659 lines
24 KiB
Python
659 lines
24 KiB
Python
#
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# Gramps - a GTK+/GNOME based genealogy program
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#
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# Copyright (C) 2012 Doug Blank <doug.blank@gmail.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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#
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"""
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This package implements an object difference engine.
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"""
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import os
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from gramps.cli.user import User
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from ..dbstate import DbState
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from gramps.cli.grampscli import CLIManager
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from ..plug import BasePluginManager
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from gramps.plugins.database.dictionarydb import DictionaryDb
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from gramps.gen.lib.handle import HandleClass, Handle
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from gramps.gen.lib import *
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from gramps.gen.lib.personref import PersonRef
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from gramps.gen.lib.eventref import EventRef
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from ..const import GRAMPS_LOCALE as glocale
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from ..constfunc import handle2internal
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_ = glocale.translation.gettext
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def get_schema(cls):
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"""
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Given a gramps.gen.lib class, or class name, return a dictionary
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containing the schema. The schema is a dictionary of fieldname
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keys with type as value.
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Also, the schema includes the same metadata fields as does struct,
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including "_class", returned as real class of cls.
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"""
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orig_cls = cls
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# Get type as a gramps.gen.lib string name
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if isinstance(cls, type):
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cls = cls().__class__.__name__
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elif isinstance(cls, object) and not isinstance(cls, str):
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cls = cls.__class__.__name__
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### Is there a Path?
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if "." in cls:
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items = parse(cls) # "Person.alternate_names"
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cls, path = items[0], items[1:]
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else:
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path = []
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# Now get the schema
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if cls in ("str", "int", "bool", "float", "long", "list"):
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schema = orig_cls
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elif cls == "Person":
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schema = {
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"_class": Person,
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"handle": Handle("Person", "PERSON-HANDLE"),
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"gramps_id": str,
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"gender": int,
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"primary_name": Name,
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"alternate_names": [Name],
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"death_ref_index": int,
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"birth_ref_index": int,
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"event_ref_list": [EventRef],
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"family_list": [Handle("Family", "FAMILY-HANDLE")],
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"parent_family_list": [Handle("Family", "FAMILY-HANDLE")],
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"media_list": [MediaRef],
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"address_list": [Address],
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"attribute_list": [Attribute],
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"urls": [Url],
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"lds_ord_list": [LdsOrd],
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"citation_list": [Handle("Citation", "CITATION-HANDLE")],
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"note_list": [Handle("Note", "NOTE-HANDLE")],
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"change": int,
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"tag_list": [Handle("Tag", "TAG-HANDLE")],
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"private": bool,
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"person_ref_list": [PersonRef]
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}
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elif cls == "Name":
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schema = {
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"_class": Name,
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"private": bool,
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"citation_list": [Handle("Citation", "CITATION-HANDLE")],
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"note_list": [Handle("Note", "NOTE-HANDLE")],
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"date": Date,
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"first_name": str,
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"surname_list": [Surname],
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"suffix": str,
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"title": str,
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"type": NameType,
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"group_as": str,
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"sort_as": int,
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"display_as": int,
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"call": str,
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"nick": str,
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"famnick": str,
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}
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else:
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raise AttributeError("unknown class '%s'" % cls)
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# walk down path, if given:
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for p in range(len(path)):
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# could be a list
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item = path[p]
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if isinstance(schema, (list, tuple)):
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schema = schema[int(item)]
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else:
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schema = schema[item]
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if isinstance(schema, type):
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schema = get_schema(schema)
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return schema
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def parse(string):
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"""
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Break a string up into a struct-path. Used by get_schema() and setitem().
