Add read more / read less button to Dawn theme collection pages

[Steve791]

Hi,

I am using the Dawn theme and would like to add a "read more" "read less" button to my collection page descriptions.

Some of my collection descriptions are too long (for SEO purpose) and I need that toggle button to make it more user friendly.

Thanks in advance

[dmwwebartisan]

@Steve791 

Please try this 

• From your Shopify dashboard, click Online store > Actions > Edit code
• Open the file collection-template.liquid
• Replace this code (it is duplicated 2 times)

{{ collection.description }}

With this one

{% if collection.description.size > 700 %}
<div class="product-description-short">
{{ collection.description | truncate: 500, ". . . " }}<a class="readmore" href="#">Show More ></a>
</div>
<div class="product-description-full" style="display:none;">
{{ collection.description }}
<br><a class="readless" href="#">< Show Less</a>
</div>
{% else %}
{{ collection.description }}
{% endif %}

Just before this code

{% endpaginate %}

Add this one

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script>
$('.readmore').click(function (event) {
event.preventDefault();
var descriptionFull = document.querySelector('.product-description-full');
descriptionFull.style.display = 'block';
var descriptionShort = document.querySelector('.product-description-short');
descriptionShort.style.display = 'none';
});
$('.readless').click(function (event) {
event.preventDefault();
var descriptionFull = document.querySelector('.product-description-full');
descriptionFull.style.display = 'none';
var descriptionShort = document.querySelector('.product-description-short');
descriptionShort.style.display = 'block';window.scrollTo({top: 110, behavior: 'smooth'});
})
</script>

[Mekko]

Im trying to this with your code but I have different one...

I have main.collection.banner.liquid - don't have  collection-template.liquid

in main.collection.banner.liquid I have one time code:

{{ collection.description }}

and I don't have: {% endpaginate %}

This is my code from main.collection.banner.liquid

{% comment %}theme-check-disable ImgLazyLoading{% endcomment %}
{{ 'component-collection-hero.css' | asset_url | stylesheet_tag }}

{%- style -%}
@media screen and (max-width: 749px) {
.collection-hero--with-image .collection-hero__inner {
padding-bottom: calc({{ settings.media_shadow_vertical_offset | at_least: 0 }}px + 2rem);
}
}
{%- endstyle -%}

<div class="collection-hero{% if section.settings.show_collection_image and collection.image %} collection-hero--with-image{% endif %} color-{{ section.settings.color_scheme }} gradient">
<div class="collection-hero__inner page-width">
<div class="collection-hero__text-wrapper">
<h1 class="collection-hero__title">
<span class="visually-hidden">{{ 'sections.collection_template.title' | t }}: </span>
{{- collection.title | escape -}}
</h1>

{%- if section.settings.show_collection_description -%}
<div class="collection-hero__description rte">{{ collection.description }}</div>
{%- endif -%}
</div>

{%- if section.settings.show_collection_image and collection.image -%}
<div class="collection-hero__image-container media gradient">
<img
srcset="
{%- if collection.image.width >= 165 -%}{{ collection.image | image_url: width: 165 }} 165w,{%- endif -%}
{%- if collection.image.width >= 360 -%}{{ collection.image | image_url: width: 360 }} 360w,{%- endif -%}
{%- if collection.image.width >= 535 -%}{{ collection.image | image_url: width: 535 }} 535w,{%- endif -%}
{%- if collection.image.width >= 750 -%}{{ collection.image | image_url: width: 750 }} 750w,{%- endif -%}
{%- if collection.image.width >= 1070 -%}{{ collection.image | image_url: width: 1070 }} 1070w,{%- endif -%}
{%- if collection.image.width >= 1500 -%}{{ collection.image | image_url: width: 1500 }} 1500w,{%- endif -%}
{{ collection.image | image_url }} {{ collection.image.width }}w
"
src="{{ collection.image | image_url: width: 750 }}"
sizes="(min-width: {{ settings.page_width }}px) {{ settings.page_width | minus: 100 | divided_by: 2 }}px, (min-width: 750px) calc(50vw - 130px), calc(50vw - 55px)"
alt=""
width="{{ collection.image.width }}"
height="{{ collection.image.height }}"
>
</div>
{%- endif -%}
</div>
</div>

{% schema %}
{
"name": "t:sections.main-collection-banner.name",
"class": "section",
"settings": [
{
"type": "paragraph",
"content": "t:sections.main-collection-banner.settings.paragraph.content"
},
{
"type": "checkbox",
"id": "show_collection_description",
"default": true,
"label": "t:sections.main-collection-banner.settings.show_collection_description.label"
},
{
"type": "checkbox",
"id": "show_collection_image",
"default": false,
"label": "t:sections.main-collection-banner.settings.show_collection_image.label",
"info": "t:sections.main-collection-banner.settings.show_collection_image.info"
},
{
"type": "select",
"id": "color_scheme",
"options": [
{
"value": "accent-1",
"label": "t:sections.all.colors.accent_1.label"
},
{
"value": "accent-2",
"label": "t:sections.all.colors.accent_2.label"
},
{
"value": "background-1",
"label": "t:sections.all.colors.background_1.label"
},
{
"value": "background-2",
"label": "t:sections.all.colors.background_2.label"
},
{
"value": "inverse",
"label": "t:sections.all.colors.inverse.label"
}
],
"default": "background-1",
"label": "t:sections.all.colors.label"
}
]
}
{% endschema %}

Can you help ?

[brindle_staffy]

Digging up an older thread but did you ever find a solution to this? 

[Ankit_Kr]

<div class="collection-hero__description rte">{{ collection.description }}</div>

If you have a similar code. You can replace {{ collection.description }} with code mentioned in the solution above and it will work.