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d09e2cdb5d
gramps/gramps2/src/GrampsDbBase.py
Don Allingham 003912f326 * src/DisplayModels.py: Added ChildModel to handle the 
child list in the Family View
* src/gramps_main.py: add column editor for Family View
* src/GrampsDbBase.py: add storing/retrieving child column order
* src/FamilyView.py: use new ChildModel
* src/PlaceView.py: removed unused index


svn: r3735
2004-11-18 20:21:06 +00:00

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#
# Gramps - a GTK+/GNOME based genealogy program
#
# Copyright (C) 2000-2004 Donald N. Allingham
#
# 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
#
# $Id$
"""
Base class for the GRAMPS databases. All database interfaces should inherit
from this class.
"""
#-------------------------------------------------------------------------
#
# libraries
#
#-------------------------------------------------------------------------
from RelLib import *
import cPickle
import time
import locale
import re
from gettext import gettext as _
import GrampsGconfKeys
import Utils
#-------------------------------------------------------------------------
#
# constants
#
#-------------------------------------------------------------------------
_UNDO_SIZE = 1000
_id_reg = re.compile("%\d+d")
PERSON_KEY = 0
FAMILY_KEY = 1
SOURCE_KEY = 2
EVENT_KEY = 3
MEDIA_KEY = 4
PLACE_KEY = 5
class GrampsDbBase:
"""
GRAMPS database object. This object is a base class for all
database interfaces.
"""
def __init__(self):
"""
Creates a new GrampsDbBase instance. A new GrampDbBase class should
never be directly created. Only classes derived from this class should
be created.
"""
self.smap_index = 0
self.emap_index = 0
self.pmap_index = 0
self.fmap_index = 0
self.lmap_index = 0
self.omap_index = 0
self.set_person_id_prefix(GrampsGconfKeys.get_person_id_prefix())
self.set_object_id_prefix(GrampsGconfKeys.get_object_id_prefix())
self.set_family_id_prefix(GrampsGconfKeys.get_family_id_prefix())
self.set_source_id_prefix(GrampsGconfKeys.get_source_id_prefix())
self.set_place_id_prefix(GrampsGconfKeys.get_place_id_prefix())
self.set_event_id_prefix(GrampsGconfKeys.get_event_id_prefix())
self.open = 0
self.genderStats = GenderStats()
self.undodb = None
self.id_trans = None
self.fid_trans = None
self.pid_trans = None
self.sid_trans = None
self.oid_trans = None
self.env = None
self.person_map = None
self.family_map = None
self.place_map = None
self.source_map = None
self.media_map = None
self.event_map = None
self.eventnames = None
self.metadata = None
self.name_group = None
self.undo_callback = None
self.redo_callback = None
self.modified = 0
self.undoindex = -1
self.translist = [None] * _UNDO_SIZE
self.default = None
self.owner = Researcher()
self.bookmarks = []
self.path = ""
self.place2title = {}
self.name_groups = {}
def load(self,name,callback):
"""
Opens the specified database. The method needs to be overridden
in the derived class.
"""
assert False, "Needs to be overridden in the derived class"
def close(self):
"""
Closes the specified database. The method needs to be overridden
in the derived class.
"""
assert False, "Needs to be overridden in the derived class"
def abort_changes(self):
pass
def is_open(self):
"""
Returns 1 if the database has been opened.
"""
return self.person_map != None
def commit_person(self,person,transaction,change_time=None):
"""
Commits the specified Person to the database, storing the changes
as part of the transaction.
"""
if change_time:
person.change = int(change_time)
else:
person.change = int(time.time())
handle = str(person.get_handle())
if transaction != None:
old_data = self.person_map.get(handle)
transaction.add(PERSON_KEY,handle,old_data)
self.person_map[handle] = person.serialize()
def commit_media_object(self,obj,transaction,change_time=None):
"""
Commits the specified MediaObject to the database, storing the changes
as part of the transaction.
"""
if change_time:
obj.change = int(change_time)
else:
obj.change = int(time.time())
handle = str(obj.get_handle())
if transaction != None:
old_data = self.media_map.get(handle)
transaction.add(MEDIA_KEY,handle,old_data)
self.media_map[handle] = obj.serialize()
def commit_source(self,source,transaction,change_time=None):
"""
Commits the specified Source to the database, storing the changes
as part of the transaction.