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>>> parse("primary_name.first_name.startswith('Sarah')")
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["primary_name", "first_name", "startswith", "('Sarah')"]
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>>> parse("primary_name.surname_list[0].surname.startswith('Smith')")
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["primary_name", "surname_list", "[0]", "surname", "startswith", "('Smith')"]
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"""
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# FIXME: handle nested same-structures, (len(list) + 1)
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retval = []
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stack = []
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current = ""
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for p in range(len(string)):
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c = string[p]
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if c == "]":
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if stack and stack[-1] == "[": # end
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stack.pop(-1)
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current += c
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retval.append(current)
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current = ""
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elif c == "[":
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stack.append(c)
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retval.append(current)
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current = ""
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current += c
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elif c in ["'", '"']:
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if stack and stack[-1] == c: # end
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stack.pop(-1)
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current += c
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if stack and stack[-1] in ["'", '"', '[']: # in quote or args
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pass
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else:
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current += c
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retval.append(current)
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current = ""
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else: # start
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stack.append(c)
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current += c
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elif c == ".":
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retval.append(current)
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current = ""
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elif stack and stack[-1] in ["'", '"', '[']: # in quote or args
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current += c
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else:
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current += c
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if current:
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retval.append(current)
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return retval
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def import_as_dict(filename, user=None):
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"""
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Import the filename into a DictionaryDb and return it.
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"""
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if user is None:
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user = User()
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db = DictionaryDb()
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db.load(None)
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db.set_feature("skip-import-additions", True)
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dbstate = DbState()
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climanager = CLIManager(dbstate, setloader=False, user=user)
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climanager.do_reg_plugins(dbstate, None)
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pmgr = BasePluginManager.get_instance()
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(name, ext) = os.path.splitext(os.path.basename(filename))
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format = ext[1:].lower()
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import_list = pmgr.get_reg_importers()
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for pdata in import_list:
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if format == pdata.extension:
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mod = pmgr.load_plugin(pdata)
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if not mod:
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for item in pmgr.get_fail_list():
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name, error_tuple, pdata = item
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# (filename, (exception-type, exception, traceback), pdata)
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etype, exception, traceback = error_tuple
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#print("ERROR:", name, exception)
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return False
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import_function = getattr(mod, pdata.import_function)
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results = import_function(db, filename, user)
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if results is None:
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return None
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return db
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return None
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def diff_dates(json1, json2):
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"""
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Compare two json date objects. Returns True if different.
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"""
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if json1 == json2: # if same, then Not Different
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return False # else, they still might be Not Different
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elif isinstance(json1, dict) and isinstance(json2, dict):
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if json1["dateval"] == json2["dateval"] and json2["dateval"] != 0:
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return False
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elif json1["text"] == json2["text"]:
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return False
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else:
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return True
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else:
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return True
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def diff_items(path, json1, json2):
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"""
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Compare two json objects. Returns True if different.
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"""
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if json1 == json2:
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return False
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elif isinstance(json1, list) and isinstance(json2, list):
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if len(json1) != len(json2):
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return True
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else:
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pos = 0
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for v1, v2 in zip(json1, json2):
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result = diff_items(path + ("[%d]" % pos), v1, v2)
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if result:
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return True
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pos += 1
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return False
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elif isinstance(json1, dict) and isinstance(json2, dict):
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for key in json1.keys():
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if key == "change":
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continue # don't care about time differences, only data changes
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elif key == "date":
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result = diff_dates(json1["date"], json2["date"])
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if result:
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#print("different dates", path)
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#print(" old:", json1["date"])
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#print(" new:", json2["date"])
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return True
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else:
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result = diff_items(path + "." + key, json1[key], json2[key])
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if result:
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return True
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return False
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else:
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#print("different values", path)
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#print(" old:", json1)
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#print(" new:", json2)
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return True
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def diff_dbs(db1, db2, user=None):
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"""
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1. new objects => mark for insert
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2. deleted objects, no change locally after delete date => mark
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for deletion
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3. deleted objects, change locally => mark for user confirm for
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deletion
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4. updated objects => do a diff on differences, mark origin
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values as new data
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"""
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if user is None:
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user = User()
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missing_from_old = []
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missing_from_new = []
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diffs = []
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with user.progress(_('Family Tree Differences'),
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_('Searching...'), 10) as step:
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for item in ['Person', 'Family', 'Source', 'Citation', 'Event', 'Media',
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'Place', 'Repository', 'Note', 'Tag']:
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step()
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handles1 = sorted([handle2internal(handle) for handle in db1._tables[item]["handles_func"]()])
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handles2 = sorted([handle2internal(handle) for handle in db2._tables[item]["handles_func"]()])
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p1 = 0
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p2 = 0
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while p1 < len(handles1) and p2 < len(handles2):
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if handles1[p1] == handles2[p2]: # in both
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item1 = db1._tables[item]["handle_func"](handles1[p1])
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item2 = db2._tables[item]["handle_func"](handles2[p2])
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diff = diff_items(item, item1.to_struct(), item2.to_struct())
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if diff:
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diffs += [(item, item1, item2)]
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# else same!
