from datetime import datetime
from django.db import models
+from django.db.models.base import ModelBase
from django.contrib.auth.models import User
from django.utils.translation import ugettext_lazy as _
from mercurial import mdiff, simplemerge
_object_cache = {}
class Meta:
+ abstract = True
ordering = ['ordering']
def __unicode__(self):
def listener_changed(sender, instance, **kwargs):
sender._object_cache = {}
+ def next(self):
+ """
+ Returns the next tag - stage to work on.
+ Returns None for the last stage.
+ """
+ try:
+ return Tag.objects.filter(ordering__gt=self.ordering)[0]
+ except IndexError:
+ return None
+
models.signals.pre_save.connect(Tag.listener_changed, sender=Tag)
Data contains a pickled diff needed to reproduce the initial document.
"""
author = models.ForeignKey(User, null=True, blank=True)
- author_desc = models.CharField(max_length=128, null=True, blank=True)
+ author_name = models.CharField(max_length=128, null=True, blank=True)
+ author_email = models.CharField(max_length=128, null=True, blank=True)
patch = models.TextField(blank=True)
- tree = models.ForeignKey('Document')
revision = models.IntegerField(db_index=True)
parent = models.ForeignKey('self',
default=datetime.now)
publishable = models.BooleanField(default=False)
- tags = models.ManyToManyField(Tag)
-
class Meta:
+ abstract = True
ordering = ('created_at',)
unique_together = ['tree', 'revision']
self.author.last_name,
self.author.email)
else:
- return self.author_desc
+ return "%s <%s>" % (
+ self.author_name,
+ self.author_email
+ )
def save(self, *args, **kwargs):
if self.parent is None and self.merge_parent is not None:
return self.apply_to(self.merge_parent.materialize())
- changes = Change.objects.exclude(parent=None).filter(
- tree=self.tree,
+ changes = self.tree.change_set.exclude(parent=None).filter(
revision__lte=self.revision).order_by('revision')
- text = u''
+ text = ''
for change in changes:
text = change.apply_to(text)
- return text
+ return text.decode('utf-8')
def make_child(self, patch, description, author=None,
- author_desc=None, tags=None):
+ author_name=None, author_email=None, tags=None):
ch = self.children.create(patch=patch,
tree=self.tree, author=author,
- author_desc=author_desc,
+ author_name=author_name,
+ author_email=author_email,
description=description)
if tags is not None:
ch.tags = tags
return ch
def make_merge_child(self, patch, description, author=None,
- author_desc=None, tags=None):
+ author_name=None, author_email=None, tags=None):
ch = self.merge_children.create(patch=patch,
tree=self.tree, author=author,
- author_desc=author_desc,
+ author_name=author_name,
+ author_email=author_email,
description=description,
tags=tags)
if tags is not None:
def apply_to(self, text):
return mdiff.patch(text, pickle.loads(self.patch.encode('ascii')))
- def merge_with(self, other, author=None, author_desc=None,
+ def merge_with(self, other, author=None,
+ author_name=None, author_email=None,
description=u"Automatic merge."):
assert self.tree_id == other.tree_id # same tree
if other.parent_id == self.pk:
patch = self.make_patch(local, result)
return self.children.create(
patch=patch, merge_parent=other, tree=self.tree,
- author=author, author_desc=author_desc,
+ author=author,
+ author_name=author_name,
+ author_email=author_email,
description=description)
def revert(self, **kwargs):
self.tree.commit(text=self.materialize(), **kwargs)
+def create_tag_model(model):
+ name = model.__name__ + 'Tag'
+ attrs = {
+ '__module__': model.__module__,
+ }
+ return type(name, (Tag,), attrs)
+
+
+def create_change_model(model):
+ name = model.__name__ + 'Change'
+
+ attrs = {
+ '__module__': model.__module__,
+ 'tree': models.ForeignKey(model, related_name='change_set'),
+ 'tags': models.ManyToManyField(model.tag_model, related_name='change_set'),
+ }
+ return type(name, (Change,), attrs)
+
+
+
+class DocumentMeta(ModelBase):
+ "Metaclass for Document models."
+ def __new__(cls, name, bases, attrs):
+ model = super(DocumentMeta, cls).__new__(cls, name, bases, attrs)
+ if not model._meta.abstract:
+ # create a real Tag object and `stage' fk
+ model.tag_model = create_tag_model(model)
+ models.ForeignKey(model.tag_model,
+ null=True, blank=True).contribute_to_class(model, 'stage')
+
+ # create real Change model and `head' fk
+ model.change_model = create_change_model(model)
+ models.ForeignKey(model.change_model,
+ null=True, blank=True, default=None,
+ help_text=_("This document's current head."),
+ editable=False).contribute_to_class(model, 'head')
+
+ return model
+
+
+
class Document(models.Model):
"""
File in repository.
"""
- creator = models.ForeignKey(User, null=True, blank=True, editable=False)
- head = models.ForeignKey(Change,
- null=True, blank=True, default=None,
- help_text=_("This document's current head."),
- editable=False)
+ __metaclass__ = DocumentMeta
+
+ creator = models.ForeignKey(User, null=True, blank=True, editable=False,
+ related_name="created_documents")
+
+ user = models.ForeignKey(User, null=True, blank=True)
+
+ class Meta:
+ abstract = True
def __unicode__(self):
return u"{0}, HEAD: {1}".format(self.id, self.head_id)
else:
parent = kwargs['parent']
if not isinstance(parent, Change):
- parent = Change.objects.get(pk=kwargs['parent'])
+ parent = self.change_set.objects.get(pk=kwargs['parent'])
if 'patch' not in kwargs:
if 'text' not in kwargs:
patch = kwargs['patch']
author = kwargs.get('author', None)
- author_desc = kwargs.get('author_desc', None)
+ author_name = kwargs.get('author_name', None)
+ author_email = kwargs.get('author_email', None)
tags = kwargs.get('tags', [])
+ if tags:
+ # set stage to next tag after the commited one
+ self.stage = max(tags, key=lambda t: t.ordering).next()
old_head = self.head
if parent != old_head:
change = parent.make_merge_child(patch, author=author,
- author_desc=author_desc,
+ author_name=author_name,
+ author_email=author_email,
description=kwargs.get('description', ''),
tags=tags)
# not Fast-Forward - perform a merge
self.head = old_head.merge_with(change, author=author,
- author_desc=author_desc)
+ author_name=author_name,
+ author_email=author_email)
else:
self.head = parent.make_child(patch, author=author,
- author_desc=author_desc,
+ author_name=author_name,
+ author_email=author_email,
description=kwargs.get('description', ''),
tags=tags)
if not isinstance(instance, Document):
return
if created:
- instance.head = Change.objects.create(
+ instance.head = instance.change_model.objects.create(
revision=-1,
author=instance.creator,
patch=Change.make_patch('', ''),
fnp / redakcja.git / blobdiff