Is there any way to write this working query :
Admin.select("DISTINCT `admins`.*").joins("LEFT OUTER JOIN `admins_roles` ON `admins_roles`.`admin_id` = `admins`.`id`").joins("LEFT OUTER JOIN `roles` ON `admins_roles`.`role_id` = `roles`.`id`").where("roles.resource_type IS NULL AND roles.name = ?", "manager")
in Rails ActiveRecord "dialect" ?
I tried ( Admins and Roles are associated w an HMABT association
Admin.joins(:roles).where(:roles => {:resource_type => "", :name => :manager}) this doesn't work
If I only write : Admin.joins(:roles).where(:roles => {:name => :manager}) this works, but I get all ;manager with any resource_type
thanks for feedback