implement "promises bluebird"

[01speed1]

Hello, in the example it shows how to implement the code with callbacks but now that mongoose does not allow queries that way, I use the query so promise as says the documentation of "mongoose-promise" to work properly but I the following error:

I want to know how to write properly used promises
Error: express-paginate:pageCountis not a number >= 0 at C:\Users\Oscar\Desktop\OCT\node_modules\express-paginate\index.js:65:13 at C:\Users\Oscar\Desktop\OCT\App\Routes\admin-profesores.js:29:46 at tryCatcher (C:\Users\Oscar\Desktop\OCT\node_modules\mongoose-paginate\node_modules\bluebird\js\release\util.js:11:23) at Promise._settlePromiseFromHandler (C:\Users\Oscar\Desktop\OCT\node_modules\mongoose-paginate\node_modules\bluebird\js\release\promise.js:488:31) at Promise._settlePromise (C:\Users\Oscar\Desktop\OCT\node_modules\mongoose-paginate\node_modules\bluebird\js\release\promise.js:545:18) at Promise._settlePromise0 (C:\Users\Oscar\Desktop\OCT\node_modules\mongoose-paginate\node_modules\bluebird\js\release\promise.js:590:10) at Promise._settlePromises (C:\Users\Oscar\Desktop\OCT\node_modules\mongoose-paginate\node_modules\bluebird\js\release\promise.js:673:18) at Promise._fulfill (C:\Users\Oscar\Desktop\OCT\node_modules\mongoose-paginate\node_modules\bluebird\js\release\promise.js:614:18) at Promise._resolveCallback (C:\Users\Oscar\Desktop\OCT\node_modules\mongoose-paginate\node_modules\bluebird\js\release\promise.js:415:57) at Promise._settlePromiseFromHandler (C:\Users\Oscar\Desktop\OCT\node_modules\mongoose-paginate\node_modules\bluebird\js\release\promise.js:501:17) at Promise._settlePromise (C:\Users\Oscar\Desktop\OCT\node_modules\mongoose-paginate\node_modules\bluebird\js\release\promise.js:545:18) at Promise._settlePromise0 (C:\Users\Oscar\Desktop\OCT\node_modules\mongoose-paginate\node_modules\bluebird\js\release\promise.js:590:10) at Promise._settlePromises (C:\Users\Oscar\Desktop\OCT\node_modules\mongoose-paginate\node_modules\bluebird\js\release\promise.js:673:18) at Promise._fulfill (C:\Users\Oscar\Desktop\OCT\node_modules\mongoose-paginate\node_modules\bluebird\js\release\promise.js:614:18) at PropertiesPromiseArray.PromiseArray._resolve (C:\Users\Oscar\Desktop\OCT\node_modules\mongoose-paginate\node_modules\bluebird\js\release\promise_array.js:125:19) at PropertiesPromiseArray._promiseFulfilled (C:\Users\Oscar\Desktop\OCT\node_modules\mongoose-paginate\node_modules\bluebird\js\release\props.js:78:14) at Promise._settlePromise (C:\Users\Oscar\Desktop\OCT\node_modules\mongoose-paginate\node_modules\bluebird\js\release\promise.js:550:26) at Promise._settlePromise0 (C:\Users\Oscar\Desktop\OCT\node_modules\mongoose-paginate\node_modules\bluebird\js\release\promise.js:590:10) at Promise._settlePromises (C:\Users\Oscar\Desktop\OCT\node_modules\mongoose-paginate\node_modules\bluebird\js\release\promise.js:673:18) at Async._drainQueue (C:\Users\Oscar\Desktop\OCT\node_modules\mongoose-paginate\node_modules\bluebird\js\release\async.js:125:16) at Async._drainQueues (C:\Users\Oscar\Desktop\OCT\node_modules\mongoose-paginate\node_modules\bluebird\js\release\async.js:135:10) at Immediate.Async.drainQueues [as _onImmediate] (C:\Users\Oscar\Desktop\OCT\node_modules\mongoose-paginate\node_modules\bluebird\js\release\async.js:16:14) at processImmediate [as _immediateCallback] (timers.js:383:17)

Here my code that returns the error

`router.route("/")
.get(function (sol, res, next) {
locals={
tipoDeUsuairo: "Profesor",
title: "Profesores",
page_title: "Panel de Profesores"};

        //codigo con paginacion
        Profesor.paginate({tipo:"PROFESOR"}, {page: sol.query.page, limit: sol.query.limit})
            .then(function (profes, pageCount, itemCount) {
            locals.profes = profes.docs;
            locals.pageCount =  pageCount;
            locals.itemCount = itemCount;
            locals.page = paginate.getArrayPages(sol)(3, pageCount, sol.query.page);
            res.render("Admin/Profesores/index", locals);
        }).catch(function (err) {
            //res.json(err);
            if (err) return next(err);
        })

    })`

[rajivnarayana]

I am not sure if you are suggesting that this is a bug. Please report on stackoverflow if you need help with how mongoose-paginate works.

Anyway, from mongoose-paginate documentation, following seems to be the correct way to use getArrayPages

Profesor.paginate({tipo:"PROFESOR"}, {page: sol.query.page, limit: sol.query.limit})
  .then(function (result) {
    locals.profes = result.docs;
    locals.pageCount =  result.pages;
    locals.itemCount = result.total;
    locals.page = paginate.getArrayPages(sol)(3, result.pages, sol.query.page);
    res.render("Admin/Profesores/index", locals);
  });

[niftylettuce]

PR welcome if it is a bug