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p1 += 1
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p2 += 1
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elif handles1[p1] < handles2[p2]: # p1 is mssing in p2
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item1 = db1._tables[item]["handle_func"](handles1[p1])
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missing_from_new += [(item, item1)]
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p1 += 1
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elif handles1[p1] > handles2[p2]: # p2 is mssing in p1
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item2 = db2._tables[item]["handle_func"](handles2[p2])
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missing_from_old += [(item, item2)]
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p2 += 1
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while p1 < len(handles1):
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item1 = db1._tables[item]["handle_func"](handles1[p1])
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missing_from_new += [(item, item1)]
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p1 += 1
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while p2 < len(handles2):
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item2 = db2._tables[item]["handle_func"](handles2[p2])
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missing_from_old += [(item, item2)]
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p2 += 1
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return diffs, missing_from_old, missing_from_new
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def diff_db_to_file(old_db, filename, user=None):
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if user is None:
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user = User()
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# First, get data as a DictionaryDb
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new_db = import_as_dict(filename, user, user)
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if new_db is not None:
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# Next get differences:
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diffs, m_old, m_new = diff_dbs(old_db, new_db, user)
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return diffs, m_old, m_new
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def from_struct(struct):
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"""
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Given a struct with metadata, create a Gramps object.
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"""
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from gramps.gen.lib import (Person, Family, Event, Source, Place, Citation,
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Repository, MediaObject, Note, Tag)
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if isinstance(struct, dict):
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if "_class" in struct.keys():
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if struct["_class"] == "Person":
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return Person.create(Person.from_struct(struct))
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elif struct["_class"] == "Family":
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return Family.create(Family.from_struct(struct))
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elif struct["_class"] == "Event":
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return Event.create(Event.from_struct(struct))
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elif struct["_class"] == "Source":
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return Source.create(Source.from_struct(struct))
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elif struct["_class"] == "Place":
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return Place.create(Place.from_struct(struct))
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elif struct["_class"] == "Citation":
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return Citation.create(Citation.from_struct(struct))
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elif struct["_class"] == "Repository":
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return Repository.create(Repository.from_struct(struct))
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elif struct["_class"] == "MediaObject":
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return MediaObject.create(MediaObject.from_struct(struct))
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elif struct["_class"] == "Note":
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return Note.create(Note.from_struct(struct))
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elif struct["_class"] == "Tag":
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return Tag.create(Tag.from_struct(struct))
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raise AttributeError("invalid struct: %s" % struct)
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def get_dependencies(struct):
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"""
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Walk the struct recursively, getting all dependencies on other
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objects.
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"""
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if isinstance(struct, HandleClass):
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return set([(struct.classname, str(struct))])
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elif isinstance(struct, (tuple, list)):
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retval = set([])
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for item in struct:
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retval.update(get_dependencies(item))
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return retval
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elif isinstance(struct, dict):
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retval = set([])
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for key in struct.keys():
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retval.update(get_dependencies(struct[key]))
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return retval
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else:
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return set([])
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class Struct(object):
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"""
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Class for getting and setting parts of a struct by dotted path.
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>>> s = Struct({"gramps_id": "I0001", ...}, database)
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>>> s.primary_name.surname_list[0].surname
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Jones
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>>> s.primary_name.surname_list[0].surname = "Smith"
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>>> s.primary_name.surname_list[0]surname
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Smith
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"""
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def __init__(self, struct, db=None):
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self.struct = struct
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self.db = db
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if self.db:
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self.transaction = db.get_transaction_class()
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else:
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self.transaction = None
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def __setitem__(self, item, value):
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self.struct[item] = value
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def __eq__(self, other):
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if isinstance(other, Struct):
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return self.struct == other.struct
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elif isinstance(self.struct, list):
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## FIXME: self.struct can be a dict, list, etc
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for item in self.struct:
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if item == other:
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return True
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return False
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else:
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return self.struct == other
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def __lt__(self, other):
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if isinstance(other, Struct):
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return self.struct < other.struct
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else:
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return self.struct < other
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def __gt__(self, other):
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if isinstance(other, Struct):
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return self.struct > other.struct
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else:
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return self.struct > other
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def __le__(self, other):
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if isinstance(other, Struct):
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return self.struct <= other.struct
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else:
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return self.struct <= other
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def __ge__(self, other):
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if isinstance(other, Struct):
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return self.struct >= other.struct
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else:
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return self.struct >= other
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def __ne__(self, other):
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if isinstance(other, Struct):
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return self.struct != other.struct
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else:
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return self.struct != other
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def __len__(self):
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return len(self.struct)
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def __contains__(self, item):
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return item in self.struct
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def __call__(self, *args, **kwargs):
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"""
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You can use this to select and filter a list of structs.
