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Merge pull request #3 from AppsFuel/master
Review for Reding
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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@@ -4,3 +4,4 @@ Reding.egg-info/ | |
| .cache/ | ||
| .coverage | ||
| VENV/ | ||
| .idea/ | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,173 @@ | ||
| from datetime import datetime | ||
| import redis | ||
| from reding.settings import KEY_CONFIG, REDIS_CONFIG | ||
| rclient = redis.StrictRedis(**REDIS_CONFIG) | ||
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| def get_key_name(template, **kw): | ||
| d = KEY_CONFIG.copy() | ||
| d.update(dict((key, value) for (key, value) in kw.iteritems() if value)) | ||
| return template.format(**d) | ||
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| def zrange(start, end, reverse): | ||
| if not reverse: | ||
| return rclient.zrangebyscore, start, end | ||
| else: | ||
| return rclient.zrevrangebyscore, end, start | ||
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| class ObjectSubjectsManager(object): | ||
| def __init__(self, **kwargs): | ||
| self.template = get_key_name('{prefix}:{object}:{{object_id}}:{subjects}', **kwargs) | ||
| self.template_review = get_key_name('{prefix}:{object}:{{object_id}}:review:{subjects}', **kwargs) | ||
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| def count(self, object_id, min_vote='-inf', max_vote='+inf'): | ||
| return rclient.zcount( | ||
| name=self.template.format(object_id=object_id), | ||
| min=min_vote, | ||
| max=max_vote, | ||
| ) | ||
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| def scoredrange(self, object_id, offset, size, min_vote='-inf', max_vote='+inf', reverse=False): | ||
| func, min_vote, max_vote = zrange(min_vote, max_vote, reverse) | ||
| return func( | ||
| name=self.template.format(object_id=object_id), | ||
| min=min_vote, | ||
| max=max_vote, | ||
| start=offset, | ||
| num=size, | ||
| withscores=True, | ||
| ) | ||
|
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| def score(self, object_id, user_id): | ||
| return rclient.zscore( | ||
| name=self.template.format(object_id=object_id), | ||
| value=user_id, | ||
| ) | ||
|
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| def review(self, object_id, user_id): | ||
| return rclient.hget( | ||
| name=self.template_review.format(object_id=object_id), | ||
| key=user_id, | ||
| ) | ||
|
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| def reviews(self, object_id, *user_ids): | ||
| return dict(zip(user_ids, rclient.hmget( | ||
| self.template_review.format(object_id=object_id), user_ids | ||
| ))) | ||
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| def create(self, object_id, user_id, vote, review): | ||
| rclient.zadd( | ||
| self.template.format(object_id=object_id), | ||
| vote, | ||
| user_id, | ||
| ) | ||
| name = self.template_review.format(object_id=object_id) | ||
| if review: | ||
| rclient.hset(name, user_id, review) | ||
| else: | ||
| rclient.hdel(name, user_id) | ||
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| def remove(self, object_id, user_id): | ||
| rclient.zrem( | ||
| self.template.format(object_id=object_id), | ||
| user_id, | ||
| ) | ||
| rclient.hdel( | ||
| self.template_review.format(object_id=object_id), | ||
| user_id, | ||
| ) | ||
|
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| class SubjectObjectsManager(object): | ||
| def __init__(self, **kwargs): | ||
| self.template = get_key_name('{prefix}:{subject}:{{user_id}}:{objects}', **kwargs) | ||
|
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| def scoredrange(self, user_id, offset, size, min_vote='-inf', max_vote='+inf', reverse=False): | ||
| func, min_vote, max_vote = zrange(min_vote, max_vote, reverse) | ||
| scored = func( | ||
| name=self.template.format(user_id=user_id), | ||
| min=min_vote, | ||
| max=max_vote, | ||
| start=offset, | ||
| num=size, | ||
| withscores=True, | ||
| ) | ||
| return [(k, datetime.fromtimestamp(v)) for k, v in scored] | ||
|
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| def score(self, user_id, object_id): | ||
| try: | ||
| return datetime.fromtimestamp(rclient.zscore( | ||
| name=self.template.format(user_id=user_id), | ||
| value=object_id, | ||
| )) | ||
| except TypeError: | ||
| return 0 | ||
|
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| def create(self, user_id, object_id, timestamp): | ||
| rclient.zadd( | ||
| self.template.format(user_id=user_id), | ||
| timestamp, | ||
| object_id, | ||
| ) | ||
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| def remove(self, user_id, object_id): | ||
| rclient.zrem( | ||
| self.template.format(user_id=user_id), | ||
| object_id, | ||
| ) | ||
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| class ObjectsManager(object): | ||
| def __init__(self, **kwargs): | ||
| self.template = get_key_name('{prefix}:{objects}', **kwargs) | ||
|
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| def scoredrange(self, offset, size, min_vote='-inf', max_vote='+inf', reverse=False): | ||
| func, min_vote, max_vote = zrange(min_vote, max_vote, reverse) | ||
| return func( | ||
| name=self.template, | ||
| min=min_vote, | ||
| max=max_vote, | ||
| start=offset, | ||
| num=size, | ||
| withscores=True, | ||
| ) | ||
|
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| def score(self, object_id): | ||
| return rclient.zscore( | ||
| name=self.template, | ||
| value=object_id, | ||
| ) | ||
|
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| def incrby(self, object_id, delta): | ||
| rclient.zincrby( | ||
| name=self.template, | ||
| value=object_id, | ||
| amount=delta, | ||
| ) | ||
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| def remove(self, object_id): | ||
| rclient.zrem( | ||
| self.template, | ||
| object_id, | ||
| ) | ||
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| def filtered(self, objects, now, reverse): | ||
| if not objects: | ||
| return [] | ||
|
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| tmp_key = '{0}:tmp:{1}'.format(self.template, now) | ||
| tmp_dest_key = '{0}:tmp_dest:{1}'.format(self.template, now) | ||
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| rclient.sadd(tmp_key, *objects) | ||
| rclient.zinterstore(tmp_dest_key, (self.template, tmp_key), aggregate='SUM') | ||
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| if reverse: | ||
| zsorted = rclient.zrevrangebyscore(tmp_dest_key, '+inf', '-inf') | ||
| else: | ||
| zsorted = rclient.zrangebyscore(tmp_dest_key, '-inf', '+inf') | ||
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| rclient.delete(tmp_key, tmp_dest_key) | ||
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| return zsorted + list(set(objects).difference(set(zsorted))) |
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