[RFC] Add per-store configurable locales

api/app/helpers/spree/api/api_helpers.rb

@@ -168,7 +168,7 @@ def required_fields_for(model)
 
       @@store_attributes = [
         :id, :name, :url, :meta_description, :meta_keywords, :seo_title,
-        :mail_from_address, :default_currency, :code, :default
+        :mail_from_address, :default_currency, :code, :default, :available_locales
       ]
 
       @@store_credit_history_attributes = [

api/spec/requests/spree/api/stores_controller_spec.rb

@@ -35,7 +35,8 @@ module Spree
             "mail_from_address" => "[email protected]",
             "default_currency" => nil,
             "code" => store.code,
-            "default" => true
+            "default" => true,
+            "available_locales" => ["en"]
           },
           {
             "id" => non_default_store.id,
@@ -47,7 +48,8 @@ module Spree
             "mail_from_address" => "[email protected]",
             "default_currency" => nil,
             "code" => non_default_store.code,
-            "default" => false
+            "default" => false,
+            "available_locales" => ["en"]
           }
         ])
       end
@@ -64,7 +66,8 @@ module Spree
           "mail_from_address" => "[email protected]",
           "default_currency" => nil,
           "code" => store.code,
-          "default" => true
+          "default" => true,
+          "available_locales" => ["en"]
         )
       end
 

backend/app/views/spree/admin/stores/_form.html.erb

@@ -58,3 +58,14 @@
     { class: "custom-select fullwidth" } %>
   <%= f.error_message_on :cart_tax_country_iso %>
 <% end %>
+
+<%= f.field_container :available_locales do %>
+  <%= f.label :available_locales %>
+  <%= f.select :available_locales,
+    Spree.i18n_available_locales.map { |locale|
+      [I18n.t('spree.i18n.this_file_language', locale: locale, default: locale.to_s, fallback: false), locale]
+    }.sort,
+    { },
+    { class: 'custom-select fullwidth', multiple: true } %>
+  <%= f.error_message_on :default_currency %>
+<% end %>

core/app/models/spree/store.rb

@@ -31,6 +31,24 @@ class << self
       deprecate :by_url, "Spree::Store.by_url is DEPRECATED", deprecator: Spree::Deprecation
     end
 
+    def available_locales
+      locales = super()
+      if locales
+        super().split(",").map(&:to_sym)
+      else
+        Spree.i18n_available_locales
+      end
+    end
+
+    def available_locales=(locales)
+      locales = locales.reject(&:blank?)
+      if locales.empty?
+        super(nil)
+      else
+        super(locales.map(&:to_s).join(","))
+      end
+    end
+
     def self.current(store_key)
       Spree::Deprecation.warn "Spree::Store.current is DEPRECATED"
       current_store = Store.find_by(code: store_key) || Store.by_url(store_key).first if store_key

core/db/migrate/20180313220213_add_available_locales_to_stores.rb

@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+class AddAvailableLocalesToStores < ActiveRecord::Migration[5.1]
+  def change
+    change_table :spree_stores do |t|
+      t.column :available_locales, :string
+    end
+  end
+end

core/spec/models/spree/store_spec.rb

@@ -96,4 +96,61 @@
       end
     end
   end
+
+  describe '#available_locales' do
+    let(:store) { described_class.new(available_locales: locales) }
+    subject { store.available_locales }
+
+    context 'with available_locales: []' do
+      let(:locales) { [] }
+
+      it "returns all available locales" do
+        expect(subject).to eq([:en])
+      end
+
+      it "serializes as nil" do
+        expect(store[:available_locales]).to be nil
+      end
+    end
+
+    context 'with available_locales: [:en]' do
+      let(:locales) { [:en] }
+
+      it "returns [:en]" do
+        expect(subject).to eq([:en])
+      end
+
+      it "serializes correctly" do
+        expect(store[:available_locales]).to eq("en")
+      end
+    end
+
+    context 'with available_locales: [:en, :fr]' do
+      let(:locales) { [:en, :fr] }
+
+      it "returns [:fr]" do
+        expect(subject).to eq([:en, :fr])
+      end
+
+      it "serializes correctly" do
+        expect(store[:available_locales]).to eq("en,fr")
+      end
+    end
+
+    context 'with available_locales: [:fr]' do
+      let(:locales) { [:fr] }
+
+      it "returns [:fr]" do
+        expect(subject).to eq([:fr])
+      end
+    end
+
+    context 'with available_locales: ["fr"]' do
+      let(:locales) { ["fr"] }
+
+      it "returns symbols [:fr]" do
+        expect(subject).to eq([:fr])
+      end
+    end
+  end
 end