Real-time recommendation Section code

Import _ from ' Lodash ', import cfg from '. /cfg/cfg '; import {Response} from '. /shared/lib/response '; import {recdb} from '. /lib/mongo.js '; import {timed} from '. /utils/metrics '; let config = cfg.recommend.mongo;//gets the user's Watch movie card Let Getreadcards = Async (opts) + {opts = opts | |  {};  Let id = opts.id;  if (!id) {return {total:0, data: []};        Readcards = timed (' Personrec.readcards ', async () = {Let Doread = await Recdb.findone ({query: {    Id:opts.id}, Collection: ' label '});  return doread;  });  Let res = await readcards (); Let results = res?  Res.result:null; Results = Results | |  [];  Let videos = _.map (results, ' cards '); Return videos;};/ /get each card corresponding to the movie Let Getrealtimecardvideos = Async (opts) = {opts = opts | |  {};  Let cards = opts.cards;  if (!cards) {return {total:0, data: []}; } Let Read = Timed (' Personrec.realtimecardvideos ', async () + = {Let Doread = await Recdb.findone ({query: {Cards:opts.cards}, collection: ' Label1 '});  return doread;  });  Let res = await read (); res = res?   Res.result:null;  Console.log (Json.stringify (res)); res = Res | |  [];  Let videos = _.chain (res). ForEach ((val) = = {Val.type = ' realtimecard ';  }). value (); Return videos;};/ /Getuserprefer Get the video that the user has seen and dislike to watch userpreferlet Getuserprefer = Async (opts) + {opts = opts | |  {};  Let macId = Opts.macid;  Let reslist = [];  Let res = await recdb.read ({///query: {//Mac:macid//},//collection: ' Userprefer '//});        Let read = timed (' Personalrec.readuserprefervideos ', async () + = {Let Doread = await Recdb.read ({query: {    MAC:MACID}, Collection: ' Userprefer '});  return doread;  });  Let res = await read ();    _.foreach (Res, (val) + = {Let notlike = [];    let seen = [];    if (!val.isnotlike) {notlike = _.split (val.isnotlike, ': '); } if (!val.isseen) {seen = _.split (VAL.isseen, ': ');  } reslist = _.concat (Notlike, seen);  }); return reslist;}; Let Getuserrecords = Async (opts) = {opts = opts | |  {};  Let macId = Opts.macid;  if (!macid) {return {total:0, data: []}; }//Userrecord user's real-time record let ReadRecords = timed (' Personrec.readrecords ', async () + = Doread = await Recdb.fin    Done ({query: {mac:opts.macId}, collection: ' Temp '});  return doread;  });  Let res = await readrecords (); Let result = res?  Res.vv:null; result = Result | |  [];  Let videos = _.map (result, ' id '); Return videos;};/ /Get the user's offline three-month record let Getoldrecords = Async (opts) + {opts = opts | |  {};  Let macId = Opts.macid;  if (!macid) {return {total:0, data: []}; }//Oldrecord Let Readoldrecords = timed (' Personrec.readoldrecords ', async () = {Let Doread = await Recdb.findon    E ({query: {mac:opts.macId}, collection: ' Userrecord '});  return doread;  }); Let res = await readoldrecords (); Let record = res?  Res.result:null; Record = Record | |  [];  Let videos = _.map (record, ' id ');  return videos;}; Get online user referral data Let Getrealtimevideos = Async (opts) = {opts = opts | |  {};  Let videoid = opts.videoid;  if (!videoid) {return {total:0, data: []};        } Let Read = Timed (' Personrec.realtimevideos ', async () + = {Let Doread = await Recdb.findone ({query: {    VideoId:opts.videoId, Group:opts.group}, collection: ' Related '});  return doread;  });  Let res = await read (); res = res?   Res.result:null;  Console.log (Json.stringify (res)); res = Res | |  [];    Let videos = _.chain (res). ForEach ((val) = = {Val.group = Opts.group;  Val.type = ' realtime ';  }). value (); return videos;}; Let Getpersonalvideos = Async (opts) = {opts = opts | |  {};  Let page = Opts.page;  Let pageSize = opts.pagesize;  Let realtime = [];  Let Realtimecard = []; Let group = Opts.group | | ConfIg.defaultgroup;   Console.log (group+ ' 11111 ');  Gets the group corresponding collection let CollectionName = Config.groupmapping[group];  Console.log (CollectionName);  Let macId = Opts.macid;  if (!macid | |!collectionname) {return {total:0, data: []}; Readvideos = timed (' Personalrec.readpersonalvideos ', async () = {Let Doread = await Recdb.read ({query    : {mac:macid}, collection:collectionname});  return doread;  }); Let [Userprefers, res, record, oldrecord] = await promise.all ([Getuserprefer ({macId}), Readvideos (), Getuserreco  RDS ({macId}), Getoldrecords ({macId})]);  Console.log ('----------------');  Console.log (Oldrecord);  Console.log ('----------------'); Console.log (MacId, CollectionName, res) for (let video of the record) {//Console.log (VIDEO) Let append = await getre    Altimevideos ({videoid:video, group: ' B '});    Let Appendlabel = await getreadcards ({id:video}); Realtimecard = _.uniq (_.concat (Realtimecard, Appendlabel));    Console.log (json.stringify (append));  Realtime = _.concat (realtime, append);  }//Convert the acquired card into a movie let Cardvideos = [];    For (Let Labe of Realtimecard) {Let card = await Getrealtimecardvideos ({cards:labe});  Cardvideos = _.uniq (_.concat (Cardvideos, card), ' id ');  } console.log (Cardvideos);  Userprefers = _.concat (userprefers, record);     Let real = _.chain (realtime). Map (val) + = {Let temp = {id:val.id, group:val.group, Type:val.type    };    Console.log (json.stringify (temp));  return temp;  }). filter (val =!_.includes (userprefers, Val.id)). Value (); res = res?  Res.result:null; res = res?  Res[0].result:null;  Console.log (RES); res = res?  Res.split (', '): [];    Let videos = _.chain (res). Map (val) and {Let [id, weight] = val.split (': ');  return {ID, weight, Group, type: ' personal '}; }). filter (val =!_.includes (userprefers, Val.id)). Value ();//Console.log (JSON. Stringify (real));//videos = _.uniq (_.concat (real, videos), ' id ');  Videos = _.uniq (_.concat (Cardvideos, _.concat (real, videos)), ' id ');  Let start = (page-1) * pageSize;  Let end = page * PAGESIZE;  Let Returnvideos = _.slice (videos, start, end); return {total:videos.length, data:returnvideos};};  Let Realtimerechandler = Async (CTX) + = {Let query = Ctx.query;  Let page = Query.page; Let page = parseint (query.page, 10) | |  1; Let pageSize = parseint (query.pagesize, 10) | |  10;  Let macId = Query.macid;  Let group = Query.group;  Let res = await Getpersonalvideos ({page, pageSize, MacId, group});  Let PageCount = Math.ceil (res.total/pagesize);  return new Response ({data: {page, pageSize, PageCount, MacId, total:res.total, Videos: Res.data});}; Export {Realtimerechandler,};

　　

Real-time recommendation Section code