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phoenix_html
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1.0.0
Phoenix view functions for working with HTML templates
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lib/phoenix_html/form_data.ex
defprotocol Phoenix.HTML.FormData do
@moduledoc """
Converts a data structure into a `Phoenix.HTML.Form` struct.
"""
@doc """
Converts a data structure into a `Phoenix.HTML.Form` struct.
The options are the same options given to `form_for/4`. It
can be used by implementations to configure their behaviour
and it must be stored in the underlying struct, with any
custom field removed.
"""
def to_form(data, options)
end
defimpl Phoenix.HTML.FormData, for: Plug.Conn do
def to_form(conn, opts) do
{name, opts} = Keyword.pop(opts, :name)
name = to_string(name || no_name_error!)
%Phoenix.HTML.Form{
source: conn,
name: name,
params: Map.get(conn.params, name) || %{},
options: opts
}
end
defp no_name_error! do
raise ArgumentError, "form_for/4 expects [name: NAME] to be given as option " <>
"when used with @conn"
end
end