X-Git-Url: http://git.veekun.com/zzz-pokedex.git/blobdiff_plain/82f8dc6678e16b56c58050f90b73d3d98745191f..71a6e529a593aed38d5a7898b50df5cdbaefc004:/pokedex/lookup.py diff --git a/pokedex/lookup.py b/pokedex/lookup.py index 79ea5b7..f029b77 100644 --- a/pokedex/lookup.py +++ b/pokedex/lookup.py @@ -58,7 +58,9 @@ class PokedexLookup(object): for cls in ( tables.Ability, tables.Item, + tables.Location, tables.Move, + tables.Nature, tables.Pokemon, tables.Type, ) @@ -142,7 +144,7 @@ class PokedexLookup(object): # especially when e.g. German names are very similar to English names speller_entries = [] for cls in self.indexed_tables.values(): - q = session.query(cls) + q = self.session.query(cls) for row in q.yield_per(5): row_key = dict(table=unicode(cls.__tablename__), @@ -224,21 +226,81 @@ class PokedexLookup(object): return name + def _apply_valid_types(self, name, valid_types): + """Combines the enforced `valid_types` with any from the search string + itself and updates the query. + + For example, a name of 'a,b:foo' and valid_types of b,c will search for + only `b`s named "foo". + + Returns `(name, merged_valid_types, term)`, where `name` has had any type + prefix stripped, `merged_valid_types` combines the original + `valid_types` with the type prefix, and `term` is a query term for + limited to just the allowed types. If there are no type restrictions + at all, `term` will be None. + """ + + # Remove any type prefix (pokemon:133) first + user_valid_types = [] + if ':' in name: + prefix_chunk, name = name.split(':', 1) + name = name.strip() + + prefixes = prefix_chunk.split(',') + user_valid_types = [_.strip() for _ in prefixes] + + # Merge the valid types together. Only types that appear in BOTH lists + # may be used. + # As a special case, if the user asked for types that are explicitly + # forbidden, completely ignore what the user requested + combined_valid_types = [] + if user_valid_types and valid_types: + combined_valid_types = list( + set(user_valid_types) & set(combined_valid_types) + ) + + if not combined_valid_types: + # No overlap! Just use the enforced ones + combined_valid_types = valid_types + else: + # One list or the other was blank, so just use the one that isn't + combined_valid_types = valid_types + user_valid_types + + if not combined_valid_types: + # No restrictions + return name, [], None + + # Construct the term + type_terms = [] + final_valid_types = [] + for valid_type in combined_valid_types: + table_name = self._parse_table_name(valid_type) + + # Quietly ignore bogus valid_types; more likely to DTRT + if table_name: + final_valid_types.append(valid_type) + type_terms.append(whoosh.query.Term(u'table', table_name)) + + return name, final_valid_types, whoosh.query.Or(type_terms) + + def _parse_table_name(self, name): """Takes a singular table name, table name, or table object and returns the table name. Returns None for a bogus name. """ + # Table object if hasattr(name, '__tablename__'): return getattr(name, '__tablename__') - elif name in self.indexed_tables: - return name - elif name + 's' in self.indexed_tables: - return name + 's' - else: - # Bogus. Be nice and return dummy - return None + + # Table name + for table in self.indexed_tables.values(): + if name in (table.__tablename__, table.__singlename__): + return table.__tablename__ + + # Bogus. Be nice and return dummy + return None def _whoosh_records_to_results(self, records, exact=True): """Converts a list of whoosh's indexed records to LookupResult tuples @@ -316,53 +378,37 @@ class PokedexLookup(object): exact = True form = None - # Remove any type prefix (pokemon:133) before constructing a query - if ':' in name: - prefix_chunk, name = name.split(':', 1) - name = name.strip() - - if not valid_types: - # Only use types from the query string if none were explicitly - # provided - prefixes = prefix_chunk.split(',') - valid_types = [_.strip() for _ in prefixes] + # Pop off any type prefix and merge with valid_types + name, merged_valid_types, type_term = \ + self._apply_valid_types(name, valid_types) # Random lookup if name == 'random': - return self.random_lookup(valid_types=valid_types) + return self.random_lookup(valid_types=merged_valid_types) # Do different things depending what the query looks like # Note: Term objects do an exact match, so we don't have to worry about # a query parser tripping on weird characters in the input + try: + # Let Python try to convert to a number, so 0xff works + name_as_number = int(name, base=0) + except ValueError: + # Oh well + name_as_number = None + if '*' in name or '?' in name: exact_only = True query = whoosh.query.Wildcard(u'name', name) - elif rx_is_number.match(name): + elif name_as_number is not None: # Don't spell-check numbers! exact_only = True - query = whoosh.query.Term(u'row_id', name) + query = whoosh.query.Term(u'row_id', unicode(name_as_number)) else: # Not an integer - query = whoosh.query.Term(u'name', name) \ - & whoosh.query.Term(u'forme_name', u'__empty__') + query = whoosh.query.Term(u'name', name) - # If there's a space in the input, this might be a form - if ' ' in name: - form, formless_name = name.split(' ', 1) - form_query = whoosh.query.Term(u'name', formless_name) \ - & whoosh.query.Term(u'forme_name', form) - query = query | form_query - - ### Filter by type of object - type_terms = [] - for valid_type in valid_types: - table_name = self._parse_table_name(valid_type) - if table_name: - # Quietly ignore bogus valid_types; more likely to DTRT - type_terms.append(whoosh.query.Term(u'table', table_name)) - - if type_terms: - query = query & whoosh.query.Or(type_terms) + if type_term: + query = query & type_term ### Actual searching @@ -432,15 +478,21 @@ class PokedexLookup(object): return self.lookup(unicode(n), valid_types=[ partitions[0][0] ]) - def prefix_lookup(self, prefix): + def prefix_lookup(self, prefix, valid_types=[]): """Returns terms starting with the given exact prefix. - No special magic is currently done with the name; type prefixes are not - recognized. + Type prefixes are recognized, but no other name munging is done. """ + # Pop off any type prefix and merge with valid_types + prefix, merged_valid_types, type_term = \ + self._apply_valid_types(prefix, valid_types) + query = whoosh.query.Prefix(u'name', self.normalize_name(prefix)) + if type_term: + query = query & type_term + searcher = self.index.searcher() searcher.weighting = LanguageWeighting() results = searcher.search(query) # XXX , limit=self.MAX_LOOKUP_RESULTS)