#
# Gramps - a GTK+/GNOME based genealogy program
#
# Copyright (C) 2007       Brian G. Matherly
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, 
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#

# $Id$

"""
Proxy class for the GRAMPS databases. Filter out all data marked private.
"""

__author__ = "Brian Matherly"
__revision__ = "$Revision$"

#-------------------------------------------------------------------------
#
# GRAMPS libraries
#
#-------------------------------------------------------------------------
from gen.lib import *
from proxybase import ProxyDbBase

class PrivateProxyDb(ProxyDbBase):
    """
    A proxy to a Gramps database. This proxy will act like a Gramps database,
    but all data marked private will be hidden from the user.
    """

    def __init__(self,db):
        """
        Creates a new PrivateProxyDb instance. 
        """
        ProxyDbBase.__init__(self, db)

    def get_person_from_handle(self, handle):
        """
        Finds a Person in the database from the passed gramps' ID.
        If no such Person exists, None is returned.
        """
        person = self.db.get_person_from_handle(handle)
        if person and person.get_privacy() == False:
            return sanitize_person(self.db,person)
        return None

    def get_source_from_handle(self, handle):
        """
        Finds a Source in the database from the passed gramps' ID.
        If no such Source exists, None is returned.
        """
        source = self.db.get_source_from_handle(handle)
        if source and source.get_privacy() == False:
            return sanitize_source(self.db,source)
        return None

    def get_object_from_handle(self, handle):
        """
        Finds an Object in the database from the passed gramps' ID.
        If no such Object exists, None is returned.
        """
        media = self.db.get_object_from_handle(handle)
        if media and media.get_privacy() == False:
            return sanitize_media(self.db,media)
        return None

    def get_place_from_handle(self, handle):
        """
        Finds a Place in the database from the passed gramps' ID.
        If no such Place exists, None is returned.
        """
        place = self.db.get_place_from_handle(handle)
        if place and place.get_privacy() == False:
            return sanitize_place(self.db,place)
        return None

    def get_event_from_handle(self, handle):
        """
        Finds a Event in the database from the passed gramps' ID.
        If no such Event exists, None is returned.
        """
        event = self.db.get_event_from_handle(handle)
        if event and event.get_privacy() == False:
            return sanitize_event(self.db,event)
        return None

    def get_family_from_handle(self, handle):
        """
        Finds a Family in the database from the passed gramps' ID.
        If no such Family exists, None is returned.
        """
        family = self.db.get_family_from_handle(handle)
        if family and family.get_privacy() == False:
            return sanitize_family(self.db,family)
        return None

    def get_repository_from_handle(self, handle):
        """
        Finds a Repository in the database from the passed gramps' ID.
        If no such Repository exists, None is returned.
        """
        repository = self.db.get_repository_from_handle(handle)
        if repository and repository.get_privacy() == False:
            return sanitize_repository(self.db,repository)
        return None

    def get_note_from_handle(self, handle):
        """
        Finds a Note in the database from the passed gramps' ID.
        If no such Note exists, None is returned.
        """
        note = self.db.get_note_from_handle(handle)
        if note and note.get_privacy() == False:
            return note
        return None

    def get_person_from_gramps_id(self, val):
        """
        Finds a Person in the database from the passed GRAMPS ID.
        If no such Person exists, None is returned.
        """
        person = self.db.get_person_from_gramps_id(val)
        if person.get_privacy() == False:
            return sanitize_person(self.db,person)
        return None

    def get_family_from_gramps_id(self, val):
        """
        Finds a Family in the database from the passed GRAMPS ID.
        If no such Family exists, None is returned.
        """
        family = self.db.get_family_from_gramps_id(val)
        if family.get_privacy() == False:
            return sanitize_family(self.db,family)
        return None

    def get_event_from_gramps_id(self, val):
        """
        Finds an Event in the database from the passed GRAMPS ID.
        If no such Event exists, None is returned.
        """
        event = self.db.get_event_from_gramps_id(val)
        if event.get_privacy() == False:
            return sanitize_event(self.db,event)
        return None

