Fixed #5610 -- Added the ability for dumpdata to take individual model names, as well as entire applications. Thanks to David Reynolds for his work on this patch.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@9921 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/core/management/commands/dumpdata.py

@@ -1,3 +1,4 @@
+from django.core.exceptions import ImproperlyConfigured
 from django.core.management.base import BaseCommand, CommandError
 from django.core import serializers
 
@@ -9,14 +10,14 @@ class Command(BaseCommand):
             help='Specifies the output serialization format for fixtures.'),
         make_option('--indent', default=None, dest='indent', type='int',
             help='Specifies the indent level to use when pretty-printing output'),
-        make_option('-e', '--exclude', dest='exclude',action='append', default=[], 
+        make_option('-e', '--exclude', dest='exclude',action='append', default=[],
             help='App to exclude (use multiple --exclude to exclude multiple apps).'),
     )
     help = 'Output the contents of the database as a fixture of the given format.'
     args = '[appname ...]'
 
     def handle(self, *app_labels, **options):
-        from django.db.models import get_app, get_apps, get_models
+        from django.db.models import get_app, get_apps, get_models, get_model
 
         format = options.get('format','json')
         indent = options.get('indent',None)
@@ -26,9 +27,34 @@ class Command(BaseCommand):
         excluded_apps = [get_app(app_label) for app_label in exclude]
 
         if len(app_labels) == 0:
-            app_list = [app for app in get_apps() if app not in excluded_apps]
+            app_list = dict([(app, None) for app in get_apps() if app not in excluded_apps])
         else:
-            app_list = [get_app(app_label) for app_label in app_labels]
+            app_list = {}
+            for label in app_labels:
+                try:
+                    app_label, model_label = label.split('.')
+                    try:
+                        app = get_app(app_label)
+                    except ImproperlyConfigured:
+                        raise CommandError("Unknown application: %s" % app_label)
+
+                    model = get_model(app_label, model_label)
+                    if model is None:
+                        raise CommandError("Unknown model: %s.%s" % (app_label, model_label))
+
+                    if app in app_list.keys():
+                        if app_list[app] and model not in app_list[app]:
+                            app_list[app].append(model)
+                    else:
+                        app_list[app] = [model]
+                except ValueError:
+                    # This is just an app - no model qualifier
+                    app_label = label
+                    try:
+                        app = get_app(app_label)
+                    except ImproperlyConfigured:
+                        raise CommandError("Unknown application: %s" % app_label)
+                    app_list[app] = None
 
         # Check that the serialization format exists; this is a shortcut to
         # avoid collating all the objects and _then_ failing.
@@ -41,9 +67,13 @@ class Command(BaseCommand):
             raise CommandError("Unknown serialization format: %s" % format)
 
         objects = []
-        for app in app_list:
-            for model in get_models(app):
-                objects.extend(model._default_manager.all())
+        for app, model_list in app_list.items():
+            if model_list is None:
+                model_list = get_models(app)
+
+            for model in model_list:
+                objects.extend(model.objects.all())
+
         try:
             return serializers.serialize(format, objects, indent=indent)
         except Exception, e: