nodejs个人博客开发第五步 分配数据

/*** 首页控制器*/var router=express.Router();/*每页条数*/var pageSize=5;router.get('/',function(req,res,next){  var currentPage=parseInt(req.params.page);  var cid=0;    var categoryModel=F.model("category");  var articleModel=F.model("article");  // 分类数据  categoryModel.getAllList(function(err,categoryList){    // 文章条数    articleModel.getCount(cid,function(err,nums){      // 文章分页      articleModel.getArticlePager(cid,currentPage,pageSize,function(err,articleList){        var nextPage=(currentPage+1)>=Math.ceil(nums[0].num/pageSize) ? Math.ceil(nums[0].num/pageSize) : currentPage+1;        var prePage=(currentPage-1)<=0 ? 1 : currentPage-1;        // 归档        articleModel.getArchives(function(err,allArticleTime){          var newArticleTime=[];          for(var i=0;i<allArticleTime.length;i++){            newArticleTime.push(F.phpDate("y年m月",allArticleTime[i].time));          }          /*分配数据*/          var data={            categoryList:categoryList,            articleList:articleList,            cid:cid,            nextPage:nextPage==0 ? 1 : nextPage,            prePage:prePage,            allArticleTime:newArticleTime,            currentPage:currentPage          };                    /*渲染模板*/          res.render("home/index",data);          });            });    });  });    //F.model("category").addCate({"name":"测试"});  //F.model("category").saveCate({"name":"测试1"},"id=4");  //F.model("category").delCate("id=4");  /*渲染模板*/  //res.render("home/index");});module.exports=router;

/*** 文章模型文件*/module.exports={  /*获取条数*/  getCount:function(categoryId,callback){    var condition="";    if(categoryId!=0){      condition="where category_id="+categoryId;    }      var sql="select count(*) num from article "+condition;    db.query(sql,callback);  },  /*获取分页数据*/  getArticlePager:function(categoryId,currentPage,pageSize,callback){    if(currentPage<=0||!currentPage) currentPage=1;    var start=(currentPage-1)*pageSize;    var end=pageSize;    var condition="";    if(categoryId!=0){      condition="where category_id="+categoryId;    }    var sql="select * from article "+condition+" order by time desc limit "+start+","+end;    db.query(sql,callback);  },  /*归档*/  getArchives:function(callback){    db.query("select time from article order by time desc",callback);  }};