gramps/gramps/gen/lib/attribute.py
2017-07-17 16:13:12 +01:00

278 lines
8.9 KiB
Python

#
# Gramps - a GTK+/GNOME based genealogy program
#
# Copyright (C) 2000-2007 Donald N. Allingham
# Copyright (C) 2010 Michiel D. Nauta
# Copyright (C) 2011 Tim G L Lyons
# Copyright (C) 2017 Nick Hall
#
# 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
"""
Attribute class for Gramps.
"""
#-------------------------------------------------------------------------
#
# Gramps modules
#
#-------------------------------------------------------------------------
from .secondaryobj import SecondaryObject
from .privacybase import PrivacyBase
from .citationbase import CitationBase
from .notebase import NoteBase
from .attrtype import AttributeType
from .const import IDENTICAL, EQUAL, DIFFERENT
from ..const import GRAMPS_LOCALE as glocale
_ = glocale.translation.gettext
#-------------------------------------------------------------------------
#
# Root object for Attribute
#
#-------------------------------------------------------------------------
class AttributeRoot(SecondaryObject, PrivacyBase):
"""
Provide a simple key/value pair for describing properties.
Used to store descriptive information.
In GEDCOM only used for Persons:
Individual attributes should describe situations that may be permanent or
temporary (start at some date, end at some date, etc.), may be associated
to a place (a position held, residence, etc.) or may not (eye colour,
height, caste, profession, etc.). They may have sources and notes and
media.
Compare with :class:`~.event.Event`
Gramps at the moment does not support this GEDCOM Attribute structure.
"""
def __init__(self, source=None):
"""
Create a new Attribute object, copying from the source if provided.
"""
PrivacyBase.__init__(self, source)
#type structure depends on inheriting classes
self.type = None
self.value = None
def __str__(self):
return str(self.value)
def serialize(self):
"""
Convert the object to a serialized tuple of data.
"""
return (PrivacyBase.serialize(self),
self.type.serialize(), self.value)
def unserialize(self, data):
"""
Convert a serialized tuple of data to an object.
"""
(privacy, the_type, self.value) = data
PrivacyBase.unserialize(self, privacy)
self.type.unserialize(the_type)
return self
def get_text_data_list(self):
"""
Return the list of all textual attributes of the object.
:returns: Returns the list of all textual attributes of the object.
:rtype: list
"""
return [self.value]
def get_text_data_child_list(self):
"""
Return the list of child objects that may carry textual data.
:returns: Returns the list of child objects that may carry textual data.
:rtype: list
"""
return []
def get_note_child_list(self):
"""
Return the list of child secondary objects that may refer notes.
:returns: Returns the list of child secondary child objects that may
refer notes.
:rtype: list
"""
return []
def get_handle_referents(self):
"""
Return the list of child objects which may, directly or through
their children, reference primary objects.
:returns: Returns the list of objects referencing primary objects.
:rtype: list
"""
return []
def get_referenced_handles(self):
"""
Return the list of (classname, handle) tuples for all directly
referenced primary objects.
:returns: List of (classname, handle) tuples for referenced objects.
:rtype: list
"""
return []
def is_equivalent(self, other):
"""
Return if this attribute is equivalent, that is agrees in type and
value, to other.
:param other: The attribute to compare this one to.
:type other: Attribute
:returns: Constant indicating degree of equivalence.
:rtype: int
"""
if self.type != other.type or self.value != other.value:
return DIFFERENT
else:
if self.is_equal(other):
return IDENTICAL
else:
return EQUAL
def merge(self, acquisition):
"""
Merge the content of acquisition into this attribute.
Lost: type and value of acquisition.
:param acquisition: the attribute to merge with the present attribute.
:type acquisition: Attribute
"""
self._merge_privacy(acquisition)
def set_type(self, val):
"""Set the type (or key) of the Attribute instance."""
self.type.set(val)
def get_type(self):
"""Return the type (or key) or the Attribute instance."""
return self.type
def set_value(self, val):
"""Set the value of the Attribute instance."""
self.value = val
def get_value(self):
"""Return the value of the Attribute instance."""
return self.value
#-------------------------------------------------------------------------
#
# Attribute for Person/Family/Media/MediaRef
#
#-------------------------------------------------------------------------
class Attribute(AttributeRoot, CitationBase, NoteBase):
def __init__(self, source=None):
"""
Create a new Attribute object, copying from the source if provided.
"""
AttributeRoot.__init__(self, source)
CitationBase.__init__(self, source)
NoteBase.__init__(self, source)
if source:
self.type = AttributeType(source.type)
self.value = source.value
else:
self.type = AttributeType()
self.value = ""
def serialize(self):
"""
Convert the object to a serialized tuple of data.
"""
return (PrivacyBase.serialize(self),
CitationBase.serialize(self),
NoteBase.serialize(self),
self.type.serialize(), self.value)
def unserialize(self, data):
"""
Convert a serialized tuple of data to an object.
"""
(privacy, citation_list, note_list, the_type, self.value) = data
PrivacyBase.unserialize(self, privacy)
CitationBase.unserialize(self, citation_list)
NoteBase.unserialize(self, note_list)
self.type.unserialize(the_type)
return self
@classmethod
def get_schema(cls):
"""
Returns the JSON Schema for this class.
:returns: Returns a dict containing the schema.
:rtype: dict
"""
return {
"type": "object",
"title": _("Attribute"),
"properties": {
"_class": {"enum": [cls.__name__]},
"private": {"type": "boolean",
"title": _("Private")},
"citation_list": {"type": "array",
"title": _("Citations"),
"items": {"type": "string",
"maxLength": 50}},
"note_list": {"type": "array",
"items": {"type": "string",
"maxLength": 50},
"title": _("Notes")},
"type": AttributeType.get_schema(),
"value": {"type": "string",
"title": _("Value")}
}
}
def get_referenced_handles(self):
"""
Return the list of (classname, handle) tuples for all directly
referenced primary objects.
:returns: List of (classname, handle) tuples for referenced objects.
:rtype: list
"""
return self.get_referenced_note_handles() + \
self.get_referenced_citation_handles()
def merge(self, acquisition):
"""
Merge the content of acquisition into this attribute.
Lost: type and value of acquisition.
:param acquisition: the attribute to merge with the present attribute.
:type acquisition: Attribute
"""
AttributeRoot.merge(self, acquisition)
self._merge_citation_list(acquisition)
self._merge_note_list(acquisition)