2853156a2b
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1428206 13f79535-47bb-0310-9956-ffa450edef68
156 lines
5.2 KiB
Python
156 lines
5.2 KiB
Python
# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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# App reviews collection implementation
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from util import *
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from atomutil import *
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from sys import debug
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# Convert a particular user id to a reviews id
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def reviewsid(user):
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return ("reviews", user.get(()), "user.reviews")
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# Get user reviews from the cache
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def getreviews(id, cache):
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debug('reviews.py::getreviews::id', id)
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val = cache.get(id)
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if isNull(val):
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return ()
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reviews = cdddr(car(val))
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if not isNull(reviews) and isList(car(cadr(car(reviews)))):
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# Expand list of entries
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ereviews = tuple(map(lambda e: cons("'entry", e), cadr(car(reviews))))
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debug('reviews.py::getreviews::ereviews', ereviews)
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return ereviews
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debug('reviews.py::getreviews::reviews', reviews)
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return reviews
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# Get a review from a user's reviews
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def getreview(id, reviews):
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if isNull(reviews):
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return None
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if car(id) == entryid(reviews):
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return (car(reviews),)
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return getreview(id, cdr(reviews))
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# Get reviews from the user's reviews
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def get(id, user, cache, apps, ratings):
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debug('reviews.py::get::id', id)
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if isNull(id):
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reviews = ((("'feed", ("'title", "Your Reviews"), ("'id", user.get(()))) + getreviews(reviewsid(user), cache)),)
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debug('reviews.py::get::reviews', reviews)
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return reviews
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# Get the requested app
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app = apps.get(id)
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if isNull(app):
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debug('reviews.py::get', 'app not found', id)
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return False
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# Get the review
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review = getreview(id, getreviews(reviewsid(user), cache))
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if isNull(review):
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debug('reviews.py::get', 'review not found', id)
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# Return a default empty review
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return mkentry(car(id), car(id), user.get(()), now(), ())
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debug('reviews.py::get::review', review)
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return review
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# Patch an app ratings
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def patchratings(id, user, ratings, oreview, nreview):
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patch = ("'patch", ("'old", "0" if isNull(oreview) else cadr(content(oreview))), ("'new", "0" if isNull(nreview) else cadr(content(nreview))))
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patchentry = mkentry(car(id), car(id), user.get(()), now(), patch);
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debug('reviews.py::patchratings::patchentry', patchentry)
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return ratings.patch(id, patchentry)
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# Put reviews into the cache
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def putreviews(id, reviews, cache):
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debug('reviews.py::putreviews::id', id)
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debug('reviews.py::putreviews::reviews', reviews)
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val = ((("'feed", ("'title", "Your Reviews"), ("'id", cadr(id))) + reviews),)
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return cache.put(id, val)
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# Put a review into a user's reviews
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def putreview(id, review, reviews):
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if isNull(reviews):
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return review
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if car(id) == entryid(reviews):
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return cons(car(review), cdr(reviews))
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return cons(car(reviews), putreview(id, review, cdr(reviews)))
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# Put a review into the user's reviews
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def put(id, review, user, cache, apps, ratings):
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debug('reviews.py::put::id', id)
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debug('reviews.py::put::review', review)
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# Get the requested app
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app = apps.get(id)
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if isNull(app):
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debug('reviews.py::put', 'app not found', id)
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return False
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reviewentry = mkentry(title(review), car(id), user.get(()), now(), content(review))
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debug('reviews.py::put::reviewentry', reviewentry)
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# Get old review
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reviews = getreviews(reviewsid(user), cache)
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oreview = getreview(id, reviews)
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# Update the user's reviews record
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nreviews = putreview(id, reviewentry, reviews)
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putreviews(reviewsid(user), nreviews, cache)
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# Update the app's ratings
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return patchratings(id, user, ratings, oreview, review)
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# Delete a review from a reviews record
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def deletereview(id, reviews):
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if isNull(reviews):
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return ()
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if car(id) == entryid(reviews):
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return cdr(reviews)
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return cons(car(reviews), deletereview(id, cdr(reviews)))
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# Delete reviews from the user's reviews record
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def delete(id, user, cache, apps, ratings):
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debug('reviews.py::delete::id', id)
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if isNull(id):
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return cache.delete(reviewsid(user))
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# Get the requested app
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app = apps.get(id)
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if isNull(app):
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debug('reviews.py::delete', 'app not found', id)
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return False
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# Get the review
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reviews = getreviews(reviewsid(user), cache)
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review = getreview(id, reviews)
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if isNull(review):
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debug('reviews.py::delete', 'review not found', id)
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return False
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# Update the user's reviews record
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nreviews = deletereview(id, reviews)
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putreviews(reviewsid(user), nreviews, cache)
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# Update the app's ratings
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return patchratings(id, user, ratings, review, None)
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