name: 'weekly',          value: '7'  },
+      {name: 'every_two_weeks', value: '14' }
+    ]
+  end
+
+  def self.translate_names?
+    true
+  end
+
+end

app/models/locale_site_setting.rb

@@ -1,11 +1,15 @@
-class LocaleSiteSetting
+require_dependency 'enum_site_setting'
+
+class LocaleSiteSetting < EnumSiteSetting
 
   def self.valid_value?(val)
     supported_locales.include?(val)
   end
 
   def self.values
-    supported_locales
+    supported_locales.map do |l|
+      {name: l, value: l}
+    end
   end
 
 

app/models/s3_region_site_setting.rb

@@ -1,9 +1,25 @@
-class S3RegionSiteSetting
+require_dependency 'enum_site_setting'
+
+class S3RegionSiteSetting < EnumSiteSetting
   def self.valid_value?(val)
-    values.include? val
+    valid_values.include? val
   end
 
   def self.values
-    @values ||= ['', 'us-east-1', 'us-west-1', 'us-west-2', 'eu-west-1', 'ap-southeast-1', 'ap-southeast-2', 'ap-northeast-1', 'sa-east-1'].sort
+    @values ||= valid_values.sort.map {|x| {name: x, value: x} }
+  end
+
+  private
+
+  def self.valid_values
+    [ '',
+      'us-east-1',
+      'us-west-1',
+      'us-west-2',
+      'eu-west-1',
+      'ap-southeast-1',
+      'ap-southeast-2',
+      'ap-northeast-1',
+      'sa-east-1' ]
   end
 end

app/models/site_setting.rb

@@ -115,6 +115,7 @@ class SiteSetting < ActiveRecord::Base
 
   setting(:email_time_window_mins, 10)
   setting(:email_posts_context, 5)
+  setting(:default_digest_email_frequency, '7', enum: 'DigestEmailSiteSetting')
 
   # How many characters we can import into a onebox
   setting(:onebox_max_chars, 5000)

app/models/user.rb

@@ -55,6 +55,7 @@ class User < ActiveRecord::Base
   before_save :update_username_lower
   before_save :ensure_password_is_hashed
   after_initialize :add_trust_level
+  after_initialize :set_default_email_digest
 
   after_save :update_tracked_topics
 
@@ -598,6 +599,17 @@ class User < ActiveRecord::Base
     )
   end
 
+  def set_default_email_digest
+    if has_attribute?(:email_digests) && self.email_digests.nil?
+      if SiteSetting.default_digest_email_frequency.blank?
+        self.email_digests = false
+      else
+        self.email_digests = true
+        self.digest_after_days ||= SiteSetting.default_digest_email_frequency.to_i if has_attribute?(:digest_after_days)
+      end
+    end
+  end
+
   private
 
   def self.discourse_hub_nickname_operation

config/locales/client.en.yml

@@ -100,6 +100,10 @@ en:
     read_more: 'read more'
     more: "More"
     less: "Less"
+    never: "never"
+    daily: "daily"
+    weekly: "weekly"
+    every_two_weeks: "every two weeks"
     character_count:
       one: "{{count}} character"
       other: "{{count}} characters"
@@ -1342,3 +1346,4 @@ en:
         reset: 'reset to default'
         none: 'none'
 
+

config/locales/server.en.yml

@@ -667,6 +667,7 @@ en:
 
     allow_uploaded_avatars: "Allow users to upload their custom avatars"
     allow_animated_avatars: "Allow users to use animated gif for avatars"
+    default_digest_email_frequency: "How often users receive digest emails by default. They can change this setting in their preferences."
 
   notification_types:
     mentioned: "%{display_username} mentioned you in %{link}"

db/migrate/20130823201420_drop_defaults_on_email_digest_columns_of_users.rb

@@ -0,0 +1,12 @@
+class DropDefaultsOnEmailDigestColumnsOfUsers < ActiveRecord::Migration
+  def up
+    change_column_default :users, :email_digests,     nil
+    change_column         :users, :digest_after_days, :integer, default: nil, null: true
+  end
+
+  def down
+    change_column_default :users, :email_digests,     true
+    change_column_default :users, :digest_after_days, 7
+    change_column         :users, :digest_after_days, :integer, default: 7, null: false
+  end
+end

lib/enum_site_setting.rb

@@ -0,0 +1,5 @@
+class EnumSiteSetting
+  def self.translate_names?
+    false
+  end
+end

