couchrest_model/lib/couch_rest.rb

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class CouchRest
attr_accessor :uri, :uuid_batch_count
def initialize server = 'http://localhost:5984', uuid_batch_count = 1000
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@uri = server
@uuid_batch_count = uuid_batch_count
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end
# ensure that a database exists
# creates it if it isn't already there
# returns it after it's been created
def self.database! url
uri = URI.parse url
path = uri.path
uri.path = ''
cr = CouchRest.new(uri.to_s)
cr.database!(path)
end
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def self.database url
uri = URI.parse url
path = uri.path
uri.path = ''
cr = CouchRest.new(uri.to_s)
cr.database(path)
end
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# list all databases on the server
def databases
CouchRest.get "#{@uri}/_all_dbs"
end
def database name
CouchRest::Database.new(self, name)
end
# creates the database if it doesn't exist
def database! name
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create_db(path) rescue nil
database name
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end
# get the welcome message
def info
CouchRest.get "#{@uri}/"
end
# create a database
def create_db name
CouchRest.put "#{@uri}/#{name}"
database name
end
# restart the couchdb instance
def restart!
CouchRest.post "#{@uri}/_restart"
end
def next_uuid count = @uuid_batch_count
@uuids ||= []
if @uuids.empty?
@uuids = CouchRest.post("#{@uri}/_uuids?count=#{count}")["uuids"]
end
@uuids.pop
end
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class << self
def put uri, doc = nil
payload = doc.to_json if doc
JSON.parse(RestClient.put(uri, payload))
end
def get uri
JSON.parse(RestClient.get(uri), :max_nesting => false)
end
def post uri, doc = nil
payload = doc.to_json if doc
JSON.parse(RestClient.post(uri, payload))
end
def delete uri
JSON.parse(RestClient.delete(uri))
end
def paramify_url url, params = nil
if params
query = params.collect do |k,v|
v = v.to_json if %w{key startkey endkey}.include?(k.to_s)
"#{k}=#{CGI.escape(v.to_s)}"
end.join("&")
url = "#{url}?#{query}"
end
url
end
end
end