39 lines
1.2 KiB
Ruby
39 lines
1.2 KiB
Ruby
require File.dirname(__FILE__) + '/../../couchrest'
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couch = CouchRest.new("http://localhost:5984")
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db = couch.database('word-count-example')
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puts "Now that we've parsed all those books into CouchDB, the queries we can run are incredibly flexible."
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puts "\nThe simplest query we can run is the total word count for all words in all documents:"
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puts db.view('word_count/count').inspect
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puts "\nWe can also narrow the query down to just one word, across all documents. Here is the count for 'flight' in all three books:"
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word = 'flight'
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params = {
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:startkey => [word],
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:endkey => [word,'Z']
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}
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puts db.view('word_count/count',params).inspect
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puts "\nWe scope the query using startkey and endkey params to take advantage of CouchDB's collation ordering. Here are the params for the last query:"
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puts params.inspect
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puts "\nWe can also count words on a per-title basis."
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title = 'da-vinci'
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params = {
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:key => [word, title]
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}
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puts db.view('word_count/count',params).inspect
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puts "\nHere are the params for 'flight' in the da-vinci book:"
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puts params.inspect
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puts
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puts 'The url looks like this:'
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puts 'http://localhost:5984/word-count-example/_view/word_count/count?key=["flight","da-vinci"]'
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puts "\nTry dropping that in your browser..." |