Phoenix 1.7: The Deprecation of form_for

2023/09/01
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The article discusses the deprecation of the form_for helper in Phoenix 1.7 and introduces the form function component as its replacement. The author highlights the helpfulness and approachability of the Elixir and Phoenix communities, mentioning that Phoenix's creator, Chris McCord, confirmed the deprecation of form_for. The article explains the changes in Phoenix 1.7, where the view_helpers/0 function was replaced with html_helpers/0, resulting in the need to import Phoenix.HTML.Form if developers still want to use form_for. However, the recommended approach is to use the form/1 function component, which takes a map, changeset, or Phoenix.HTML.Form struct and generates a

tag. The article concludes by mentioning the hidden inputs generated by form/1 and encourages developers to refer to the documentation for more details.