I'd like to list all active products (from all or a specific category) in a template. I've looked almost everywhere and I simply cannot find a way to do this.
I want to display them in the footer of the shop (10 products from 1 category). That means show them without selecting product category.
Is this even possible? Products are only listed in the category template...
I'm using Satchmo 0.9.2
EDIT: Somehow I've missed this:
http://www.satchmoproject.com/docs/dev/customization.html
So it's solved...
Thank you!
this is a more general answer since there isnt any answer yet, so dont beat me. You also have to know that I never used satchmo, I never had a look at it.
But despite this, if I had to deal with your situation, I would have a look at the source code.
You might find answers there to develop something custom for your situation. This can be a tricky task but at least its worth a try.
There have to be models which store the data for your product and categories. Have a look at them and the views that retrieve the products from the database to render them. Also a look into the database cant hurt (think of phpmyAdmin to have a nice webbased interface).
It can be helpful to fire up your ./manage.py shell, import your/satchmos product and category models and play around with them.
A possible solution then could be to write a custom context_processor which retrieves the needed products/categories and passes these products from a category to your footer on a more global basis. Have a look here https://docs.djangoproject.com/en/1.3/ref/templates/api/#writing-your-own-context-processors. Maybe a custom middleware could also be a possibility. https://docs.djangoproject.com/en/dev/topics/http/middleware/#writing-your-own-middleware
I hope this helps. At least worth a try :)
Related
I'm new in Django and I'm giving myself a big headhache trying to structure this query.
I have a BaseProfile connected with a OneToOne field to User.
I'm specializing the profile in CustomerProfile connected with a OneToOne field to BaseProfile.
A CustomerProfile has a ManyToMany relationship with other CustomerProfile (so itself) through a RelatedCustomer model.
In the RelatedCustomer I specify the from_customer and to_customer Foreign Keys.
Maybe with an image you can understand better.
My problem:
Given a user.id I need to know all the other user.id of the customers that he is connected to (so passing through from_customer and to_customer):
So basically, first I need to dig from User to RelatedCustomer using reverse lookup, take all the set, and then going back to know the user.id of each customer in the set.
EDIT2:
What I've reached so far:
# This gives me back a customer profile given a user.id (2)
cm = CustomerProfile.objects.get(base_profile__user=2)
# M2M lookup. Given one customer returns all the RelatedCustomer relations
# that he has as a part of the 'from' M2M
cm.from_photographer.all()
Chaining the previous two: given a user.id I obtain a queryset of CustomerRelated relations:
rel = CustomerProfile.objects.get(base_profile__user=2).from_photographer.all()
This gives me back something like:
[<CustomerRelated: from TestCustomer4 to TestCustomer2 >,
<CustomerRelated: from TestCustomer4 to TestCustomer3 >]
Where in this case the user having a user.id=2 is the TestCustomer4.
My question:
So far so good, but now having this set how can I get all the user.id of the to_customer?
That is, how do I get the user.id of TestCustomer2 and TestCustomer3?
Firstly, this is not how you query the database in django. Secondly (since you're learning), it would be good to point out that you can run dbshell to try out different things. And lastly, this kind of problem is described in the documentation.
I am telling you this, because as a beginner, I also felt that it was a little difficult to navigate through the whole thing. The best way to find things is just to use google, and add a django at the end.
I know how you feel, the documentation search sucks, right? Heh, I feel you, that is why you always search the way I described it. Once you get a hang of the documentation, you will feel that the documentation title page is a little more intuitive.
Okay, so now to the answer:
To access a ManyToMany, OneToOne or ForeignKey field, you need to use a __ commonly known as dunder.
So, this is how I would go about doing this. Please note that there are other ways, and potentially better ways of doing this:
thing_I_want = RelatedCustomer.objects.get(to_customer__id=2)
Note, however that if you wanted to get a list of customers you would use filter(). Here is an example (which uses number of purchases as an example):
things_I_want = RelatedCustomer.objects.filter(to_customer__no_of_purchases=16)
Also note that the great thing about filter is that you stack one filter on top of another. You can read more about these features in the documentation link I provide below.
That will get you what you want. Now, you might have more queries regarding this, and how it all works together. Not to fear, please click this documentation link to check it out.
EDIT
Seems like what you want to do can be done by django, but if you want to do it using sql, then that is possible too. For example, SomeModel.objects.raw("SQL_HERE"). The name of the tables are usually <app>_<model>.
However, what you are asking can also be done in django, using the ORM. But it will be tricky.
Ok, as usual whenever you get the answer it always look much more easier than what you were expecting.
I guess this worked for me:
User.objects.filter(base_profile__customer_profile__to_customer__in=
User.objects.get(id=2).base_profile.customer_profile.from_customer.all())
Many thanks to #Games Brainiac
I have a set of top-level configuration data fields that I want to be able to set within django admin for each deployment of my django app. I only want one set of these.
