Index: openacs-4/packages/acs-kernel/sql/postgresql/upgrade/upgrade-4.2-4.5.sql
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-kernel/sql/postgresql/upgrade/upgrade-4.2-4.5.sql,v
diff -u -N
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ openacs-4/packages/acs-kernel/sql/postgresql/upgrade/upgrade-4.2-4.5.sql	17 Aug 2002 17:42:45 -0000	1.2
@@ -0,0 +1,56 @@
+-- packages/acs-kernel/sql/upgrade/upgrade-4.2-4.5.sql
+--
+-- @author vinod@kurup.com
+-- @creation-date 2002-05-15
+-- @cvs-id $Id: upgrade-4.2-4.5.sql,v 1.2 2002/08/17 17:42:45 vinodk Exp $
+--
+
+-- fixes bug #1515 http://openacs.org/sdm/one-bug.tcl?baf_id=1515
+
+drop function apm_package_version__upgrade_p (varchar,varchar,varchar);
+create function apm_package_version__upgrade_p (varchar,varchar,varchar)
+returns integer as '
+declare
+  upgrade_p__path                   alias for $1;  
+  upgrade_p__initial_version_name   alias for $2;  
+  upgrade_p__final_version_name     alias for $3;  
+  v_pos1                            integer;       
+  v_pos2                            integer;       
+  v_tmp                             apm_package_files.path%TYPE;
+  v_path                            apm_package_files.path%TYPE;
+  v_version_from                    apm_package_versions.version_name%TYPE;
+  v_version_to                      apm_package_versions.version_name%TYPE;
+begin
+
+	-- Set v_path to the tail of the path (the file name).        
+	v_path := substr(upgrade_p__path, instr(upgrade_p__path, ''/'', -1) + 1);
+
+	-- Remove the extension, if it is .sql.
+	v_pos1 := position(''.sql'' in v_path);
+	if v_pos1 > 0 then
+	    v_path := substr(v_path, 1, v_pos1 - 1);
+	end if;
+
+	-- Figure out the from/to version numbers for the individual file.
+	v_pos1 := instr(v_path, ''-'', -1, 2);
+	v_pos2 := instr(v_path, ''-'', -1);
+	if v_pos1 = 0 or v_pos2 = 0 then
+	    -- There aren''t two hyphens in the file name. Bail.
+	    return 0;
+	end if;
+
+	v_version_from := substr(v_path, v_pos1 + 1, v_pos2 - v_pos1 - 1);
+	v_version_to := substr(v_path, v_pos2 + 1);
+
+	if apm_package_version__version_name_greater(upgrade_p__initial_version_name, v_version_from) <= 0 and
+	   apm_package_version__version_name_greater(upgrade_p__final_version_name, v_version_to) >= 0 then
+	    return 1;
+	end if;
+
+	return 0;
+        -- exception when others then
+	-- Invalid version number.
+	-- return 0;
+   
+end;' language 'plpgsql';
+