You should use 'F' expression from django.db.models
So your expression would be like:
ProductSale.objects.all().filter(date_expires__lt = now().date).exclude(
date_purchased__gt = F('date_expires'))
Which roughly translates to
SELECT * FROM productsale WHERE date_expires < CURRENT_DATE AND NOT
You should use 'F' expression from django.db.models
So your expression would be like:
ProductSale.objects.all().filter(date_expires__lg =
now()).exclude(date_purchased__gt
= F('date_expires'))
On Tuesday, 18 August 2015 06:26:56 UTC+5:30, Lee Hinde wrote:
>
> Given this model, I want to find
Given this model, I want to find all ProductSale objects that have expired
and where the Person doesn't have a later (unexpired) purchase of the same
product.
class ProductSale(models.Model):
product = models.ForeignKey(Product)
person = models.ForeignKey(Person)
...
date_expires = mod
Hello,
I am trying to create a form that takes input needed for parent child
tables. I am unable to create records via post call.
It is a simple parent child relationship. I want to be able to create the
parent if it does not exist and create a child right after. I guess I am
not able to unders
Just making sure. Good luck!
-James
On Aug 17, 2015 1:25 PM, "Michael Herrmann" wrote:
> Yes, of course you're right James, sorry. My classes are actually named
> differently and I was just trying to get the idea across.
> M
>
> On 17 August 2015 at 22:23, James Schneider
> wrote:
>
>>
>>
>> Hi
Yes, of course you're right James, sorry. My classes are actually named
differently and I was just trying to get the idea across.
M
On 17 August 2015 at 22:23, James Schneider wrote:
>
>
> Hi gst,
>>
>> Instead of
>>
>> class Hotel(Place):
>> ...
>>
>> I ended up with
>>
>> class
Hi gst,
>
> Instead of
>
> class Hotel(Place):
> ...
>
> I ended up with
>
> class Hotel(object):
> place = models.OneToOneField(Place, primary_key=True)
>
> I used a OneToOneField instead of ForeignKey because there can only be one
> hotel in a Place.
>
>
>
Just to verify,
Hi folks
I just start learning and using mongoDB , it's looks like a really nice
replacement for mysql.
I was searching for 3rd party for using Mongo with django and I ends up with
django-mongodb-engine.
Has anybody test it?
I'm looking for personal experiences
--
You received this message beca
Task to be done in Django
Table structure:
- Movies
- id
- Title
- Description
- Featured image
- Movie length (in minutes)
- Movie release date
Example:
1 | Jurassic World | A movie about dinosaurs | 90 minutes | June 14 2015
2 | Kick | Salman Khan mo
Hi gst,
Instead of
class Hotel(Place):
...
I ended up with
class Hotel(object):
place = models.OneToOneField(Place, primary_key=True)
I used a OneToOneField instead of ForeignKey because there can only be one
hotel in a Place.
M
On 16 August 2015 at 16:22, gst wrote:
Hello,
I went through the tutorial with in mind to go through it again using it to
set up my small app.
I am making a simple app where users can search a large set of strings and
get a subset as a result. The only relevant search criteria is the first
and last character of the string.
So th
One interesting feature of YAML is the ability to have custom operators.
For example, with YAML used as a fixture, you might have an operator that
turns a hex string into a MongoDB ObjectId on read, or a date string into a
datetime object, meaning that you don't have to post process the data
read.
Hi Carl,
> I don't quite understand why the situation you describe requires
> duplicating models files. Is the canonical data storage now in Project B
> instead of Project A, and Project A gets the data via Project B's REST
> API? In that case, why does Project A need those models anymore?
Hi James,
I'm going to build a separated instance to provide only REST services to be
consumed by Project A. It's ok to use the same views to provide a REST
interface in API but in this case I need to remove models from project A,
right?
Thank you very much!
Em domingo, 16 de agosto de 2015 2
There is actually a workflow that feels inconsistent if we cannot easily
enforce validate_min & _max on the Formset of the contrib.Admin.
Example:
a) For model A, attach an Inline for model B (B having a ForeingKey to A),
with min_num < max_num
b) create an instance of A in the Admin interface: y
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