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POkeep getting "TypeError: Cannot read property 'publicUsername' of null" error
 

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  1. POkeep getting "TypeError: Cannot read property 'publicUsername' of null" error
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    <p>hey guys i have a function that validate a form before submitting into the database,however one of the field need to be unique so i have to send the data back to database to do comparison and if there's an error it will indicate user, else it will save the data into database. but i keep getting "TypeError: Cannot read property 'publicUsername' of null" and i don't know why </p> <h3> my code </h3> <pre><code> this.handleSignup = function(req, res, next) { "use strict"; var validate = validateSignup(req.body, function(error, data) { if(error) { res.send(400, error.message); } }); if(validate){ users.addUser(data, function(err, user) { sessions.startSession(data, function(err, session_id) { "use strict"; if (err) return next(err); res.cookie('session', session_id); res.send(200); }); }); } } </code></pre> <h3> validateSignup</h3> <pre><code>function validateSignup(data,callback) { "use strict"; users.checkPublicUsername(data.publicUsername, function(err, result){ if(result){ callback(new Error('Public Username is taken Please choose another'), null); } }); </code></pre> <h3>checkPublicUsername</h3> <pre><code> this.checkPublicUsername = function(data,callback) { var publicUsername = { "publicUsername":data } users.findOne(publicUsername, function(err, result) { if(result.publicUsername === data){//terminal show this line is the error callback(null,true); // if match return true to trigger indicator }else{ callback(null,false); // else return false to proceed } }) } </code></pre>
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    1. PO
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      1. PTAnswer
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    1. PTQuestion
    1. USJohn Lim
    1. USJohn Lim
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    1. PO
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      1. PTAnswer
    1. VO
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      1. POkeep getting "TypeError: Cannot read property 'publicUsername' of null" error
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
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      1. POkeep getting "TypeError: Cannot read property 'publicUsername' of null" error
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      1. VTDownMod
    3. VO
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      1. POkeep getting "TypeError: Cannot read property 'publicUsername' of null" error
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      1. VTDownMod
    1. COThe error is supposed to give you the exact file and line number. What else do you need?
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      1. POkeep getting "TypeError: Cannot read property 'publicUsername' of null" error
      1. USvkurchatkin
    2. COyea i know , but i don't get it why i keep getting it
      singulars
      1. POkeep getting "TypeError: Cannot read property 'publicUsername' of null" error
      1. USJohn Lim
    3. COWhat is the function user.findOne? because the result being passed into the callback is null.
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      1. POkeep getting "TypeError: Cannot read property 'publicUsername' of null" error
      1. USTheThirdOne
 

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