django template access to list item by forloop.counter
I want to loop over my model's query set in the Django template. I can do it simply using Django for loop but I can not do it for steps more than 1,Here is my code
{% for map in maps %}
{% if forloop.counter|divisibleby:2 %}
#Here I can access Maps with index of 1,3,5 and ..
#How can I access map with index 2,4,6 here at the same time sth like Map[forloop.counter+1]
{% endif %}
{% endfor %}
In fact I want a way to acces Map[forloop.counter+1] in my template but I have no idea how to do that
django django-templates
asked Nov 13 '18 at 18:04
Majid HojatiMajid Hojati
63131224
add a comment |
I want to loop over my model's query set in the Django template. I can do it simply using Django for loop but I can not do it for steps more than 1,Here is my code
{% for map in maps %}
{% if forloop.counter|divisibleby:2 %}
#Here I can access Maps with index of 1,3,5 and ..
#How can I access map with index 2,4,6 here at the same time sth like Map[forloop.counter+1]
{% endif %}
{% endfor %}
In fact I want a way to acces Map[forloop.counter+1] in my template but I have no idea how to do that
django django-templates
asked Nov 13 '18 at 18:04
Majid HojatiMajid Hojati
63131224
use{% else %}?
– Alex
Nov 13 '18 at 18:18
No I can not use else, as I want step my for +2
– Majid Hojati
Nov 13 '18 at 18:19
add a comment |
I want to loop over my model's query set in the Django template. I can do it simply using Django for loop but I can not do it for steps more than 1,Here is my code
{% for map in maps %}
{% if forloop.counter|divisibleby:2 %}
#Here I can access Maps with index of 1,3,5 and ..
#How can I access map with index 2,4,6 here at the same time sth like Map[forloop.counter+1]
{% endif %}
{% endfor %}
In fact I want a way to acces Map[forloop.counter+1] in my template but I have no idea how to do that
django django-templates
asked Nov 13 '18 at 18:04
Majid HojatiMajid Hojati
63131224
I want to loop over my model's query set in the Django template. I can do it simply using Django for loop but I can not do it for steps more than 1,Here is my code
{% for map in maps %}
{% if forloop.counter|divisibleby:2 %}
#Here I can access Maps with index of 1,3,5 and ..
#How can I access map with index 2,4,6 here at the same time sth like Map[forloop.counter+1]
{% endif %}
{% endfor %}
In fact I want a way to acces Map[forloop.counter+1] in my template but I have no idea how to do that
django django-templates
django django-templates
asked Nov 13 '18 at 18:04
Majid HojatiMajid Hojati
63131224
asked Nov 13 '18 at 18:04
Majid HojatiMajid Hojati
63131224
asked Nov 13 '18 at 18:04
Majid HojatiMajid Hojati
63131224
asked Nov 13 '18 at 18:04
Majid HojatiMajid Hojati
63131224
asked Nov 13 '18 at 18:04
Majid HojatiMajid Hojati
63131224
63131224
use{% else %}?
– Alex
Nov 13 '18 at 18:18
No I can not use else, as I want step my for +2
– Majid Hojati
Nov 13 '18 at 18:19
add a comment |
use{% else %}?
– Alex
Nov 13 '18 at 18:18
No I can not use else, as I want step my for +2
– Majid Hojati
Nov 13 '18 at 18:19
use
{% else %} ?– Alex
Nov 13 '18 at 18:18
use
{% else %} ?– Alex
Nov 13 '18 at 18:18
No I can not use else, as I want step my for +2
– Majid Hojati
Nov 13 '18 at 18:19
No I can not use else, as I want step my for +2
– Majid Hojati
Nov 13 '18 at 18:19
add a comment |
3 Answers
3
active
oldest
votes
Create a custom template filter as defined here https://docs.djangoproject.com/en/dev/howto/custom-template-tags/#registering-custom-filters
from django import template
register = template.Library()
@register.filter
def list_item(lst, i):
try:
return lst[i]
except:
return None
Inside your template, use it like:
{% for map in maps %}
{% if forloop.counter|divisibleby:2 %}
{% with maps|list_item:forloop.counter+1 as another_map %}
{{another_map.id}}
{% endif %}
{% endfor %}
Where to write template tags?
