Flask partial view like MVC 3

Question

Is there something like .net MVC 3's partial view in flask?
I want to embed a widget in one view page,and that widget has its own logic.

Answer 1

There are several ways to include content in a Jinja2 template:

The include statement will render the supplied view (with the current context by default):

{# In your_view_template.jinja #} {# ... your code ... #} {% include "widgets/your_widget.jinja" %} {# ... your code ... #} 

You can also define macros and import them into the view template:

{# In your_view_template.jinja #} {% import "widgets/your_widget.jinja" as your_widget %} {# ... your code ... #} {{ you_widget.render(your, important, variables, etc.) }} {# ... your code ... #} 

Both import and include can use variables, so something like this is possible:

# In your view if complex_conditions.are_true():     widget = "widgets/special_custom_widget.jinja" else:     widget = "widgets/boring_widget.jinja" render_template("your_view.jinja", widget=widget)  {# In your_view_template.jinja #} {% include widget %} {#  import widget as sidebar_widget  {{ sidebar_widget.render() }} would also work  #} 

These both work similarly to MVC's partial views (at least, inasmuch as I understand them)

Alternately, if your widget needs access to ACLs or information that should not be available to the template layer and you cannot re-write your view to take advantage of include and import you can take @[Alex Morega]'s suggestion and pass in a callable as a variable to the template and render it there.

# In your view render_template("your_view.jinja", widget=you_callable, etc, etc, etc)  {# In your_view_template.jinja #} {# ... your code ... #} {{ widget() }} {# Or, if you are returning HTML that is not a Markup construct #} {{ widget() | safe }} {# ... your code ... #} 

You could even create your own template loader and load different templates depending on almost anything. But that would definitely be overkill for this case.