This commit was manufactured by cvs2svn to create branch 'init'.

[helm.git] / helm / ocaml / mathql_interpreter / property.ml

diff --git a/helm/ocaml/mathql_interpreter/property.ml b/helm/ocaml/mathql_interpreter/property.ml
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-(* Copyright (C) 2000, HELM Team.
- * 
- * This file is part of HELM, an Hypertextual, Electronic
- * Library of Mathematics, developed at the Computer Science
- * Department, University of Bologna, Italy.
- * 
- * HELM is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- * 
- * HELM is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with HELM; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- * MA  02111-1307, USA.
- * 
- * For details, see the HELM World-Wide-Web page,
- * http://cs.unibo.it/helm/.
- *)
-
-(*
- *
- *)
-
-open Dbconn;;
-open Utility;;
-open Intersect;;
-
-
-let getpid p =
-  if (p = "refObj") then "F"
-  else "B"
-;;
-
-(*
- * implementazione delle funzioni dublin core
- *)
-let rec property_ex rop path inv = function
-    [] -> []
-  | s::tl -> let mprop = fst path in
-             print_endline mprop;
-             let l_sub_p = snd path in
-              
-            let prop = (if (l_sub_p <> []) then List.hd l_sub_p 
-                       else "") 
-            in 
-             match mprop with
-              
-              "refObj" (* in base al valore di prop restituisco i valori del relativo campo della tabella relativa all'uri rappresentata da s *)
-            | "backPointer" ->
-              print_endline mprop;
-              let mpid = getpid mprop in
-              let res =
-              let c = pgc () in
-              let tv = pgresult_to_string (c#exec ("select distinct id from registry where uri='" ^ s ^ "' order by id")) in
-              let q = "select distinct t" ^ tv ^ "." ^ prop ^  "  from t" ^ tv ^ " where prop_id= '" ^ mpid ^ "' order by t" ^ tv ^ "." ^ prop in
-                print_endline q;
-               pgresult_to_string_list (c#exec q)
-              in
-                append (res,(property_ex rop path inv tl))
-              
-                          (*Rimane da capire cosa restituire  nelle inverse!!!!*)
-                          
-              
-             | "refRel"
-            | "refSort" ->
-            if inv then     (* restituisco gli uri che il valore della prop richiesta uguale a s *)
-               let res =
-               let c = pgc () in
-              let q = ("select distinct h" ^ mprop ^ ".uri from h" ^ mprop ^ " where h" ^ mprop ^ "." ^ prop ^ "= '" ^ s ^ "' order by h" ^ mprop ^ ".uri") in
-                print_endline q;
-                pgresult_to_string_list (c#exec q)
-               in
-                 append (res,(property_ex rop path inv tl))
-               
-            else
-              let res =         (* restituisco il valore della prop relativo all'uri rappresentato da s*)
-               let c = pgc () in
-               let q = ("select distinct h" ^ mprop ^ "." ^ prop ^" from h" ^ mprop ^ " where h" ^ mprop ^ ".uri = '" ^ s ^ "' order by h" ^ mprop ^ "." ^ prop) in
-                 pgresult_to_string_list (c#exec q)
-              in
-                 append (res,(property_ex rop path inv tl))
-            
-            
-            | _ ->        (* metadati DC  !!!! Controllare se i nomi delle tabelle cominciano con h !!!!*)
-            print_endline "DC";
-            if inv then
-               let res =
-               let c = pgc () in
-              let q = ("select " ^ mprop ^ ".uri from " ^ mprop ^ " where " ^ mprop ^ ".value = '" ^ s ^ "'") in
-                print_endline q;
-                pgresult_to_string_list (c#exec q)
-               in
-                 append (res,(property_ex rop path inv tl))
-             else
-              let res =
-               let c = pgc () in
-              let q = ("select " ^ mprop ^ ".value from " ^ mprop ^ " where " ^ mprop ^ ".uri = '" ^ s ^ "'") in
-                pgresult_to_string_list (c#exec q)
-               in
-                 append (res,(property_ex rop path inv tl))
-
-;;
-