Hi everyone, I am getting an error when i try to add a select in a nested form The error no function clause matching in Keyword.pop/3 My select code: <div class="field"> <%= label f, :category, class: "label" %> <div class="control"> <%= select f, :category_id, @categories, fn cf -> %> …

I’m not really sure I understand why you need a nested form at all. :category_id is a field of the changeset. Nested forms are necessary when you are editing a value AND an associated (or embedded) value. Your form only messes with the top level changeset. Either way, select does not create a neste…

Please provide the full stack trace of the error, and it would probably help to link to the form within that code base.

https://github.com/wolfiton/blog_api/blob/master/lib/blog_api_web/templates/article/form.html.eex#L29 is the issue, it isn’t valid to pass a function to select.

OK so I use the nested without passing a fn then?

Thanks I will check it out Also to answer to you questions [image] benwilson512: I’m not really sure I understand why you need a nested form at all. :category_id is a field of the changeset. Nested forms are necessary when you are editing a value AND an associated (or embedded) value. Your for…

[image] wolfiton: I thought that this is the best way to achive what i wanted. But if it is not then please recommend a better way I have created this project to learn and understand phoenix. If what you want is to edit the category_id field, just treat it like the :title field. <%= select f…

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Select element in a nested form

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wolfiton December 21, 2019, 1:25pm 3

Thanks @benwilson512 for the suggestion I added more info.