lib/site_setting_extension.rb

@@ -80,7 +80,7 @@ module SiteSettingExtension
        description: description(s),
        default: v,
        type: type.to_s,
-       value: value.to_s}.merge( type == :enum ? {valid_values: enum_class(s).values} : {})
+       value: value.to_s}.merge( type == :enum ? {valid_values: enum_class(s).values, translate_names: enum_class(s).translate_names?} : {})
     end
   end
 

spec/components/js_locale_helper_spec.rb

@@ -85,8 +85,8 @@ describe JsLocaleHelper do
   end
 
   LocaleSiteSetting.values.each do |locale|
-    it "generates valid date helpers for #{locale} locale" do
-      js = JsLocaleHelper.output_locale(locale)
+    it "generates valid date helpers for #{locale[:value]} locale" do
+      js = JsLocaleHelper.output_locale(locale[:value])
       ctx = V8::Context.new
       ctx.load(Rails.root + 'app/assets/javascripts/locales/i18n.js')
       ctx.eval(js)

spec/components/site_setting_extenstion_spec.rb

@@ -134,6 +134,7 @@ describe SiteSettingExtension do
   describe 'enum setting' do
     before do
       @enum_class = Enum.new(:test)
+      @enum_class.stubs(:translate_names?).returns(false)
       settings.setting(:test_enum, 'en', enum: @enum_class)
       settings.refresh!
     end

spec/models/digest_email_site_setting_spec.rb

@@ -0,0 +1,18 @@
+require 'spec_helper'
+
+describe DigestEmailSiteSetting do
+  describe 'valid_value?' do
+    it 'returns true for a valid value as an int' do
+      DigestEmailSiteSetting.valid_value?(1).should be_true
+    end
+
+    it 'returns true for a valid value as a string' do
+      DigestEmailSiteSetting.valid_value?('1').should be_true
+    end
+
+    it 'returns false for an invalid value' do
+      DigestEmailSiteSetting.valid_value?(1.5).should be_false
+      DigestEmailSiteSetting.valid_value?('7 dogs').should be_false
+    end
+  end
+end

spec/models/locale_site_setting_spec.rb

@@ -14,7 +14,7 @@ describe LocaleSiteSetting do
 
   describe 'values' do
     it 'returns all the locales that we have translations for' do
-      expect(LocaleSiteSetting.values.sort).to eq(Dir.glob( File.join(Rails.root, 'config', 'locales', 'client.*.yml') ).map {|x| x.split('.')[-2]}.sort)
+      expect(LocaleSiteSetting.values.map {|x| x[:value]}.sort).to eq(Dir.glob( File.join(Rails.root, 'config', 'locales', 'client.*.yml') ).map {|x| x.split('.')[-2]}.sort)
     end
   end
 

spec/models/s3_region_site_setting_spec.rb

@@ -14,7 +14,7 @@ describe S3RegionSiteSetting do
 
   describe 'values' do
     it 'returns all the S3 regions and blank' do
-      expect(S3RegionSiteSetting.values.sort).to eq(['', 'us-east-1', 'us-west-1', 'us-west-2', 'eu-west-1', 'ap-southeast-1', 'ap-southeast-2', 'ap-northeast-1', 'sa-east-1'].sort)
+      expect(S3RegionSiteSetting.values.map {|x| x[:value]}.sort).to eq(['', 'us-east-1', 'us-west-1', 'us-west-2', 'eu-west-1', 'ap-southeast-1', 'ap-southeast-2', 'ap-northeast-1', 'sa-east-1'].sort)
     end
   end
 

spec/models/user_spec.rb

@@ -264,13 +264,28 @@ describe User do
     it { should_not be_approved }
     its(:approved_at) { should be_blank }
     its(:approved_by_id) { should be_blank }
-    its(:email_digests) { should be_true }
     its(:email_private_messages) { should be_true }
     its(:email_direct ) { should be_true }
     its(:time_read) { should == 0}
 
-    # Default to digests after one week
-    its(:digest_after_days) { should == 7 }
+    context 'digest emails' do
+      it 'defaults to digests every week' do
+        subject.email_digests.should be_true
+        subject.digest_after_days.should == 7
+      end
+
+      it 'uses default_digest_email_frequency' do
+        SiteSetting.stubs(:default_digest_email_frequency).returns(1)
+        subject.email_digests.should be_true
+        subject.digest_after_days.should == 1
+      end
+
+      it 'disables digests by default if site setting says so' do
+        SiteSetting.stubs(:default_digest_email_frequency).returns('')
+        subject.email_digests.should be_false
+      end
+    end
+
 
     context 'after_save' do
       before do