"""
if change_time:
source.change = int(change_time)
else:
source.change = int(time.time())
handle = str(source.get_handle())
if transaction != None:
old_data = self.source_map.get(handle)
transaction.add(SOURCE_KEY,handle,old_data)
self.source_map[handle] = source.serialize()
def commit_place(self,place,transaction,change_time=None):
"""
Commits the specified Place to the database, storing the changes
as part of the transaction.
"""
if change_time:
place.change = int(change_time)
else:
place.change = int(time.time())
handle = str(place.get_handle())
if transaction != None:
old_data = self.place_map.get(handle)
transaction.add(PLACE_KEY,handle,old_data)
self.place_map[handle] = place.serialize()
def commit_event(self,event,transaction,change_time=None):
"""
Commits the specified Event to the database, storing the changes
as part of the transaction.
"""
if change_time:
event.change = int(change_time)
else:
event.change = int(time.time())
handle = str(event.get_handle())
if transaction != None:
old_data = self.event_map.get(handle)
transaction.add(EVENT_KEY,handle,old_data)
self.event_map[handle] = event.serialize()
def commit_family(self,family,transaction,change_time=None):
"""
Commits the specified Family to the database, storing the changes
as part of the transaction.
"""
if change_time:
family.change = int(change_time)
else:
family.change = int(time.time())
handle = str(family.get_handle())
if transaction != None:
old_data = self.family_map.get(handle)
transaction.add(FAMILY_KEY,handle,old_data)
self.family_map[handle] = family.serialize()
def find_next_person_gramps_id(self):
"""
Returns the next available GRAMPS' ID for a Person object based
off the person ID prefix.
"""
index = self.iprefix % self.pmap_index
while self.id_trans.get(str(index)):
self.pmap_index += 1
index = self.iprefix % self.pmap_index
self.pmap_index += 1
return index
def find_next_place_gramps_id(self):
"""
Returns the next available GRAMPS' ID for a Place object based
off the person ID prefix.
"""
index = self.pprefix % self.lmap_index
while self.pid_trans.get(str(index)):
self.lmap_index += 1
index = self.pprefix % self.lmap_index
self.lmap_index += 1
return index
def find_next_event_gramps_id(self):
"""
Returns the next available GRAMPS' ID for a Event object based
off the person ID prefix.
"""
index = self.eprefix % self.emap_index
self.emap_index += 1
return index
def find_next_object_gramps_id(self):
"""
Returns the next available GRAMPS' ID for a MediaObject object based
off the person ID prefix.
"""
index = self.oprefix % self.omap_index
while self.oid_trans.get(str(index)):
self.omap_index += 1
index = self.oprefix % self.omap_index
self.omap_index += 1
return index
def find_next_source_gramps_id(self):
"""
Returns the next available GRAMPS' ID for a Source object based
off the person ID prefix.
"""
index = self.sprefix % self.smap_index
while self.sid_trans.get(str(index)):
self.smap_index += 1
index = self.sprefix % self.smap_index
self.smap_index += 1
return index
def find_next_family_gramps_id(self):
"""
Returns the next available GRAMPS' ID for a Family object based
off the person ID prefix.
"""
index = self.fprefix % self.fmap_index
while self.fid_trans.get(str(index)):
self.fmap_index += 1
index = self.fprefix % self.fmap_index
self.fmap_index += 1
return index
def get_person_from_handle(self,val):
"""finds a Person in the database from the passed gramps' ID.
If no such Person exists, None is returned."""
data = self.person_map.get(str(val))
if data:
person = Person()
person.unserialize(data)
return person
return None
def get_source_from_handle(self,val):
"""finds a Source in the database from the passed gramps' ID.
If no such Source exists, None is returned."""
data = self.source_map.get(str(val))
if data:
source = Source()
source.unserialize(data)
return 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."""
data = self.media_map.get(str(handle))
if data:
mobject = MediaObject()
mobject.unserialize(data)
return mobject
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."""
data = self.place_map.get(str(handle))
if data:
place = Place()
place.unserialize(data)
return 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."""
data = self.event_map.get(str(handle))
if data:
event = Event()
event.unserialize(data)
return 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."""
data = self.family_map.get(str(handle))
if data:
family = Family()
family.unserialize(data)
return family
return None
def find_person_from_handle(self,val,transaction):
"""
Finds a Person in the database from the passed GRAMPS ID.
