Add generic table for links between elements

mysql/migration/2.2.0-2.4.0.sql

@@ -154,3 +154,19 @@ create table llx_pr_liv
 )type=innodb;
 
 ALTER TABLE llx_paiement modify fk_bank integer NOT NULL DEFAULT 0;
+
+
+create table llx_element_element
+(
+  rowid           	integer AUTO_INCREMENT PRIMARY KEY,  
+  sourceid			integer NOT NULL,
+  sourcetype		varchar(12) NOT NULL,
+  targetid			integer NOT NULL,
+  targettype		varchar(12) NOT NULL
+) type=innodb;
+
+
+ALTER TABLE llx_element_element 
+	ADD UNIQUE INDEX idx_element_element_idx1 (sourceid, sourcetype, targetid, targettype);
+
+ALTER TABLE llx_element_element ADD INDEX idx_element_element_targetid (targetid);

mysql/tables/llx_element_element.key.sql

@@ -0,0 +1,29 @@
+-- ============================================================================
+-- Copyright (C) 2008 Laurent Destailleur <eldy@users.sourceforge.net>
+--
+-- This program 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.
+--
+-- This program 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 this program; if not, write to the Free Software
+-- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+--
+-- $Id$
+-- ============================================================================
+
+
+ALTER TABLE llx_element_element 
+	ADD UNIQUE INDEX idx_element_element_idx1 (sourceid, sourcetype, targetid, targettype);
+
+	
+ALTER TABLE llx_element_element ADD INDEX idx_element_element_targetid (targetid);
+
+-- Pas de contraite sur sourceid et targetid car pointe sur differentes tables
+	

mysql/tables/llx_element_element.sql

@@ -0,0 +1,32 @@
+-- ============================================================================
+-- Copyright (C) 2008 Laurent Destailleur  <eldy@users.sourceforge.net>
+--
+-- This program 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.
+--
+-- This program 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 this program; if not, write to the Free Software
+-- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+--
+-- $Id$
+-- ============================================================================
+-- Table used for relations between elements of different types:
+-- invoice-propal, propal-order, etc...
+-- ============================================================================
+
+create table llx_element_element
+(
+  rowid           	integer AUTO_INCREMENT PRIMARY KEY,  
+  sourceid			integer NOT NULL,
+  sourcetype		varchar(12) NOT NULL,
+  targetid			integer NOT NULL,
+  targettype		varchar(12) NOT NULL
+) type=innodb;
+