    def get_place_from_gramps_id(self, val):
        """
        Finds a Place in the database from the passed gramps' ID.
        If no such Place exists, None is returned.
        """
        place = self.db.get_place_from_gramps_id(val)
        if place.get_privacy() == False:
            return sanitize_place(self.db,place)
        return None

    def get_source_from_gramps_id(self, val):
        """
        Finds a Source in the database from the passed gramps' ID.
        If no such Source exists, None is returned.
        """
        source = self.db.get_source_from_gramps_id(val)
        if source.get_privacy() == False:
            return sanitize_source(self.db,source)
        return None

    def get_object_from_gramps_id(self, val):
        """
        Finds a MediaObject in the database from the passed gramps' ID.
        If no such MediaObject exists, None is returned.
        """
        object = self.db.get_object_from_gramps_id(val)
        if object.get_privacy() == False:
            return sanitize_media(self.db,object)
        return None

    def get_repository_from_gramps_id(self, val):
        """
        Finds a Repository in the database from the passed gramps' ID.
        If no such Repository exists, None is returned.
        """
        repository = self.db.get_repository_from_gramps_id(val)
        if repository.get_privacy() == False:
            return sanitize_repository(self.db,repository)
        return None

    def get_note_from_gramps_id(self, val):
        """
        Finds a Note in the database from the passed gramps' ID.
        If no such Note exists, None is returned.
        """
        note = self.db.get_note_from_gramps_id(val)
        if note.get_privacy() == False:
            return note
        return None

    def get_person_handles(self, sort_handles=True):
        """
        Returns a list of database handles, one handle for each Person in
        the database. If sort_handles is True, the list is sorted by surnames
        """
        handles = []
        for handle in self.db.get_person_handles(sort_handles):
            person = self.db.get_person_from_handle(handle)
            if person.get_privacy() == False:
                handles.append(handle)
        return handles

    def get_place_handles(self, sort_handles=True):
        """
        Returns a list of database handles, one handle for each Place in
        the database. If sort_handles is True, the list is sorted by
        Place title.
        """
        handles = []
        for handle in self.db.get_place_handles(sort_handles):
            place = self.db.get_place_from_handle(handle)
            if place.get_privacy() == False:
                handles.append(handle)
        return handles

    def get_source_handles(self, sort_handles=True):
        """
        Returns a list of database handles, one handle for each Source in
        the database. If sort_handles is True, the list is sorted by
        Source title.
        """
        handles = []
        for handle in self.db.get_source_handles(sort_handles):
            source = self.db.get_source_from_handle(handle)
            if source.get_privacy() == False:
                handles.append(handle)
        return handles

    def get_media_object_handles(self, sort_handles=True):
        """
        Returns a list of database handles, one handle for each MediaObject in
        the database. If sort_handles is True, the list is sorted by title.
        """
        handles = []
        for handle in self.db.get_media_object_handles(sort_handles):
            object = self.db.get_object_from_handle(handle)
            if object.get_privacy() == False:
                handles.append(handle)
        return handles

    def get_event_handles(self):
        """
        Returns a list of database handles, one handle for each Event in
        the database. 
        """
        handles = []
        for handle in self.db.get_event_handles():
            event = self.db.get_event_from_handle(handle)
            if event.get_privacy() == False:
                handles.append(handle)
        return handles

    def get_family_handles(self):
        """
        Returns a list of database handles, one handle for each Family in
        the database.
        """
        handles = []
        for handle in self.db.get_family_handles():
            family = self.db.get_family_from_handle(handle)
            if family.get_privacy() == False:
                handles.append(handle)
        return handles

    def get_repository_handles(self):
        """
        Returns a list of database handles, one handle for each Repository in
        the database.
        """
        handles = []
        for handle in self.db.get_repository_handles():
            repository = self.db.get_repository_from_handle(handle)
            if repository.get_privacy() == False:
                handles.append(handle)
        return handles

    def get_note_handles(self):
        """
        Returns a list of database handles, one handle for each Note in
        the database.
        """
        handles = []
        for handle in self.db.get_note_handles():
            note = self.db.get_note_from_handle(handle)
            if note.get_privacy() == False:
                handles.append(handle)
        return handles

    def get_researcher(self):
        """returns the Researcher instance, providing information about
        the owner of the database"""
        return self.db.get_researcher()