Create a directory templatetags at the same level as models.py, views.py. Then add __init__.py and a file maps_tags.py. Write the custom tag definition in maps_tags.py. In your template, load the template tags by writing {% load maps_tags %} at the top. More documentation at https://docs.djangoproject.com/en/dev/howto/custom-template-tags/#code-layout
answered Nov 13 '18 at 18:37
jerrymousejerrymouse
8,590104967
Hi, thanks very much, How can I manage to get info from map?for example{{ maps|list_item:forloop.counter+1 }}.idis it possible?
– Majid Hojati
Nov 13 '18 at 19:01
@MajidHojati You'll have to usewith. Updated my answer.
– jerrymouse
Nov 13 '18 at 20:12
wow,thanks very much,it worked
– Majid Hojati
Nov 13 '18 at 20:13
isforloop.counter+1correct?
– Majid Hojati
Nov 13 '18 at 20:24
add a comment |
You can combine more than one forloop and implement your custom logic for this, but not access in the same time. Below all forloops from Django 2.1 documentation.
forloop.counter The current iteration of the loop (1-indexed)
forloop.counter0 The current iteration of the loop (0-indexed)
forloop.revcounter The number of iterations from the end of the loop (1-indexed)
forloop.revcounter0 The number of iterations from the end of the loop (0-indexed)
forloop.first True if this is the first time through the loop
forloop.last True if this is the last time through the loop
forloop.parentloop For nested loops, this is the loop surrounding the current one
tell me, What is the problem that you want solve? Maybe you can create a custom tamplate tag or template filter.
answered Nov 13 '18 at 18:43
silvio leitesilvio leite
613
But How can I accesmaps[forloop.counter ]? my problem is accessing the maps byforloop.counterindex
– Majid Hojati
Nov 13 '18 at 19:15
add a comment |
In Django you can use {{ forloop.counter }} index starts at 1 or {{ forloop.counter0 }} index starts at 0.
Maybe you can use this to acces the index+1
I hope this helped. You can read more here
answered Nov 13 '18 at 18:45
SigurdSigurd
214
But How can I accesmaps[forloop.counter ]?
– Majid Hojati
Nov 13 '18 at 19:14
add a comment |
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3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
Create a custom template filter as defined here https://docs.djangoproject.com/en/dev/howto/custom-template-tags/#registering-custom-filters
from django import template
register = template.Library()
@register.filter
def list_item(lst, i):
try:
return lst[i]
except:
return None
Inside your template, use it like:
{% for map in maps %}
{% if forloop.counter|divisibleby:2 %}
{% with maps|list_item:forloop.counter+1 as another_map %}
{{another_map.id}}
{% endif %}
{% endfor %}
Where to write template tags?
Create a directory templatetags at the same level as models.py, views.py. Then add __init__.py and a file maps_tags.py. Write the custom tag definition in maps_tags.py. In your template, load the template tags by writing {% load maps_tags %} at the top. More documentation at https://docs.djangoproject.com/en/dev/howto/custom-template-tags/#code-layout
answered Nov 13 '18 at 18:37
jerrymousejerrymouse
8,590104967
Hi, thanks very much, How can I manage to get info from map?for example{{ maps|list_item:forloop.counter+1 }}.idis it possible?
– Majid Hojati
Nov 13 '18 at 19:01
@MajidHojati You'll have to usewith. Updated my answer.
– jerrymouse
Nov 13 '18 at 20:12
wow,thanks very much,it worked
– Majid Hojati
Nov 13 '18 at 20:13
isforloop.counter+1correct?
