Re: Simple django api

[Jason]

you might want to read https://stackoverflow.com/help/how-to-ask, since the 
skill of knowing how to ask a good question is invaluable in life.  your 
original question doesn't contain any specifics about what you want, what 
you've done and what problem you're having.  Learn how to break a problem 
down into parts and solve them.  when you get stuck, ask a specific 
question about this thing, rather than a general 'show me how to do this' 
request.

In addition, a simple google search for "django api tutorial" returns 
thousands of quality results, including youtube videos,  that you could 
have availed yourself of.

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Re: This site can’t be reached 127.0.0.1 refused to connect.

[Илья Барков]

I had a similar problem in Firefox, in other browsers everything worked
well. Cleared the cache and cookies!
https://support.mozilla.org/en-US/kb/websites-dont-load-troubleshoot-and-fix-errors#w_the-problem-only-happens-with-certain-websites

2018-06-06 4:33 GMT+03:00 James Farris :

> What’s the actual error?
>
> Did you mean ALLOWED_HOSTS? If so you can just add:
> ALLOWED_HOSTS=[‘*’]
>
> On Tue, Jun 5, 2018 at 12:55 PM Jamie Roberts 
> wrote:
>
>> Hi,
>>
>> This is from memory and may not be your problem but ... I had to add
>> 127.0.0.1 to ALLOWED_USERS in settings.py
>>
>> Sent from my iPhone
>>
>> On 5 Jun 2018, at 16:38, Avitab Ayan Sarmah 
>> wrote:
>>
>> While going through the turolal 7 of the django project, couldn't connect
>> to the url.Please comment why my local host refused to connect
>>
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responsive html

[Musab Mohammed]

HI,

I am using css media query  in normal Html file and I am tying to convert 
it to django. So now i am not able to get responsive view. please let me 
know whats the solution.

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How do you receive group messages outside of consumer?

[hasan Infogeek]

Right now my application relies on async_to_sync(channel_layer.group_send) 
to send messages to the group
but I can't find a channel_layer.group_receive or equivalent function.

I can write a websocket client that connect to the group that will receive 
the messages but it would be better if i could use channel_layer to reduce 
complexity and increase reliability.

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Re: what does the below mentioned error means and how do i resolve this error.something is wrong with my admin.py file.Please comment:

[Mario R. Osorio]

Looks like you skiped a huge part of the tutorial. you might to go back...

On Thursday, June 7, 2018 at 11:08:15 AM UTC-4, Avitab Ayan Sarmah wrote:
>
> In windows powershell:
>
> ERRORS:
> : (admin.E108) The value of 
> 'list_display[0]' refers to 'question_text', which is not a callable, an 
> attribute of 'QuestionAdmin', or an attribute or method on 'polls.Question'.
> : (admin.E108) The value of 
> 'list_display[1]' refers to 'pub_date', which is not a callable, an 
> attribute of 'QuestionAdmin', or an attribute or method on 'polls.Question'.
> : (admin.E116) The value of 
> 'list_filter[0]' refers to 'pub_date', which does not refer to a Field.
>
> System check identified 3 issues (0 silenced).
>
> polls\models.py:
>
> import datetime
>
> from django.db import models
> from django.utils import timezone
>
>
> class Question(models.Model):
> #...
> def was_published_recently(self):
> now = timezone.now()
> return now - datetime.timedelta(days=1) <= self.pub_date <= now
> was_published_recently.admin_order_field = 'pub_date'
> was_published_recently.boolean = True
> was_published_recently.short_description = 'published recently?'
> class Choice(models.Model):
> #...
> def __str__(self):
> return self.choice_text
> question = models.ForeignKey(Question, on_delete=models.CASCADE)
> choice_text = models.CharField(max_length=200)
> votes = models.IntegerField(default=0)
>
>
> polls\admin.py:
>
>
> from django.contrib import admin
>
> from . models import Choice, Question
>
>
> class ChoiceInline(admin.TabularInline):
> model = Choice
> extra = 3
>
>
> class QuestionAdmin(admin.ModelAdmin):
> fieldsets = [
> (None,  {'fields': ['question_text']}),
> ('Date information',{'fields': ['pub_date'], 'classes': 
> ['collapse']}),
> ]
> inlines = [ChoiceInline]
> list_display = ('question_text', 'pub_date', 'was_published_recently')
> list_filter = ['pub_date']
>
> admin.site.register(Question, QuestionAdmin)
>
>
>

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Re: responsive html

[Dan Nepejchal]

Hi,

so if I understand it right you can use django template
https://docs.djangoproject.com/en/2.0/topics/templates/ and use your css
media query, then check how to serve static files
https://docs.djangoproject.com/en/2.0/howto/static-files/ sou about css is
in basic nothing change.

