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I am not able to insert data in mongodb using rails if the data type is of array type

following is the code

def friend

Twitter.configure do |config|
config.consumer_key = 'GpCZ3ppx2tvOYB7mP4FONw'
config.consumer_secret = 'ectbzaP2oLPTSMGJaR5Fj6mmdgFyVsWeM9HoZ2iwaI'
config.oauth_token ='1378905500-TMtwUpl4bVpVDAcZQ29SVONITmFLL1aCzSLHDQQ'
config.oauth_token_secret = 'SIsfYHqSKfTEUD4dutaI7zYbfJQjxXmiNXiv4vWkfY'
end
@frend= Twitter.friends("shamshul2007")
@frend.each do |hell|
puts hell.name.inspect.to_s
end

#=====
fr=Array.new
@frend.each do |f|

fr.push(f)
end


#data insertion

@fri=Friend.new
@fri.username="shamshul2007"
@fri.friend=fr  
@fri.save
end

model is friend.rb 

class Friend
include Mongoid::Document
field :username, type: String
field :friend, type: Array
end

I got the following error while pushing data to mongodb

undefined method `__bson_dump__' for #<Twitter::User:0x007fbbec1a8538>
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2 Answers

up vote 0 down vote

What this code is doing ??

  a) @frend.each do |f|
  b)   @fri.friend=f 
  c) end

@fri.friend should be provided an array type value.

In above code snippet

  1) if "f" is an array??  --- line b)
  2) if "f" is an array then it is being overwritten each time the loop rotates. --- line b)

So check these things and should help you..
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I update the code in my previous post and mention the error also.I am trying to fetch twitter friend of a specific user and saving to mongodb array type field ie friend in model friend.rb –  shamshul2007 Jun 2 '13 at 6:25
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up vote 0 down vote

I fixed the issue and the code is as follow,I was not taking the sub array name of the field provided by twitter.

Twitter.configure do |config|
config.consumer_key = 's9J0L2Br1rutBCH3wBmnA'
config.consumer_secret = 'SNbrKPLRPOq8AAVXzUnwWv9OodO0iHMkYSXNa786qFs'
config.oauth_token ='1378905500-Xs9xbqSyzhtVCVUKYko1Zq1NXSz2ViHXCs0g4KA'
config.oauth_token_secret = 's9RAGElHJLIYNhTv0bwChBU4PcUHq2W9cQeWMSYt8'
end
@frend= Twitter.friends("shamshul2007")
fr=Array.new
@frend.each do |f|
fr.push(f.name)
end


#data insertion
puts "start saving"
@fri=Friend.new
@fri.username="shamshul2007"
@fri.friend=fr
@fri.save
puts "data saved"
end
share|improve this answer
 
mongodb array type is accepting the data now –  shamshul2007 Jun 3 '13 at 17:24
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