– Majid Hojati
Nov 13 '18 at 20:24
add a comment |
Create a custom template filter as defined here https://docs.djangoproject.com/en/dev/howto/custom-template-tags/#registering-custom-filters
from django import template
register = template.Library()
@register.filter
def list_item(lst, i):
try:
return lst[i]
except:
return None
Inside your template, use it like:
{% for map in maps %}
{% if forloop.counter|divisibleby:2 %}
{% with maps|list_item:forloop.counter+1 as another_map %}
{{another_map.id}}
{% endif %}
{% endfor %}
Where to write template tags?
Create a directory templatetags at the same level as models.py, views.py. Then add __init__.py and a file maps_tags.py. Write the custom tag definition in maps_tags.py. In your template, load the template tags by writing {% load maps_tags %} at the top. More documentation at https://docs.djangoproject.com/en/dev/howto/custom-template-tags/#code-layout
answered Nov 13 '18 at 18:37
jerrymousejerrymouse
8,590104967
Hi, thanks very much, How can I manage to get info from map?for example{{ maps|list_item:forloop.counter+1 }}.idis it possible?
– Majid Hojati
Nov 13 '18 at 19:01
@MajidHojati You'll have to usewith. Updated my answer.
– jerrymouse
Nov 13 '18 at 20:12
wow,thanks very much,it worked
– Majid Hojati
Nov 13 '18 at 20:13
isforloop.counter+1correct?
– Majid Hojati
Nov 13 '18 at 20:24
add a comment |
Create a custom template filter as defined here https://docs.djangoproject.com/en/dev/howto/custom-template-tags/#registering-custom-filters
from django import template
register = template.Library()
@register.filter
def list_item(lst, i):
try:
return lst[i]
except:
return None
Inside your template, use it like:
{% for map in maps %}
{% if forloop.counter|divisibleby:2 %}
{% with maps|list_item:forloop.counter+1 as another_map %}
{{another_map.id}}
{% endif %}
{% endfor %}
Where to write template tags?
Create a directory templatetags at the same level as models.py, views.py. Then add __init__.py and a file maps_tags.py. Write the custom tag definition in maps_tags.py. In your template, load the template tags by writing {% load maps_tags %} at the top. More documentation at https://docs.djangoproject.com/en/dev/howto/custom-template-tags/#code-layout
answered Nov 13 '18 at 18:37
jerrymousejerrymouse
8,590104967
Create a custom template filter as defined here https://docs.djangoproject.com/en/dev/howto/custom-template-tags/#registering-custom-filters
from django import template
register = template.Library()
@register.filter
def list_item(lst, i):
try:
return lst[i]
except:
return None
Inside your template, use it like:
{% for map in maps %}
{% if forloop.counter|divisibleby:2 %}
{% with maps|list_item:forloop.counter+1 as another_map %}
{{another_map.id}}
{% endif %}
{% endfor %}
Where to write template tags?
Create a directory templatetags at the same level as models.py, views.py. Then add __init__.py and a file maps_tags.py. Write the custom tag definition in maps_tags.py. In your template, load the template tags by writing {% load maps_tags %} at the top. More documentation at https://docs.djangoproject.com/en/dev/howto/custom-template-tags/#code-layout
answered Nov 13 '18 at 18:37
jerrymousejerrymouse
8,590104967
edited Nov 13 '18 at 20:12
answered Nov 13 '18 at 18:37
jerrymousejerrymouse
8,590104967
answered Nov 13 '18 at 18:37
jerrymousejerrymouse
8,590104967
answered Nov 13 '18 at 18:37
jerrymousejerrymouse
8,590104967
8,590104967
Hi, thanks very much, How can I manage to get info from map?for example{{ maps|list_item:forloop.counter+1 }}.idis it possible?
– Majid Hojati
Nov 13 '18 at 19:01
@MajidHojati You'll have to usewith. Updated my answer.
– jerrymouse
Nov 13 '18 at 20:12
wow,thanks very much,it worked
– Majid Hojati
Nov 13 '18 at 20:13
isforloop.counter+1correct?
