59 lines
1.3 KiB
R
59 lines
1.3 KiB
R
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ensure_pkgs = function(){
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if (!'data.table' %in% installed.packages()){
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install.packages('data.table')
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}
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if (!'rmongodb' %in% installed.packages()){
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install.packages('rmongodb')
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}
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require(data.table)
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require(rmongodb)
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return(1)
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}
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get_connection = function(){
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client = mongo.create()
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return(client)
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}
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get_dbs = function(){
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client = mongo.create()
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if(mongo.is.connected(client) == TRUE) {
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dbs = mongo.get.databases(client)
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}
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return(dbs)
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}
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get_colls = function(db){
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client = mongo.create()
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if(mongo.is.connected(client) == TRUE) {
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colls = mongo.get.database.collections(client, db)
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}
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return(colls)
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}
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view_doc = function(coll, one=1){
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client = mongo.create()
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if(mongo.is.connected(client) == TRUE) {
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if(one==1){
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doc = mongo.find.one(client, coll)
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}
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else{
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doc = mongo.find.all(client, coll)
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}
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}
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return(doc)
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}
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fetch = function(coll, start, end){
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client = mongo.create()
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if(mongo.is.connected(client) == TRUE) {
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docs = mongo.find.all(client, coll,
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query = list(
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'date'=list('lte'=end),
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'date'=list('gte'=start)
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))
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}
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return(docs)
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}
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