    def get_default_person(self):
        """returns the default Person of the database"""
        person = self.db.get_default_person()
        if person and person.get_privacy() == False:
            return sanitize_person(self.db,person)
        return None

    def get_default_handle(self):
        """returns the default Person of the database"""
        handle = self.db.get_default_handle()
        person = self.db.get_person_from_handle(handle)
        if person and person.get_privacy() == False:
            return handle
        return None
    
    def has_person_handle(self, handle):
        """
        returns True if the handle exists in the current Person database.
        """
        has_person = False
        person = self.db.get_person_from_handle()
        if person and not person.get_privacy():
                has_person = True
        return has_person         

    def has_event_handle(self, handle):
        """
        returns True if the handle exists in the current Event database.
        """
        has_event = False
        event = self.db.get_event_from_handle()
        if event and not event.get_privacy():
                has_event = True
        return has_event

    def has_source_handle(self, handle):
        """
        returns True if the handle exists in the current Source database.
        """
        has_source = False
        source = self.db.get_source_from_handle()
        if source and not source.get_privacy():
                has_source = True
        return has_source 

    def has_place_handle(self, handle):
        """
        returns True if the handle exists in the current Place database.
        """
        has_place = False
        place = self.db.get_place_from_handle()
        if place and not place.get_privacy():
                has_place = True
        return has_place

    def has_family_handle(self, handle):            
        """
        returns True if the handle exists in the current Family database.
        """
        has_family = False
        family = self.db.get_family_from_handle()
        if family and not family.get_privacy():
                has_family = True
        return has_family

    def has_object_handle(self, handle):
        """
        returns True if the handle exists in the current MediaObjectdatabase.
        """
        has_object = False
        object = self.db.get_object_from_handle()
        if object and not object.get_privacy():
                has_object = True
        return has_object

    def has_repository_handle(self, handle):
        """
        returns True if the handle exists in the current Repository database.
        """
        has_repository = False
        repository = self.db.get_repository_from_handle()
        if repository and not repository.get_privacy():
                has_repository = True
        return has_repository

    def has_note_handle(self, handle):
        """
        returns True if the handle exists in the current Note database.
        """
        has_note = False
        note = self.db.get_note_from_handle()
        if note and not note.get_privacy():
                has_note = True
        return has_note

    def find_backlink_handles(self, handle, include_classes=None):
        """
        Find all objects that hold a reference to the object handle.
        Returns an interator over alist of (class_name, handle) tuples.

        @param handle: handle of the object to search for.
        @type handle: database handle
        @param include_classes: list of class names to include in the results.
                                Default: None means include all classes.
        @type include_classes: list of class names
        
        This default implementation does a sequencial scan through all
        the primary object databases and is very slow. Backends can
        override this method to provide much faster implementations that
        make use of additional capabilities of the backend.

        Note that this is a generator function, it returns a iterator for
        use in loops. If you want a list of the results use:

        >    result_list = [i for i in find_backlink_handles(handle)]
        """
        
        raise NotImplementedError
        # This isn't done yet because it doesn't check if references are
        # private (like a SourceRef or MediaRef). It only checks if the 
        # referenced object is private.

        handle_itr = self.db.find_backlink_handles(handle, include_classes)
        for (class_name, handle) in handle_itr:
            if class_name == 'Person':
                obj = self.db.get_person_from_handle(handle)
            elif class_name == 'Family':
                obj = self.db.get_family_from_handle(handle)
            elif class_name == 'Event':
                obj = self.db.get_event_from_handle(handle)
            elif class_name == 'Source':
                obj = self.db.get_source_from_handle(handle)
            elif class_name == 'Place':
                obj = self.db.get_place_from_handle(handle)
            elif class_name == 'MediaObject':
                obj = self.db.get_object_from_handle(handle)
            elif class_name == 'Note':
                obj = self.db.get_note_from_handle(handle)
            elif class_name == 'Repository':
                obj = self.db.get_repository_from_handle(handle)
            else:
                raise NotImplementedError
            
            if obj.get_privacy() == False:
                yield (class_name,handle)
        return


def copy_media_ref_list(db,original_obj,clean_obj):
    """
    Copies media references from one object to another - excluding private 
    references and references to private objects.