If no such Person exists, a new Person is added to the database.
"""
person = Person()
data = self.person_map.get(str(val))
if data:
person.unserialize(data)
else:
person.set_handle(val)
if transaction != None:
transaction.add(PERSON_KEY, val, None)
self.person_map[str(val)] = person.serialize()
self.genderStats.count_person (person, self)
return person
def find_source_from_handle(self,val,transaction):
"""
Finds a Source in the database from the passed GRAMPS ID.
If no such Source exists, a new Source is added to the database.
"""
source = Source()
if self.source_map.get(str(val)):
source.unserialize(self.source_map.get(str(val)))
else:
source.set_handle(val)
self.add_source(source,transaction)
return source
def find_event_from_handle(self,val,transaction):
"""
Finds a Event in the database from the passed GRAMPS ID.
If no such Event exists, a new Event is added to the database.
"""
event = Event()
data = self.event_map.get(str(val))
if data:
event.unserialize(data)
else:
event.set_handle(val)
self.add_event(event,transaction)
return event
def find_object_from_handle(self,handle,transaction):
"""
Finds an MediaObject in the database from the passed GRAMPS ID.
If no such MediaObject exists, a new Object is added to the database."""
obj = MediaObject()
if self.media_map.get(str(handle)):
obj.unserialize(self.media_map.get(str(handle)))
else:
obj.set_handle(handle)
self.add_object(obj,transaction)
return obj
def find_place_from_handle(self,handle,transaction):
"""
Finds a Place in the database from the passed GRAMPS ID.
If no such Place exists, a new Place is added to the database.
"""
place = Place()
if self.place_map.get(str(handle)):
place.unserialize(self.place_map.get(str(handle)))
else:
place.set_handle(handle)
self.add_place(place,transaction)
return place
def find_family_from_handle(self,val,transaction):
"""finds a Family in the database from the passed gramps' ID.
If no such Family exists, a new Family is added to the database."""
family = Family()
if self.family_map.get(str(val)):
family.unserialize(self.family_map.get(str(val)))
else:
family.set_handle(val)
self.add_family(family,transaction)
return family
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.
Needs to be overridden by the derrived class.
"""
assert False, "Needs to be overridden in the derived class"
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.
Needs to be overridden by the derrived class.
"""
assert False, "Needs to be overridden in the derived class"
def get_place_from_gramps_id(self,val):
"""finds a Place in the database from the passed gramps' ID.
If no such Place exists, a new Person is added to the database.
Needs to be overridden by the derrived class.
"""
assert False, "Needs to be overridden in the derived class"
def get_source_from_gramps_id(self,val):
"""finds a Source in the database from the passed gramps' ID.
If no such Source exists, a new Person is added to the database.
Needs to be overridden by the derrived class.
"""
assert False, "Needs to be overridden in the derived class"
def get_object_from_gramps_id(self,val):
"""finds a MediaObject in the database from the passed gramps' ID.
If no such MediaObject exists, a new Person is added to the database.
Needs to be overridden by the derrived class.
"""
assert False, "Needs to be overridden in the derived class"
def add_person(self,person,transaction):
"""
Adds a Person to the database, assigning internal IDs if they have
not already been defined.
"""
if not person.get_gramps_id():
person.set_gramps_id(self.find_next_person_gramps_id())
if not person.get_handle():
person.set_handle(Utils.create_id())
self.commit_person(person,transaction)
self.genderStats.count_person (person, self)
return person.get_handle()
def add_family(self,family,transaction):
"""
Adds a Family to the database, assigning internal IDs if they have
not already been defined.
"""
if family.get_gramps_id() == None:
family.set_gramps_id(self.find_next_family_gramps_id())
if family.get_handle() == None:
family.set_handle(Utils.create_id())
self.commit_family(family,transaction)
return family.get_handle()
def add_source(self,source,transaction):
"""
Adds a Source to the database, assigning internal IDs if they have
not already been defined.
