+ if update_dict:
+ for dot_k, v in update_dict.items():
+ dict_to_update, key_to_update, _ = _iterate_keys(dot_k, db_item)
+ dict_to_update[key_to_update] = v
+ updated = True
+ if unset:
+ for dot_k in unset:
+ try:
+ dict_to_update, key_to_update, _ = _iterate_keys(dot_k, db_item, populate=False)
+ del dict_to_update[key_to_update]
+ updated = True
+ except Exception:
+ pass
+ if pull:
+ for dot_k, v in pull.items():
+ try:
+ dict_to_update, key_to_update, _ = _iterate_keys(dot_k, db_item, populate=False)
+ except Exception:
+ continue
+ if key_to_update not in dict_to_update:
+ continue
+ if not isinstance(dict_to_update[key_to_update], list):
+ raise DbException("Cannot pull '{}'. Target is not a list".format(dot_k))
+ while v in dict_to_update[key_to_update]:
+ dict_to_update[key_to_update].remove(v)
+ updated = True
+ if pull_list:
+ for dot_k, v in pull_list.items():
+ if not isinstance(v, list):
+ raise DbException("Invalid content at pull_list, '{}' must be an array".format(dot_k),
+ http_code=HTTPStatus.BAD_REQUEST)
+ try:
+ dict_to_update, key_to_update, _ = _iterate_keys(dot_k, db_item, populate=False)
+ except Exception:
+ continue
+ if key_to_update not in dict_to_update:
+ continue
+ if not isinstance(dict_to_update[key_to_update], list):
+ raise DbException("Cannot pull_list '{}'. Target is not a list".format(dot_k))
+ for single_v in v:
+ while single_v in dict_to_update[key_to_update]:
+ dict_to_update[key_to_update].remove(single_v)
+ updated = True
+ if push:
+ for dot_k, v in push.items():
+ dict_to_update, key_to_update, populated = _iterate_keys(dot_k, db_item)
+ if isinstance(dict_to_update, dict) and key_to_update not in dict_to_update:
+ dict_to_update[key_to_update] = [v]
+ updated = True
+ elif populated and dict_to_update[key_to_update] is None:
+ dict_to_update[key_to_update] = [v]
+ updated = True
+ elif not isinstance(dict_to_update[key_to_update], list):
+ raise DbException("Cannot push '{}'. Target is not a list".format(dot_k))
+ else:
+ dict_to_update[key_to_update].append(v)
+ updated = True
+ if push_list:
+ for dot_k, v in push_list.items():
+ if not isinstance(v, list):
+ raise DbException("Invalid content at push_list, '{}' must be an array".format(dot_k),
+ http_code=HTTPStatus.BAD_REQUEST)
+ dict_to_update, key_to_update, populated = _iterate_keys(dot_k, db_item)
+ if isinstance(dict_to_update, dict) and key_to_update not in dict_to_update:
+ dict_to_update[key_to_update] = v.copy()
+ updated = True
+ elif populated and dict_to_update[key_to_update] is None:
+ dict_to_update[key_to_update] = v.copy()
+ updated = True
+ elif not isinstance(dict_to_update[key_to_update], list):
+ raise DbException("Cannot push '{}'. Target is not a list".format(dot_k),
+ http_code=HTTPStatus.CONFLICT)
+ else:
+ dict_to_update[key_to_update] += v
+ updated = True
+
+ return updated
+ except DbException:
+ raise
+ except Exception as e: # TODO refine
+ raise DbException(str(e))
+
+ def set_one(self, table, q_filter, update_dict, fail_on_empty=True, unset=None, pull=None, push=None,
+ push_list=None, pull_list=None):
+ """
+ Modifies an entry at database
+ :param table: collection or table
+ :param q_filter: Filter
+ :param update_dict: Plain dictionary with the content to be updated. It is a dot separated keys and a value
+ :param fail_on_empty: If nothing matches filter it returns None unless this flag is set tu True, in which case
+ it raises a DbException
+ :param unset: Plain dictionary with the content to be removed if exist. It is a dot separated keys, value is
+ ignored. If not exist, it is ignored
+ :param pull: Plain dictionary with the content to be removed from an array. It is a dot separated keys and value
+ if exist in the array is removed. If not exist, it is ignored
+ :param pull_list: Same as pull but values are arrays where each item is removed from the array
+ :param push: Plain dictionary with the content to be appended to an array. It is a dot separated keys and value
+ is appended to the end of the array
+ :param push_list: Same as push but values are arrays where each item is and appended instead of appending the
+ whole array
+ :return: Dict with the number of entries modified. None if no matching is found.
+ """
+ with self.lock:
+ for i, db_item in self._find(table, self._format_filter(q_filter)):
+ updated = self._update(db_item, update_dict, unset=unset, pull=pull, push=push, push_list=push_list,
+ pull_list=pull_list)
+ return {"updated": 1 if updated else 0}