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Django Validity day counter
Does Django scale?django - inlineformset_factory with more than one ForeignKeyDjango ImageField overwrites existing path when emptydjango models request get id error Room matching query does not existDjango-Rest-Framework - How to serialize queryset from an unrelated model as nested serializerHow to expose some specific fields of model_b based on a field of model_a?How to set dynamic initial values to django modelform fieldHow to define Mode with generic ForeignKey in DjangoDjango: required field even with true=blank on form submisionHow to check if Django Signal works?
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in my app users are able to create posts which have a validity of 100 days. Now i want to display the user how many days are left until his post gets deleted. im currently solving the actual deletion of the post by a celery job which is working greate. My question is only about how to display the number until the validity runs out.
In my opinion i only need a IntegerField with the validity in days and substract it from the creation date.
is there a pratical way to do this?
models.py
class Post(models.Model):
author = models.ForeignKey(User, on_delete=models.CASCADE)
title = models.CharField(verbose_name="Post Title", max_length=40)
content = models.TextField(verbose_name="Post Content", max_length=5000)
tag = models.CharField(verbose_name="Tags/Meta - (sep. by comma)", max_length=50, blank=True)
category = models.ForeignKey(Category, verbose_name="Category", on_delete=models.CASCADE, null=True)
post_type = models.CharField(default='Free', editable=False, max_length=4)
postattachment = fields.FileField(
verbose_name="Post Attachment",
blank=True,
null=True,
upload_to=get_file_path_user_uploads,
validators=[file_extension_postattachment, file_size_postattachment]
)
postcover = fields.ImageField(
null=True,
blank=True,
upload_to=get_file_path_user_uploads,
validators=[default_image_size, default_image_file_extension],
dependencies=[FileDependency(processor=ImageProcessor(
format='PNG', quality=99, scale='max_width': 700, 'max_height': 700))])
up_vote = models.IntegerField(verbose_name='Post Up-Vote(s)', default=0)
down_vote = models.IntegerField(verbose_name='Post Down-Vote(s)', default=0)
published_date = models.DateField(auto_now_add=True, null=True)
thanks and kind regards
UPDATE
models.py
...
down_vote = models.IntegerField(verbose_name='Post Down-Vote(s)', default=0)
published_date = models.DateField(auto_now_add=True, null=True)
def days_remaining(published_date):
"""
Returns the remaining days from 'published_date' + 100 days until today.
"""
return published_date + datetime.timedelta(days=100) - datetime.time.today()
template.html
...
<td> post.days_remaining </td>
....
python django
asked Mar 9 at 9:10
VenomVenom
95110
add a comment |
in my app users are able to create posts which have a validity of 100 days. Now i want to display the user how many days are left until his post gets deleted. im currently solving the actual deletion of the post by a celery job which is working greate. My question is only about how to display the number until the validity runs out.
In my opinion i only need a IntegerField with the validity in days and substract it from the creation date.
is there a pratical way to do this?
models.py
class Post(models.Model):
author = models.ForeignKey(User, on_delete=models.CASCADE)
title = models.CharField(verbose_name="Post Title", max_length=40)
content = models.TextField(verbose_name="Post Content", max_length=5000)
tag = models.CharField(verbose_name="Tags/Meta - (sep. by comma)", max_length=50, blank=True)
category = models.ForeignKey(Category, verbose_name="Category", on_delete=models.CASCADE, null=True)
post_type = models.CharField(default='Free', editable=False, max_length=4)
postattachment = fields.FileField(
verbose_name="Post Attachment",
blank=True,
null=True,
upload_to=get_file_path_user_uploads,
validators=[file_extension_postattachment, file_size_postattachment]
)
postcover = fields.ImageField(
null=True,
blank=True,
upload_to=get_file_path_user_uploads,
validators=[default_image_size, default_image_file_extension],
dependencies=[FileDependency(processor=ImageProcessor(
format='PNG', quality=99, scale='max_width': 700, 'max_height': 700))])
up_vote = models.IntegerField(verbose_name='Post Up-Vote(s)', default=0)
down_vote = models.IntegerField(verbose_name='Post Down-Vote(s)', default=0)
published_date = models.DateField(auto_now_add=True, null=True)
thanks and kind regards
UPDATE
models.py
...
down_vote = models.IntegerField(verbose_name='Post Down-Vote(s)', default=0)
published_date = models.DateField(auto_now_add=True, null=True)
def days_remaining(published_date):
"""
Returns the remaining days from 'published_date' + 100 days until today.
