Numeric for loop in Django templates

Question

How do I write a numeric for loop in a Django template  I mean something like  for i   1 to n

User · Answer

For those who are looking to simple answer  just needing  to display an amount of values  let say 3 from 100 posts for example just add    for post in posts slice  3     and loop it normally and only 3 posts will be added

User · Answer

Maybe like this      for i in  x  rjust  100            endfor

User · Answer

This essentially requires a range function  A Django feature ticket was raised  https   code djangoproject com ticket 13088  for this but closed as  won t fix  with the following comment      My impression of this idea is that it is trying to lead to programming in the template  If you have a list of options that need to be rendered  they should be computed in the view  not in the template  If that s as simple as a range of values  then so be it    They have a good point - Templates are supposed to be very simple representations of the view  You should create the limited required data in the view and pass to the template in the context

User · Answer

This shows 1 to 20 numbers     for i in  quot x quot  rjust  quot 20 quot  make list        forloop counter       endfor     also this can help you   count all slider objects come from views     for i in  quot x quot  rjust count all slider objects         forloop counter       endfor     or      with counter count all slider objects           if list all slider objects              for slide in list all slider objects              forloop counter add  quot -1 quot               endfor            endif           endwith

User · Answer

for i in range 10           i        endfor

User · Answer

Just incase anyone else comes across this question    I ve created a template tag which lets you create a range       http   www djangosnippets org snippets 1926    Accepts the same arguments as the  range  builtin and creates a list containing the result of  range    Syntax         mkrange  start   stop   step  as context name     For example         mkrange 5 10 2 as some range           for i in some range             i     Something I want to repeat n        endfor     Produces      5  Something I want to repeat      7  Something I want to repeat      9  Something I want to repeat

User · Answer

for   in    center 13           forloop counter       endfor

User · Answer

My take on this issue  i think is the nicest  I keep a my filters py on the templatetags directory     register filter name  times    def times number       return range number    And you would use like this      load my filters       for i in 15 times         lt li gt Item lt  li gt     endfor

User · Answer

I m just taking the popular answer a bit further and making it more robust   This lets you specify any start point  so 0 or 1 for example   It also uses python s range feature where the end is one less so it can be used directly with list lengths for example    register filter name  range   def filter range start  end     return range start  end    Then in your template just include the above template tag file and use the following      for c in 1 range 6       c       endfor      Now you can do 1-6 instead of just 0-6 or hard coding it   Adding a step would require a template tag  this should cover more uses cases so it s a step forward

User · Answer

If the number is coming from a model  I found this to be a nice patch to the model   def iterableQuantity self       return range self quantity

User · Answer

with    center n as range       for   in range           forloop counter       endfor       endwith

User · Answer

You can use     with    center  i as range

User · Answer

You can pass a binding of    n    range n      to the template  then do     for i in n           endfor      Note that you ll get 0-based behavior  0  1      n-1     Updated for Python3 compatibility

User · Answer

You can pass       n    range n     To use template       for i in n           endfor

User · Answer

I tried very hard on this question  and I find the best answer here    from how to loop 7 times in the django templates   You can even access the idx   views py   context  loop times     range 1  8    html      for i in loop times             lt option value    i    gt    i    lt  option gt     endfor

User · Answer

You don t pass n itself  but rather range n   the list of integers from 0 to n-1 included   from your view to your template  and in the latter you do    for i in therange     if you absolutely insist on 1-based rather than the normal 0-based index you can use forloop counter in the loop s body -

User · Answer

You should use  slice  in template  a example like this   in views py  contexts          ALL STORES   Store objects all       return render to response  store list html   contexts  RequestContext request  processors  custom processor      in store list html    lt ul gt     for store in ALL STORES slice   10          lt li class  store item  gt    store name    lt  li gt     endfor     lt  ul gt

User · Answer

This method supports all the functionality of the standard range  start   stop   step   function   lt app gt  templatetags range py  from django import template  register   template Library      register filter name  range   def  range  min  args None        max   step   None  None     if args          if not isinstance args  int                max   step   map int  args split               else               max   args     args   filter None    min   max   step       return range  args    Usage      load range      lt p gt stop 5    for value in 5 range       value       endfor     lt  p gt    lt p gt start 5 stop 10    for value in 5 range 10       value       endfor     lt  p gt    lt p gt start 5 stop 10 step 2    for value in 5 range  10 2        value       endfor     lt  p gt    Output   lt p gt stop 5 0 1 2 3 4  lt  p gt    lt p gt start 5 stop 10 5 6 7 8 9  lt  p gt    lt p gt start 5 stop 10 step 2 5 7 9  lt  p gt

User · Answer

I ve used a simple technique that works nicely for small cases with no special tags and no additional context   Sometimes this comes in handy     for i in  0123456789  make list           forloop counter       endfor

User · Answer

Unfortunately  that s not supported in the Django template language  There are a couple  of suggestions  but they seem a little complex  I would just put a variable in the context       render to response  foo html          range   range 10                    and in the template      for i in range                endfor

[django] Numeric for loop in Django templates

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