"""
if source.get_handle() == None:
source.set_handle(Utils.create_id())
if source.get_gramps_id() == None:
source.set_gramps_id(self.find_next_source_gramps_id())
self.commit_source(source,transaction)
return source.get_handle()
def add_event(self,event,transaction):
"""
Adds an Event to the database, assigning internal IDs if they have
not already been defined.
"""
if event.get_handle() == None:
event.set_handle(Utils.create_id())
if event.get_gramps_id() == None:
event.set_gramps_id(self.find_next_event_gramps_id())
self.commit_event(event,transaction)
return event.get_handle()
def add_place(self,place,transaction):
"""
Adds a Place to the database, assigning internal IDs if they have
not already been defined.
"""
if place.get_handle() == None:
index = Utils.create_id()
place.set_handle(index)
if place.get_gramps_id() == None:
place.set_gramps_id(self.find_next_place_gramps_id())
self.commit_place(place,transaction)
return place.get_handle()
def add_object(self,obj,transaction):
"""
Adds a MediaObject to the database, assigning internal IDs if they have
not already been defined.
"""
index = obj.get_handle()
if index == None:
index = Utils.create_id()
obj.set_handle(index)
if obj.get_gramps_id() == None:
obj.set_gramps_id(self.find_next_object_gramps_id())
self.commit_media_object(obj,transaction)
return index
def get_name_group_mapping(self,name):
"""
Returns the default grouping name for a surname
"""
return self.name_group.get(str(name),name)
def get_name_group_keys(self):
"""
Returns the defined names that have been assigned to a default grouping
"""
return [unicode(k) for k in self.name_group.keys()]
def set_name_group_mapping(self,name,group):
"""
Sets the default grouping name for a surname. Needs to be overridden in the
derived class.
"""
assert False, "Needs to be overridden in the derived class"
def get_people_view_maps(self):
"""
Allows the saving people display data into the database metadata.
This allows faster display of the treeview.
"""
if self.metadata:
return (self.metadata.get('tp_path'),
self.metadata.get('p_iter'),
self.metadata.get('p_path'),
self.metadata.get('sname'))
else:
return (None,None,None,None)
def set_people_view_maps(self,maps):
"""
Allows the retreiving people display data into the database metadata.
This allows faster display of the treeview.
"""
if self.metadata:
self.metadata['tp_path'] = maps[0]
self.metadata['p_iter'] = maps[1]
self.metadata['p_path'] = maps[2]
self.metadata['sname'] = maps[3]
def get_number_of_people(self):
"""
Returns the number of people currently in the databse.
"""
return len(self.person_map)
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
"""
if self.person_map:
handle_list = self.person_map.keys()
if sort_handles:
handle_list.sort(self._sortbyname)
return handle_list
return []
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.
"""
if self.place_map:
handle_list = self.place_map.keys()
if sort_handles:
handle_list.sort(self._sortbyplace)
return handle_list
return []
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.
"""
if self.source_map:
handle_list = self.source_map.keys()
if sort_handles:
handle_list.sort(self._sortbysource)
return handle_list
return []
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.
"""
if self.media_map:
handle_list = self.media_map.keys()
if sort_handles:
handle_list.sort(self._sortbymedia)
return handle_list
return []
def get_event_handles(self):
"""
Returns a list of database handles, one handle for each Event in
the database.
"""
if self.event_map:
return self.event_map.keys()
return []
def get_family_handles(self):
"""
Returns a list of database handles, one handle for each Family in
the database.
"""
if self.family_map:
return self.family_map.keys()
return []
def set_person_id_prefix(self,val):
"""
Sets the naming template for GRAMPS Person ID values. The string is expected
to be in the form of a simple text string, or in a format that contains
a C/Python style format string using %d, such as I%d or I%04d.
"""
if val:
if _id_reg.search(val):
self.iprefix = val
else:
self.iprefix = val + "%d"
else:
self.iprefix = "I%04d"
def set_source_id_prefix(self,val):
"""
Sets the naming template for GRAMPS Source ID values. The string is expected
to be in the form of a simple text string, or in a format that contains
a C/Python style format string using %d, such as S%d or S%04d.
