(Web development)there is an error coming when I click the first "BUY NOW" button. Error is at the comments. It is my first gist

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I am making my first project that is an e-commerce site with basic functionality.
When i click the first "BUT NOW" button I get an error. I have only programmed first button as a demo.
I am attaching a gist link and error is written in the comments section of gist.

https://gist.github.com/bisswolf/1e5212ec6c85ec33a61e87c0bf86af0e

What I have tried:

When i remove the "BUY NOW" button code it works fine but after writing code it doesn't work

Posted 5-Aug-20 0:18am

divyanshu dalewani

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Comments

CHill60 5-Aug-20 8:05am

It is bad form to store your code on another site and expect us to go to that site to understand your problem. There is reams of code. Just post here the code that causes the problem and tell us what the error is

OriginalGriff 5-Aug-20 9:08am

I'm not going to look at a whole project to try and work out where the relevant code is, or what might be wrong with it.

Instead, copy and paste your error info (message, stack trace, the whole thing) and then show us just the relevant fragments, indicating where the error occurs.
Then tell us what exactly you did (including data if it's involved at all) to cause the error, and what you have tried to find out what the problem is.

Help us to help you!

Use the "Improve question" widget to edit your question and provide better information.

divyanshu dalewani 5-Aug-20 9:26am

The error is -
CastError: Cast to ObjectId failed for value "frontpage.css" at path "_id" for model "fashion"
at model.Query.exec (C:\Users\divya\Desktop\Dynamic web\node_modules\mongoose\lib\query.js:4351:21)
at model.Query.Query.findOne (C:\Users\divya\Desktop\Dynamic web\node_modules\mongoose\lib\query.js:2220:8)
at Function.findOne (C:\Users\divya\Desktop\Dynamic web\node_modules\mongoose\lib\model.js:2152:13)
at Function.findById (C:\Users\divya\Desktop\Dynamic web\node_modules\mongoose\lib\model.js:2090:15)
at C:\Users\divya\Desktop\Dynamic web\app.js:48:10
at Layer.handle [as handle_request] (C:\Users\divya\Desktop\Dynamic web\node_modules\express\lib\router\layer.js:95:5)
at next (C:\Users\divya\Desktop\Dynamic web\node_modules\express\lib\router\route.js:137:13)
at Route.dispatch (C:\Users\divya\Desktop\Dynamic web\node_modules\express\lib\router\route.js:112:3)
at Layer.handle [as handle_request] (C:\Users\divya\Desktop\Dynamic web\node_modules\express\lib\router\layer.js:95:5)
at C:\Users\divya\Desktop\Dynamic web\node_modules\express\lib\router\index.js:281:22
at param (C:\Users\divya\Desktop\Dynamic web\node_modules\express\lib\router\index.js:354:14)
at param (C:\Users\divya\Desktop\Dynamic web\node_modules\express\lib\router\index.js:365:14)
at Function.process_params (C:\Users\divya\Desktop\Dynamic web\node_modules\express\lib\router\index.js:410:3)
at next (C:\Users\divya\Desktop\Dynamic web\node_modules\express\lib\router\index.js:275:10)
at urlencodedParser (C:\Users\divya\Desktop\Dynamic web\node_modules\body-parser\lib\types\urlencoded.js:91:7)
at Layer.handle [as handle_request] (C:\Users\divya\Desktop\Dynamic web\node_modules\express\lib\router\layer.js:95:5) {
messageFormat: undefined,
stringValue: '"frontpage.css"',
kind: 'ObjectId',
value: 'frontpage.css',
path: '_id',
reason: Error: Argument passed in must be a single String of 12 bytes or a string of 24 hex characters
at new ObjectID (C:\Users\divya\Desktop\Dynamic web\node_modules\bson\lib\bson\objectid.js:59:11)
at castObjectId (C:\Users\divya\Desktop\Dynamic web\node_modules\mongoose\lib\cast\objectid.js:25:12)
at ObjectId.cast (C:\Users\divya\Desktop\Dynamic web\node_modules\mongoose\lib\schema\objectid.js:267:12)
at ObjectId.SchemaType.applySetters (C:\Users\divya\Desktop\Dynamic web\node_modules\mongoose\lib\schematype.js:1070:12)
at ObjectId.SchemaType._castForQuery (C:\Users\divya\Desktop\Dynamic web\node_modules\mongoose\lib\schematype.js:1498:15)
at ObjectId.SchemaType.castForQuery (C:\Users\divya\Desktop\Dynamic web\node_modules\mongoose\lib\schematype.js:1488:15)
at ObjectId.SchemaType.castForQueryWrapper (C:\Users\divya\Desktop\Dynamic web\node_modules\mongoose\lib\schematype.js:1467:15)
at cast (C:\Users\divya\Desktop\Dynamic web\node_modules\mongoose\lib\cast.js:326:32)
at model.Query.Query.cast (C:\Users\divya\Desktop\Dynamic web\node_modules\mongoose\lib\query.js:4740:12)
at model.Query.Query._castConditions (C:\Users\divya\Desktop\Dynamic web\node_modules\mongoose\lib\query.js:1865:10)
at model.Query. (C:\Users\divya\Desktop\Dynamic web\node_modules\mongoose\lib\query.js:2122:8)
at model.Query._wrappedThunk [as _findOne] (C:\Users\divya\Desktop\Dynamic web\node_modules\mongoose\lib\helpers\query\wrapThunk.js:16:8)
at C:\Users\divya\Desktop\Dynamic web\node_modules\kareem\index.js:369:33
at processTicksAndRejections (internal/process/task_queues.js:79:11)
}

OriginalGriff 5-Aug-20 9:59am

Read what I said again ...

divyanshu dalewani 7-Aug-20 10:55am

This line is causing trouble -

app.get("/show/:id", function (req, res) {
fashion.findById(req.params.id, function (err, data) {
if (err) {
console.log(req.params.id);
} else {
res.render("show.ejs", { showw: data });
}
});
});

divyanshu dalewani 7-Aug-20 10:58am

And there is cast error
req.params.id is having the error
It show have an id but after i console.log(id)
it is showing frontpage.css
I am having trouble in assigning an id
and why is it showing frontpage.css ?
I don't have any file with such name

divyanshu dalewani 5-Aug-20 9:28am

When i click "BUY NOW" button i want a new page to open with the product's picture and information

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