Basics
This check is disabled by default.
Learn how to enable it via .credo.exs.
This check has a base priority of normal and works with any version of Elixir.
Explanation
Flags forms built directly from a changeset assign
(<.form for={@changeset}>) instead of from to_form/2. A changeset
assign changes as a whole on every validation, so LiveView re-renders
the entire form; a Phoenix.HTML.Form from to_form/2 lets it track
fields individually, and is what Phoenix's generators and <.input>
expect.
Before:
assign(socket, :changeset, Accounts.change_user(user))
<.form for={@changeset} phx-change="validate">After:
assign(socket, :form, to_form(Accounts.change_user(user)))
<.form for={@form} phx-change="validate">The check recognizes a changeset by name: an assign whose name ends in
changeset.
Confidence: medium. Tier: syntactic (works without compiling).
Check-Specific Parameters
Use the following parameters to configure this check:
:excluded_paths
Paths to skip (atoms, binaries as path segments, or regexes).
This parameter defaults to [~r/\/test\//, "test"].
:strict
Unused.
This parameter defaults to false.
General Parameters
Like with all checks, general params can be applied.
Parameters can be configured via the .credo.exs config file.