"""
if val:
if _id_reg.search(val):
self.sprefix = val
else:
self.sprefix = val + "%d"
else:
self.sprefix = "S%04d"
def set_object_id_prefix(self,val):
"""
Sets the naming template for GRAMPS MediaObject ID values. The string is expected
to be in the form of a simple text string, or in a format that contains
a C/Python style format string using %d, such as O%d or O%04d.
"""
if val:
if _id_reg.search(val):
self.oprefix = val
else:
self.oprefix = val + "%d"
else:
self.oprefix = "O%04d"
def set_place_id_prefix(self,val):
"""
Sets the naming template for GRAMPS Place ID values. The string is expected
to be in the form of a simple text string, or in a format that contains
a C/Python style format string using %d, such as P%d or P%04d.
"""
if val:
if _id_reg.search(val):
self.pprefix = val
else:
self.pprefix = val + "%d"
else:
self.pprefix = "P%04d"
def set_family_id_prefix(self,val):
"""
Sets the naming template for GRAMPS Family ID values. The string is expected
to be in the form of a simple text string, or in a format that contains
a C/Python style format string using %d, such as F%d or F%04d.
"""
if val:
if _id_reg.search(val):
self.fprefix = val
else:
self.fprefix = val + "%d"
else:
self.fprefix = "F%04d"
def set_event_id_prefix(self,val):
"""
Sets the naming template for GRAMPS Event ID values. The string is expected
to be in the form of a simple text string, or in a format that contains
a C/Python style format string using %d, such as E%d or E%04d.
"""
if val:
if _id_reg.search(val):
self.eprefix = val
else:
self.eprefix = val + "%d"
else:
self.eprefix = "E%04d"
def transaction_begin(self,msg=""):
"""
Creates a new Transaction tied to the current UNDO database. The transaction
has no effect until it is committed using the transaction_commit function of
the this database object.
"""
return Transaction(msg,self.undodb)
def transaction_commit(self,transaction,msg):
"""
Commits the transaction to the assocated UNDO database.
"""
if not len(transaction):
return
transaction.set_description(msg)
self.undoindex += 1
if self.undoindex == _UNDO_SIZE:
self.translist = transaction[0:-1] + [ transaction ]
else:
self.translist[self.undoindex] = transaction
if self.undo_callback:
self.undo_callback(_("_Undo %s") % transaction.get_description())
def undo(self):
"""
Accesses the last committed transaction, and reverts the data to
the state before the transaction was committed.
"""
if self.undoindex == -1:
return False
transaction = self.translist[self.undoindex]
self.undoindex -= 1
subitems = transaction.get_recnos()
subitems.reverse()
for record_id in subitems:
(key, handle, data) = transaction.get_record(record_id)
if key == PERSON_KEY:
if data == None:
del self.person_map[str(handle)]
else:
self.person_map[str(handle)] = data
elif key == FAMILY_KEY:
if data == None:
del self.family_map[str(handle)]
else:
self.family_map[str(handle)] = data
elif key == SOURCE_KEY:
if data == None:
del self.source_map[str(handle)]
else:
self.source_map[str(handle)] = data
elif key == EVENT_KEY:
if data == None:
del self.event_map[str(handle)]
else:
self.event_map[str(handle)] = data
elif key == PLACE_KEY:
if data == None:
del self.place_map[str(handle)]
else:
self.place_map[str(handle)] = data
elif key == MEDIA_KEY:
if data == None:
del self.media_map[str(handle)]
else:
self.media_map[str(handle)] = data
if self.undo_callback:
if self.undoindex == -1:
self.undo_callback(None)
else:
transaction = self.translist[self.undoindex]
self.undo_callback(_("_Undo %s") % transaction.get_description())
return True
def set_undo_callback(self,callback):
"""
Defines the callback function that is called whenever an undo operation
is executed. The callback function recieves a single argument that is a
text string that defines the operation.
"""
self.undo_callback = callback
def set_redo_callback(self,callback):
"""
Defines the callback function that is called whenever an redo operation
is executed. The callback function recieves a single argument that is a
text string that defines the operation.
"""
self.redo_callback = callback
def get_surname_list(self):
"""
Returns the list of surnames contained within the database.
The function must be overridden in the derived class.
