"Message contains no documents" when trying to insert into Mongodb
I am creating a Ruby on Rails application that uses mongod stone to store data through Mongodb.
My problem comes from this task:
require 'rubygems'
require 'nokogiri'
require 'open-uri'
task :scrape => :environment do
page = Nokogiri::HTML(open('https://maps.google.com/maps/ms?ie=UTF8&hl=en&source=embed&dg=feature&authuser=0&msa=0&output=kml&msid=208523333872813891131.0004c02beb4f2788337d0'))
page.css("coordinates").each do |coords|
coords = coords.text.split("\n")
coords.each do |coord|
array = coord.strip.split(',')
array[0] = array[0].to_f
array[1] = array[1].to_f
if (array[0] != 0 && array[1] !=0)
puts array[0]
puts array[1]
s = Submission.new(array[0], array[1], "Calfire", nil)
s.insert
end
end
end
end
s.insert
tries to remove information from url, instantiate Submission
and then insert it into Mongodb database. Every time I run rake scrape
in terminal, I get the following error when trying to save Submission
to database.
-122.952888
40.741924
rake aborted!
Moped::Errors::OperationFailure: The operation: #<Moped::Protocol::Command
@length=83
@request_id=3
@response_to=0
@op_code=2004
@flags=[]
@full_collection_name="fireapp_development.$cmd"
@skip=0
@limit=-1
@selector={:getlasterror=>1, :w=>1}
@fields=nil>
failed with error 13066: "Message contains no documents"
I'm new to both Ruby and Mongodb, so if any other code is helpful he should be able to update this post. I tried setting up a new app / scaffolding to see if I could fix this, but nothing changed. I also tried to just save the instance Submission
via terminal, but that didn't work either.
When I was looking for a solution, I came across this discussion: https://groups.google.com/forum/#!topic/mongodb-user/kg-wK56_JkQ
This suggests that I may not be asking for anything, but the lines puts
in the Ruby code are clearly being output to the terminal. Any help is appreciated.
EDIT 1:
Model fields Submission
class Submission
include Mongoid::Document
field :lat, type: Float
field :long, type: Float
field :image, type: Moped::BSON::Binary
field :category, type: String
end
EDIT 2:
The problems were corrected by correct formatting of the string s.create
, as well as removing the string s.insert
.
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Standard usage Model.create(attributes)
, you should only do:
s = Submission.create(:lat => array[0], :long => array[1], :category => 'Calfire')
# No Submission.new, no s.insert, just create and check s.valid? or use create!
I suspect I Submission.new
really don't know what to do with all of these positional arguments, so you're probably some kind of confused nonsense in s
. The supposed one Submission.new
tries to interpret the arguments and fails silently.
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