Avoid duplication for displaying blog post if it has multiple tags

[swapnilmr]

I'm displaying multiple posts on my Website Page with the help of custom module. I'm pulling post with the help of following code:

{% set topic_one = blog_recent_topic_posts('BLOG ID', topic_name_1, 10) %}
{% set topic_two = blog_recent_topic_posts('BLOG ID', topic_name_2, 10) %}
{% set topic_three = blog_recent_topic_posts('BLOG ID', topic_name_3, 10) %}

{% set topic_posts = (topic_one + topic_two + topic_three)|sort(true, false, 'publish_date') %}

{% for topic_post in topic_posts %}
Post content
{% endfor %} 

The problem is, if the blog post has both topic_one and topic_two tagged, then that blog post will get displayed twice. I want to avoid this duplication. Can anyone help me with this?

[Jsum · Accepted solution]

Use the unique Hubl filter

{% for topic_post in topic_posts|unique %}
Post content
{% endfor %}

I've had this issue before and I am pretty sure that is how I got it to work.

[swapnilmr]

Thank you, this works!