diff options
Diffstat (limited to 'common/src/leap/soledad/common/couch.py')
| -rw-r--r-- | common/src/leap/soledad/common/couch.py | 98 |
1 files changed, 16 insertions, 82 deletions
diff --git a/common/src/leap/soledad/common/couch.py b/common/src/leap/soledad/common/couch.py index c003b14e..126c6b51 100644 --- a/common/src/leap/soledad/common/couch.py +++ b/common/src/leap/soledad/common/couch.py @@ -102,23 +102,8 @@ class CouchDocument(SoledadDocument): """ SoledadDocument.__init__(self, doc_id, rev, json, has_conflicts) self.couch_rev = None - self._conflicts = None self.transactions = None - def _ensure_fetch_conflicts(self, get_conflicts_fun): - """ - Ensure conflict data has been fetched from the server. - - :param get_conflicts_fun: A function which, given the document id and - the couch revision, return the conflicted - versions of the current document. - :type get_conflicts_fun: function - """ - if self._conflicts is None: - self._conflicts = get_conflicts_fun(self.doc_id, - couch_rev=self.couch_rev) - self.has_conflicts = len(self._conflicts) > 0 - def get_conflicts(self): """ Get the conflicted versions of the document. @@ -146,7 +131,7 @@ class CouchDocument(SoledadDocument): :type doc: CouchDocument """ if self._conflicts is None: - raise Exception("Run self._ensure_fetch_conflicts first!") + raise Exception("Fetch conflicts first!") self._conflicts.append(doc) self.has_conflicts = len(self._conflicts) > 0 @@ -158,7 +143,7 @@ class CouchDocument(SoledadDocument): :type conflict_revs: [str] """ if self._conflicts is None: - raise Exception("Run self._ensure_fetch_conflicts first!") + raise Exception("Fetch conflicts first!") self._conflicts = filter( lambda doc: doc.rev not in conflict_revs, self._conflicts) @@ -731,7 +716,6 @@ class CouchDatabase(CommonBackend): if check_for_conflicts \ and '_attachments' in result \ and 'u1db_conflicts' in result['_attachments']: - doc.has_conflicts = True doc.set_conflicts( self._build_conflicts( doc.doc_id, @@ -1025,7 +1009,7 @@ class CouchDatabase(CommonBackend): conflicts.append(doc) return conflicts - def _get_conflicts(self, doc_id, couch_rev=None): + def get_doc_conflicts(self, doc_id, couch_rev=None): """ Get the conflicted versions of a document. @@ -1040,32 +1024,21 @@ class CouchDatabase(CommonBackend): """ # request conflicts attachment from server params = {} + conflicts = [] if couch_rev is not None: params['rev'] = couch_rev # restric document's couch revision + else: + # TODO: move into resource logic! + first_entry = self._get_doc(doc_id, check_for_conflicts=True) + conflicts.append(first_entry) resource = self._database.resource(doc_id, 'u1db_conflicts') try: response = resource.get_json(**params) - return self._build_conflicts( + return conflicts + self._build_conflicts( doc_id, json.loads(response[2].read())) except ResourceNotFound: return [] - def get_doc_conflicts(self, doc_id): - """ - Get the list of conflicts for the given document. - - The order of the conflicts is such that the first entry is the value - that would be returned by "get_doc". - - :return: A list of the document entries that are conflicted. - :rtype: [CouchDocument] - """ - conflict_docs = self._get_conflicts(doc_id) - if len(conflict_docs) == 0: - return [] - this_doc = self._get_doc(doc_id, check_for_conflicts=True) - return [this_doc] + conflict_docs - def _get_replica_gen_and_trans_id(self, other_replica_uid): """ Return the last known generation and transaction id for the other db @@ -1189,43 +1162,6 @@ class CouchDatabase(CommonBackend): except ResourceNotFound as e: raise_missing_design_doc_error(e, ddoc_path) - def _add_conflict(self, doc, my_doc_rev, my_content): - """ - Add a conflict to the document. - - Note that this method does not actually update the backend; rather, it - updates the CouchDocument object which will provide the conflict data - when the atomic document update is made. - - :param doc: The document to have conflicts added to. - :type doc: CouchDocument - :param my_doc_rev: The revision of the conflicted document. - :type my_doc_rev: str - :param my_content: The content of the conflicted document as a JSON - serialized string. - :type my_content: str - """ - doc._ensure_fetch_conflicts(self._get_conflicts) - doc.add_conflict( - self._factory(doc_id=doc.doc_id, rev=my_doc_rev, - json=my_content)) - - def _delete_conflicts(self, doc, conflict_revs): - """ - Delete the conflicted revisions from the list of conflicts of C{doc}. - - Note that this method does not actually update the backend; rather, it - updates the CouchDocument object which will provide the conflict data - when the atomic document update is made. - - :param doc: The document to have conflicts deleted. - :type doc: CouchDocument - :param conflict_revs: A list of the revisions to be deleted. - :param conflict_revs: [str] - """ - doc._ensure_fetch_conflicts(self._get_conflicts) - doc.delete_conflicts(conflict_revs) - def _prune_conflicts(self, doc, doc_vcr): """ Prune conflicts that are older then the current document's revision, or @@ -1251,7 +1187,7 @@ class CouchDatabase(CommonBackend): if autoresolved: doc_vcr.increment(self._replica_uid) doc.rev = doc_vcr.as_str() - self._delete_conflicts(doc, c_revs_to_prune) + doc.delete_conflicts(c_revs_to_prune) def _force_doc_sync_conflict(self, doc): """ @@ -1262,8 +1198,7 @@ class CouchDatabase(CommonBackend): """ my_doc = self._get_doc(doc.doc_id, check_for_conflicts=True) self._prune_conflicts(doc, vectorclock.VectorClockRev(doc.rev)) - self._add_conflict(doc, my_doc.rev, my_doc.get_json()) - doc.has_conflicts = True + doc.add_conflict(my_doc) self._put_doc(my_doc, doc) def resolve_doc(self, doc, conflicted_doc_revs): @@ -1308,14 +1243,14 @@ class CouchDatabase(CommonBackend): # the newer doc version will supersede the one in the database, so # we copy conflicts before updating the backend. doc.set_conflicts(cur_doc.get_conflicts()) # copy conflicts over. - self._delete_conflicts(doc, superseded_revs) + doc.delete_conflicts(superseded_revs) self._put_doc(cur_doc, doc) else: # the newer doc version does not supersede the one in the # database, so we will add a conflict to the database and copy # those over to the document the user has in her hands. - self._add_conflict(cur_doc, new_rev, doc.get_json()) - self._delete_conflicts(cur_doc, superseded_revs) + cur_doc.add_conflict(doc) + cur_doc.delete_conflicts(superseded_revs) self._put_doc(cur_doc, cur_doc) # just update conflicts # backend has been updated with current conflicts, now copy them # to the current document. @@ -1405,10 +1340,9 @@ class CouchDatabase(CommonBackend): if cur_doc is None: self._put_doc(cur_doc, doc) return 'inserted' - else: - doc.couch_rev = cur_doc.couch_rev + doc.couch_rev = cur_doc.couch_rev + doc.set_conflicts(self.get_doc_conflicts(doc.doc_id, doc.couch_rev)) # fetch conflicts because we will eventually manipulate them - doc._ensure_fetch_conflicts(self._get_conflicts) # from now on, it works just like u1db sqlite backend doc_vcr = vectorclock.VectorClockRev(doc.rev) cur_vcr = vectorclock.VectorClockRev(cur_doc.rev) |