def review_summarization(movie_id):
try:
positive_reviews = Reviews.objects(
Movie_id=movie_id, Sense='positive').order_by('-Polarity')
negative_reviews = Reviews.objects(
Movie_id=movie_id, Sense='negative').order_by('Polarity')
neutral_reviews = Reviews.objects(Movie_id=movie_id, Sense='neutral')
positive_string = ""
negative_string = ""
neutral_string = ""
for review in positive_reviews:
positive_string += (review.Body + " ")
for review in negative_reviews:
negative_string += (review.Body + " ")
for review in neutral_reviews:
neutral_string += (review.Body + " ")
positive_summ = text_summarization.summarize(text=positive_string)
negative_summ = text_summarization.summarize(text=negative_string)
neutral_summ = text_summarization.summarize(text=neutral_string)
return {
"positive_key_reviews": positive_summ,
"negative_key_reviews": negative_summ,
"neutral_key_reviews": neutral_summ
}
except:
raise InvalidQueryError("Summary cannot be generated")
def reviews(request, template='review/reviews.html', extra_context=None):
review_positiv = Reviews.objects(
review_eval='positiv').order_by('+hotel_name')
review_neutral = Reviews.objects(
review_eval='neutral').order_by('+hotel_name')
review_negativ = Reviews.objects(
review_eval='negativ').order_by('+hotel_name')
best_hotels = Reviews.objects.aggregate(
{"$match": {
"review_eval": "positiv"
}}, {"$group": {
"_id": "$hotel_name",
"sum": {
"$sum": 1
}
}}, {"$sort": {
"sum": -1
}}, {"$limit": 10})
context = {
# 'reviews':review_list,
#Future work
'reviews_positiv': review_positiv,
'reviews_neutral': review_neutral,
'reviews_negativ': review_negativ,
'best_hotels': best_hotels
}
if extra_context is not None:
context.update(extra_context)
return render(request, 'review/reviews.html', context)
def review_summarization(movie_id):
try:
positive_reviews = Reviews.objects(Movie_id=movie_id, Sense='positive').order_by('-Polarity')
negative_reviews = Reviews.objects(Movie_id=movie_id, Sense='negative').order_by('Polarity')
neutral_reviews = Reviews.objects(Movie_id=movie_id, Sense='neutral')
positive_string=""
negative_string=""
neutral_string=""
for review in positive_reviews:
positive_string+=(review.Body+" ")
for review in negative_reviews:
negative_string+=(review.Body+" ")
for review in neutral_reviews:
neutral_string+=(review.Body+" ")
positive_summ = text_summarization.summarize(text=positive_string)
negative_summ = text_summarization.summarize(text=negative_string)
neutral_summ = text_summarization.summarize(text=neutral_string)
return {
"positive_key_reviews":positive_summ,
"negative_key_reviews":negative_summ,
"neutral_key_reviews":neutral_summ
}
except:
raise InvalidQueryError("Summary cannot be generated")
def update_movie_review(review_id,
movie_id=None,
body=None,
timestamp=None,
deleted=None,
review_author=None):
try:
review = Reviews.objects(id=review_id)
if movie_id:
review.update(Movie_id=movie_id)
if body:
review.update(Body=body)
analysis = comments_analysis.sentiment(sentence=body)
review.update(Polarity=analysis['polarity'])
review.update(Sense=analysis['sense'])
if timestamp:
review.update(Timestamp=timestamp)
if deleted:
review.update(Deleted=deleted)
if review_author:
review.update(Review_author=review_author)
return {'Success': True}
except:
raise InvalidQueryError("Check for details")
def update_movie_review(review_id, movie_id=None, body=None, timestamp=None, deleted=None, review_author=None):
try:
review = Reviews.objects(id=review_id)
if movie_id:
review.update(Movie_id=movie_id)
if body:
review.update(Body=body)
analysis = comments_analysis.sentiment(sentence=body)
review.update(Polarity=analysis['polarity'])
review.update(Sense=analysis['sense'])
if timestamp:
review.update(Timestamp=timestamp)
if deleted:
review.update(Deleted=deleted)
if review_author:
review.update(Review_author=review_author)
return {'Success':True}
except:
raise InvalidQueryError("Check for details")
def get_movie_reviews(movie_id,offset=0,limit=10):
positive_reviews=[]
negative_reviews=[]
neutral_reviews=[]
reviews = Reviews.objects(Movie_id=movie_id)
#print reviews
for review in reviews:
d={}
d['sentence']=review.Body
d['polarity']=review.Polarity
if review.Sense == 'positive':
positive_reviews.append(d)
elif review.Sense == 'neutral':
neutral_reviews.append(d)
else:
negative_reviews.append(d)
positive_reviews = sorted(positive_reviews, key=lambda k: k['polarity'], reverse=True)
negative_reviews = sorted(negative_reviews, key=lambda k: k['polarity'], reverse=True)
#rating = calculate_rating(positive_reviews,negative_reviews)
#print rating
return positive_reviews,neutral_reviews,negative_reviews
