API: functions to edit meta data

[andrejberg]

Idea

API contains set of simple add_ remove_ edit_ functions.

Input of functions is always:

db_path, entry_id, **kwargs

add_ / remove_

• entry
  • checks if entry_id is already used in DB
• tag(tag_name)
• group(group_name)
• keyword(**kwargs)
  • means it works for each kw_name = kwvalue pair
  • use add_ function for edit?
• meta_group(group_name)
• meta_entry(group_name, **kwargs)

[andrejberg]

Bugs/Problems

• [ ] some API add/update functions return something other do not
• [ ] what is the difference between add_meta_data() and update_meta_data() ?