Django cloudinary image how to add onClick event in template {% %} tag?

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I am successfully creating a Cloudinary image as follows:

{% cloudinary photo.filename 
    width='300' 
    crop='fill' 
    class='item_photo' 
    id=photo.filename %}

Which results in html img tag:

<img 
    class="item_photo" 
    id="xxxxxx"         
    width="300"
    src="https://res.cloudinary.com/xxx/image/upload/c_fill,w_300/vxxx/xxx.jpg">

However, I want to add an onClick event to the img, but am not able to figure out the correct syntax or perhaps even if it is possible.

I would like html tag to look like:

<img 
    class="item_photo" 
    id="xxxxxx"         
    width="300"
    onClick=imageClick('xxxxxx')  <=== event variable is same as `id` value
    src="https://res.cloudinary.com/xxx/image/upload/c_fill,w_300/vxxx/xxx.jpg">

The id and imageClick variable are themselves populated by Django template tag value photo.filename.

Some things I've tried:

onClick='photoClick(photo.filename)' %}

{% with add:'onClick=photoClick('{{ photo.filename }}|add:') as onclick %}{{ onclick }}{% endwith %}

|add:'onClick=photoClick('{{ photo.filename }}|add:')' %}

How can I construct the onClick=photoClick(xxx) part of this template tag?

cloudinary django
1 Answers

You can add the onClick attribute to the img tag as shown below (e.g. photo.filename=sample_image):

{% cloudinary photo.filename width="300" crop="fill" class="item_photo" id=photo.filename onclick="photoClick(this)" %}

Add the script function photoClick(), which can accept the img tag object that can be processed as:

<script type="text/javascript">
    function photoClick(img) {
        
        console.log("The src data is: " + img.src);
        console.log("The id data is: " + img.id);
        
        var filename = img.src.substring(img.src.lastIndexOf('/')+1);
        console.log("The filename is: " + filename);
        
        // Other actions
        var src = img.src;
        window.open(src);
    }
</script>

The resulting HTML tag will be:

<img class="item_photo" id="sample_image" onclick="photoClick(this)" src="https://<your_cloudinary_image_url_path>/sample_image.<ext>" width="300"/>
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