We Keep Coding

How to retrieve 1 table objects that is related to 2 ForeignKey?

I would like to show in my template in each cell the name ("nombre") of the client ("cliente") with his payment {{pago.cantidad_pagada}} , the problem is that as I am doing it {{presupuesto.cliente.nombre}}, I show all the names that I have in my table and they are repeated in each of the cells, I imagine that it is due to the use of "for", but I don't know of another way to display the data.
presupuestos.html
<tbody>
{% for pago in pagos %}
<tr>
<td>
{% for presupuesto in presupuestos %}
{{presupuesto.cliente.nombre}}
{% endfor %}
</td>
<td>
{{pago.cantidad_pagada}}
</td>
</tr>
{% endfor%}
</tbody>
pagos/models.py
class Pagos(models.Model):
numero_transaccion=models.IntegerField()
estimate=models.ForeignKey(Presupuestos, on_delete=models.SET_NULL, null=True)
def __str__(self):
return f'{self.numero_transaccion}'
presupuestos/models.py
class Presupuestos(models.Model):
cliente= models.ForeignKey(Clientes, on_delete=models.SET_NULL, null=True)
def __str__(self):
return f'{self.cliente}'
clientes/models.py
class Clientes(models.Model):
nombre = models.CharField(max_length=200, blank=True)
def __str__(self):
return f'{self.nombre}'
views.py
def presupuestosIndex(request):
presupuestos = Presupuestos.objects.all()
pagos=Pagos.objects.all()
return render(request, "Presupuestos/presupuestos.html", {'presupuestos':presupuestos,'pagos':pagos})

You have a foreign key estimate from Pagos to Presupuestos. If that's the relationship you wish to display for each pago you would do
<tbody>
{% for pago in pagos %}
<tr>
<td>
{{pago.estimate.cliente.nombre}}
</td>
<td>
{{pago.cantidad_pagada}} <! not in the models in the question -->
</td>
</tr>
{% endfor%}
</tbody>

Get value/state of checkbox for each row in a Django when POST

I want to display a table with :
on rows: the date for each weekday (calculate in my views.py)
on columns: the Mealselection of an user.
I can get value from models and display it :
https://i.imgur.com/TyvI0DH.png
But when i look source code on the page i see https://i.imgur.com/wY0QC62l.png
So obviously it does not work when i try to save the user choice because it will update only one date, today for exemple, since there are the same form id i think.
I try with a formset but i can't pass initial value to the template "selection_template.html" (i try with the exemple below but don't work because i need to display the user selection in relation with date of weekday.
formset = ArticleFormSet(initial=[{'title': "Form %d" % (i+1),
'pub_date': datetime.date.today()} for i in range(10)])
I know how to display multi form using formset but don't know how to pass value to the template.
models.py
class MealSelection(models.Model):
user = models.ForeignKey('User', on_delete=models.CASCADE)
date = models.DateField(auto_now_add=True)
salad = models.BooleanField(default=False)
meal = models.BooleanField(default=False)
sandwich = models.BooleanField(default=False)
forms.py
class GetUserMeal(forms.ModelForm):
class Meta:
model = MealSelection
fields = ['meal', 'salad', 'sandwich']
widget = forms.CheckboxInput(
attrs={
'name': 'choices'
}
)
views.py
for day in weekDay:
try:
userSelection = MealSelection.objects.get(user=u1,date=startWeek + datetime.timedelta(days=daysCount))
userSelection = {'meal':userSelection.meal, 'salad':userSelection.salad, 'sandwich':userSelection.sandwich}
except:
userSelection = {'meal':False, 'salad':False, 'sandwich':False}
userSelection = forms.GetUserMeal(userSelection)
dateDayCorresp[day] = {'date':startWeek + datetime.timedelta(days=daysCount),'userSelection': userSelection}
daysCount += 1
selection_template.html
<form method="post">
<table class="table table-hover table-bordered vertical-align">
<thead>
<tr class="table-primary">
<th rowspan="2">Jour</th>
<th colspan="3">Repas</th>
</tr>
<tr class="table-success">
<th scope="col">Repas</th>
<th scope="col">Salade</th>
<th scope="col">Sandwich</th>
</tr>
</thead>
<tbody>
{% csrf_token %}
{% for day in dateDayCorresp.items %}
<tr>
<th scope="row" class="table-warning">
{{day.0}} ({{day.1.date}})
<!-- {{day.1.userSelection}} -->
</th>
{% for field in day.1.userSelection %}
<td>
<label>{{ field }}</label>
</td>
{% endfor %}
</tr>
{% endfor %}
</table>
<button type="submit" class="btn btn-primary btn-lg btn-block fixed-bottom" id="buttonSave">Save</button>
</form>