"""
assert False, "Needs to be overridden in the derived class"
def get_person_event_type_list(self):
"""
Returns the list of personal event types contained within the
database. The function must be overridden in the derived class.
"""
assert False, "Needs to be overridden in the derived class"
def get_bookmarks(self):
"""returns the list of Person handles in the bookmarks"""
return self.bookmarks
def set_researcher(self,owner):
"""sets the information about the owner of the database"""
self.owner.set(owner.get_name(),owner.get_address(),owner.get_city(),
owner.get_state(),owner.get_country(),
owner.get_postal_code(),owner.get_phone(),owner.get_email())
def get_researcher(self):
"""returns the Researcher instance, providing information about
the owner of the database"""
return self.owner
def set_default_person_handle(self,handle):
"""sets the default Person to the passed instance"""
self.metadata['default'] = handle
def get_default_person(self):
"""returns the default Person of the database"""
if self.metadata and self.metadata.has_key('default'):
person = Person()
handle = self.metadata['default']
data = self.person_map.get(str(handle))
person.unserialize(data)
return person
return None
def get_save_path(self):
"""returns the save path of the file, or "" if one does not exist"""
return self.path
def set_save_path(self,path):
"""sets the save path for the database"""
self.path = path
def get_person_event_types(self):
"""returns a list of all Event types assocated with Person
instances in the database"""
return []
def get_person_attribute_types(self):
"""returns a list of all Attribute types assocated with Person
instances in the database"""
return []
def get_family_attribute_types(self):
"""returns a list of all Attribute types assocated with Family
instances in the database"""
return []
def get_family_event_types(self):
"""returns a list of all Event types assocated with Family
instances in the database"""
return []
def get_media_attribute_types(self):
"""returns a list of all Attribute types assocated with Media
instances in the database"""
return []
def get_family_relation_types(self):
"""returns a list of all relationship types assocated with Family
instances in the database"""
return []
def remove_person(self,handle,transaction):
"""
Removes the Person specified by the database handle from the
database, preserving the change in the passed transaction. This
method must be overridden in the derived class.
"""
assert False, "Needs to be overridden in the derived class"
def remove_source(self,handle,transaction):
"""
Removes the Source specified by the database handle from the
database, preserving the change in the passed transaction. This
method must be overridden in the derived class.
"""
assert False, "Needs to be overridden in the derived class"
def remove_event(self,handle,transaction):
"""
Removes the Event specified by the database handle from the
database, preserving the change in the passed transaction. This
method must be overridden in the derived class.
"""
assert False, "Needs to be overridden in the derived class"
def remove_object(self,handle,transaction):
"""
Removes the MediaObjectPerson specified by the database handle from the
database, preserving the change in the passed transaction. This
method must be overridden in the derived class.
"""
assert False, "Needs to be overridden in the derived class"
def remove_place(self,handle,transaction):
"""
Removes the Place specified by the database handle from the
database, preserving the change in the passed transaction. This
method must be overridden in the derived class.
"""
assert False, "Needs to be overridden in the derived class"
def has_person_handle(self,handle):
"""
returns True if the handle exists in the current Person database.
"""
return self.person_map.has_key(str(handle))
def has_family_handle(self,handle):
"""
returns True if the handle exists in the current Family database.
"""
return self.family_map.has_key(str(handle))
def has_object_handle(self,handle):
"""
returns True if the handle exists in the current MediaObjectdatabase.
"""
return self.media_map.has_key(str(handle)) != None
def _sortbyname(self,f,s):
n1 = self.person_map.get(str(f))[3].sname
n2 = self.person_map.get(str(s))[3].sname
return locale.strcoll(n1,n2)
def _sortbyplace(self,f,s):
return locale.strcoll(self.place_map.get(str(f))[2],
self.place_map.get(str(s))[2])
def _sortbysource(self,f,s):
fp = self.source_map[str(f)][2]
sp = self.source_map[str(s)][2]
return locale.strcoll(fp,sp)
def _sortbymedia(self,f,s):
fp = self.media_map[str(f)][4]
sp = self.media_map[str(s)][4]
return locale.strcoll(fp,sp)
def set_person_column_order(self,list):
"""
Stores the Person display common information in the
database's metadata.