"""
return published_date + datetime.timedelta(days=100) - datetime.time.today()
template.html
...
<td> post.days_remaining </td>
....
python django
asked Mar 9 at 9:10
VenomVenom
95110
add a comment |
in my app users are able to create posts which have a validity of 100 days. Now i want to display the user how many days are left until his post gets deleted. im currently solving the actual deletion of the post by a celery job which is working greate. My question is only about how to display the number until the validity runs out.
In my opinion i only need a IntegerField with the validity in days and substract it from the creation date.
is there a pratical way to do this?
models.py
class Post(models.Model):
author = models.ForeignKey(User, on_delete=models.CASCADE)
title = models.CharField(verbose_name="Post Title", max_length=40)
content = models.TextField(verbose_name="Post Content", max_length=5000)
tag = models.CharField(verbose_name="Tags/Meta - (sep. by comma)", max_length=50, blank=True)
category = models.ForeignKey(Category, verbose_name="Category", on_delete=models.CASCADE, null=True)
post_type = models.CharField(default='Free', editable=False, max_length=4)
postattachment = fields.FileField(
verbose_name="Post Attachment",
blank=True,
null=True,
upload_to=get_file_path_user_uploads,
validators=[file_extension_postattachment, file_size_postattachment]
)
postcover = fields.ImageField(
null=True,
blank=True,
upload_to=get_file_path_user_uploads,
validators=[default_image_size, default_image_file_extension],
dependencies=[FileDependency(processor=ImageProcessor(
format='PNG', quality=99, scale='max_width': 700, 'max_height': 700))])
up_vote = models.IntegerField(verbose_name='Post Up-Vote(s)', default=0)
down_vote = models.IntegerField(verbose_name='Post Down-Vote(s)', default=0)
published_date = models.DateField(auto_now_add=True, null=True)
thanks and kind regards
UPDATE
models.py
...
down_vote = models.IntegerField(verbose_name='Post Down-Vote(s)', default=0)
published_date = models.DateField(auto_now_add=True, null=True)
def days_remaining(published_date):
"""
Returns the remaining days from 'published_date' + 100 days until today.
"""
return published_date + datetime.timedelta(days=100) - datetime.time.today()
template.html
...
<td> post.days_remaining </td>
....
python django
asked Mar 9 at 9:10
VenomVenom
95110
in my app users are able to create posts which have a validity of 100 days. Now i want to display the user how many days are left until his post gets deleted. im currently solving the actual deletion of the post by a celery job which is working greate. My question is only about how to display the number until the validity runs out.
In my opinion i only need a IntegerField with the validity in days and substract it from the creation date.
is there a pratical way to do this?
models.py
class Post(models.Model):
author = models.ForeignKey(User, on_delete=models.CASCADE)
title = models.CharField(verbose_name="Post Title", max_length=40)
content = models.TextField(verbose_name="Post Content", max_length=5000)
tag = models.CharField(verbose_name="Tags/Meta - (sep. by comma)", max_length=50, blank=True)
category = models.ForeignKey(Category, verbose_name="Category", on_delete=models.CASCADE, null=True)
post_type = models.CharField(default='Free', editable=False, max_length=4)
postattachment = fields.FileField(
verbose_name="Post Attachment",
blank=True,
null=True,
upload_to=get_file_path_user_uploads,
validators=[file_extension_postattachment, file_size_postattachment]
)
postcover = fields.ImageField(
null=True,
blank=True,
upload_to=get_file_path_user_uploads,
validators=[default_image_size, default_image_file_extension],
dependencies=[FileDependency(processor=ImageProcessor(
format='PNG', quality=99, scale='max_width': 700, 'max_height': 700))])
up_vote = models.IntegerField(verbose_name='Post Up-Vote(s)', default=0)
down_vote = models.IntegerField(verbose_name='Post Down-Vote(s)', default=0)
published_date = models.DateField(auto_now_add=True, null=True)
thanks and kind regards
UPDATE
models.py
...
down_vote = models.IntegerField(verbose_name='Post Down-Vote(s)', default=0)
published_date = models.DateField(auto_now_add=True, null=True)
def days_remaining(published_date):
"""
Returns the remaining days from 'published_date' + 100 days until today.
