def __init__(self, commit_obj=None, ctx=None, meta=None):
"""
@param commit_obj: serializable blob
@return: old_head, new_head, new_head.hash_value
"""
super(DBO_block_chain__commit, self).__init__()
blob = RZCommit.blob_from_diff_obj(commit_obj)
hash_value = self.calc_blob_hash(blob)
l_id = generate_random_id__uuid()
q_arr = [
'match (old_head:%s:%s)' % (neo4j_schema.META_LABEL__VC_HEAD,
neo4j_schema.META_LABEL__VC_COMMIT),
'create (new_head:%s:%s {commit_attr})' %
(neo4j_schema.META_LABEL__VC_HEAD,
neo4j_schema.META_LABEL__VC_COMMIT),
'create (new_head)-[r:%s {link_attr}]->(old_head)' %
(neo4j_schema.META_LABEL__VC_PARENT),
'remove old_head:%s' % (neo4j_schema.META_LABEL__VC_HEAD),
'set new_head.ts_created=timestamp()',
'return {head_parent_commit: old_head, head_commit: new_head, ts_created: new_head.ts_created}'
]
q_param_set = {
'commit_attr': {
'blob': blob,
'hash': hash_value,
'id': hash_value
},
'link_attr': {
'id': l_id
},
}
self.add_statement(q_arr, q_param_set)
# cache values necessary to generate op result
self.commit_obj = commit_obj
self.n_id = hash_value
self.l_id = l_id
# create commit-[:__Authored-by]->__User link if possible
if None != ctx and None != ctx.user_name:
self.add_statement(self._add_statement__authored_by(ctx.user_name))
if None != meta and 'sentence' in meta and meta['sentence'] != '':
result_of_param_set = {
'result_of_attr': {
'sentence': meta['sentence']
}
}
self.add_statement(
self._add_statement__result_of_sentence(ctx.user_name),
result_of_param_set)
def generate_random_node_dict(n_type, nid=None):
"""
@param n_type: is converted to a label set
@return: a dict based node object representation and the generated node id
"""
if None == nid:
nid = generate_random_id__uuid()
return {'__label_set': [n_type], 'id': nid, 'name': gen_random_name()}, nid
def generate_random_node_dict(n_type, nid=None):
"""
@param n_type: is converted to a label set
@return: a dict based node object representation and the generated node id
"""
if None == nid:
nid = generate_random_id__uuid()
return {'__label_set': [n_type],
'id': nid,
'name': gen_random_name() }, nid
def generate_random_link_dict(l_type, src_id, dst_id, lid=None):
"""
@param l_type: is converted to a single item type array
@return: a dict based node object representation and the generated node id
"""
if None == lid:
lid = generate_random_id__uuid()
ret_dict = Link.link_ptr(src_id, dst_id)
ret_dict['__type'] = [l_type]
ret_dict['id'] = lid
return ret_dict, lid
def generate_random_link_dict(l_type, src_id, dst_id, lid=None):
"""
@param l_type: is converted to a single item type array
@return: a dict based node object representation and the generated node id
"""
if None == lid:
lid = generate_random_id__uuid()
ret_dict = Link.link_ptr(src_id, dst_id)
ret_dict['__type'] = [l_type]
ret_dict['id'] = lid
return ret_dict, lid
def __init__(self, commit_obj=None, ctx=None, meta=None):
"""
@param commit_obj: serializable blob
@return: old_head, new_head, new_head.hash_value
"""
super(DBO_block_chain__commit, self).__init__()
blob = RZCommit.blob_from_diff_obj(commit_obj)
hash_value = self.calc_blob_hash(blob)
l_id = generate_random_id__uuid()
q_arr = ['match (old_head:%s:%s)' % (neo4j_schema.META_LABEL__VC_HEAD,
neo4j_schema.META_LABEL__VC_COMMIT),
'create (new_head:%s:%s {commit_attr})' % (neo4j_schema.META_LABEL__VC_HEAD,
neo4j_schema.META_LABEL__VC_COMMIT),
'create (new_head)-[r:%s {link_attr}]->(old_head)' % (neo4j_schema.META_LABEL__VC_PARENT),
'remove old_head:%s' % (neo4j_schema.META_LABEL__VC_HEAD),
'set new_head.ts_created=timestamp()',
'return {head_parent_commit: old_head, head_commit: new_head, ts_created: new_head.ts_created}'
]
q_param_set = {'commit_attr': {'blob': blob,
'hash': hash_value,
'id': hash_value},
'link_attr': {'id': l_id},
}
self.add_statement(q_arr, q_param_set)
# cache values necessary to generate op result
self.commit_obj = commit_obj
self.n_id = hash_value
self.l_id = l_id
# create commit-[:__Authored-by]->__User link if possible
if None != ctx and None != ctx.user_name:
self.add_statement(self._add_statement__authored_by(ctx.user_name))
if None != meta and 'sentence' in meta and meta['sentence'] != '':
result_of_param_set = {'result_of_attr': {'sentence': meta['sentence']}}
self.add_statement(self._add_statement__result_of_sentence(ctx.user_name),
result_of_param_set)
