//
// Copyright (C) 2001 ArsDigita Corporation. All Rights Reserved.
//
// The contents of this file are subject to the ArsDigita Public 
// License (the "License"); you may not use this file except in
// compliance with the License. You may obtain a copy of
// the License at http://www.arsdigita.com/ADPL.txt
//
// Software distributed under the License is distributed on an "AS
// IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
// implied. See the License for the specific language governing
// rights and limitations under the License.
//

model com.arsdigita.navigation;

// This query returns related items with an exact category map,
// It has replaced the one below since, although it is technically
// correct, it was found to return faaaar to many rows!
query RelatedItems {
   BigDecimal itemID;
   BigDecimal workingID;
   String title;
   String type;
   String objectType;

   do {
       select distinct i.item_id, 
              p.title, 
              t.label,
              o.object_type,
              i.master_id
         from cms_items i, 
              cms_bundles b,
              acs_objects o,
              cms_pages p, 
              content_types t,
              cat_object_category_map ocm1,
              cat_object_category_map ocm2,
              cat_cat_subcat_trans_index ccs1
        where i.version = 'live'
          and b.bundle_id not in :bundleIDs
          and p.item_id = i.item_id
          and i.item_id = o.object_id
          and t.type_id = i.type_id
          and i.parent_id = b.bundle_id
          and i.language = b.default_language
          and ocm1.object_id = b.bundle_id
          and ocm1.category_id = ocm2.category_id
          and ocm2.object_id = :bundleID
          and ocm2.category_id = ccs1.subcategory_id
          and ccs1.category_id = :categoryID
   } map {
       itemID = i.item_id;
       title = p.title;
       type = t.label;
       objectType = o.object_type;
       workingID = i.master_id;
   }
}


// The above query is not entirely clear since I've
// removed the nested queries in favour of joins
//
// The basic plan is:
//  Get all live content items
//     with a 'Subject' category matching
//     a subject category assigned to item foo
// 
// The complication is that it needs to treat
// subject categories heirarchically.

// To do this we pull out all 'subject' categories,
// then restrict it by those that are assigned to the
// current item.

// This query should be equivalent to the one above
// select i.item_id, 
//         p.title, 
//         t.label
//    from cms_items i, 
//         cms_pages p, 
//         content_types t,
//         cat_object_category_map ocm1
//   where i.version = 'live'
//     and i.item_id <> 734036
//     and p.item_id = i.item_id
//     and t.type_id = i.type_id
//     and ocm1.object_id = i.item_id
//     and ocm1.category_id in (
//         -- Get all categories with the specified
//         -- category purpose
//         select ccs1.subcategory_id
//           from cat_cat_subcat_trans_index ccs1,
//                cat_category_purpose_map m
//          where m.purpose_id = 9909
//            and ccs1.category_id = m.category_id
//            and ccs.subcategory_id in (
//                -- Get all categories & children for item
//                select ccs2.subcategory_id
//                  from cat_object_category_map ocm2,
//                       cat_cat_subcat_trans_index ccs2
//                 where ocm2.object_id = 734036
//                   and ocm2.category_id = ccs2.category_id
//                )
//         );
//