"""
return published_date + datetime.timedelta(days=100) - datetime.time.today()
template.html
...
<td> post.days_remaining </td>
....
python django
python django
asked Mar 9 at 9:10
VenomVenom
95110
asked Mar 9 at 9:10
VenomVenom
95110
edited Mar 9 at 9:47
Venom
asked Mar 9 at 9:10
VenomVenom
95110
asked Mar 9 at 9:10
VenomVenom
95110
asked Mar 9 at 9:10
VenomVenom
95110
95110
add a comment |
add a comment |
3 Answers
3
active
oldest
votes
You could do something like this:
models.py
from django.db import models
import datetime
# Create your models here.
class Post(models.Model):
author = models.ForeignKey(User, on_delete=models.CASCADE)
title = models.CharField(verbose_name="Post Title", max_length=40)
content = models.TextField(verbose_name="Post Content", max_length=5000)
tag = models.CharField(verbose_name="Tags/Meta - (sep. by comma)", max_length=50, blank=True)
category = models.ForeignKey(Category, verbose_name="Category", on_delete=models.CASCADE, null=True)
post_type = models.CharField(default='Free', editable=False, max_length=4)
postattachment = fields.FileField(
verbose_name="Post Attachment",
blank=True,
null=True,
upload_to=get_file_path_user_uploads,
validators=[file_extension_postattachment, file_size_postattachment]
)
postcover = fields.ImageField(
null=True,
blank=True,
upload_to=get_file_path_user_uploads,
validators=[default_image_size, default_image_file_extension],
dependencies=[FileDependency(processor=ImageProcessor(
format='PNG', quality=99, scale='max_width': 700, 'max_height': 700))])
up_vote = models.IntegerField(verbose_name='Post Up-Vote(s)', default=0)
down_vote = models.IntegerField(verbose_name='Post Down-Vote(s)', default=0)
published_date = models.DateField(auto_now_add=True, null=True)
@property
def remaining_days(self):
"""
Returns the remaining days defined as: 'published_date' + 100 days - today.
"""
return (self.published_date + datetime.timedelta(days=100) - datetime.date.today()).days
views.py
from django.views import generic
from .models import Post
class PostDetailView(generic.DetailView):
model = Post
template_name = "post_detail.html"
post_detail.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Post Detail</title>
</head>
<body>
<p><strong>Days remaining:</strong> post.remaining_days </p>
</body>
</html>
Screenshot:
answered Mar 9 at 9:31
Anton BärwaldAnton Bärwald
61129
add a comment |
Since you have published_date in your model you can find out the number of days it haad been published. For e.g.
from datetime import datetime
diff = datetime.now() - published_date
Now,if max_days = 100 (according to you) then you can simpy do max_days-diff.days will be your expected result.
I hope this helps you.
answered Mar 9 at 9:22
Anuj SubediAnuj Subedi
3318
add a comment |
You can define a method inside your model to calculate that like this:
class Post(models.Model):
# ...
published_date = models.DateTimeField(auto_now_add=True, null=True)
def get_time_diff(self):
current_time = datetime.datetime.now()
delta = current_time-self.published_date
return delta.days
use this method in your code or your template:
post = Post(...)
if post.get_time_diff > 30:
# do something
Update: if you want to calculate remaining days you can add another field in your model (for example days_threshold) that holds an integer of days like this:
class Post(models.Model):
# ...
days_threshold = models.IntegerField(default=100)
# ...
In your get_time_diff method you can write something like this:
def get_time_diff(self):
current_time = datetime.datetime.now()
delta = current_time-self.published_date
remaining_days = self.days_threshold - delta.days
if remaining_days >= 0
return remaining_days
return 0 # for non negative results in day
Or simply you can add days_threshold hard coded in your method like this:
def get_time_diff(self):
current_time = datetime.datetime.now()
delta = current_time-self.published_date
remaining_days = 100 - delta.days # I think this is bad practice but works
if remaining_days >= 0
return remaining_days
return 0 # for non negative results in day
answered Mar 9 at 9:17
shotgunnershotgunner
1,32421729
Thanks for you quick answere. This seems like what i needed. I simply want to display the left days in a table like: <th style="font-size: small">Validity</th> <td> post.get_time_diff </td> but how can i display it like that: first day: 100 second day: 99 third day: 98 ...
