added support for hits table

[helm.git] / helm / ocaml / metadata / sqlStatements.ml

diff --git a/helm/ocaml/metadata/sqlStatements.ml b/helm/ocaml/metadata/sqlStatements.ml
index e02e9128bc68a35b6320c31dc274741d334113e0..35abac28b4fa58b7133e1fbf93f0af7bb2a95500 100644 (file)
--- a/helm/ocaml/metadata/sqlStatements.ml
+++ b/helm/ocaml/metadata/sqlStatements.ml
@@ -1,6 +1,30 @@
+(* Copyright (C) 2004-2005, 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://helm.cs.unibo.it/
+ *)
 
 open Printf;;
-type tbl = [ `RefObj| `RefSort| `RefRel| `ObjectName| `Owners| `Count]
+type tbl = [ `RefObj| `RefSort| `RefRel| `ObjectName| `Hits| `Count]
 
 (* TABLES *)
 
@@ -33,10 +57,10 @@ sprintf "CREATE TABLE %s (
     value varchar(255) binary not null
 );" name]
 
-let sprintf_owners_format name = [
+let sprintf_hits_format name = [
 sprintf "CREATE TABLE %s (
     source varchar(255) binary not null,
-    owner varchar(255) binary not null
+    no integer not null
 );" name]
 
 let sprintf_count_format name = [
@@ -55,7 +79,7 @@ let sprintf_refRel_drop name = [sprintf "DROP TABLE %s;" name]
 
 let sprintf_objectName_drop name = [sprintf "DROP TABLE %s;" name]
 
-let sprintf_owners_drop name = [sprintf "DROP TABLE %s;" name]
+let sprintf_hits_drop name = [sprintf "DROP TABLE %s;" name]
 
 let sprintf_count_drop name = [sprintf "DROP TABLE %s;" name]
 
@@ -72,9 +96,9 @@ sprintf "CREATE INDEX %s_source ON %s (source);" name name]
 let sprintf_objectName_index name = [
 sprintf "CREATE INDEX %s_value ON %s (value);" name name]
 
-let sprintf_owners_index name = [
-sprintf "CREATE INDEX %s_owner ON %s (owner);" name name ;
-sprintf "CREATE INDEX %s_source ON %s (source);" name name] 
+let sprintf_hits_index name = [
+sprintf "CREATE INDEX %s_source ON %s (source);" name name ;
+sprintf "CREATE INDEX %s_no ON %s (no);" name name] 
 
 let sprintf_count_index name = [
 sprintf "CREATE INDEX %s_source ON %s (source);" name name;
@@ -97,9 +121,9 @@ sprintf "DROP INDEX %s_source ON %s;" name name ]
 let sprintf_objectName_index_drop name = [
 sprintf "DROP INDEX %s_value ON %s;" name name]
 
-let sprintf_owners_index_drop name = [
-sprintf "DROP INDEX %s_owner ON %s;" name name ;
-sprintf "DROP INDEX %s_source ON %s;" name name] 
+let sprintf_hits_index_drop name = [
+sprintf "DROP INDEX %s_source ON %s;" name name ;
+sprintf "DROP INDEX %s_no ON %s;" name name] 
 
 let sprintf_count_index_drop name = [
 sprintf "DROP INDEX %s_source ON %s;" name name;
@@ -123,7 +147,7 @@ let get_table_format t named =
   | `RefSort -> sprintf_refSort_format named
   | `RefRel -> sprintf_refRel_format named
   | `ObjectName -> sprintf_objectName_format named
-  | `Owners -> sprintf_owners_format named
+  | `Hits -> sprintf_hits_format named
   | `Count -> sprintf_count_format named
 
 let get_index_format t named =
@@ -132,7 +156,7 @@ let get_index_format t named =
   | `RefSort -> sprintf_refSort_index named
   | `RefRel -> sprintf_refRel_index named
   | `ObjectName -> sprintf_objectName_index named
-  | `Owners -> sprintf_owners_index named
+  | `Hits -> sprintf_hits_index named
   | `Count -> sprintf_count_index named
 
 let get_table_drop t named =
@@ -141,7 +165,7 @@ let get_table_drop t named =
   | `RefSort -> sprintf_refSort_drop named
   | `RefRel -> sprintf_refRel_drop named
   | `ObjectName -> sprintf_objectName_drop named
-  | `Owners -> sprintf_owners_drop named
+  | `Hits -> sprintf_hits_drop named
   | `Count -> sprintf_count_drop named
 
 let get_index_drop t named =
@@ -150,7 +174,7 @@ let get_index_drop t named =
   | `RefSort -> sprintf_refSort_index_drop named
   | `RefRel -> sprintf_refRel_index_drop named
   | `ObjectName -> sprintf_objectName_index_drop named
-  | `Owners -> sprintf_owners_index_drop named
+  | `Hits -> sprintf_hits_index_drop named
   | `Count -> sprintf_count_index_drop named
 
 let create_tables l =
@@ -168,3 +192,12 @@ let drop_indexes l =
 let rename_tables l = 
   List.fold_left (fun s (o,n) ->  s @ sprintf_rename_table o n) [] l
 
+let fill_hits refObj hits =
+  [ sprintf
+        "INSERT INTO %s
+        SELECT h_occurrence, COUNT(source)
+        FROM %s
+        GROUP BY h_occurrence;"
+      hits refObj ]
+
+