Example fields: site_logo, contact_person, address, facebook_url, twitter_url
The problem is that Django Admin is geared towards tables (lists) of models, so its not a good fit for this type of singular configuration model. I really only want one of these models to exist for the whole site, and to be able to click into it from admin and edit the various fields.
It seems i've come across a 3rd party app in the past to accomplish this but can't find it anywhere. Part of the problem is I'm finding it difficult to find the right words to google. Any ideas?
It looks like django-values will do what you're looking for.
Other possible contenders:
http://github.com/sciyoshi/django-dbsettings (doesn't look maintained)
http://github.com/jqb/django-settings
Have a look at django-livesettings it sounds like it might fit.
Not that i have used it, but i have heard good things about django-constance.
And there are even some more options listed in the Configuration-Grid on Django Packages.
Hi everyone I have a few questions about the django admin.
First the relevant details. I currently have Client, Printer, Cartridge, and Order models.
The Printer model has a ManyToManyField to the Cartridge model, which would allow you to select all the cartridges that can be used with that printer.
The Cliente has a ManyToManyField to the printers which they own.
1) I want to create an Order through the Django admin which lets your specify the Client, a dicount, and multiple cartridges through a ManyToManyField. This is getting kinda tricky because I have to do it through another table that specifies whether it's a new Cartridge or a refill.
2) I want the admin to filters the Cartridges to only show the ones that belong to the printers that they own.
3) Also I would like to have a field that holds the total price of their order, but it should calculate it based on how many cartridges they have added to the order. I don't know if this should be done by adding more of the same cartridge to the order or by having another field in the related table that specifies the quantity.
Can this be done in the admin or do I need to use a form? And if so how would I go about adding this to the admin? It seems difficult and probably something I will have to do in multiple parts since in order to filter the list of cartridges I have to know the client beforehand.
As far as I can see, no, it's not really possible. The development version has some methods for limiting foreign keys, but it doesn't seem to me that limiting based on the customer is possible, since it depends on separate foreign keys.
The best suggestion, if you're really bent on doing it in the admin form, would be to use Javascript to do it. You would still have to make AJAX calls to get lists of what printers customers had and what cartridges to show based on that, but it could be done. You would just specify the JS files to load with the Media class.
But I think that's more work than it's worth. The easiest way I would see to do it would be with Form Wizards. That way, you'd have a step to select the customer so on the next step you know what cartridges to show.
Hope that helps!
I've worked similar problems, and have come to the conclusion that in many cases like this, it's really better to write your own administration interface using forms than it is to try and shoehorn functionality into the admin which is not intended to be there.
As far as 3) goes, it depends on what your product base looks like. If you're likely to have customers ordering 50 identical widgets, you probably do want a quantity field. If customers are more likely to be ordering 2 widgets, one in red, one in blue, add each item separately to the manytomany field and group them in your order interface.
I'd like to create the top five best seller of the products in each month.
I've heard that the annotations must be used for this case but I don't know how to use it.
Will anybody be kind enough to help me ??
You need to provide much more information before anyone can provide you with a useful answer. Describe what you know, what you've tried, elaborate on what you hope to accomplish.
In the mean time, you can learn about django's annotate() function, and see a few examples by reading the aggregation documentation for django.
annotate is not the only way to do it. You could also use an extra aggregation, though it might not be very efficient, and this will rely on sql specific to your database. This approach will not work in App Engine, but should in a SQL compliant database.
For example, say you had a Product model and a SalesOrder model, where the SalesOrder model has a line item for each product_id and order_date in it.
top_products = Product.objects.extra(
select={'num_orders':'select count(product_id) from app_product where app_salesorder.order_date > thirty_days_ago and app_product.id = app_salesorder.product_id'})
.order_by('-num_orders')[:5]
I need to retrieve institution name by going through an intermediate table. My view gets all the values except this one or at least it is not displaying in the template. Can someone please help with either revising my view or template statement?
http://dpaste.com/122204/
Thank you,
May
To debug these kinds of problems do the following.
Run the view function's processing separate from any template or any other parts of Django.
Either interactively or with a VERY simple script run your query. For example, use a simple script like this to explore your model and make sure your model really works.
from app.models import Contact, Institution, Whatever
results= Researchproject.objects.filter(restitlestrip__icontains='something').distinct()
for project in results:
print project.contact
print contact.institutionname
Note several things about your simple script and your template.
Case matters. Project != project.
Navigation matters. In the script shown above, contact is undefined. project.contact, however, is defined. Perhaps that's what you meant.
Your model appears incomplete. The Contactintermed table doesn't seem to be used anywhere in your query or view. It may have FK's to other tables, but you don't seem to have a sensible navigation from Project through Contact to Contactinterma to Institution.
Get your model to be correct in a stand-alone script. Add the template processing later.
Also, please post all the code here on StackOverflow. Chasing your code down all over the internet is a huge pain. It's far easier to simply ignore your question than it is to chase down your code.