# # Gramps - a GTK+/GNOME based genealogy program # # Copyright (C) 2000-2006 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 # # $Id$ """ Event object for GRAMPS """ #------------------------------------------------------------------------- # # standard python modules # #------------------------------------------------------------------------- from warnings import warn #------------------------------------------------------------------------- # # GRAMPS modules # #------------------------------------------------------------------------- from _PrimaryObject import PrimaryObject from _SourceBase import SourceBase from _NoteBase import NoteBase from _MediaBase import MediaBase from _DateBase import DateBase from _PlaceBase import PlaceBase from _EventType import EventType #------------------------------------------------------------------------- # # Event class # #------------------------------------------------------------------------- class Event(PrimaryObject,SourceBase,NoteBase,MediaBase,DateBase,PlaceBase): """ Introduction ============ The Event record is used to store information about some type of action that occurred at a particular place at a particular time, such as a birth, death, or marriage. """ def __init__(self,source=None): """ Creates a new Event instance, copying from the source if present @param source: An event used to initialize the new event @type source: Event """ PrimaryObject.__init__(self,source) SourceBase.__init__(self,source) NoteBase.__init__(self,source) MediaBase.__init__(self,source) DateBase.__init__(self,source) PlaceBase.__init__(self,source) if source: self.description = source.description self.type = source.type self.cause = source.cause else: self.description = "" self.type = EventType() self.cause = "" def serialize(self): """ Converts the data held in the event to a Python tuple that represents all the data elements. This method is used to convert the object into a form that can easily be saved to a database. These elements may be primative Python types (string, integers), complex Python types (lists or tuples, or Python objects. If the target database cannot handle complex types (such as objectes or lists), the database is responsible for converting the data into a form that it can use. @returns: Returns a python tuple containing the data that should be considered persistent. @rtype: tuple """ return (self.handle, self.gramps_id, self.type.serialize(), DateBase.serialize(self), self.description, self.place, self.cause, SourceBase.serialize(self), NoteBase.serialize(self), MediaBase.serialize(self), self.change, self.marker, self.private) def unserialize(self,data): """ Converts the data held in a tuple created by the serialize method back into the data in an Event structure. @param data: tuple containing the persistent data associated the Person object @type data: tuple """ (self.handle, self.gramps_id, the_type, date, self.description, self.place, self.cause, source_list, note, media_list, self.change, self.marker, self.private) = data self.type.unserialize(the_type) DateBase.unserialize(self,date) MediaBase.unserialize(self,media_list) SourceBase.unserialize(self,source_list) NoteBase.unserialize(self,note) def _has_handle_reference(self,classname,handle): if classname == 'Place': return self.place == handle return False def _remove_handle_references(self,classname,handle_list): if classname == 'Place' and self.place in handle_list: self.place = "" def _replace_handle_reference(self,classname,old_handle,new_handle): if classname == 'Place' and self.place == old_handle: self.place = new_handle def get_text_data_list(self): """ Returns the list of all textual attributes of the object. @return: Returns the list of all textual attributes of the object. @rtype: list """ return [self.description,str(self.type),self.cause,self.gramps_id] #return [self.description,self.type[1],self.cause, # self.get_date(),self.gramps_id] def get_text_data_child_list(self): """ Returns the list of child objects that may carry textual data. @return: Returns the list of child objects that may carry textual data. @rtype: list """ check_list = self.media_list + self.source_list if self.note: check_list.append(self.note) return check_list def get_sourcref_child_list(self): """ Returns the list of child secondary objects that may refer sources. @return: Returns the list of child secondary child objects that may refer sources. @rtype: list """ return self.media_list def get_referenced_handles(self): """ Returns the list of (classname,handle) tuples for all directly referenced primary objects. @return: Returns the list of (classname,handle) tuples for referenced objects. @rtype: list """ ret = [] if self.place: ret.append(('Place',self.place)) return ret def get_handle_referents(self): """ Returns the list of child objects which may, directly or through their children, reference primary objects.. @return: Returns the list of objects refereincing primary objects. @rtype: list """ return self.media_list + self.source_list def is_empty(self): """ Returns True if the Event is an empty object (no values set). @returns: True if the Event is empty @rtype: bool """ date = self.get_date_object() place = self.get_place_handle() description = self.description cause = self.cause the_type = self.type return (the_type == EventType.CUSTOM and date.is_empty() and not place and not description and not cause) def are_equal(self,other): """ Returns True if the passed Event is equivalent to the current Event. @param other: Event to compare against @type other: Event @returns: True if the Events are equal @rtype: bool """ if other == None: other = Event (None) if self.type != other.type or \ ((self.place or other.place) and (self.place != other.place)) or \ self.description != other.description or self.cause != other.cause \ or self.private != other.private or \ (not self.get_date_object().is_equal(other.get_date_object())) or \ len(self.get_source_references()) != len(other.get_source_references()): return False index = 0 olist = other.get_source_references() for a in self.get_source_references(): if not a.are_equal(olist[index]): return False index += 1 return True def set_type(self,the_type): """ Sets the type of the Event to the passed (int,str) tuple. @param the_type: Type to assign to the Event @type the_type: tuple """ if type(the_type) == tuple: self.type = EventType(the_type) else: self.type = the_type def get_type(self): """ Returns the type of the Event. @return: Type of the Event @rtype: tuple """ return self.type def set_cause(self,cause): """ Sets the cause of the Event to the passed string. The string may contain any information. @param cause: Cause to assign to the Event @type cause: str """ self.cause = cause def get_cause(self): """ Returns the cause of the Event. @return: Returns the cause of the Event @rtype: str """ return self.cause def set_description(self,description): """ Sets the description of the Event to the passed string. The string may contain any information. @param description: Description to assign to the Event @type description: str """ self.description = description def get_description(self) : """ Returns the description of the Event. @return: Returns the description of the Event @rtype: str """ return self.description