fix: location field new view

lib/avo/base_resource.rb

@@ -377,11 +377,9 @@ def hydrate_model_with_default_values
           !field.computed
         end
         .map do |field|
-          id = field.id
           value = field.value
 
           if field.type == "belongs_to"
-            id = field.foreign_key.to_sym
 
             reflection = @model._reflections[@params[:via_relation]]
 
@@ -398,17 +396,15 @@ def hydrate_model_with_default_values
             end
           end
 
-          [id, value]
+          [field, value]
         end
         .to_h
-        .select do |id, value|
+        .select do |_, value|
           value.present?
         end
 
-      default_values.each do |id, value|
-        if @model.send(id).nil?
-          @model.send("#{id}=", value)
-        end
+      default_values.each do |field, value|
+        field.assign_value record: @model, value: value
       end
     end
 

lib/avo/fields/base_field.rb

@@ -273,6 +273,15 @@ def updatable
         !is_readonly? && visible?
       end
 
+      # Used by Avo to fill the record with the default value on :new and :edit views
+      def assign_value(record:, value:)
+        id = type == "belongs_to" ? foreign_key : database_id
+
+        if record.send(id).nil?
+          record.send("#{id}=", value)
+        end
+      end
+
       private
 
       def model_or_class(model)

lib/avo/fields/location_field.rb

@@ -73,6 +73,14 @@ def value_present?
 
         value.present?
       end
+
+      def assign_value(record:, value:)
+        return super if stored_as.blank?
+
+        stored_as.each_with_index do |database_id, index|
+          record.send("#{database_id}=", value[index])
+        end
+      end
     end
   end
 end

spec/system/avo/location_field_spec.rb

@@ -6,6 +6,14 @@
   describe "without value" do
     let(:city) { create :city, latitude: nil, longitude: nil }
 
+    context "new" do
+      it "shows empty location field" do
+        visit "/admin/resources/cities/new"
+
+        expect(find_field_element("coordinates")).to have_text ""
+      end
+    end
+
     context "show" do
       it "shows empty location field" do
         visit "/admin/resources/cities/#{city.id}"