    @param db: GRAMPS database to which the references belongs
    @type db: GrampsDbBase
    @param original_obj: Object that may have private references
    @type original_obj: MediaBase
    @param clean_obj: Object that will have only non-private references
    @type original_obj: MediaBase
    @returns: Nothing
    """
    for media_ref in original_obj.get_media_list():
        if media_ref.get_privacy() == False:
            handle = media_ref.get_reference_handle()
            media_object = db.get_object_from_handle(handle)
            if media_object.get_privacy() == False:
                clean_obj.add_media_reference(MediaRef(media_ref))

def copy_source_ref_list(db,original_obj,clean_obj):
    """
    Copies source references from one object to another - excluding private 
    references and references to private objects.

    @param db: GRAMPS database to which the references belongs
    @type db: GrampsDbBase
    @param original_obj: Object that may have private references
    @type original_obj: SourceBase
    @param clean_obj: Object that will have only non-private references
    @type original_obj: SourceBase
    @returns: Nothing
    """
    for ref in original_obj.get_source_references():
        if not ref.get_privacy():
            handle = ref.get_reference_handle()
            source = db.get_source_from_handle(handle)
            if source.get_privacy() == False:
                clean_obj.add_source_reference(SourceRef(ref))
                
def copy_notes(db,original_obj,clean_obj):
    """
    Copies notes from one object to another - excluding references to private
    notes.

    @param db: GRAMPS database to which the references belongs
    @type db: GrampsDbBase
    @param original_obj: Object that may have private references
    @type original_obj: NoteBase
    @param clean_obj: Object that will have only non-private references
    @type original_obj: NoteBase
    @returns: Nothing
    """     
    for note_handle in original_obj.get_note_list():
        note = db.get_note_from_handle(note_handle)
        if note.get_privacy() == False:
            clean_obj.add_note(note_handle)
            
def copy_attributes(db,original_obj,clean_obj):
    """
    Copies attributes from one object to another - excluding references to 
    private attributes.

    @param db: GRAMPS database to which the references belongs
    @type db: GrampsDbBase
    @param original_obj: Object that may have private references
    @type original_obj: AttributeBase
    @param clean_obj: Object that will have only non-private references
    @type original_obj: AttributeBase
    @returns: Nothing
    """   
    for attribute in original_obj.get_attribute_list():
        if not attribute.get_privacy():
            new_attribute = Attribute()
            new_attribute.set_type(attribute.get_type())
            new_attribute.set_value(attribute.get_value())
            copy_notes(db,attribute,new_attribute)
            copy_source_ref_list(db,attribute,new_attribute)
            clean_obj.add_attribute(new_attribute)
      
def copy_urls(db,original_obj,clean_obj):
    """
    Copies urls from one object to another - excluding references to 
    private urls.

    @param db: GRAMPS database to which the references belongs
    @type db: GrampsDbBase
    @param original_obj: Object that may have urls
    @type original_obj: UrlBase
    @param clean_obj: Object that will have only non-private urls
    @type original_obj: UrlBase
    @returns: Nothing
    """         
    for url in original_obj.get_url_list():
        if not url.get_privacy():
            clean_obj.add_url(url)
            
def copy_lds_ords(db,original_obj,clean_obj):
    """
    Copies LDS ORDs from one object to another - excluding references to 
    private LDS ORDs.

    @param db: GRAMPS database to which the references belongs
    @type db: GrampsDbBase
    @param original_obj: Object that may have LDS ORDs
    @type original_obj: LdsOrdBase
    @param clean_obj: Object that will have only non-private LDS ORDs
    @type original_obj: LdsOrdBase
    @returns: Nothing
    """         
    for lds_ord in original_obj.get_lds_ord_list():
        if lds_ord.get_privacy() == False:
           clean_obj.add_lds_ord( lds_ord )
           
def copy_addresses(db,original_obj,clean_obj):
    """
    Copies addresses from one object to another - excluding references to 
    private addresses.

