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scrapTripAdvisorLoop_anony_ENG_complete.R
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scrapTripAdvisorLoop_anony_ENG_complete.R
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###########################################################################
#
# TRIP ADVISOR OPINIONS
#
# Inspired by:
# http://notesofdabbler.github.io/201408_hotelReview/scrapeTripAdvisor.html
# Author: Ana Valdivia
# Date: June 2016
###########################################################################
# Libraries
library(rvest)
library(beepr)
# change language
Sys.setlocale("LC_TIME", "English")
# Scrapping
TripAdvisorAlhambra <- data.frame()
totalpages <- 480
last <- 1
for(k in 1:3){
# for(k in last:totalpages){
print(k)
if(k == 1) {
url <- paste0("https://www.tripadvisor.co.uk/Attraction_Review-g187430-d243774-Reviews-Mezquita_Cathedral_de_Cordoba-Cordoba_Province_of_Cordoba_Andalucia.html#REVIEWS")
} else {
url <- paste0("https://www.tripadvisor.co.uk/Attraction_Review-g187430-d243774-Reviews-or",k-1,"0-Reviews-Mezquita_Cathedral_de_Cordoba-Cordoba_Province_of_Cordoba_Andalucia.html")
}
# User's information:
# Name
users <- url %>%
read_html() %>%
html_nodes(".member_info")
# .memberOverlayLink")
rev <- c()
for(i in 1:length(users)){
user.ch <- as.character(users[i])
if(substr(user.ch, 27, 33) == "<div id"){
rev <- append(rev, i, after=length(rev))
}
else if(substr(user.ch, 27, 44) == '<div class="avatar' & k > 1){
rev <- append(rev, i, after=length(rev))
}
}
users <- users[rev] # Only user's Reviews
username <- users %>%
html_node(".username") %>%
html_text()
username <- gsub("\n", "", username)
# Location
users <- url %>%
read_html() %>%
html_nodes(".member_info")
rev <- c()
for(i in 1:length(users)){
user.ch <- as.character(users[i])
if(substr(user.ch, 27, 33) == "<div id"){
rev <- append(rev, i, after=length(rev))
}
else if(substr(user.ch, 27, 44) == '<div class="avatar'){
rev <- append(rev, i, after=length(rev))
}
}
users <- users[rev]
location <- users %>%
html_nodes(".location") %>%
html_text()
location <- gsub("\n", "", location)
# Opinions
users <- url %>%
read_html() %>%
html_nodes(".memberBadging .reviewerBadge")
userop <- users %>%
html_node(".badgeText") %>%
html_text()
# For anonymous users
for(i in 1:length(username)){
if(username[i] == "A TripAdvisor Member "){
username[i] <- "A TripAdvisor Member"
location <- append(location, NA, after=i-1)
userop <- append(userop, NA, after=i-1)
}
}
# About reviews
reviews <- url %>%
read_html() %>%
html_nodes("#REVIEWS .innerBubble")
# ID reviewrs
id <- reviews %>%
html_node(".quote a") %>%
html_attr("id")
#
quote <- reviews %>%
html_node(".quote span") %>%
html_text()
rating <- reviews %>%
html_node(".rating .rating_s_fill") %>%
html_attr("alt") %>%
gsub(" of 5 bubbles", "", .) %>%
as.integer()
# Date of the opinion
date <- reviews %>%
html_node(".rating .ratingDate") %>%
html_attr("title") %>%
as.Date("%d %b %Y")
# Another format
for(i in 1:length(date)){
if(is.na(date[i])){
date.aux <- reviews %>%
html_node(".ratingDate")
date[i] <- as.Date(substr(regmatches(as.character(date.aux[i]),
regexpr('Reviewed .+\n', as.character(date.aux[i]))), 10, nchar(regmatches(as.character(date.aux[i]), regexpr('Reviewed .+\n', as.character(date.aux[i]))))-1), format="%d %b %Y")
}
}
# PARTIAL REVIEWS:
# review <- reviews %>%
# html_node(".entry .partial_entry") %>%
# html_text()
#
# reviewnospace <- gsub("\n", "", review)
# COMPLETE REVIEWS:
reviewnospace <- as.character(c(1:length(id)))
for(i in 1:length(id)){
completeReviewURL <- paste0("https://www.tripadvisor.co.uk/ShowUserReviews-g187430-d243774-r",gsub("rn", "", id[i]),"-Mezquita_Cathedral_de_Cordoba-Cordoba_Province_of_Cordoba_Andalucia.html#REVIEWS")
reviews_aux <- completeReviewURL %>%
read_html() %>%
html_nodes(".entry")
reviewnospace[i] <- gsub(paste0('.*"review_',gsub("rn", "", id[i]),'\">\n|\n.*'), "", as.character(reviews_aux[1]))
}
# Page in TripAdvisor
page <- rep(k, length(username))
temp.TripAdvisorAlhambra <- data.frame(id, username, location, userop, quote,
rating, date, reviewnospace, page, stringsAsFactors = FALSE)
TripAdvisorAlhambra <- rbind(TripAdvisorAlhambra, temp.TripAdvisorAlhambra)
}
beep(2)
# Remove <br/> symbol
TripAdvisorAlhambra <- TripAdvisorAlhambra[!(duplicated(TripAdvisorAlhambra$reviewnospace)),]
TripAdvisorAlhambra$reviewnospace <- gsub("<br/>", "", TripAdvisorAlhambra$reviewnospace)
# Merge title and opinion
TripAdvisorAlhambra$titleopinion <- paste(TripAdvisorAlhambra$quote, TripAdvisorAlhambra$reviewnospace, sep=". ")
TripAdvisorAlhambra2 <- TripAdvisorAlhambra[TripAdvisorAlhambra$date <= as.Date("2016-10-31"),]
write.csv(TripAdvisorAlhambra2, file="./data/Alhambra/TripAdvisor_MezquitaCordoba_20161031_ENGLISH_complete.csv")