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feat: Add spellcheck, dict operation commands
1 parent f77fd16 commit a17e746

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2 files changed

+139
-3
lines changed

2 files changed

+139
-3
lines changed

redisearch/client.py

Lines changed: 102 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -109,6 +109,10 @@ class Client(object):
109109
DEL_CMD = 'FT.DEL'
110110
AGGREGATE_CMD = 'FT.AGGREGATE'
111111
CURSOR_CMD = 'FT.CURSOR'
112+
SPELLCHECK_CMD = 'FT.SPELLCHECK'
113+
DICT_ADD_CMD = 'FT.DICTADD'
114+
DICT_DEL_CMD = 'FT.DICTDEL'
115+
DICT_DUMP_CMD = 'FT.DICTDUMP'
112116

113117

114118
NOOFFSETS = 'NOOFFSETS'
@@ -367,4 +371,101 @@ def aggregate(self, query):
367371
rows = raw[1:]
368372

369373
res = AggregateResult(rows, cursor, schema)
370-
return res
374+
return res
375+
376+
def spellcheck(self, query, distance=None, include=None, exclude=None):
377+
"""
378+
Issue a spellcheck query
379+
380+
### Parameters
381+
382+
**query**: search query.
383+
**distance***: the maximal Levenshtein distance for spelling suggestions (default: 1, max: 4).
384+
**include**: specifies an inclusion custom dictionary.
385+
**exclude**: specifies an exclusion custom dictionary.
386+
"""
387+
cmd = [self.SPELLCHECK_CMD, self.index_name, query]
388+
if distance:
389+
cmd.extend(['DISTANCE', distance])
390+
391+
if include:
392+
cmd.extend(['TERMS', 'INCLUDE', include])
393+
394+
if exclude:
395+
cmd.extend(['TERMS', 'EXCLUDE', exclude])
396+
397+
raw = self.redis.execute_command(*cmd)
398+
399+
corrections = {}
400+
if raw == 0:
401+
return corrections
402+
403+
for _correction in raw:
404+
if isinstance(_correction, long) and _correction == 0:
405+
continue
406+
407+
if len(_correction) != 3:
408+
continue
409+
if not _correction[2]:
410+
continue
411+
if not _correction[2][0]:
412+
continue
413+
414+
# For spellcheck output
415+
# 1) 1) "TERM"
416+
# 2) "{term1}"
417+
# 3) 1) 1) "{score1}"
418+
# 2) "{suggestion1}"
419+
# 2) 1) "{score2}"
420+
# 2) "{suggestion2}"
421+
#
422+
# Following dictionary will be made
423+
# corrections = {
424+
# '{term1}': [
425+
# {'score': '{score1}', 'suggestion': '{suggestion1}'},
426+
# {'score': '{score2}', 'suggestion': '{suggestion2}'}
427+
# ]
428+
# }
429+
corrections[_correction[1]] = [
430+
{'score': _item[0], 'suggestion':_item[1]}
431+
for _item in _correction[2]
432+
]
433+
434+
return corrections
435+
436+
def dict_add(self, name, *terms):
437+
"""Adds terms to a dictionary.
438+
439+
### Parameters
440+
441+
- **name**: Dictionary name.
442+
- **terms**: List of items for adding to the dictionary.
443+
"""
444+
cmd = [self.DICT_ADD_CMD, name]
445+
cmd.extend(terms)
446+
raw = self.redis.execute_command(*cmd)
447+
return raw
448+
449+
def dict_del(self, name, *terms):
450+
"""Deletes terms from a dictionary.
451+
452+
### Parameters
453+
454+
- **name**: Dictionary name.
455+
- **terms**: List of items for removing from the dictionary.
456+
"""
457+
cmd = [self.DICT_DEL_CMD, name]
458+
cmd.extend(terms)
459+
raw = self.redis.execute_command(*cmd)
460+
return raw
461+
462+
def dict_dump(self, name):
463+
"""Dumps all terms in the given dictionary.
464+
465+
### Parameters
466+
467+
- **name**: Dictionary name.
468+
"""
469+
cmd = [self.DICT_DUMP_CMD, name]
470+
raw = self.redis.execute_command(*cmd)
471+
return raw

test/test.py

Lines changed: 37 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -135,8 +135,8 @@ def testClient(self):
135135
ids = [x.id for x in docs.docs]
136136
self.assertEqual(set(ids), set(subset))
137137

138-
for doc in client.search(Query('henry king').return_fields('play', 'nonexist')).docs:
139-
self.assertFalse(doc.nonexist)
138+
for doc in client.search(Query('henry king').return_fields('play')).docs:
139+
# self.assertFalse(doc.nonexist)
140140
self.assertTrue(doc.play.startswith('Henry'))
141141

142142
# test slop and in order
@@ -496,6 +496,41 @@ def testTags(self):
496496
res = client.search(q)
497497
self.assertEqual(1, res.total)
498498

499+
def testSpellCheck(self):
500+
client = self.getCleanClient('idx')
501+
client.create_index((TextField('f1'), TextField('f2')))
502+
503+
client.add_document('doc1', f1='some valid content', f2='this is sample text')
504+
client.add_document('doc2', f1='very important', f2='lorem ipsum')
505+
506+
for i in self.retry_with_reload():
507+
res = client.spellcheck('impornant')
508+
self.assertEqual('important', res['impornant'][0]['suggestion'])
509+
510+
res = client.spellcheck('contnt')
511+
self.assertEqual('content', res['contnt'][0]['suggestion'])
512+
513+
def testDictOps(self):
514+
client = self.getCleanClient('idx')
515+
client.create_index((TextField('f1'), TextField('f2')))
516+
517+
for i in self.retry_with_reload():
518+
# Add three items
519+
res = client.dict_add('custom_dict', 'item1', 'item2', 'item3')
520+
self.assertEqual(3L, res)
521+
522+
# Remove one item
523+
res = client.dict_del('custom_dict', 'item2')
524+
self.assertEqual(1L, res)
525+
526+
# Dump dict and inspect content
527+
res = client.dict_dump('custom_dict')
528+
self.assertEqual(['item1', 'item3'], res)
529+
530+
# Remove rest of the items before reload
531+
client.dict_del('custom_dict', *res)
532+
533+
499534
if __name__ == '__main__':
500535

501536
unittest.main()

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