    @param db: GRAMPS database to which the references belongs
    @type db: GrampsDbBase
    @param original_obj: Object that may have addresses
    @type original_obj: AddressBase
    @param clean_obj: Object that will have only non-private addresses
    @type original_obj: AddressBase
    @returns: Nothing
    """         
    for address in original_obj.get_address_list():
        if not address.get_privacy():
            clean_obj.add_address(Address(address))
            
def sanitize_name(db,name):
    """
    Creates a new Name instance based off the passed Name
    instance. The returned instance has all private records
    removed from it.
    
    @param db: GRAMPS database to which the Person object belongs
    @type db: GrampsDbBase
    @param name: source Name object that will be copied with
    privacy records removed
    @type name: Name
    @returns: 'cleansed' Name object
    @rtype: Name
    """
    new_name = Name()
    new_name.set_group_as(name.get_group_as())
    new_name.set_sort_as(name.get_sort_as())
    new_name.set_display_as(name.get_display_as())
    new_name.set_call_name(name.get_call_name())
    new_name.set_surname_prefix(name.get_surname_prefix())
    new_name.set_type(name.get_type())
    new_name.set_first_name(name.get_first_name())
    new_name.set_patronymic(name.get_patronymic())
    new_name.set_surname(name.get_surname())
    new_name.set_suffix(name.get_suffix())
    new_name.set_title(name.get_title())
    new_name.set_date_object(name.get_date_object())
    
    copy_source_ref_list(db,name,new_name)
    copy_notes(db,name,new_name)
    
    return new_name
    
def sanitize_event_ref(db,event_ref):
    """
    Creates a new EventRef instance based off the passed EventRef
    instance. The returned instance has all private records
    removed from it.
    
    @param db: GRAMPS database to which the Person object belongs
    @type db: GrampsDbBase
    @param event_ref: source EventRef object that will be copied with
    privacy records removed
    @type event_ref: EventRef
    @returns: 'cleansed' EventRef object
    @rtype: EventRef
    """
    new_ref = EventRef()
    
    new_ref.set_reference_handle(event_ref.get_reference_handle())
    new_ref.set_role(event_ref.get_role())
    copy_notes(db,event_ref,new_ref)
    copy_attributes(db,event_ref,new_ref)
    
    return new_ref

def sanitize_person(db,person):
    """
    Creates a new Person instance based off the passed Person
    instance. The returned instance has all private records
    removed from it.
    
    @param db: GRAMPS database to which the Person object belongs
    @type db: GrampsDbBase
    @param person: source Person object that will be copied with
    privacy records removed
    @type person: Person
    @returns: 'cleansed' Person object
    @rtype: Person
    """
    new_person = Person()

    # copy gender
    new_person.set_gender(person.get_gender())
    new_person.set_gramps_id(person.get_gramps_id())
    new_person.set_handle(person.get_handle())
    
    # copy names if not private
    name = person.get_primary_name()
    if name.get_privacy() or person.get_privacy():
        # Do this so a person always has a primary name of some sort.
        name = Name()
        name.set_surname(_('Private'))
    else:
        name = sanitize_name(db,name)
    new_person.set_primary_name(name)

    # copy Family reference list
    for handle in person.get_family_handle_list():
        family = db.get_family_from_handle(handle)
        if family.get_privacy() == False:
            new_person.add_family_handle(handle)

    # copy Family reference list
    for handle in person.get_parent_family_handle_list():
        family = db.get_family_from_handle(handle)
        if family.get_privacy() == True:
            continue
        child_ref_list = family.get_child_ref_list()
        for child_ref in child_ref_list:
            if child_ref.get_reference_handle() == person.get_handle():
                if child_ref.get_privacy() == False:
                    new_person.add_parent_family_handle(handle)
                break

    for name in person.get_alternate_names():
        if not name.get_privacy():
            new_person.add_alternate_name(sanitize_name(db,name))

    # set complete flag
    new_person.set_marker(person.get_marker())

    # copy event list
    for event_ref in person.get_event_ref_list():
        if event_ref and event_ref.get_privacy() == False:
            event = db.get_event_from_handle(event_ref.ref)
            if not event.get_privacy():
                new_person.add_event_ref(sanitize_event_ref(db,event_ref))

