[facturation/b2] Fix b2 type1 dest org, change how b2 files are created (fixes #5802).

* The b2 type 1 destination organism is the real destination, not the
      policyholder health center destination organism.

    * b2() does not assert when the b2 file exists and has the regenerate switch
      to indicate if the file must be kept or regenerated. The swith can be set
      for the buildall() method. Then caling buildall will now recreate missing
      files by default.

calebasse/facturation/b2.py

@@ -181,7 +181,7 @@ def write_invoice(output_file, invoice):
 
     return invoice_lines
 
-def b2(seq_id, hc, batches):
+def b2(seq_id, hc, batches, regenerate=False):
     to = hc.b2_000()
     total = sum(b.total for b in batches)
     first_batch = min(b.number for b in batches)
@@ -204,7 +204,8 @@ def b2(seq_id, hc, batches):
     prefix = '%s-%s-%s-%s-%s.' % (seq_id, NUMERO_EMETTEUR, to, first_batch, file_id)
 
     b2_filename = os.path.join(output_dir, prefix + 'b2')
-    assert not os.path.isfile(b2_filename), 'B2 file "%s" already exists' % b2_filename
+    if os.path.isfile(b2_filename) and not regenerate:
+        return None
 
     output_file = tempfile.NamedTemporaryFile(suffix='.b2tmp',
             prefix=prefix, dir=output_dir, delete=False)
@@ -222,7 +223,7 @@ def b2(seq_id, hc, batches):
 
     for batch in batches:
         start_1 = '1' + NUMERO_EMETTEUR + filler(6) + \
-                batch.health_center.dest_organism[0:3] + \
+                hc.dest_organism[0:3] + \
                 ('%0.3d' % batch.number) + CATEGORIE + STATUT + MODE_TARIF + \
                 NOM + 'B2' + b2date(utcnow) + ' ' + NORME[0:2] + \
                 ' ' + '062007' + 'U' + filler(2+3+1+34)
@@ -231,6 +232,7 @@ def b2(seq_id, hc, batches):
 
         infos['batches'].append({
             'batch': batch.number,
+            'dest': '%s' % hc.dest_organism[0:3],
             'hc': u'%s' % batch.health_center,
             'total': float(batch.total),
             'number_of_invoices': batch.number_of_invoices,
@@ -289,15 +291,18 @@ def b2(seq_id, hc, batches):
 
     return b2_filename
 
-def buildall(seq_id):
+def buildall(seq_id, regenerate=False):
     try:
         invoicing = Invoicing.objects.filter(seq_id=seq_id)[0]
     except IndexError:
-        raise RuntimeError('Facture introuvable')
+        raise RuntimeError('Facturation introuvable')
     batches = build_batches(invoicing)
     for hc in batches:
         for b in batches[hc]:
-            b2_filename = b2(invoicing.seq_id, hc, [b])
+            b2_filename = b2(invoicing.seq_id, hc, [b],
+                    regenerate=regenerate)
+            if b2_filename:
+                print "%s created" % b2_filename
 
 
 def sendmail_raw(mail):