1# 2# Gramps - a GTK+/GNOME based genealogy program 3# 4# Copyright (C) 2002-2006 Donald N. Allingham 5# 6# This program is free software; you can redistribute it and/or modify 7# it under the terms of the GNU General Public License as published by 8# the Free Software Foundation; either version 2 of the License, or 9# (at your option) any later version. 10# 11# This program is distributed in the hope that it will be useful, 12# but WITHOUT ANY WARRANTY; without even the implied warranty of 13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14# GNU General Public License for more details. 15# 16# You should have received a copy of the GNU General Public License 17# along with this program; if not, write to the Free Software 18# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 19# 20 21#------------------------------------------------------------------------- 22# 23# Standard Python modules 24# 25#------------------------------------------------------------------------- 26import logging 27LOG = logging.getLogger(".filter") 28 29#------------------------------------------------------------------------- 30# 31# Gramps modules 32# 33#------------------------------------------------------------------------- 34# we need global variableCustomFilters, so we need to query gramps.gen.filters 35# when we need this variable, not import it at the start! 36import gramps.gen.filters 37from . import Rule 38from ...const import GRAMPS_LOCALE as glocale 39_ = glocale.translation.gettext 40 41#------------------------------------------------------------------------- 42# 43# MatchesFilter 44# 45#------------------------------------------------------------------------- 46class MatchesFilterBase(Rule): 47 """ 48 Rule that checks against another filter. 49 50 This is a base rule for subclassing by specific objects. 51 Subclasses need to define the namespace class attribute. 52 53 """ 54 labels = [_('Filter name:')] 55 name = 'Objects matching the <filter>' 56 description = "Matches objects matched by the specified filter name" 57 category = _('General filters') 58 59 def prepare(self, db, user): 60 if gramps.gen.filters.CustomFilters: 61 filters = gramps.gen.filters.CustomFilters.get_filters_dict(self.namespace) 62 if self.list[0] in filters: 63 filt = filters[self.list[0]] 64 for rule in filt.flist: 65 rule.requestprepare(db, user) 66 else: 67 LOG.warning(_("Can't find filter %s in the defined custom filters") 68 % self.list[0]) 69 else: 70 LOG.warning(_("Can't find filter %s in the defined custom filters") 71 % self.list[0]) 72 73 def reset(self): 74 if gramps.gen.filters.CustomFilters: 75 filters = gramps.gen.filters.CustomFilters.get_filters_dict(self.namespace) 76 if self.list[0] in filters: 77 filt = filters[self.list[0]] 78 for rule in filt.flist: 79 rule.requestreset() 80 81 def apply(self, db, obj): 82 if gramps.gen.filters.CustomFilters: 83 filters = gramps.gen.filters.CustomFilters.get_filters_dict(self.namespace) 84 if self.list[0] in filters: 85 filt = filters[self.list[0]] 86 return filt.check(db, obj.handle) 87 return False 88 89 def find_filter(self): 90 """ 91 Return the selected filter or None. 92 """ 93 if gramps.gen.filters.CustomFilters: 94 filters = gramps.gen.filters.CustomFilters.get_filters_dict(self.namespace) 95 if self.list[0] in filters: 96 return filters[self.list[0]] 97 return None 98