    # Copy birth and death after event list to maintain the order.
    # copy birth event
    event_ref = person.get_birth_ref()
    if event_ref and event_ref.get_privacy() == False:
        event = db.get_event_from_handle(event_ref.ref)
        if not event.get_privacy():
            new_person.set_birth_ref(sanitize_event_ref(db,event_ref))

    # copy death event
    event_ref = person.get_death_ref()
    if event_ref and event_ref.get_privacy() == False:
        event = db.get_event_from_handle(event_ref.ref)
        if not event.get_privacy():
            new_person.set_death_ref(sanitize_event_ref(db,event_ref))

    copy_addresses(db,person,new_person)
    copy_attributes(db,person,new_person)
    copy_source_ref_list(db,person,new_person)
    copy_urls(db,person,new_person)
    copy_media_ref_list(db,person,new_person)
    copy_lds_ords(db,person,new_person)
    copy_notes(db,person,new_person)
    
    return new_person

def sanitize_source(db,source):
    """
    Creates a new Source instance based off the passed Source
    instance. The returned instance has all private records
    removed from it.
    
    @param db: GRAMPS database to which the Person object belongs
    @type db: GrampsDbBase
    @param source: source Source object that will be copied with
    privacy records removed
    @type source: Source
    @returns: 'cleansed' Source object
    @rtype: Source
    """
    new_source = Source()
    
    new_source.set_author(source.get_author())
    new_source.set_title(source.get_title())
    new_source.set_publication_info(source.get_publication_info())
    new_source.set_abbreviation(source.get_abbreviation())
    new_source.set_gramps_id(source.get_gramps_id())
    new_source.set_handle(source.get_handle())
    new_source.set_marker(source.get_marker())
    new_source.set_data_map(source.get_data_map())
    
    for repo_ref in source.get_reporef_list():
        if not repo_ref.get_privacy():
            handle = repo_ref.get_reference_handle()
            repo = db.get_repository_from_handle(handle)
            if repo.get_privacy() == False:
                new_source.add_repo_reference(RepoRef(repo_ref))

    copy_media_ref_list(db,source,new_source)
    copy_notes(db,source,new_source)
    
    return new_source

def sanitize_media(db,media):
    """
    Creates a new MediaObject instance based off the passed Media
    instance. The returned instance has all private records
    removed from it.
    
    @param db: GRAMPS database to which the Person object belongs
    @type db: GrampsDbBase
    @param media: source Media object that will be copied with
    privacy records removed
    @type media: MediaObject
    @returns: 'cleansed' Media object
    @rtype: MediaObject
    """
    new_media = MediaObject()
    
    new_media.set_mime_type(media.get_mime_type())
    new_media.set_path(media.get_path())
    new_media.set_description(media.get_description())
    new_media.set_gramps_id(media.get_gramps_id())
    new_media.set_handle(media.get_handle())
    new_media.set_date_object(media.get_date_object())
    new_media.set_marker(media.get_marker())

    copy_source_ref_list(db,media,new_media)
    copy_attributes(db,media,new_media)
    copy_notes(db,media,new_media)
    
    return new_media

def sanitize_place(db,place):
    """
    Creates a new Place instance based off the passed Place
    instance. The returned instance has all private records
    removed from it.
    
    @param db: GRAMPS database to which the Person object belongs
    @type db: GrampsDbBase
    @param place: source Place object that will be copied with
    privacy records removed
    @type place: Place
    @returns: 'cleansed' Place object
    @rtype: Place
    """
    new_place = Place()
    
    new_place.set_title(place.get_title())
    new_place.set_gramps_id(place.get_gramps_id())
    new_place.set_handle(place.get_handle())
    new_place.set_longitude(place.get_longitude())
    new_place.set_latitude(place.get_latitude())
    new_place.set_main_location(place.get_main_location())
    new_place.set_alternate_locations(place.get_alternate_locations())
    new_place.set_marker(place.get_marker())

    copy_source_ref_list(db,place,new_place)
    copy_notes(db,place,new_place)
    copy_media_ref_list(db,place,new_place)
    copy_urls(db,place,new_place)
    
    return new_place

def sanitize_event(db,event):
    """
    Creates a new Event instance based off the passed Event
    instance. The returned instance has all private records
    removed from it.
    
