List and Detail then Detail page

How would <perch:if> single out one of the list of <perch:repeater> items?

I've got this in the repeater (although not necessarily 100% unique once an editor gets hold of it)

<p><a href="shop.php?p=<perch:content id="title" type="text" />">Buy Now</a></p>

or perhaps could I grab 'id=perch_item_index', Would that be unique?

The plan was to just display that repeater item on shop.php

It's more important how to filter one of the <perch:repeater> items to appear on shop.php

<p><a href="shop.php?p=<perch:content id="myrepeatertitle" type="text" />">Buy Now</a></p>

Mmm.. not sure if I'm approaching this right.

I'd never know how many repeaters the editor would have added short of adding an exhaustive <perch:if> template for every value

Is <perch:if> the only way to do this?

<title>
<main-description>
<perch:repeater>
  <perch:if   ????>
    <product-title><link to sort/list only this item>
  </perch:if>
</repeater>

Sorry my bad yes. I'd still need it in the list template....

<title>
<main-description>
<perch:repeater>
  <perch:if   ????>
    <product-title>
  </perch:if>
</repeater>

The detail page is already sorted on...

../products.php?s=list-detail

And so link needs to be (to get the repeater for that item)...

../shop.php?s=list-detail&p=perch_item_index

Which I don't know how to get the value of 'perch_item_index' back into the template. (it all works if I add a match manually)

...meaning I need the first id="title" available to the <perch:repeater> inner part of the template

Doing a <perch:showall /> tell me that any ID "outside" of the <perch:repeater> is not available the inside of <perch:repeater>

Can this be done?

... scope-parent="true" might help me here. Let me test this.

OK scope-parent="true" let's me properly format the query string to make it something like this...

../shop.php?s=list-detail&p=single-repeater-item

And I have this on the shop page...

if (perch_get('s')) {

          // Detail mode
          perch_content_custom('Products', array(
              'page' => '/products.php',
               'template' => 'shop.html',
               'filter'   => 'slug',
               'match'    => 'eq',
               'value'    => perch_get('s'),
               'count'    => 1,
          )); 

     } else {

          echo "<p>nothing here</p>";
     }
?>

Using this template on the shop page...

<h2><perch:content id="title" type="text" label="Product title" required="true" title="true" suppress="true" /></h2>

<perch:repeater id="images" label="Fabric" scope-parent="true">
    <h2><perch:content id="parent.title" type="text" label="Product title" required="true" title="true" /> <perch:content id="title" type="text" label="Product title" required="true" title="true" /></h2>
    <perch:content id="desc" type="textarea" label="Description" textile="true" size="xs" help="Give some clear description of this product" />
    <img src="<perch:content type="image" id="image" label="Image" />"  alt="<perch:content type="text" id="alt" label="Image Description" />" />
</perch:repeater>

But this lists "all" contents of the repeater.

How do I get both s=list-detail&p=single-repeater-item to sort the template?

I ended up getting the "p" separately from the query string...

<?php $p = $_GET['p']; ?>

Then adding into Perch template...

<?php 
    PerchSystem::set_var('pitem', $p);
    perch_content_custom('My region', array(
        'template'=>'shop.html'
    ));
?>

And into the template to sort using if...

<perch:if id="pitem" match="eq" value="{slug}">

Is this the way I should be working with Perch?

Yes the basic principle is working just needs a tidy up.

How do I use perch_get() ?

Fantastic. Thanks.