As I click a link (which is a country name) I have the list of all cities, even from other countries. How to fix it?

I have links (which are list of the countries) when I click (for example) "USA" I get list of the cities from other countries too. But I only want the list of the cities in the USA.
Here is my github link. You are welcome to clone and play with it.
https://github.com/ualmaz/post
I tried to filter that like this. queryset = Post.objects.all().values_list(
'city', flat=True).distinct()
But it did not work.
This is my views.py
def cities(request):
queryset = Post.objects.all().values_list(
'city', flat=True).distinct()
context = {
'cities': queryset
}
return render(request, 'users/cities.html', context)
my models.py
class User(AbstractUser):
first_name = models.CharField(verbose_name="First name", max_length=255)
last_name = models.CharField(verbose_name="First name", max_length=255)
country = models.CharField(verbose_name="Country name", max_length=255)
city = models.CharField(verbose_name="City name", max_length=255)
email = models.EmailField(verbose_name="Email", max_length=255)
def __str__(self):
return self.username
class Post(models.Model):
title = models.CharField(max_length=255)
country = models.CharField(max_length=255)
city = models.CharField(max_length=255)
address = models.CharField(max_length=255)
email = models.EmailField(max_length=255)
phone = models.CharField(max_length=255)
website = models.URLField(max_length=255)
date_posted = models.DateTimeField(default=timezone.now)
author = models.ForeignKey(User, on_delete=models.CASCADE)
def __str__(self):
return self.title
def get_absolute_url(self):
return reverse('users:blog')
my countries.html (it contains countries list)
{% extends 'shared/base.html' %}
{% load staticfiles %}
{% block content %}
<div class="content-section p-5 mt-5 pl-4">
<table class="table table-hover text-left col-sm-6" style="table-layout: fixed; word-wrap: break-word;">
<tbody>
<tr>
<th>No: </th>
<th>Countries: </th>
</tr>
</tbody>
</table>
{% for post in posts %}
<table class="table table-hover text-left col-sm-6" style="table-layout: fixed; word-wrap: break-word;">
<tbody>
<tr>
<td>{{ post.id }}</td>
<td>{{ post.country }}</td>
</tr>
</tbody>
</table>
{% endfor %}
{% endblock %}
</div>
This is my cities.html (This is where I am having the problem)
{% extends 'shared/base.html' %}
{% load staticfiles %}
{% block content %}
<div class="content-section p-5 mt-5 pl-4">
<table class="table table-hover text-left col-sm-12" style="table-layout: fixed; word-wrap: break-word;">
<tbody>
<tr>
<th style="width: 200px;">No: </th>
<th> Cities: </th>
</tr>
</tbody>
</table>
{% for city in cities %}
<table class="table table-hover text-left col-sm-12" style="table-layout: fixed; word-wrap: break-word;">
<tbody>
<tr>
<td style="width: 200px;">{{ post.pk }}</td>
<td>{{ city }}</td>
</tr>
</tbody>
</table>
{% endfor %}
{% endblock %}
</div>

Your problem is that you are not filtering by the country that you clicked on. In your view, you should pass country in as a parameter. You can then do Post.objects.filter(country=country).values_list('city', flat=True).distinct(), which filters posts by country instead of getting all of the posts.

How to show field from another table using Django ORM?

