Question

我正在使用 express-paginate 和 mongoose-paginate

文件结构是 express-generator

我有所有插件的最新版本

示例来自： https://github.com/expressjs/express-paginate#example

每次都会在

发生此错误

pages: paginate.getArrayPages(req)(3, pageCount, req.query.page)

我的代码就像

pages: res.locals.paginate.getArrayPages(req)(3, categories.pages, 1)

当我评论这一行时页面呈现成功，但我之后无法创建链接

路由/ category.js

function getAllRecords(req , res , next){
    console.log("getAllRecords");
    var Category = res.categoryModel ; // models/categoryModel.js
     Category.paginate({}, { page: req.query.page, limit: req.query.limit }, function(err, categories) {
 if (err) throw err;
res.format({
            html: function() {
                res.render('category/admin', {
                models: categories.docs,
                'res':res,
                pageCount: categories.pages,
                itemCount: categories.total,
                pages: res.locals.paginate.getArrayPages(req)(3, categories.pages, 1)
                });
            },
            json: function() {
                // inspired by Stripe's API response for list objects
                res.json({
                object: 'list',
                has_more: res.locals.paginate.hasNextPages(req)(categories.pages),
                data: categories.docs
                });
            }
        });

    });


}

app.js

ar app = express();
// keep this before all routes that will use pagination
app.use(paginate.middleware(10, 50));
/***** Models ********/
var categoryModel = require('./models/categoryModel');
var modelsInsideCategoryController = {'categoryModel':categoryModel};
var category = require('./routes/category')(modelsInsideCategoryController);
app.use('/category', category);

模型/ categoryModel.js

// grab the things we need
var mongoose = require('mongoose');
var mongoosePaginate = require('mongoose-paginate');
var Schema = mongoose.Schema;
// create a schema
var categorySchema = new Schema({
  name: {type:String,required:true},
  created_at: Date,
  updated_at: Date
});
categorySchema.plugin(mongoosePaginate);
var Category = mongoose.model('Category', categorySchema);
make this available to our users in our Node applications
module.exports = Category;

Answer 1

虽然paginate.getArrayPages()需要req作为参数并返回一个函数，但当您使用res.locals.paginate.getArrayPages()时，req已经通过（here）并且您不应该不能自己通过。

试试这个：

pages : res.locals.paginate.getArrayPages(3, categories.pages, 1)

同样适用于hasNextPages()：

 has_more : res.locals.paginate.hasNextPages(categories.pages)

错误：express-paginate：`limit`不是数字＆gt; = 0

1 个答案: