def relation_from(self, src, type):
'''
Add relation type from src to self.
'''
ret, idp = CPLDirect.cpl_add_relation(src.id, self.id, type)
if not CPLDirect.cpl_is_ok(ret):
raise CPLException('Could not add relation: ' +
CPLDirect.cpl_error_string(ret), ret)
r = cpl_relation(idp, self.id, src.id, type, D_DESCENDANTS)
return r
def relation_to(self, dest, type):
'''
Add relation type from self to dest.
'''
ret, idp = CPLDirect.cpl_add_relation(self.id, dest.id, type)
if not CPLDirect.cpl_is_ok(ret):
raise CPLException('Could not add relation: ' +
CPLDirect.cpl_error_string(ret), ret)
r = cpl_relation(idp, dest.id, self.id, type, D_ANCESTORS)
return r
def relation_from(self, src, type, bundle):
'''
Add relation type from src to self.
'''
bundle = bundle.id
ret, idp = CPLDirect.cpl_add_relation(src.id, self.id, type, bundle)
if not CPLDirect.cpl_is_ok(ret):
raise CPLException('Could not add relation: ' +
CPLDirect.cpl_error_string(ret), ret)
r = cpl_relation(idp, self.id, src.id, type, bundle, D_DESCENDANTS)
return r
def relation_to(self, dest, type, bundle):
'''
Add relation type from self to dest.
'''
bundle = bundle.id
ret, idp = CPLDirect.cpl_add_relation(self.id, dest.id, type, bundle)
if not CPLDirect.cpl_is_ok(ret):
raise CPLException('Could not add relation: ' +
CPLDirect.cpl_error_string(ret), ret)
r = cpl_relation(idp, dest.id, self.id, type, bundle, D_ANCESTORS)
return r