– Majid Hojati
Nov 13 '18 at 20:24
add a comment |
Hi, thanks very much, How can I manage to get info from map?for example{{ maps|list_item:forloop.counter+1 }}.idis it possible?
– Majid Hojati
Nov 13 '18 at 19:01
@MajidHojati You'll have to usewith. Updated my answer.
– jerrymouse
Nov 13 '18 at 20:12
wow,thanks very much,it worked
– Majid Hojati
Nov 13 '18 at 20:13
isforloop.counter+1correct?
– Majid Hojati
Nov 13 '18 at 20:24
Hi, thanks very much, How can I manage to get info from map?for example
{{ maps|list_item:forloop.counter+1 }}.id is it possible?– Majid Hojati
Nov 13 '18 at 19:01
Hi, thanks very much, How can I manage to get info from map?for example
{{ maps|list_item:forloop.counter+1 }}.id is it possible?– Majid Hojati
Nov 13 '18 at 19:01
@MajidHojati You'll have to use
with. Updated my answer.– jerrymouse
Nov 13 '18 at 20:12
@MajidHojati You'll have to use
with. Updated my answer.– jerrymouse
Nov 13 '18 at 20:12
wow,thanks very much,it worked
– Majid Hojati
Nov 13 '18 at 20:13
wow,thanks very much,it worked
– Majid Hojati
Nov 13 '18 at 20:13
is
forloop.counter+1 correct?– Majid Hojati
Nov 13 '18 at 20:24
is
forloop.counter+1 correct?– Majid Hojati
Nov 13 '18 at 20:24
add a comment |
You can combine more than one forloop and implement your custom logic for this, but not access in the same time. Below all forloops from Django 2.1 documentation.
forloop.counter The current iteration of the loop (1-indexed)
forloop.counter0 The current iteration of the loop (0-indexed)
forloop.revcounter The number of iterations from the end of the loop (1-indexed)
forloop.revcounter0 The number of iterations from the end of the loop (0-indexed)
forloop.first True if this is the first time through the loop
forloop.last True if this is the last time through the loop
forloop.parentloop For nested loops, this is the loop surrounding the current one
tell me, What is the problem that you want solve? Maybe you can create a custom tamplate tag or template filter.
answered Nov 13 '18 at 18:43
silvio leitesilvio leite
613
But How can I accesmaps[forloop.counter ]? my problem is accessing the maps byforloop.counterindex
– Majid Hojati
Nov 13 '18 at 19:15
add a comment |
You can combine more than one forloop and implement your custom logic for this, but not access in the same time. Below all forloops from Django 2.1 documentation.
forloop.counter The current iteration of the loop (1-indexed)
forloop.counter0 The current iteration of the loop (0-indexed)
forloop.revcounter The number of iterations from the end of the loop (1-indexed)
forloop.revcounter0 The number of iterations from the end of the loop (0-indexed)
forloop.first True if this is the first time through the loop
forloop.last True if this is the last time through the loop
forloop.parentloop For nested loops, this is the loop surrounding the current one
tell me, What is the problem that you want solve? Maybe you can create a custom tamplate tag or template filter.
answered Nov 13 '18 at 18:43
silvio leitesilvio leite
613
But How can I accesmaps[forloop.counter ]? my problem is accessing the maps byforloop.counterindex
– Majid Hojati
Nov 13 '18 at 19:15
add a comment |
You can combine more than one forloop and implement your custom logic for this, but not access in the same time. Below all forloops from Django 2.1 documentation.
forloop.counter The current iteration of the loop (1-indexed)
forloop.counter0 The current iteration of the loop (0-indexed)
forloop.revcounter The number of iterations from the end of the loop (1-indexed)
forloop.revcounter0 The number of iterations from the end of the loop (0-indexed)
forloop.first True if this is the first time through the loop
forloop.last True if this is the last time through the loop
forloop.parentloop For nested loops, this is the loop surrounding the current one
tell me, What is the problem that you want solve? Maybe you can create a custom tamplate tag or template filter.
