meteor - MeteorJS Blaze.getData() occasionally returns undefined -


i'm rendering bootstrap modals on webpage using meteorjs's "renderwithdata" method load each template when it's needed.

i'm running issue helper methods access data in modal using "blaze.getdata()" return undefined , i'm unsure how fix that.

the way i've been able replicate issue creating/destroying modals , there doesn't seem causes issue.

here steps i've been taking:

1) instantiate modal proper data

template.courses.events({ 'click .share-course': function (e,t) {     var courseid = $(e.target).data('courseid');      template.instance().activecourse.set(         createmodalwithdata(             {                 currentinstance: template.instance().activecourse.get(),                 template: template.enrollment_generator,                 datatorender: {courseid: courseid}             }         ));      $('#generateenrollmenturl').modal('show'); } });

also, here code "createmodalwithdata":

// create modal specific data context // if modal template exists, destroy // , re-create new data context. // if location render isn't specified, renders // content in body . // parameters: [object] data { currentinstance : template || null, //                             template        : template, //                             datatorender    : object, //                  (optional) location        : element // return: blaze template instance createmodalwithdata = function createmodalwithdata(data) {      // ensure data exists     if (_.isundefined(data) || _.isnull(data)) {         throw "data cannot null or undefined";     }      // if modal exists, destroy     if (!_.isnull(data.currentinstance)) {         blaze.remove(data.currentinstance);     }      // if location undefined, set page body     if (_.isundefined(data.location)) {         data.location = document.body;     }      // render modal datatorender     return blaze.renderwithdata(data.template,         data.datatorender,         data.location     ); };

2) attempt retrieve data using "blaze.getdata()" within modal template 

template.enrollment_generator.oncreated(function() {     var courseid = blaze.getdata().courseid; // undefined      meteor.subscribe('enrollment-codes',courseid); });

so far i've attempted replace "oncreated" method "onrendered" still had same issue.

it turns out issue within click event. had nested span element within share-course button:

<small class="share-course" data-courseid="{{_id}}">      share      <span class="glyphicon glyphicon-share"></span> </small>

this messing way targeting embedded courseid

instead of blaze.getdata(), should have been using template.currentdata() retrieve data within template

as stated here: https://forums.meteor.com/t/blaze-getdata-question/5688


Comments

Post a Comment

Popular posts from this blog

c# - Validate object ID from GET to POST -

i have method allows user access comment have made on site. have post method lets them update comment. my normal solution send entire comment model through, let them update it, update on database when post back. involve sending commentid through in hiddenfor , can manipulated. how can verify commentid sent in get method same i'm getting in post , not able alter comment wish? how can verify commentid sent in method same i'm getting in post? basically have validate following things in post - user logged-in user. authenticated users post comments. commentid in post , should valid commentid , should present in database. userid associated logged-in user should same userid associated comment . comment should contain userid column, can check @ time of update. to make sure update happens comment has been sent in get - hold commentid in session , in post action compare commentid value in session .
Read more

node.js - Custom Model Validator SailsJS -

when using custom model validator checks record within model. return within spread doesn't seem end control flow. //post.js model /** * custom validator **/ types: { isuservalid: function(user_id) { var promise = require('bluebird'); promise.all([ user.findone({id: user_id}) ]) .spread(function(user) { console.log(user); if (user === null || user === undefined) { console.log('failed'); return false; }else{ console.log('passed'); return true; } }); } }, my response standard validation failed response. { "error": "e_validation", "status": 400, "summary": "1 attribute invalid", "model": "post", "invalidattributes": { "owner": [ { "rule": "isuservalid", ...
Read more

php - Find a regex to take part of Email -

i have following emails need extract part from: bestellnummer xxx: 1 von xxx, 1er pack ------------- anfang der nachricht ------------- foo bar baz foo bar baz // <<<<< need text here ------------- ende der nachricht ------------- ------------- anfang der nachricht ------------- foo bar baz foo bar baz ------------- ende der nachricht ------------- there 0 unlimited occurences of ------------- anfang der nachricht ------------- ------------- ende der nachricht ------------- and i'm able extract first part regex: $re = "/------------- .*? -------------.?(.*?).?------------- .*? -------------/s"; but, i'm quite new on learning regex, i'm pretty sure there must better regex extract part (foo bar baz foo bar baz) of text between ------------- anfang der nachricht ------------- ------------- ende der nachricht ------------- as can in different languages, i'm using .? to match between hyphens. i...
Read more