Trying to define named_scopes and other ActiveRecord relationships on all models


Trying to define named_scopes and other ActiveRecord relationships on all models



I'm trying to define a named_scope for all my models in a Rails application.

Presently, I've been able to get close to this by writing an initializer for ActiveRecord::Base and putting regular methods in there. Of course, this offers no real advantage when it comes to creating query chains and is probably the least rails-ey way of getting the job done.

However, it doesn't work when I start to try and use the has_many, named_scope, etc... ActiveRecord methods.

While I understand my named_scope is likely not correct, I really only want help getting the named_scope defined. Also, I am not interested in any Ruby ACL GEMs at present.

In initializers/:

class ActiveRecord::Base    has_many(:permissions)   named_scope(:acl_check, lambda do |user_id, method|     	{     		:include => :permission,     		:conditions => [     			["permissions.user_id=?", user_id],     			["permissions.method=?", method],     			["permissions.classname=?", self.class.name]     		]     	}   end)      # Conducts a permission check for the current instance.     def check_acl?(user_id, method)      	# Perform the permission check by User.     	permission_check = Permission.find_by_user_id_and_instance_id_and_classname_and_method(user_id, self.id, self.class.name, method)     	if(permission_check)     		# If the row exists, we generate a hit.     		return(true)     	end      	# Perform the permission check by Role.      	# Otherwise, the permissions check was a miss.     	return(false)      end  end 



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