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args are dotted strings of what componets of the structs to
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select, and kwargs is the selection criteria, double-under
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scores represent dots.
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If no args are given, all are provided.
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"""
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selected = self.struct # better be dicts
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# First, find elements of the list that match any given
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# selection criteria:
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selected = self.struct # assume dicts
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# assume True
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to_delete = []
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for key in kwargs: # value="Social Security Number"
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parts = self.getitem_from_path(key.split("__")) # returns all
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# This will return a list; we keep the ones that match
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for p in range(len(parts)):
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# if it matches, keep it:
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if parts[p] != kwargs[key]:
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to_delete.append(p)
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# delete from highest to lowest, to use pop:
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for p in reversed(to_delete):
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selected.pop(p)
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# now select which parts to show:
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if args: # just some of the parts, ["type.string", ...]
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results = []
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for select in selected: # dict in dicts
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parts = []
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for item in args: # ["type.string"]
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items = item.split(".") # "type.string"
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values = Struct(select, self.db).getitem_from_path(items)
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if values:
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parts.append((item, values))
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results.append(parts) # return [["type.string", "Social Security Number"], ...]
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else: # return all
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results = selected
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# return them
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return results
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def select(self, thing1, thing2):
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if thing2 == "*":
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return thing1
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elif thing2 in thing1:
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return thing2
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elif thing1 == thing2:
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return thing1
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else:
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return None
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def __getattr__(self, attr):
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"""
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Called when getattr fails. Lookup attr in struct; returns Struct
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if more struct.
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>>> Struct({}, db).primary_name
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returns: Struct([], db) or value
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struct can be list/tuple, dict with _class, or value (including dict).
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self.setitem_from_path(path, v) should be used to set value of
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item.
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"""
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if isinstance(self.struct, dict) and "_class" in self.struct.keys():
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# this is representing an object
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if attr in self.struct.keys():
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return self.handle_join(self.struct[attr])
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else:
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raise AttributeError("attempt to access a property of an object: '%s', '%s'" % (self.struct, attr))
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elif isinstance(self.struct, HandleClass):
|
|
struct = self.handle_join(self.struct)
|
|
return getattr(struct, attr)
|
|
elif isinstance(self.struct, (list, tuple)):
|
|
# get first item in list that matches:
|
|
sublist = [getattr(Struct(item, self.db), attr) for item in self.struct]
|
|
return Struct(sublist, self.db)
|
|
else:
|
|
# better be a property of the list/tuple/dict/value:
|
|
return getattr(self.struct, attr)
|
|
|
|
def __getitem__(self, item):
|
|
"""
|
|
Called when getitem fails. Lookup item in struct; returns Struct
|
|
if more struct.
|
|
|
|
>>> Struct({}, db)[12]
|
|
returns: Struct([], db) or value
|
|
|
|
struct can be list/tuple, dict with _class, or value (including dict).
|
|
"""
|
|
if isinstance(item, str) and isinstance(self.struct, (list, tuple)):
|
|
fields = [field.strip() for field in item.split(",")]
|
|
results = []
|
|
for item in self.struct:
|
|
sublist = [getattr(Struct(item, self.db), field) for field in fields]
|
|
if any(sublist):
|
|
results.append(tuple(sublist))
|
|
return results if results else None
|
|
else:
|
|
return self.handle_join(self.struct[item])
|
|
|
|
def getitem_from_path(self, items):
|
|
"""
|
|
path is a list
|
|
"""
|
|
current = self
|
|
for item in items:
|
|
current = getattr(current, item)
|
|
return current
|
|
|
|
def get_object_from_handle(self, handle):
|
|
return self.db.get_from_name_and_handle(handle.classname, str(handle))
|
|
|
|
def handle_join(self, item):
|
|
"""
|
|
If the item is a handle, look up reference object.
