從CRML獲取圖像二進制數據

Question

嘗試從CRML媒體資源中提取：all（first：item）。使用遺產RETS回購。這裏是我的紅寶石示例文件：

require 'rets' 

client = Rets::Client.new({ 
    login_url: 'url', 
    username: 'user', 
    password: 'password', 
    version: 'RETS/1.7.2' 
}) 

begin 
    client.login 
rescue => e 
    puts 'Error: ' + e.message 
    exit! 
end 

puts 'We connected! Lets get all the photos for a property...' 


photos = client.find (:first), { 
    search_type: 'Media', 
    class: 'Media', 
    query: '(MediaModificationTimestamp=2017-04-15+),(MediaType=Image)' 
} 


photo = open(photo = photos['MediaURL']) 
require 'base64' 
image = Base64.encode64(photo.read) 


File.open('property-1.gif', 'wb') do|f| 
    f.write(Base64.decode64(image)) 
end 

puts photos.length.to_s + ' photos saved.' 
client.logout 

但我只得到一個圖像，而不是26預期。不知道這是否會成爲檢索所有列表中的所有圖像的最佳方法，在我獲得第一個圖像後。下面是關於這個問題https://github.com/estately/rets/issues/210

Answer 1

require 'rets' 

client = Rets::Client.new({ 
    login_url: 'url', 
    username: 'username', 
    password: 'password', 
    version: 'RETS/1.7.2' 
}) 

begin 
    client.login 
rescue => e 
    puts 'Error: ' + e.message 
    exit! 
end 

puts 'We connected! Lets get all the photos for a property...' 


photos = client.find (:all), { 
    search_type: 'Media', 
    class: 'Media', 
    query: '(ResourceRecordKeyNumeric=117562969),(MediaType=Image)' 
} 

photos.each_with_index do |data, index| 
    photo = open(photo = data['MediaURL']) 
    puts data['MediaURL'] 
    require 'base64' 
    image = Base64.encode64(photo.read) 
    File.open("property-#{index.to_s}.jpg", 'wb') do |f| 
    f.write(Base64.decode64(image)) 
    end 
end 


puts photos.length.to_s + ' photos saved.' 
client.logout 

Answer 2

你可以嘗試給逗號分隔的同時獲得的多個列表的所有圖像，在您的查詢部分上市ID的更多信息。

photos = client.find (:all), { 
search_type: 'Media', 
    class: 'Media', 
    query: '(ResourceRecordKeyNumeric=117562969,117562970,117562971),(MediaType=Image)' 
}