Merge pull request #310 from Quimbee/add-custom-method-model-option

Allow 'method_model' to be provided as an option to `filter`

Author: ldlsegovia

lib/activeadmin_addons/support/input_helpers/input_methods.rb

@@ -23,7 +23,8 @@ def association_name
     end
 
     def method_model
-      object_class.reflect_on_association(association_name).try(:klass) ||
+      @options[:method_model] ||
+        object_class.reflect_on_association(association_name).try(:klass) ||
         association_name.classify.constantize
     end
 

spec/lib/support/input_methods_spec.rb

@@ -5,11 +5,12 @@
     Class.new do
       include ActiveAdminAddons::InputMethods
 
-      attr_reader :method
+      attr_reader :method, :options
 
-      def initialize(object, method)
+      def initialize(object, method, options = {})
         @object = object
         @method = method
+        @options = options
       end
     end
   end
@@ -21,7 +22,8 @@ def initialize(object, method)
   end
 
   let(:method) { :category_id }
-  let(:instance) { dummy_class.new(object, method) }
+  let(:options) { {} }
+  let(:instance) { dummy_class.new(object, method, options) }
 
   def self.check_invalid_method(method_name)
     context "with nil method" do
@@ -68,6 +70,14 @@ def self.check_invalid_object(method_name)
         expect(instance.method_model).to be(Store::Manufacturer)
       end
     end
+
+    context "when a :method_model option is provided" do
+      let(:options) { { method_model: Store::Car } }
+
+      it "returns provided class" do
+        expect(instance.method_model).to be(Store::Car)
+      end
+    end
   end
 
   describe "#tableize_method" do