#
##############################################################################
-import msgpack
from cursor import Cursor
-import uuid
+from objectid import ObjectId
class Collection(object):
def __init__(self, database, table_name):
def exists(self):
return (self.database.exists() and self.table_name in self.database.collection_names())
- def _create_table(self):
- fields = [
- {'name': 'id', 'type': 'char', 'size': 512, 'primary': True},
- ]
- return self.database.connection._create_table(self.database.db_name, '%s$_id' % self.table_name, fields)
-
def _create_field(self, field_name):
fields = [
{'name': 'id', 'type': 'char', 'size': 512, 'primary': True},
+ {'name': 'name', 'type': 'char', 'size': 64, 'primary': True},
{'name': 'value', 'type': 'text', 'null': False},
{'name': 'number', 'type': 'float'},
]
if not self.database.db_name in self.database.connection.database_names():
self.database._create_database()
if not self.table_name in self.database.collection_names():
- self._create_table()
+ self._create_field('_id')
if not type(doc_or_docs) in (list, tuple):
docs = [doc_or_docs]
else:
docs = doc_or_docs
for doc in docs:
+ doc_id = str(ObjectId())
if not '_id' in doc:
- doc['_id'] = uuid.uuid4().hex
- self._insert_document(doc)
+ doc['_id'] = doc_id
+ self._insert_document(doc_id, doc)
if type(doc_or_docs) in (list, tuple):
return [d['_id'] for d in docs]
else:
return docs[0]['_id']
- def _insert_document(self, doc):
- table_id = '%s$_id' % self.table_name
+ def _insert_document(self, doc_id, doc):
fields = self._get_fields()
- coded_id = msgpack.dumps(doc['_id'])
- self.database.connection._insert(self.database.db_name, table_id, {'id': coded_id})
- for f in doc:
- if f == '_id':
- continue
- if not f in fields:
- self._create_field(f)
- table_f = '%s$%s' % (self.table_name, f)
- values = {
- 'id': coded_id,
- 'value': msgpack.dumps(doc[f]),
- }
- if type(doc[f]) in (int, float):
- values['number'] = doc[f]
- self.database.connection._insert(self.database.db_name, table_f, values)
+ self.database.connection.savepoint("insert_document")
+ try:
+ for f in doc:
+ if not f in fields:
+ self._create_field(f)
+ table_f = '%s$%s' % (self.table_name, f)
+ self._insert_field(doc_id, table_f, f, doc[f])
+ self.database.connection.commit_savepoint("insert_document")
+ except:
+ self.database.connection.rollback_savepoint("insert_document")
+ raise
+
+ def _insert_field(self, doc_id, field_table, field_name, field_value):
+ values = {
+ 'id': doc_id,
+ 'name': field_name,
+ 'value': self.database.connection.serializer.dumps(field_value),
+ }
+ if type(field_value) in (int, float):
+ values['number'] = field_value
+
+ self.database.connection._insert(self.database.db_name, field_table, values)
+
+ if type(field_value) in (list, tuple) and not '.' in field_name:
+ for i in xrange(len(field_value)):
+ self._insert_field(doc_id, field_table, "%s..%s" % (field_name, i), field_value[i])
+ elif type(field_value) is dict:
+ for k, v in field_value.iteritems():
+ self._insert_field(doc_id, field_table, "%s.%s" % (field_name, k), v)