answered Nov 13 '18 at 18:43
silvio leitesilvio leite
613
You can combine more than one forloop and implement your custom logic for this, but not access in the same time. Below all forloops from Django 2.1 documentation.
forloop.counter The current iteration of the loop (1-indexed)
forloop.counter0 The current iteration of the loop (0-indexed)
forloop.revcounter The number of iterations from the end of the loop (1-indexed)
forloop.revcounter0 The number of iterations from the end of the loop (0-indexed)
forloop.first True if this is the first time through the loop
forloop.last True if this is the last time through the loop
forloop.parentloop For nested loops, this is the loop surrounding the current one
tell me, What is the problem that you want solve? Maybe you can create a custom tamplate tag or template filter.
answered Nov 13 '18 at 18:43
silvio leitesilvio leite
613
answered Nov 13 '18 at 18:43
silvio leitesilvio leite
613
answered Nov 13 '18 at 18:43
silvio leitesilvio leite
613
answered Nov 13 '18 at 18:43
silvio leitesilvio leite
613
613
But How can I accesmaps[forloop.counter ]? my problem is accessing the maps byforloop.counterindex
– Majid Hojati
Nov 13 '18 at 19:15
add a comment |
But How can I accesmaps[forloop.counter ]? my problem is accessing the maps byforloop.counterindex
– Majid Hojati
Nov 13 '18 at 19:15
But How can I acces
maps[forloop.counter ]? my problem is accessing the maps by forloop.counter index– Majid Hojati
Nov 13 '18 at 19:15
But How can I acces
maps[forloop.counter ]? my problem is accessing the maps by forloop.counter index– Majid Hojati
Nov 13 '18 at 19:15
add a comment |
In Django you can use {{ forloop.counter }} index starts at 1 or {{ forloop.counter0 }} index starts at 0.
Maybe you can use this to acces the index+1
I hope this helped. You can read more here
answered Nov 13 '18 at 18:45
SigurdSigurd
214
But How can I accesmaps[forloop.counter ]?
– Majid Hojati
Nov 13 '18 at 19:14
add a comment |
In Django you can use {{ forloop.counter }} index starts at 1 or {{ forloop.counter0 }} index starts at 0.
Maybe you can use this to acces the index+1
I hope this helped. You can read more here
answered Nov 13 '18 at 18:45
SigurdSigurd
214
But How can I accesmaps[forloop.counter ]?
– Majid Hojati
Nov 13 '18 at 19:14
add a comment |
In Django you can use {{ forloop.counter }} index starts at 1 or {{ forloop.counter0 }} index starts at 0.
Maybe you can use this to acces the index+1
I hope this helped. You can read more here
answered Nov 13 '18 at 18:45
SigurdSigurd
214
In Django you can use {{ forloop.counter }} index starts at 1 or {{ forloop.counter0 }} index starts at 0.
Maybe you can use this to acces the index+1
I hope this helped. You can read more here
answered Nov 13 '18 at 18:45
SigurdSigurd
214
answered Nov 13 '18 at 18:45
SigurdSigurd
214
answered Nov 13 '18 at 18:45
SigurdSigurd
214
answered Nov 13 '18 at 18:45
SigurdSigurd
214
214
But How can I accesmaps[forloop.counter ]?
– Majid Hojati
Nov 13 '18 at 19:14
add a comment |
But How can I accesmaps[forloop.counter ]?
– Majid Hojati
Nov 13 '18 at 19:14
But How can I acces
maps[forloop.counter ]?– Majid Hojati
Nov 13 '18 at 19:14
But How can I acces
maps[forloop.counter ]?– Majid Hojati
Nov 13 '18 at 19:14
add a comment |
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use
{% else %}?– Alex
Nov 13 '18 at 18:18
No I can not use else, as I want step my for +2
– Majid Hojati
Nov 13 '18 at 18:19