Allow producer to edit their products on hubs' orders

app/helpers/spree/admin/orders_helper.rb

@@ -142,6 +142,23 @@ def quantity_field_tag(manifest_item)
         end
         number_field_tag :quantity, manifest_item.quantity, html_options
       end
+
+      def prepare_shipment_manifest(shipment)
+        manifest = shipment.manifest
+
+        if distributor_allows_order_editing?(shipment.order)
+          supplier_ids = spree_current_user.enterprises.ids
+          manifest.select! { |mi| supplier_ids.include?(mi.variant.supplier_id) }
+        end
+
+        manifest
+      end
+
+      def distributor_allows_order_editing?(order)
+        order.distributor&.enable_producers_to_edit_orders &&
+          spree_current_user.can_manage_line_items_in_orders_only?
+      end
+
     end
   end
 end

app/models/spree/ability.rb

@@ -354,12 +354,22 @@ def add_order_management_abilities(user)
     end
 
     def add_manage_line_items_abilities(user)
-      can [:admin, :read, :index], Spree::Order do |order|
-        if order.distributor&.enable_producers_to_edit_orders
-          user_enterprises_ids = user.enterprises.ids
-          order.variants.any? { |variant| user_enterprises_ids.include?(variant.supplier_id) }
-        end
+      can_edit_order_lambda = lambda do |order|
+        return unless order.distributor&.enable_producers_to_edit_orders
+
+        order.variants.any? { |variant| user.enterprises.ids.include?(variant.supplier_id) }
+      end
+
+      can [:admin, :read, :index, :edit, :update], Spree::Order do |order|
+        can_edit_order_lambda.call(order)
       end
+      can [:admin, :index, :create, :destroy, :update], Spree::LineItem do |item|
+        can_edit_order_lambda.call(item.order)
+      end
+      can [:index, :create, :add, :read, :edit, :update], Spree::Shipment do |shipment|
+        can_edit_order_lambda.call(shipment.order)
+      end
+
     end
 
     def add_relationship_management_abilities(user)

app/models/spree/line_item.rb

@@ -108,6 +108,13 @@ class LineItem < ApplicationRecord
         where(spree_adjustments: { id: nil })
     }
 
+    scope :editable_by_producers, ->(enterprises_ids) {
+      joins(:variant, order: :distributor).where(
+        distributor: { enable_producers_to_edit_orders: true },
+        spree_variants: { supplier_id: enterprises_ids }
+      )
+    }
+
     def copy_price
       return unless variant
 

app/models/spree/user.rb

@@ -162,6 +162,9 @@ def can_manage_line_items_in_orders?
       end
     end
 
+    def can_manage_line_items_in_orders_only?
+      !can_manage_orders? && can_manage_line_items_in_orders?
+    end
 
     protected
 

app/services/permissions/order.rb

@@ -43,7 +43,13 @@ def visible_line_items
 
     # Any line items that I can edit
     def editable_line_items
-      Spree::LineItem.where(order_id: editable_orders.select(:id))
+      if @user.can_manage_line_items_in_orders_only?
+        Spree::LineItem.editable_by_producers(
+          @permissions.managed_enterprises.select("enterprises.id")
+        )
+      else
+        Spree::LineItem.where(order_id: editable_orders.select(:id))
+      end
     end
 
     private

app/views/spree/admin/orders/_shipment_manifest.html.haml

@@ -1,4 +1,4 @@
-- shipment.manifest.each do |item|
+- prepare_shipment_manifest(shipment).each do |item|
   - line_item = order.find_line_item_by_variant(item.variant)
 
   - if line_item.present?