https://github.com/lloydzhou/luajit-mongo

mongo driver by using ffi, based on mongo-c-driver 1.0 or above
https://github.com/lloydzhou/luajit-mongo

Last synced: 27 days ago
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mongo driver by using ffi, based on mongo-c-driver 1.0 or above

• Host: GitHub
• URL: https://github.com/lloydzhou/luajit-mongo
• Owner: lloydzhou
• Created: 2014-11-12T06:12:41.000Z (about 10 years ago)
• Default Branch: master
• Last Pushed: 2015-04-20T07:55:01.000Z (over 9 years ago)
• Last Synced: 2024-11-25T01:11:09.400Z (about 1 month ago)
• Language: Lua
• Homepage:
• Size: 254 KB
• Stars: 7
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
luajit-mongo

============

mongo driver by using ffi, based on mongo-c-driver 1.0 or above

using for nginx

============

init the mongodb connection, it can using in every location.

    init_by_lua '

           mongo  = require "mongo"

           c = mongo.client("mongodb://127.0.0.1:27017")

    ';

define location, need another lua module [router](https://github.com/lloydzhou/router.lua).

    location /mongo {

       default_type application/json;

       content_by_lua '

           local router = require "router"

           local r = router.new()

    

           r:get("/mongo/:db/:coll", function(p)

               ngx.print(c[p.db][p.coll].find(mongo.bson(), mongo.bson(), 0, 20).data().to_json())

           end)

    

           if r:execute(

               string.lower(ngx.req.get_method()),

               ngx.var.request_uri,

               ngx.req.get_uri_args()

           ) then

               ngx.status = 200

           else

               ngx.status = 404

               ngx.print("{\"error\": true, \"message\": \"Not found!\"}")

           end

    

           ngx.eof()

       ';

    }

test

===========

    local ffi = require "ffi"

    local print = require("utils").prettyPrint

    local mongo = require "mongo"

    local bson = mongo.bson

    local oid = mongo.oid

    local client = mongo.client

    local client_pool = mongo.client_pool

    

    -- create one object id

    o = oid("")

    print (o)

    print (o.to_json())

    

    -- init obejct id by string

    o = oid("542a5b2069401b2edfb132a5")

    print (o)

    print (o.to_json())

    

    -- init object id by using json string

    o = oid('{"$oid": "542a5b2069401b2edfb132a5"}')

    print (o)

    print (o.to_json())

    

    -- init bson object by using json string

    b = bson('{"BSON":["awesome",5.05,1986]}')

    print (#b)

    print (b.to_json())

    print(b)

    

    -- init bson object by using lua table

    b = bson({BSON = {"awesome",5.05,1986}})

    print (#b)

    print (b.to_json())

    print(b)

    

    -- init one empty bson object

    print (bson())

    

    n = bson('{"hello": "world"}')

    print (#n)

    print (n.to_json())

    print(n)

    

    n = bson({["$hello"] = "world"})

    print (#n)

    print (n.to_json())

    print(n)

    

    

    n = bson({hello = {["$regex"] = "world"}})

    print (#n)

    print (n.to_json())

    print(n.get_data())

    print(tostring(n))

    

    

    -- connect mongodb by using uri string.

    --c = client('mongodb://127.0.0.1:27017/')

    

    -- using connection pool.

    p = client_pool('mongodb://127.0.0.1:27017/?minPoolSize=10')

    

    -- get one connection from pool

    c = p.pop()

    -- get one database object

    d = c.test

    -- get one collection object

    col = d.test

    print (col.name())

    

    -- test for insert

    r, e = col.insert({["$name"] = "testname"})

    print ("insert", r, e)

    

    query = {name = "testname1"}

    r, e = col.insert(query)

    print ("insert", r, e)

    

    -- test for query data from database

    cursor = col.find(query)

    -- cursor.data() return the results in bson format. will output in json by call "__tostring" function of bson object.

    print ("find", cursor.data())

    -- test delete data

    r, e = col.delete(query)

    print ("delete", r, e)

    

    cursor = col.find(query)

    print ("find", cursor.data())

    

    -- test update function

    query1 = {name = "testname"}

    r, e = col.update(query, {["$set"] = query1})

    print ("update", r, e)

    

    -- test the "next" function of cursor object.

    cursor = col.find(query1)

    local p = ffi.new ("const bson_t *[1]")

    while cursor.next(p) do

        print (p[0].to_table())

    end

    

    print (d.cmd({count = "test"}).data())

    print (col.cmd({count = "test"}).data())

    print (c.test["system.indexes"].find().data())