|
|
"""
|
|
if isinstance(item, HandleClass) and self.db:
|
|
obj = self.get_object_from_handle(item)
|
|
if obj:
|
|
return Struct(obj.to_struct(), self.db)
|
|
else:
|
|
raise AttributeError("missing object: %s" % item)
|
|
elif isinstance(item, (list, tuple)):
|
|
return Struct(item, self.db)
|
|
elif isinstance(item, dict) and "_class" in item.keys():
|
|
return Struct(item, self.db)
|
|
else:
|
|
return item
|
|
|
|
def setitem(self, path, value, trans=None):
|
|
"""
|
|
Given a path to a struct part, set the last part to value.
|
|
|
|
>>> Struct(struct).setitem("primary_name.surname_list.0.surname", "Smith")
|
|
"""
|
|
return self.setitem_from_path(parse(path), value, trans)
|
|
|
|
def primary_object_q(self, _class):
|
|
return _class in ["Person", "Family", "Event", "Source", "Citation",
|
|
"Tag", "Repository", "Note", "Media"]
|
|
|
|
def setitem_from_path(self, path, value, trans=None):
|
|
"""
|
|
Given a path to a struct part, set the last part to value.
|
|
|
|
>>> Struct(struct).setitem_from_path(["primary_name", "surname_list", "[0]", "surname"], "Smith", transaction)
|
|
"""
|
|
path, item = path[:-1], path[-1]
|
|
if item.startswith("["):
|
|
item = item[1:-1]
|
|
struct = self.struct
|
|
primary_obj = struct
|
|
for p in range(len(path)):
|
|
part = path[p]
|
|
if part.startswith("["): # getitem
|
|
struct = struct[eval(part[1:-1])] # for int or string use
|
|
else: # getattr
|
|
struct = struct[part]
|
|
if struct is None: # invalid part to set, skip
|
|
return
|
|
if isinstance(struct, HandleClass):
|
|
struct = self.get_object_from_handle(struct).to_struct()
|
|
# keep track of primary object for update, below
|
|
if isinstance(struct, dict) and "_class" in struct and self.primary_object_q(struct["_class"]):
|
|
primary_obj = struct
|
|
# struct is now set
|
|
if item in struct and isinstance(struct[item], list): # assigning to a list
|
|
if value is not None:
|
|
struct[item].append(value) # we append the value
|
|
else:
|
|
struct[item] = []
|
|
elif isinstance(struct, (list, tuple)):
|
|
pos = int(item)
|
|
if pos < len(struct):
|
|
if value is not None:
|
|
struct[int(item)] = value
|
|
else:
|
|
struct.pop(int(item))
|
|
elif isinstance(struct, dict):
|
|
if item in struct.keys():
|
|
struct[item] = value
|
|
elif hasattr(struct, item):
|
|
setattr(struct, item, value)
|
|
else:
|
|
return
|
|
self.update_db(primary_obj, trans)
|
|
|
|
def update_db(self, struct, trans=None):
|
|
if self.db:
|
|
if trans is None:
|
|
with self.transaction("Struct Update", self.db, batch=True) as trans:
|
|
new_obj = from_struct(struct)
|
|
name, handle = struct["_class"], struct["handle"]
|
|
old_obj = self.db.get_from_name_and_handle(name, handle)
|
|
if old_obj:
|
|
commit_func = self.db._tables[name]["commit_func"]
|
|
commit_func(new_obj, trans)
|
|
else:
|
|
add_func = self.db._tables[name]["add_func"]
|
|
add_func(new_obj, trans)
|
|
else:
|
|
new_obj = from_struct(struct)
|
|
name, handle = struct["_class"], struct["handle"]
|
|
old_obj = self.db.get_from_name_and_handle(name, handle)
|
|
if old_obj:
|
|
commit_func = self.db._tables[name]["commit_func"]
|
|
commit_func(new_obj, trans)
|
|
else:
|
|
add_func = self.db._tables[name]["add_func"]
|
|
add_func(new_obj, trans)
|
|
|
|
def __str__(self):
|
|
return str(self.struct)
|
|
|