pá 8. 6. 2018 v 15:34 odesílatel Musab Mohammed 
napsal:

> HI,
>
> I am using css media query  in normal Html file and I am tying to convert
> it to django. So now i am not able to get responsive view. please let me
> know whats the solution.
>
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> .
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Re: what does the below mentioned error means and how do i resolve this error.something is wrong with my admin.py file.Please comment:

[Avitab Ayan Sarmah]

Can you tell me what is wrong in my admin.py file because from exception it
seems that list_display() is having something wrong which I am not able to
find out

On Fri 8 Jun, 2018, 7:23 PM Mario R. Osorio,  wrote:

> Looks like you skiped a huge part of the tutorial. you might to go back...
>
> On Thursday, June 7, 2018 at 11:08:15 AM UTC-4, Avitab Ayan Sarmah wrote:
>>
>> In windows powershell:
>>
>> ERRORS:
>> : (admin.E108) The value of
>> 'list_display[0]' refers to 'question_text', which is not a callable, an
>> attribute of 'QuestionAdmin', or an attribute or method on 'polls.Question'.
>> : (admin.E108) The value of
>> 'list_display[1]' refers to 'pub_date', which is not a callable, an
>> attribute of 'QuestionAdmin', or an attribute or method on 'polls.Question'.
>> : (admin.E116) The value of
>> 'list_filter[0]' refers to 'pub_date', which does not refer to a Field.
>>
>> System check identified 3 issues (0 silenced).
>>
>> polls\models.py:
>>
>> import datetime
>>
>> from django.db import models
>> from django.utils import timezone
>>
>>
>> class Question(models.Model):
>> #...
>> def was_published_recently(self):
>> now = timezone.now()
>> return now - datetime.timedelta(days=1) <= self.pub_date <= now
>> was_published_recently.admin_order_field = 'pub_date'
>> was_published_recently.boolean = True
>> was_published_recently.short_description = 'published recently?'
>> class Choice(models.Model):
>> #...
>> def __str__(self):
>> return self.choice_text
>> question = models.ForeignKey(Question, on_delete=models.CASCADE)
>> choice_text = models.CharField(max_length=200)
>> votes = models.IntegerField(default=0)
>>
>>
>> polls\admin.py:
>>
>>
>> from django.contrib import admin
>>
>> from . models import Choice, Question
>>
>>
>> class ChoiceInline(admin.TabularInline):
>> model = Choice
>> extra = 3
>>
>>
>> class QuestionAdmin(admin.ModelAdmin):
>> fieldsets = [
>> (None,  {'fields': ['question_text']}),
>> ('Date information',{'fields': ['pub_date'], 'classes':
>> ['collapse']}),
>> ]
>> inlines = [ChoiceInline]
>> list_display = ('question_text', 'pub_date', 'was_published_recently')
>> list_filter = ['pub_date']
>>
>> admin.site.register(Question, QuestionAdmin)
>>
>>
>> --
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Redirect Loops and 404 with Django Channels and runserver command

[Justin Lee]

I was just trying to integrate channels into an existing django/DRF project 
and I have been running into an issue where my original urls paths are 
breaking when I do runserver. My root index view leads to 301 infinite 
redirects loop and my other app views results in a 404. The Socket server 
is definitely up as I have tried to do the following in console. It is just 
the http views + routes that are somehow breaking



var chatSocket = new WebSocket('ws://' + window.location.host + '/');

chatSocket.onmessage = function(e) {

var data = JSON.parse(e.data);

var message = data['message'];

console.log(message)

}

chatSocket.send(JSON.stringify({'message': "Hello World"}));


OUTPUT:

VM862:4 Hello World



The app works when I remove "channels" from installed_apps

It also works if I try to run the asgi app through daphne directly

I just want the app to work in django dev runserver


I am using django auth backend with login_required for all my views.

I am fairly new to django and would love some help on this! 

my_app/urls.py

urlpatterns = [
path('users/', include('django.contrib.auth.urls')),
path('admin/', admin.site.urls),
path('api/', include('api.urls', namespace='api')),
url(r'^.*', index, name='index'),
]

my_app/routing.py

from channels.auth import AuthMiddlewareStackfrom channels.routing import 
ProtocolTypeRouter, URLRouterfrom django.urls import path
from api.consumer import EchoConsumer

application = ProtocolTypeRouter({
'websocket': AuthMiddlewareStack(
URLRouter([
path('', EchoConsumer)
])
)
})

Settings

# Application definitionINSTALLED_APPS = [
'channels',
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'django.contrib.postgres',
'django_extensions',
'rest_framework',
'rfs.apps.RfsConfig',
'api.apps.ApiConfig',
'import_export',
]
MIDDLEWARE = [
'django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

Versions

channels==2.1.1
daphne==2.1.2

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Re: responsive html

[Musab Mohammed]

Thank You.

