Django template rendering order... - problem with include and partial and blocks

I've got:

ViewChild.html:

 {% extends 'app1/parent.html' %}  
 {%block  title%}
        my title
 {%endblock title%}

Then I've got Parent.html:

{%include 'html_parts/modal_part.html'   %}

That uses partial view:

   {%block  title%} 
     {%endblock  title%}

Unfortunately, the view is not rendered correctly ie. 'my title' is not displayed. (it is all ok with application, paths, etc. All files are placed in coorect folders). It is only something with the logic of rendering. Possibly, I can't use in parent view a partial, that defines block, that is going to be filled by child view? Any advices?

The reason why "my title" is not being displayed is because of how include works. From the documentation: include "loads a template and renders it with the current context."
This is different from how block works in template inheritance: block tells "the template engine that a child template may override those portions of the template." (Documentation)

What this means in your case is that you would need to update Parent.html to remove {% include 'html_parts/modal_part.html' %} and add {%block title %}, which allows ViewChild.html to override the value of title`.

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