I have a problem showing fields from another table, where two tables have relationships.
This is my first model:
class DataPribadiSiswa(models.Model):
SiswaID = models.AutoField(primary_key=True)
WaliKelasID = models.CharField(max_length=11, blank=True, null=True)
My second model:
class transaksi_kas(models.Model):
id_kas = models.AutoField(primary_key=True)
siswaID_trans = models.ForeignKey(DataPribadiSiswa, null=True, blank=True)
kelas = models.CharField(max_length=1, null=True, blank=True)
This is my views.py:
def transaksi_index(request):
transaksi = {}
transaksi['transaksikas'] = transaksi_kas.objects.select_related('siswaID_trans')
return render(request, 'kastransaksi/transaksi_index.html', transaksi)
This is the template:
<table id="simple-table" class="table table-striped table-bordered table-hover">
<tr>
<th>No.</th>
<th>Nama</th>
<th>Wali Murid</th>
<th>Kelas</th>
</tr>
{% for kas in transaksikas%}
<tr>
<td>{{ forloop.counter }}</td>
<th>{{ kas.siswaID_trans }}</th>
<td>{{ kas.WaliKelasID }}</td>
<td>{{ kas.kelas }}</td>
</tr>
{% endfor %}
</table>
How do I show {{ kas.WaliKelasID }} from DataPribadiSiswa?

I think you mean to do the following
{{ kas.siswaID_trans.WaliKelasID }}

transaksi['transaksikas'] = transaksi_kas.objects.select_related('siswaID_trans') after this you have to make query get or filter or other.
Example:
transaksi['transaksikas'] = transaksi_kas.objects.select_related('siswaID_trans').get(id=id)
or
transaksi['transaksikas'] = transaksi_kas.objects.select_related('siswaID_trans').filter(your query)
this is link

query set on model with setattr

class Product(models.Model):
name = models.CharField(max_length=50)
desc = models.CharField(max_length=50)
def __unicode__(self):
return self.name
class ProductModels(models.Model):
product = models.ForeignKey(Product)
name = models.CharField(max_length=50)
price = IntegerField(max_length=50)
def __unicode__(self):
return self.name
class Sold(model.Model)
product = models.ForeignKey(Product)
model_name = models.ForeignKey(ProductModels)
sold_date = models.DateField()
model_qty = models.IntegerField()
def __unicode__(self):
return self.sold_date
this is with reference to my previous question( that problem is solved)
what i am trying to find out is how many models have been sold from Jan to Dec for the particular product.
so far i have done this, i know it's little crude. but it would help he if it written correctly:
views.py
allmonths = ['jan' , ....., 'dec']
products = Products.objects.all()
for each_product in products :
models = ProductModels.objects.filter(product = each_product)
for each_model in models:
for months in allmonths :
att_name = str(each_model.model_name) + str(months)
print 'attname %s' % att_name
val = sold.objects.filter(product = each_product ,
model_name = each_model ,(sold_date =(allmonths.indesx(month) + 1))) .aggregate(qty=Sum('model_qty'))
val = temp(val['qty'])
setattr(each_product, att_name , val)
I am not sure if this correct or not , but this approach has worked earlier. i used getattribute template tag from here.
This is how my template looks like :
{% for record in products %}
<tr class="odd gradeX">
<td><span class="label label-warning">{{ record.name }}</span></td>
<td>
<table class="table table-striped table-bordered table-hover" id="pipelineTbl">
{% for model in record.ProductModels_set.all %}
<tr class="odd gradeX">
<td>
<span class="label label-success">{{ model }}</span>
</td>
</tr>
{% endfor %}
</table>
</td>
{% for months in allmonths %}
<td>
<table class="table table-striped table-bordered table-hover" id="pipelineTbl3">
{% for model in record.ProductModels_set.all %}
{% with model|add:months as val %}
<tr>
<td>{{ record|getattribute:val }}</td>
</tr>
{% endwith %}
{% endfor %}
</table>
</td>
{% endfor %}
</tr>
{% endfor %}

You can make the following query:
product = some_product()
year = 2013
product_sells = Sold.objects.filter(product=product, sold_date__year=year)
If you want to know how many individual sells do this:
product_sells.count()
If you want to sum the product sold quantities:
from django.db.models import Sum
product_sells.Sum('model_qty')
In general avoid iterating over Products.objects.all(), as it's really expensive on database and memory.