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    <p><a href="http://api.rubyonrails.org/classes/ActionView/Helpers/UrlHelper.html#M001597" rel="nofollow noreferrer"><code>link_to</code></a> takes the same options that <a href="http://api.rubyonrails.org/classes/ActionController/Base.html#M000649" rel="nofollow noreferrer"><code>url_for</code></a> does. <del>Having said that, there is no <code>:type</code> option and it doesn't really accept blocks, so my guess is that the reason the your second example works is because it's located within the scope of a Book view.</del> As mentioned by <a href="https://stackoverflow.com/questions/2711294/rails-link-to-with-block-and-get-params/2711571#comment-2736417">Tom</a> in a reply to this answer, passing a block to <code>link_to</code> can be used as a replacement for the first argument (the link text).</p> <p>If Book is a resource, you can get the <code>link_to</code> helper to generate the URL you're looking for by passing it one of the handy, automatically generated resource routes rails makes for you. Run <code>rake routes</code> before you try this:</p> <pre><code>&lt;%= link_to "Edit", edit_book_path(book) %&gt; </code></pre> <p>Otherwise, you can explicitly state what controller/action you want to link to:</p> <pre><code>&lt;%= link_to "Edit", :controller =&gt; "books", :action =&gt; "edit", :id =&gt; book %&gt; </code></pre> <p>Happy hacking.</p> <p><strong>EDIT:</strong> Almost forgot, you CAN add query strings bypassing them in AFTER you declare the id of the object you're linking to.</p> <pre><code>&lt;%= link_to "Edit", edit_book_path(book, :query1 =&gt; "value", :query2 =&gt; "value") </code></pre> <p>Would product <code>/books/1/edit?query1=value&amp;query2=value</code>. Alternatively:</p> <pre><code>&lt;%= link_to "Edit", :controller =&gt; "books", :action =&gt; "edit", :id =&gt; book, :query1 =&gt; "value", :query2 =&gt; "value" %&gt; </code></pre>
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    1. COThe block seems to be a way of capturing input to place within the `<a>tags</a>`. http://railsapi.com/doc/rails-v2.3.5/classes/ActionView/Helpers/UrlHelper.html#M002452
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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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