[IMP] unaccent: added an unaccent command-line flag, and a function to test unaccent availability.

bzr revid: vmt@openerp.com-20110722081030-ltxuqknpe1arduw5

openerp/modules/db.py

@@ -118,4 +118,14 @@ def create_categories(cr, categories):
         categories = categories[1:]
     return p_id
 
+def has_unaccent(cr):
+    """ Test if the database has an unaccent function.
+
+    The unaccent is supposed to be provided by the PostgreSQL unaccent contrib
+    module but any similar function will be picked by OpenERP.
+
+    """
+    cr.execute("SELECT proname FROM pg_proc WHERE proname='unaccent'")
+    return len(cr.fetchall()) > 0
+
 # vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:

openerp/modules/registry.py

@@ -25,6 +25,7 @@
 
 import openerp.sql_db
 import openerp.osv.orm
+import openerp.modules.db
 
 
 class Registry(object):
@@ -44,6 +45,10 @@ class Registry(object):
         self.db_name = db_name
         self.db = openerp.sql_db.db_connect(db_name)
 
+        cr = self.db.cursor()
+        self.has_unaccent = openerp.modules.db.has_unaccent(cr)
+        cr.close()
+
     def do_parent_store(self, cr):
         for o in self._init_parent:
             self.get(o)._parent_store_compute(cr)

openerp/tools/config.py

@@ -250,6 +250,8 @@ class configmanager(object):
                               "osv_memory tables. This is a decimal value expressed in hours, "
                               "and the default is 1 hour.",
                          type="float")
+        group.add_option("--unaccent", dest="unaccent", my_default=False,
+                         help="Use the unaccent function provided by the database when available.")
         parser.add_option_group(group)
 
         # Copy all optparse options (i.e. MyOption) into self.options.