– Venom
Mar 9 at 9:34
@Venom I update my answer based on what you want
– shotgunner
Mar 9 at 10:21
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
You could do something like this:
models.py
from django.db import models
import datetime
# Create your models here.
class Post(models.Model):
author = models.ForeignKey(User, on_delete=models.CASCADE)
title = models.CharField(verbose_name="Post Title", max_length=40)
content = models.TextField(verbose_name="Post Content", max_length=5000)
tag = models.CharField(verbose_name="Tags/Meta - (sep. by comma)", max_length=50, blank=True)
category = models.ForeignKey(Category, verbose_name="Category", on_delete=models.CASCADE, null=True)
post_type = models.CharField(default='Free', editable=False, max_length=4)
postattachment = fields.FileField(
verbose_name="Post Attachment",
blank=True,
null=True,
upload_to=get_file_path_user_uploads,
validators=[file_extension_postattachment, file_size_postattachment]
)
postcover = fields.ImageField(
null=True,
blank=True,
upload_to=get_file_path_user_uploads,
validators=[default_image_size, default_image_file_extension],
dependencies=[FileDependency(processor=ImageProcessor(
format='PNG', quality=99, scale='max_width': 700, 'max_height': 700))])
up_vote = models.IntegerField(verbose_name='Post Up-Vote(s)', default=0)
down_vote = models.IntegerField(verbose_name='Post Down-Vote(s)', default=0)
published_date = models.DateField(auto_now_add=True, null=True)
@property
def remaining_days(self):
"""
Returns the remaining days defined as: 'published_date' + 100 days - today.
"""
return (self.published_date + datetime.timedelta(days=100) - datetime.date.today()).days
views.py
from django.views import generic
from .models import Post
class PostDetailView(generic.DetailView):
model = Post
template_name = "post_detail.html"
post_detail.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Post Detail</title>
</head>
<body>
<p><strong>Days remaining:</strong> post.remaining_days </p>
</body>
</html>
Screenshot:
answered Mar 9 at 9:31
Anton BärwaldAnton Bärwald
61129
add a comment |
You could do something like this:
models.py
from django.db import models
import datetime
# Create your models here.
class Post(models.Model):
author = models.ForeignKey(User, on_delete=models.CASCADE)
title = models.CharField(verbose_name="Post Title", max_length=40)
content = models.TextField(verbose_name="Post Content", max_length=5000)
tag = models.CharField(verbose_name="Tags/Meta - (sep. by comma)", max_length=50, blank=True)
category = models.ForeignKey(Category, verbose_name="Category", on_delete=models.CASCADE, null=True)
post_type = models.CharField(default='Free', editable=False, max_length=4)
postattachment = fields.FileField(
verbose_name="Post Attachment",
blank=True,
null=True,
upload_to=get_file_path_user_uploads,
validators=[file_extension_postattachment, file_size_postattachment]
)
postcover = fields.ImageField(
null=True,
blank=True,
upload_to=get_file_path_user_uploads,
validators=[default_image_size, default_image_file_extension],
dependencies=[FileDependency(processor=ImageProcessor(
format='PNG', quality=99, scale='max_width': 700, 'max_height': 700))])
up_vote = models.IntegerField(verbose_name='Post Up-Vote(s)', default=0)
down_vote = models.IntegerField(verbose_name='Post Down-Vote(s)', default=0)
published_date = models.DateField(auto_now_add=True, null=True)
@property
def remaining_days(self):
"""
Returns the remaining days defined as: 'published_date' + 100 days - today.
"""
return (self.published_date + datetime.timedelta(days=100) - datetime.date.today()).days
views.py
from django.views import generic
from .models import Post
class PostDetailView(generic.DetailView):
model = Post
template_name = "post_detail.html"
post_detail.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Post Detail</title>
</head>
<body>
<p><strong>Days remaining:</strong> post.remaining_days </p>
</body>
</html>
Screenshot:
answered Mar 9 at 9:31
Anton BärwaldAnton Bärwald
61129
add a comment |
You could do something like this:
