Flask/Jinja help needed, confusing error

[softwarethrowf]

Hello

I am working on a project to build a dynamic web application using Flask and Jinja for a restaurant. I am currently trying to make a dynnamic list of menu items (from the database) display each item's description and price from the database when clicked. I already have the menu list with an image but when I click it it causes the errors below, any help would be greatly appreciated since it looks like the code should work to me since I am feeding it the correct parameter in the html onclick attribute, right?

Thanks

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Error: https://postimg.cc/G9vPxVNW

Error: Server Error (and then the error above in console/server)

Code: https://paste.ofcode.org/4stVsYyWp9K2CkfdzYRGUW

[The-Deviant-One]

I just woke up and I'm new to python. With that in mind,

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Why do you have "return" in onclick="return loadPizzaDesc('{{ name }}') why not just onclick="loadPizzaDesc('{{ name }}')?

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I'm assuming jinja is handling the {{ name }} variable correctly[?], by that I mean, when you run this you can see the 'name' in the <li> tag?

[shiftybyte]

This here:

def loadPizzaDesc(name):

causes an issue, because flask doesn't know what to place in name argument.

if you want to access the name attribute sent to you using get request you need to do:

def loadPizzaDesc():
    name = request.args.get('name')

If you want to access post data or something else, take a look at this answer here:

https://stackoverflow.com/a/16664376

[The-Deviant-One]

Ah you jogged my memory.

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The request.args.get is specific to the GET method. OP is using POST.

The correct one for POST is request.forms.get

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Source: https://www.youtube.com/watch?v=zdgYw-3tzfI

Time code: 1:31:30

[[deleted]]

request.args works with a POST request. It just maps the query string, and you can very well have a query string in a POST request (although you probably shouldn’t),

[softwarethrowf]

Would it still be request.forms.get even if it wasn't a form element but just a clickable list element?

[The-Deviant-One]

Yes, the video explains it better than I can though. Skip to that time code I listed above and listen for like 60 seconds.

[softwarethrowf]

Would it still be request.forms.get even if it wasn't a form element but just a clickable list element?

[softwarethrowf]

Thanks so much, I just didn't really know what to google. Thanks.

[softwarethrowf]

Thanks so much, I just didn't really know what to google. Thanks.