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local setmetatable = setmetatable; |
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local pcall = pcall; |
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local type = type; |
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local t_concat = table.concat; |
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local print = print; |
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local socket_url = require "socket.url"; |
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local http = require "socket.http"; |
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local ltn12 = require "ltn12"; |
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--local json = require "json"; |
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local json = module:require("couchdb/json"); |
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--module("couchdb") |
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local _M = {}; |
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local function urlcat(url, path) |
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return url:gsub("/*$", "").."/"..path:gsub("^/*", ""); |
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end |
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local doc_mt = {}; |
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doc_mt.__index = doc_mt; |
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function doc_mt:get() |
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return self.db:get(socket_url.escape(self.id)); |
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end |
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function doc_mt:put(val) |
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return self.db:put(socket_url.escape(self.id), val); |
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end |
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function doc_mt:__tostring() |
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return "couchdb.doc("..self.url..")"; |
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end |
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local db_mt = {}; |
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db_mt.__index = db_mt; |
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function db_mt:__tostring() |
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return "couchdb.db("..self.url..")"; |
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end |
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function db_mt:doc(id) |
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local url = urlcat(self.url, socket_url.escape(id)); |
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return setmetatable({ url = url, db = self, id = id }, doc_mt); |
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end |
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function db_mt:get(id) |
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local url = urlcat(self.url, id); |
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local a,b = http.request(url); |
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local r,x = pcall(json.decode, a); |
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if r then a = x; end |
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return a,b; |
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end |
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function db_mt:put(id, value) |
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local url = urlcat(self.url, id); |
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if type(value) == "table" then |
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value = json.encode(value); |
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elseif value ~= nil and type(value) ~= "string" then |
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return nil, "Invalid type"; |
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end |
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local t = {}; |
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local a,b = http.request { |
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url = url, |
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sink = ltn12.sink.table(t), |
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source = ltn12.source.string(value), |
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method = "PUT", |
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headers = { |
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["Content-Length"] = #value, |
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["Content-Type"] = "application/json" |
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} |
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}; |
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a = t_concat(t); |
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local r,x = pcall(json.decode, a); |
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if r then a = x; end |
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return a,b; |
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end |
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local server_mt = {}; |
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server_mt.__index = server_mt; |
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function server_mt:db(name) |
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local url = urlcat(self.url, socket_url.escape(name)); |
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return setmetatable({ url = url }, db_mt); |
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end |
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function server_mt:__tostring() |
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return "couchdb.server("..self.url..")"; |
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end |
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function _M.server(url) |
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return setmetatable({ url = url }, server_mt); |
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end |
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function _M.db(url) |
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return setmetatable({ url = url }, db_mt); |
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end |
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return _M; |