Begynt på commit.

Det er foreløpig delvis støtte for å redigere bøker.

python/worblehat.py

@@ -6,10 +6,12 @@ os.environ['DJANGO_SETTINGS_MODULE']='web.settings'
 from web.library.models import *
 from web.library.fileformat import read_actionlist, write_actionlist
 from django.db.models import Q
+from django.db import transaction
 from util import *
 import getopt
 import sys
 import types
+import traceback
 import search
 import placement
 import tempfile
@@ -74,13 +76,66 @@ def search_person(search_strings, search_description=False):
 					       Q(books__book__id__id__icontains=word))
 	return remove_duplicates(basic_query.all())
 
-def commit(filename=None): # TODO
-    pass
+def commit(filename=None):
+    if filename:
+        try:
+            f = file(filename, 'r')
+            text = f.read()
+            f.close()
+        except IOError, e:
+            print 'commit: Error reading file %s: %s' % (filename, e)
+            print 'Exiting.'
+            sys.exit(1)
+    else:
+        text = sys.stdin.read()
+
+    actions = read_actionlist(text)
+    commit_actions(actions)
+
+@transaction.commit_manually
+def commit_actions(actions):
+    # Ensure that creation of new persons is performed first, so that
+    # books in the same commit can refer to them:
+    def action_cmp(a1, a2):
+        if a1['action'] == 'new-person' and a2['action'] != 'new-person':
+            return -1
+        return cmp(a1, a2)
+    actions.sort(action_cmp)
+
+    try:
+        for action in actions:
+            perform_action(action)
+        transaction.commit()
+    except Exception, e:
+        print 'Error when commiting.'
+        print e
+        traceback.print_exc()
+        transaction.rollback()
+
+def perform_action(a):
+    if a['action'] == 'edit-book':
+        b = Book.objects.get(isbn=a['isbn'])
+        if 'title' in a: b.title = a['title']
+        if 'subtitle' in a: b.subtitle = a['subtitle']
+        if 'category' in a: b.category = Category.objects.get(id=a['category'])
+        if 'publisher' in a: b.publisher = a['publisher']
+        if 'published_year' in a: b.published_year = a['published_year']
+        if 'edition' in a: b.edition = a['edition']
+        if 'num_pages' in a: b.num_pages = a['num_pages']
+        if 'series' in a:
+            series_lst = BookSeries.objects.filter(Q(id=a['series']))
+            if len(series_lst) > 0:
+                b.series = series_lst[0]
+            else:
+                b.series = None
+        if 'description' in a: b.description = a['description']
+        # TODO persons, references, pictures
+        b.save()
 
 def edit_book_or_person(ids):
     filename = show_book_or_person(ids, commit_format=True, tmp_file=True)
     print filename
-#    run_editor(filename) # TODO: må implementeres
+    run_editor(filename)
     commit(filename)
 
 commands = { 'show':