need help creating a form

gistfile1.txt

I'm using Phoenix 1.4 and trying to create a form that has
several dozen sets of radio buttons.  The Phoenix.HTML.Form
helpers seem to assume that I'm using a database, which I'm
not.  So, I coded up HTML for the headings and input widgets.

This displayed nicely, but when I tried to submit the form
(using <form ...>), I got a nastygram about CSRF.  I tried
using form_for, but that gives me the following warning:

    warning: function PhxHttpWeb.Router.Helpers.page_path/2
    is undefined or private. Did you mean one of:

      * text_path/2
      * text_path/3

Suggestions, anyone?


<%= form_for @conn, Routes.page_path(@conn, :find_show), fn _f -> %>
  <%= for tag_type <- tag_types(@tag_info) do %>
    <h3><%= tag_type %></h3>
    <ul>
      <%= sub_map   = @tag_info[tag_type]
          tag_vals  = RefData.Common.keyss(sub_map)
          for tag_val <- tag_vals do %>
        <% tmp  = String.replace(tag_val, ~r{\W+}, "_")
           name = "#{ tag_type }_#{ tmp }"%>
        <li>
          <%= tag_val %> (<%= sub_map[tag_val] %>)<br>
          <input type="radio" id="a_<%= name %>"
                 name="<%= name %>" value="a">
          <label for="a_<%= name %>">-2</label> &nbsp;

          <input type="radio" id="b_<%= name %>"
                 name="<%= name %>" value="b">
          <label for="b_<%= name %>">-1</label> &nbsp;

          <input type="radio" id="c_<%= name %>"
                 name="<%= name %>" value="c" checked>
          <label for="c_<%= name %>">0</label> &nbsp;

          <input type="radio" id="d_<%= name %>"
                 name="<%= name %>" value="d">
          <label for="d_<%= name %>">1</label> &nbsp;

          <input type="radio" id="e_<%= name %>"
                 name="<%= name %>" value="e">
          <label for="e_<%= name %>">2</label>
        </li>
      <% end %>
    </ul>
  <% end %>

  <input type="submit" value="Submit">
<% end %>


Here is the router.ex file.  Note that the controller module names
(eg, ArticlesController, TextController) are my own:

defmodule PhxHttpWeb.Router do
  use PhxHttpWeb, :router

  pipeline :browser do
    plug :accepts, ["html"]
    plug :fetch_session
    plug :fetch_flash
    plug :protect_from_forgery
    plug :put_secure_browser_headers
  end

  pipeline :api do
    plug :accepts, ["json"]
  end

  scope "/", PhxHttpWeb do
    pipe_through :browser

    get  "/",                 TextController,         :home
    get  "/about",            TextController,         :about

    get  "/articles/item",    ArticlesController,     :item
    get  "/articles/main",    ArticlesController,     :main
    get  "/articles/type",    ArticlesController,     :type

    get  "/resources/find",   ResourcesController,    :find_form
    post "/resources/find",   ResourcesController,    :find_show
    get  "/resources/item",   ResourcesController,    :item
    get  "/resources/main",   ResourcesController,    :main
    get  "/resources/type",   ResourcesController,    :type

    get  "/source",           SourceController,       :show
  end

  # Other scopes may use custom stacks.
  # scope "/api", PhxHttpWeb do
  #   pipe_through :api
  # end
end