"""
if self.metadata != None:
self.metadata['columns'] = list
def set_child_column_order(self,list):
"""
Stores the Person display common information in the
database's metadata.
"""
if self.metadata != None:
self.metadata['child_columns'] = list
def set_place_column_order(self,list):
"""
Stores the Place display common information in the
database's metadata.
"""
if self.metadata != None:
self.metadata['place_columns'] = list
def set_source_column_order(self,list):
"""
Stores the Source display common information in the
database's metadata.
"""
if self.metadata != None:
self.metadata['source_columns'] = list
def set_media_column_order(self,list):
"""
Stores the Media display common information in the
database's metadata.
"""
if self.metadata != None:
self.metadata['media_columns'] = list
def get_person_column_order(self):
"""
Returns the Person display common information stored in the
database's metadata.
"""
default = [(1,1),(1,2),(1,3),(0,4),(1,5),(0,6),(0,7),(0,8)]
if self.metadata == None:
return default
else:
cols = self.metadata.get('columns',default)
if len(cols) != len(default):
return cols + default[len(cols):]
else:
return cols
def get_child_column_order(self):
"""
Returns the Person display common information stored in the
database's metadata.
"""
default = [(1,0),(1,1),(1,2),(1,3),(1,4),(1,5),(0,6),(0,7)]
if self.metadata == None:
return default
else:
cols = self.metadata.get('child_columns',default)
if len(cols) != len(default):
return cols + default[len(cols):]
else:
return cols
def get_place_column_order(self):
"""
Returns the Place display common information stored in the
database's metadata.
"""
default = [(1,1),(1,2),(0,3),(1,4),(0,5),(1,6),(0,7),(0,8),(0,9)]
if self.metadata == None:
return default
else:
cols = self.metadata.get('place_columns',default)
if len(cols) != len(default):
return cols + default[len(cols):]
else:
return cols
def get_source_column_order(self):
"""
Returns the Source display common information stored in the
database's metadata.
"""
default = [(1,1),(1,2),(1,3),(0,4),(0,5)]
if self.metadata == None:
return default
else:
cols = self.metadata.get('source_columns',default)
if len(cols) != len(default):
return cols + default[len(cols):]
else:
return cols
def get_media_column_order(self):
"""
Returns the MediaObject display common information stored in the
database's metadata.
"""
default = [(1,1),(1,2),(1,3),(0,4)]
if self.metadata == None:
return default
else:
cols = self.metadata.get('media_columns',default)
if len(cols) != len(default):
return cols + default[len(cols):]
else:
return cols
def get_thumbnail_image(self,handle):
return None
def set_thumbnail_image(self,handle,path):
pass
class Transaction:
"""
Defines a group of database commits that define a single logical
operation.
"""
def __init__(self,msg,db):
"""
Creates a new transaction. A Transaction instance should not be created
directly, but by the GrampsDbBase class or classes derived from
GrampsDbBase. The db parameter is a list-like interface that stores
the commit data. This could be a simple list, or a RECNO-style database
object.
"""
self.db = db
self.first = None
self.last = None
def get_description(self):
"""
Returns the text string that describes the logical operation
performed by the Transaction.
"""
return self.msg
def set_description(self,msg):
"""
Sets the text string that describes the logical operation
performed by the Transaction.
"""
self.msg = msg
def add(self, type, handle, data):
"""
Adds a commit operation to the Transaction. The type is a constant
that indicates what type of PrimaryObject is being added. The handle
is the object's database handle, and the data is the tuple returned
by the object's serialize method.
"""
self.last = self.db.append(cPickle.dumps((type,handle,data),1))
if self.first == None:
self.first = self.last
def get_recnos(self):
"""
Returns a list of record numbers associated with the transaction.
While the list is an arbitrary index of integers, it can be used
to indicate record numbers for a database.
"""
return range (self.first, self.last+1)
def get_record(self,recno):
"""
Returns a tuple representing the PrimaryObject type, database handle
for the PrimaryObject, and a tuple representing the data created by
the object's serialize method.
"""
return cPickle.loads(self.db[recno])
def __len__(self):
"""
Returns the number of commits associated with the Transaction.
"""
if self.last and self.first:
return self.last - self.first + 1
return 0
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