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Check For Existence of Block

Is it possible to check for the existence of a block? For example:

article.html

<article<perch:if exists="image"> class="media"</perch:if>>
  <h2><perch:content id="title" type="text" label="Title" title="true" /></h2>
  <perch:blocks>
    <perch:block type="image" label="Image">
      <perch:template path="content/blocks/image.html" />
    </perch:block>
  </perch:blocks>
</article>

blocks/image.html

<img src="<perch:content id="image" type="image" label="Image" bucket="images" />" class="media__img" />

I'm using similar to the above but the "media" class never gets applied. Before switching to blocks I could test the image itself which would apply the appropriate styling, but it doesn't seem to work any more.

Thanks

Alan Longstaff 0 points

6 years ago

Drew McLellan 2638 points
Perch Support

6 years ago

What does <perch:showall /> give you? I don't think it's going to be available, but this is all new stuff.

Alan Longstaff 0 points

6 years ago

This is the output:


ID  Value
perch_page_path /perch/core/apps/content/edit/index.php
_id 884
title   Article Title
_title  Article Title
_blocks 
Array
(
    [0] => Array
        (
            [text] => Array
                (
                    [raw] => Lorem ipsum dolor sit amet
                    [processed] => 
Lorem ipsum dolor sit amet


                )

            [_block_type] => text
            [_block_id] => nmwnrc
            [_block_index] => 0
        )

    [1] => Array
        (
            [image] => Array
                (
                    [assetID] => 237
                    [title] => Chang
                    [_default] => /perch/resources/images/chang.jpg
                    [bucket] => images
                    [path] => chang.jpg
                    [size] => 124863
                    [w] => 488
                    [h] => 340
                    [mime] => image/jpeg
                    [sizes] => Array
                        (
                            [thumb] => Array
                                (
                                    [w] => 150
                                    [h] => 104
                                    [target_w] => 150
                                    [target_h] => 150
                                    [density] => 2
                                    [path] => chang-thumb.jpg
                                    [size] => 5381
                                    [mime] => 
                                    [assetID] => 238
                                )

                        )

                )

            [alt] => 
            [_block_type] => image
            [_block_id] => nmwnsq
            [_block_index] => 1
        )

)
itemRowID   7967
itemID  884
regionID    631
pageID  242
itemRev 15
itemOrder   1000
itemJSON    {"_id":"884","title":"Article Title","_title":"Article Title","_blocks":[{"text":{"raw":"Lorem{...}
itemSearch  Article Title Lorem ipsum dolor sit amet text nmwnrc 0 image nmwnsq 1
itemUpdated 2015-04-16 16:50:14
itemUpdatedBy   1
perch_item_first    true
perch_item_last true
perch_item_zero_index   0
perch_item_index    1
perch_item_rev_index    1
perch_item_rev_zero_index   0
perch_item_odd  
perch_item_count    1

Drew McLellan 2638 points
Perch Support

6 years ago

Hmm, that's not ideal. That _blocks entry should ideally be flattened into something usable.

Nothing that helps now, but I'll log it and see what we can do for a future update.

Alan Longstaff 0 points

6 years ago

Alright that's great thanks :)