On Friday, June 8, 2018 at 7:25:57 PM UTC+5:30, Dan Nepejchal wrote:
>
> Hi,
>
> so if I understand it right you can use django template 
> https://docs.djangoproject.com/en/2.0/topics/templates/ and use your css 
> media query, then check how to serve static files 
> https://docs.djangoproject.com/en/2.0/howto/static-files/ sou about css 
> is in basic nothing change.
>
> pá 8. 6. 2018 v 15:34 odesílatel Musab Mohammed  > napsal:
>
>> HI,
>>
>> I am using css media query  in normal Html file and I am tying to convert 
>> it to django. So now i am not able to get responsive view. please let me 
>> know whats the solution.
>>
>> -- 
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>> "Django users" group.
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>> .
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>> To view this discussion on the web visit 
>> https://groups.google.com/d/msgid/django-users/c13459bc-858a-4655-b800-ccd33c0bb602%40googlegroups.com
>>  
>> 
>> .
>> For more options, visit https://groups.google.com/d/optout.
>>
>

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Re: what does the below mentioned error means and how do i resolve this error.something is wrong with my admin.py file.Please comment:

['Anthony Flury' via Django users]

The errors are relatively obvious to be frank - see the responses below ...


On 08/06/18 14:56, Avitab Ayan Sarmah wrote:
Can you tell me what is wrong in my admin.py file because from 
exception it seems that list_display() is having something wrong which 
I am not able to find out


On Fri 8 Jun, 2018, 7:23 PM Mario R. Osorio, > wrote:


Looks like you skiped a huge part of the tutorial. you might to go
back...

On Thursday, June 7, 2018 at 11:08:15 AM UTC-4, Avitab Ayan Sarmah
wrote:

In windows powershell:

ERRORS:
: (admin.E108) The value of
'list_display[0]' refers to 'question_text', which is not a
callable, an attribute of 'QuestionAdmin', or an attribute or
method on 'polls.Question'.



In your list_display field (on your QuestionAdmin)  refers to a field 
'question_text' which doesn't exist on either the QuestionAdmin or the 
Question model; i.e. that field does not exist in either model.



: (admin.E108) The value of
'list_display[1]' refers to 'pub_date', which is not a
callable, an attribute of 'QuestionAdmin', or an attribute or
method on 'polls.Question'.

In your list_display field (on your QuestionAdmin)  refers to a field 
'pub_date' which doesn't exist on either the QuestionAdmin or the 
Question model; i.e. that field does not exist in either model.


: (admin.E116) The value of
'list_filter[0]' refers to 'pub_date', which does not refer to
a Field.

In your list_filter field (on your QuestionAdmin)  refers to a field 
'pub_date' which doesn't exist on either the QuestionAdmin or the 
Question model; i.e. that field does not exist in either model.


To be honest the error message you got says exactly what the problem is 
- the fields that you think exist don't exist. You need to check your 
models, and check the field names, spellings etc.




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email : *anthony.fl...@btinternet.com*
Twitter : *@TonyFlury *

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odd crash

[Larry Martell]

I have an app that uses 1.9. It will work fine for weeks and weeks,
and then out of the blue a page that has just worked will crash with
this:

Request Method: GET
Request URL:

Django Version: 1.9
Python Version: 2.7.5
Installed Applications:
['django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'core.data',
'core.alerts',
'core.reports',
'app.cdsem',
'app.semvision',
'app.developer',
'dispatch',
'ui',
'configuration']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
'middleware.LastSiteUrl']

Traceback:

File "/usr/lib/python2.7/site-packages/django/core/handlers/base.py"
in get_response
 174. response =
self.process_exception_by_middleware(e, request)
File "/usr/lib/python2.7/site-packages/django/core/handlers/base.py"
in get_response
 172. response = response.render()
File "/usr/lib/python2.7/site-packages/django/template/response.py" in render
 160. self.content = self.rendered_content
File "/usr/lib/python2.7/site-packages/django/template/response.py" in
rendered_content
 137. content = template.render(context, self._request)
File "/usr/lib/python2.7/site-packages/django/template/backends/django.py"
in render
 95. return self.template.render(context)
File "/usr/lib/python2.7/site-packages/django/template/base.py" in render
 204. with context.bind_template(self):
File "/usr/lib64/python2.7/contextlib.py" in __enter__
 17. return self.gen.next()

exceptions must be old-style classes or derived from BaseException, not str

Request Method: GET
Request URL:
Django Version: 1.9
Exception Type: TypeError
Exception Value:

exceptions must be old-style classes or derived from BaseException, not str

Exception Location:
/usr/lib/python2.7/site-packages/django/utils/module_loading.py in
import_string, line 23

If I go the exact same URL again it will work.

Anyone have any idea what could be causing this or how I can debug it further?

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