How to call function that takes an argument in a Django template

Question

I m passing to Django s template a function  which returns some records   I want to call this function and iterate over its result       for item in my func 10        That doesn t work   I ve tried to set the function s return value to a variable and iterate over the variable  but there seems to be no way to set a variable in a Django template    Is there any normal way to do it

User · Answer

if you have an object you can define it as @property so you can get results without a call, e.g.

class Item:
    @property
    def results(self):
        return something

then in the template:

<% for result in item.results %>
...
<% endfor %>

User · Answer

I m passing to Django s template a function  which returns me some records   Why don t you pass to Django template the variable storing function s return value  instead of the function         I ve tried to set fuction s return value to a variable and iterate over variable  but there seems to be no way to set variable in Django template     You should set variables in Django views instead of templates  and then pass them to the template

User · Answer

What you could do is  create the  function  as another template file and then include that file passing the parameters to it   Inside index html   lt h3 gt  Latest Songs  lt  h3 gt     include  song player list html  with songs latest songs      Inside song player list html   lt ul gt      for song in songs     lt li gt   lt div id  songtile  gt   lt a href   songs download   song id     gt  lt i class  fa fa-cloud-download  gt  lt  i gt  amp nbsp Download lt  a gt    lt  div gt   lt  li gt     endfor     lt  ul gt

User · Answer

You cannot call a function that requires arguments in a template  Write a template tag or filter instead

User · Answer

By design  Django templates cannot call into arbitrary Python code  This is a security and safety feature for environments where designers write templates  and it also prevents business logic migrating into templates   If you want to do this  you can switch to using Jinja2 templates  http   jinja pocoo org docs    or any other templating system you like that supports this  No other part of django will be affected by the templates you use  because it is intentionally a one-way process  You could even use many different template systems in the same project if you wanted

[python] How to call function that takes an argument in a Django template?

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