edit.html.eex

<% link_style="padding: 15px; margin: 15px; font-size: 10px; background: darkgray; color: white; text-decoration: none; border-radius: 5px" %>
<% submit_style="font-size:30px; color: white; background: blue; border: none; border-radius: 10px; padding:10px; margin-left: 100px;" %>

<% action_path = Routes.auto_admin_path(@conn, :update, @schema, @id) %>
<% selects = Map.get(@selects, String.to_atom(@schema), %{}) %>

<h1>Edit <%= "#{String.capitalize(@schema)} : #{@id}" %></h1>

<%= form_for @changeset, Routes.auto_admin_path(@conn, :update, @schema, @id), [as: :data], fn form -> %>

  <h2>Fields</h2>
  <%= for field <- @schema_module.__schema__(:fields) do %>
    <%= case field do %>
      <% :id -> %>
      <% :inserted_at -> %>
      <% :updated_at -> %>
      <% _ -> %>
        <label><%= "#{String.capitalize(to_string(field))}" %></label>
        <%= render_field(form, @schema_module, field, selects) %>
        <br/><br/>
    <% end %>
  <% end %>

  <%= submit "Submit", style: submit_style %>
<% end %>
<br/><br/>
<div style='width: 100%; border-bottom: 1px solid black'></div>
<br/><br/>

<h2>Associations</h2>
<%= for association <- @schema_module.__schema__(:associations) do %>
  <% schema = @schema_module.__schema__(:association, association) %>
  <% related = Map.get schema, :related %>
  <h3><%= "#{String.capitalize(to_string(association))}" %></h3>
  <%= case related do %>
    <% nil -> %>
      <section>(Indirect Relation)</section>
    <% _ -> %>
      <%= for item <- Map.get(@changeset.data, association) do %>
        <% schema_name = schema.related.__schema__(:source) %>
        <% edit_link = "/autoadmin/edit/#{@prefix}#{schema_name}/#{item.id}" %>
        <section><a href='<%= edit_link %>'>Edit</a> - <%= render_item(schema, item) %></section>
      <% end %>
      <br/>
      <% page_num = Map.get @page_nums, association%>
      <% prev = "/autoadmin/edit/#{@schema}/#{@id}?#{association}_page=#{String.to_integer(page_num) - 1}" %>
      <% next = "/autoadmin/edit/#{@schema}/#{@id}?#{association}_page=#{String.to_integer(page_num) + 1}" %>
      <div>
        <a href='<%= prev %>' style='<%= link_style %>'><</a>
        Page: <%= page_num %>
        <a href='<%= next %>' style='<%= link_style %>'>></a>
      </div>
      <br/>
  <% end %>
<% end %>