models.py
from django.db import models
import datetime
# Create your models here.
class Post(models.Model):
author = models.ForeignKey(User, on_delete=models.CASCADE)
title = models.CharField(verbose_name="Post Title", max_length=40)
content = models.TextField(verbose_name="Post Content", max_length=5000)
tag = models.CharField(verbose_name="Tags/Meta - (sep. by comma)", max_length=50, blank=True)
category = models.ForeignKey(Category, verbose_name="Category", on_delete=models.CASCADE, null=True)
post_type = models.CharField(default='Free', editable=False, max_length=4)
postattachment = fields.FileField(
verbose_name="Post Attachment",
blank=True,
null=True,
upload_to=get_file_path_user_uploads,
validators=[file_extension_postattachment, file_size_postattachment]
)
postcover = fields.ImageField(
null=True,
blank=True,
upload_to=get_file_path_user_uploads,
validators=[default_image_size, default_image_file_extension],
dependencies=[FileDependency(processor=ImageProcessor(
format='PNG', quality=99, scale='max_width': 700, 'max_height': 700))])
up_vote = models.IntegerField(verbose_name='Post Up-Vote(s)', default=0)
down_vote = models.IntegerField(verbose_name='Post Down-Vote(s)', default=0)
published_date = models.DateField(auto_now_add=True, null=True)
@property
def remaining_days(self):
"""
Returns the remaining days defined as: 'published_date' + 100 days - today.
"""
return (self.published_date + datetime.timedelta(days=100) - datetime.date.today()).days
views.py
from django.views import generic
from .models import Post
class PostDetailView(generic.DetailView):
model = Post
template_name = "post_detail.html"
post_detail.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Post Detail</title>
</head>
<body>
<p><strong>Days remaining:</strong> post.remaining_days </p>
</body>
</html>
Screenshot:
answered Mar 9 at 9:31
Anton BärwaldAnton Bärwald
61129
You could do something like this:
models.py
from django.db import models
import datetime
# Create your models here.
class Post(models.Model):
author = models.ForeignKey(User, on_delete=models.CASCADE)
title = models.CharField(verbose_name="Post Title", max_length=40)
content = models.TextField(verbose_name="Post Content", max_length=5000)
tag = models.CharField(verbose_name="Tags/Meta - (sep. by comma)", max_length=50, blank=True)
category = models.ForeignKey(Category, verbose_name="Category", on_delete=models.CASCADE, null=True)
post_type = models.CharField(default='Free', editable=False, max_length=4)
postattachment = fields.FileField(
verbose_name="Post Attachment",
blank=True,
null=True,
upload_to=get_file_path_user_uploads,
validators=[file_extension_postattachment, file_size_postattachment]
)
postcover = fields.ImageField(
null=True,
blank=True,
upload_to=get_file_path_user_uploads,
validators=[default_image_size, default_image_file_extension],
dependencies=[FileDependency(processor=ImageProcessor(
format='PNG', quality=99, scale='max_width': 700, 'max_height': 700))])
up_vote = models.IntegerField(verbose_name='Post Up-Vote(s)', default=0)
down_vote = models.IntegerField(verbose_name='Post Down-Vote(s)', default=0)
published_date = models.DateField(auto_now_add=True, null=True)
@property
def remaining_days(self):
"""
Returns the remaining days defined as: 'published_date' + 100 days - today.
"""
return (self.published_date + datetime.timedelta(days=100) - datetime.date.today()).days
views.py
from django.views import generic
from .models import Post
class PostDetailView(generic.DetailView):
model = Post
template_name = "post_detail.html"
post_detail.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Post Detail</title>
</head>
<body>
<p><strong>Days remaining:</strong> post.remaining_days </p>
</body>
</html>
Screenshot:
answered Mar 9 at 9:31
Anton BärwaldAnton Bärwald
61129
edited Mar 9 at 10:07
answered Mar 9 at 9:31
Anton BärwaldAnton Bärwald
61129
answered Mar 9 at 9:31
Anton BärwaldAnton Bärwald
61129
answered Mar 9 at 9:31
Anton BärwaldAnton Bärwald
61129
61129
add a comment |
add a comment |
Since you have published_date in your model you can find out the number of days it haad been published. For e.g.
from datetime import datetime
diff = datetime.now() - published_date
Now,if max_days = 100 (according to you) then you can simpy do max_days-diff.days will be your expected result.
