Best way to implement automatic with_scope for all find meth

Rails
1

I have a situation where I need to have all find methods on a object
automatically scoped to a certain condition, ie

MyObject.with_scope( :find => { :conditions => “x = ‘foo’” }) where
‘foo’ is something that is found in the user session.

obviously the model is not going to know anything about the session so
i can’t do something like

class MyObject < ActiveRecord::Base

alias_method :orig_find, :find
def self.find(*args)
with_scope { :find => { :conditions => [“x = ?”, @current_user.x] })
orig_find(*args)
end
end
end

(not even sure if that would be even close to how it MIGHT be
implemented).

i other words, i want to get around having to do

mo = MyObject.find_by_x(x) or having to specify the conditions ALL the
time

any assistance would be appreciated.

Chris

2

hi,
try the meantime_filter plugin

class BooksController < ApplicationController
meantime_filter :scope_user
public
def index; list; render :action=>‘list’; end

def list
@books = Book.find(:all, :include=>[:user])
end

private
def scope_user
if logged_in?
Book.with_scope(
{:find=>{:conditions=>[“ubooks.user_id = ?”, current_user.id]
}}, &block)
else; yield; end
end

3

Also look at the scoped_access plugin. See:

http://habtm.com/articles/2006/02/22/nested-with_scope

I’m pretty sure it’s part of Edge Rails and will be standard in the next
major release. The plugin works well for now.

Chris H. wrote:

I have a situation where I need to have all find methods on a object
automatically scoped to a certain condition, ie

MyObject.with_scope( :find => { :conditions => “x = ‘foo’” }) where
‘foo’ is something that is found in the user session.

obviously the model is not going to know anything about the session so
i can’t do something like

class MyObject < ActiveRecord::Base

alias_method :orig_find, :find
def self.find(*args)
with_scope { :find => { :conditions => [“x = ?”, @current_user.x] })
orig_find(*args)
end
end
end

(not even sure if that would be even close to how it MIGHT be
implemented).

i other words, i want to get around having to do

mo = MyObject.find_by_x(x) or having to specify the conditions ALL the
time

any assistance would be appreciated.

Chris