Help me!

[Ronaldo Mata]

Hello! I would like you to help me implement a filter form, I put them in cotexts:

Example:
I have a website about cars, I created my Car model with attributes such as:
- colour
- make
- model
- price

Now I want to find a way to make a filtering using a form, the case is that the form will have three input type drop-down, [make, model, price], when the user selects a make the model input must display only the models available for that make, how to achieve that?

Is it necessary to implement a Make and Model model and associate them with Car by a foreign key?

[DANIEL URBANO DE LA RUA]

If you use the same name for three values you will have a array on the get or post then you have to no the order

And for the filter use filters from your model to get the right car if that what you need ;)

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[Ronaldo Mata]

I am basic in web development, but I would like to generate something like here:
https://www.cargurus.com/

When I select a make, the options for the model are automatically updated, that is, when I select a make, the model input only shows the models associated with that make.

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[Ronaldo Mata]

I think they do that using ajax, but I would like to know how to do it in the best way, and if it is necessary to create additional models for make and model, and relate them to Car

[Ronaldo Mata]

Thx Daniel