I hope this helps you.
answered Mar 9 at 9:22
Anuj SubediAnuj Subedi
3318
add a comment |
Since you have published_date in your model you can find out the number of days it haad been published. For e.g.
from datetime import datetime
diff = datetime.now() - published_date
Now,if max_days = 100 (according to you) then you can simpy do max_days-diff.days will be your expected result.
I hope this helps you.
answered Mar 9 at 9:22
Anuj SubediAnuj Subedi
3318
add a comment |
Since you have published_date in your model you can find out the number of days it haad been published. For e.g.
from datetime import datetime
diff = datetime.now() - published_date
Now,if max_days = 100 (according to you) then you can simpy do max_days-diff.days will be your expected result.
I hope this helps you.
answered Mar 9 at 9:22
Anuj SubediAnuj Subedi
3318
Since you have published_date in your model you can find out the number of days it haad been published. For e.g.
from datetime import datetime
diff = datetime.now() - published_date
Now,if max_days = 100 (according to you) then you can simpy do max_days-diff.days will be your expected result.
I hope this helps you.
answered Mar 9 at 9:22
Anuj SubediAnuj Subedi
3318
answered Mar 9 at 9:22
Anuj SubediAnuj Subedi
3318
answered Mar 9 at 9:22
Anuj SubediAnuj Subedi
3318
answered Mar 9 at 9:22
Anuj SubediAnuj Subedi
3318
3318
add a comment |
add a comment |
You can define a method inside your model to calculate that like this:
class Post(models.Model):
# ...
published_date = models.DateTimeField(auto_now_add=True, null=True)
def get_time_diff(self):
current_time = datetime.datetime.now()
delta = current_time-self.published_date
return delta.days
use this method in your code or your template:
post = Post(...)
if post.get_time_diff > 30:
# do something
Update: if you want to calculate remaining days you can add another field in your model (for example days_threshold) that holds an integer of days like this:
class Post(models.Model):
# ...
days_threshold = models.IntegerField(default=100)
# ...
In your get_time_diff method you can write something like this:
def get_time_diff(self):
current_time = datetime.datetime.now()
delta = current_time-self.published_date
remaining_days = self.days_threshold - delta.days
if remaining_days >= 0
return remaining_days
return 0 # for non negative results in day
Or simply you can add days_threshold hard coded in your method like this:
def get_time_diff(self):
current_time = datetime.datetime.now()
delta = current_time-self.published_date
remaining_days = 100 - delta.days # I think this is bad practice but works
if remaining_days >= 0
return remaining_days
return 0 # for non negative results in day
answered Mar 9 at 9:17
shotgunnershotgunner
1,32421729
Thanks for you quick answere. This seems like what i needed. I simply want to display the left days in a table like: <th style="font-size: small">Validity</th> <td> post.get_time_diff </td> but how can i display it like that: first day: 100 second day: 99 third day: 98 ...
– Venom
Mar 9 at 9:34
@Venom I update my answer based on what you want
– shotgunner
Mar 9 at 10:21
add a comment |
You can define a method inside your model to calculate that like this:
class Post(models.Model):
# ...
published_date = models.DateTimeField(auto_now_add=True, null=True)
def get_time_diff(self):
current_time = datetime.datetime.now()
delta = current_time-self.published_date
return delta.days
use this method in your code or your template:
post = Post(...)
if post.get_time_diff > 30:
# do something
Update: if you want to calculate remaining days you can add another field in your model (for example days_threshold) that holds an integer of days like this:
class Post(models.Model):
# ...
days_threshold = models.IntegerField(default=100)
# ...
In your get_time_diff method you can write something like this:
def get_time_diff(self):
current_time = datetime.datetime.now()
delta = current_time-self.published_date
remaining_days = self.days_threshold - delta.days
if remaining_days >= 0
return remaining_days
return 0 # for non negative results in day
Or simply you can add days_threshold hard coded in your method like this:
def get_time_diff(self):
current_time = datetime.datetime.now()
delta = current_time-self.published_date
remaining_days = 100 - delta.days # I think this is bad practice but works
if remaining_days >= 0
return remaining_days
return 0 # for non negative results in day
answered Mar 9 at 9:17
shotgunnershotgunner
1,32421729
Thanks for you quick answere. This seems like what i needed. I simply want to display the left days in a table like: <th style="font-size: small">Validity</th> <td> post.get_time_diff </td> but how can i display it like that: first day: 100 second day: 99 third day: 98 ...