    @param db: GRAMPS database to which the Person object belongs
    @type db: GrampsDbBase
    @param event: source Event object that will be copied with
    privacy records removed
    @type event: Event
    @returns: 'cleansed' Event object
    @rtype: Event
    """
    new_event = Event()
    
    new_event.set_type(event.get_type())
    new_event.set_description(event.get_description())
    new_event.set_gramps_id(event.get_gramps_id())
    new_event.set_handle(event.get_handle())
    new_event.set_date_object(event.get_date_object())
    new_event.set_marker(event.get_marker())

    copy_source_ref_list(db,event,new_event)
    copy_notes(db,event,new_event)
    copy_media_ref_list(db,event,new_event)
    copy_attributes(db,event,new_event)
    
    place_handle = event.get_place_handle()
    place = db.get_place_from_handle(place_handle)
    if place and place.get_privacy() == False:
        new_event.set_place_handle(place_handle)
    
    return new_event
            
def sanitize_family(db,family):
    """
    Creates a new Family instance based off the passed Family
    instance. The returned instance has all private records
    removed from it.
    
    @param db: GRAMPS database to which the Person object belongs
    @type db: GrampsDbBase
    @param family: source Family object that will be copied with
    privacy records removed
    @type family: Family
    @returns: 'cleansed' Family object
    @rtype: Family
    """
    new_family = Family()
    
    new_family.set_gramps_id(family.get_gramps_id())
    new_family.set_handle(family.get_handle())
    new_family.set_marker(family.get_marker())    
    new_family.set_relationship(family.get_relationship())
    
    # Copy the father handle.
    father_handle = family.get_father_handle()
    if father_handle:
        father = db.get_person_from_handle(father_handle)
        if father.get_privacy() == False:
            new_family.set_father_handle(father_handle)

    # Copy the mother handle.
    mother_handle = family.get_mother_handle()
    if mother_handle:
        mother = db.get_person_from_handle(mother_handle)
        if mother.get_privacy() == False:
            new_family.set_mother_handle(mother_handle)
        
    # Copy child references.
    for child_ref in family.get_child_ref_list():
        if child_ref.get_privacy() == True:
            continue
        child_handle = child_ref.get_reference_handle()
        child = db.get_person_from_handle(child_handle)
        if child.get_privacy() == True:
            continue
        # Copy this reference
        new_ref = ChildRef()
        new_ref.set_reference_handle(child_ref.get_reference_handle())
        new_ref.set_father_relation(child_ref.get_father_relation())
        new_ref.set_mother_relation(child_ref.get_mother_relation())
        copy_notes(db,child_ref,new_ref)
        copy_source_ref_list(db,child_ref,new_ref)
        new_family.add_child_ref(new_ref)
        
    # Copy event ref list.
    for event_ref in family.get_event_ref_list():
        if event_ref and event_ref.get_privacy() == False:
            event = db.get_event_from_handle(event_ref.ref)
            if not event.get_privacy():
                new_family.add_event_ref(sanitize_event_ref(db,event_ref))

    copy_source_ref_list(db,family,new_family)
    copy_notes(db,family,new_family)
    copy_media_ref_list(db,family,new_family)
    copy_attributes(db,family,new_family)
    copy_lds_ords(db,family,new_family)
    
    return new_family

def sanitize_repository(db,repository):
    """
    Creates a new Repository instance based off the passed Repository
    instance. The returned instance has all private records
    removed from it.
    
    @param db: GRAMPS database to which the Person object belongs
    @type db: GrampsDbBase
    @param repository: source Repsitory object that will be copied with
    privacy records removed
    @type repository: Repository
    @returns: 'cleansed' Repository object
    @rtype: Repository
    """
    new_repository = Repository()
    
    new_repository.set_type(repository.get_type())
    new_repository.set_name(repository.get_name())
    new_repository.set_gramps_id(repository.get_gramps_id())
    new_repository.set_handle(repository.get_handle())
    new_repository.set_marker(repository.get_marker())

    copy_notes(db,repository,new_repository)
    copy_addresses(db,repository,new_repository)
    copy_urls(db,repository,new_repository)
    
    return new_repository