– Venom
Mar 9 at 9:34
@Venom I update my answer based on what you want
– shotgunner
Mar 9 at 10:21
add a comment |
You can define a method inside your model to calculate that like this:
class Post(models.Model):
# ...
published_date = models.DateTimeField(auto_now_add=True, null=True)
def get_time_diff(self):
current_time = datetime.datetime.now()
delta = current_time-self.published_date
return delta.days
use this method in your code or your template:
post = Post(...)
if post.get_time_diff > 30:
# do something
Update: if you want to calculate remaining days you can add another field in your model (for example days_threshold) that holds an integer of days like this:
class Post(models.Model):
# ...
days_threshold = models.IntegerField(default=100)
# ...
In your get_time_diff method you can write something like this:
def get_time_diff(self):
current_time = datetime.datetime.now()
delta = current_time-self.published_date
remaining_days = self.days_threshold - delta.days
if remaining_days >= 0
return remaining_days
return 0 # for non negative results in day
Or simply you can add days_threshold hard coded in your method like this:
def get_time_diff(self):
current_time = datetime.datetime.now()
delta = current_time-self.published_date
remaining_days = 100 - delta.days # I think this is bad practice but works
if remaining_days >= 0
return remaining_days
return 0 # for non negative results in day
answered Mar 9 at 9:17
shotgunnershotgunner
1,32421729
You can define a method inside your model to calculate that like this:
class Post(models.Model):
# ...
published_date = models.DateTimeField(auto_now_add=True, null=True)
def get_time_diff(self):
current_time = datetime.datetime.now()
delta = current_time-self.published_date
return delta.days
use this method in your code or your template:
post = Post(...)
if post.get_time_diff > 30:
# do something
Update: if you want to calculate remaining days you can add another field in your model (for example days_threshold) that holds an integer of days like this:
class Post(models.Model):
# ...
days_threshold = models.IntegerField(default=100)
# ...
In your get_time_diff method you can write something like this:
def get_time_diff(self):
current_time = datetime.datetime.now()
delta = current_time-self.published_date
remaining_days = self.days_threshold - delta.days
if remaining_days >= 0
return remaining_days
return 0 # for non negative results in day
Or simply you can add days_threshold hard coded in your method like this:
def get_time_diff(self):
current_time = datetime.datetime.now()
delta = current_time-self.published_date
remaining_days = 100 - delta.days # I think this is bad practice but works
if remaining_days >= 0
return remaining_days
return 0 # for non negative results in day
answered Mar 9 at 9:17
shotgunnershotgunner
1,32421729
edited Mar 9 at 10:20
answered Mar 9 at 9:17
shotgunnershotgunner
1,32421729
answered Mar 9 at 9:17
shotgunnershotgunner
1,32421729
answered Mar 9 at 9:17
shotgunnershotgunner
1,32421729
1,32421729
Thanks for you quick answere. This seems like what i needed. I simply want to display the left days in a table like: <th style="font-size: small">Validity</th> <td> post.get_time_diff </td> but how can i display it like that: first day: 100 second day: 99 third day: 98 ...
– Venom
Mar 9 at 9:34
@Venom I update my answer based on what you want
– shotgunner
Mar 9 at 10:21
add a comment |
Thanks for you quick answere. This seems like what i needed. I simply want to display the left days in a table like: <th style="font-size: small">Validity</th> <td> post.get_time_diff </td> but how can i display it like that: first day: 100 second day: 99 third day: 98 ...
– Venom
Mar 9 at 9:34
@Venom I update my answer based on what you want
– shotgunner
Mar 9 at 10:21
Thanks for you quick answere. This seems like what i needed. I simply want to display the left days in a table like: <th style="font-size: small">Validity</th> <td> post.get_time_diff </td> but how can i display it like that: first day: 100 second day: 99 third day: 98 ...
– Venom
Mar 9 at 9:34
Thanks for you quick answere. This seems like what i needed. I simply want to display the left days in a table like: <th style="font-size: small">Validity</th> <td> post.get_time_diff </td> but how can i display it like that: first day: 100 second day: 99 third day: 98 ...
– Venom
Mar 9 at 9:34
@Venom I update my answer based on what you want
– shotgunner
Mar 9 at 10:21
@Venom I update my answer based on what you want
– shotgunner
Mar 9 at 10:21
add a comment |
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