Python add when entries have the same name - python

I have a model with the registered sales of a publishing house.with the following code, I can get the name of the book and the quantity the client bought:
a=Sale.objects.all()
for b in a:
print(str(b.book) + ' ' + str(b.quantity))
So I get something like this:
Del mismo modo en el sentido contrario 15
Sobre el horror 1
Del mismo modo en el sentido contrario 5
Del mismo modo en el sentido contrario 2
Un lápiz labial para una momia 1
La cólera en los tiempos del amor 3
La cólera en los tiempos del amor 1
La cólera en los tiempos del amor 1
El tambor encantado 1
What I need now is a loop so every entry that has the same book name, sum or add that quantity number. Any ideas on how to accomplish this?


For Django, to do this entirely in the database, it sounds like you want an aggregation using .values():
for book, total_sales in Sale.objects.values('book').annotate(total_sales=Sum('quantity')).values_list('book', 'total_sales'):
print(book, total_sales)
The general case, if this wasn't only about Django, is to use a collections.Counter:
books_sold = collections.Counter()
for sale in Sale.objects.all():
books_sold[str(sale.book)] += b.quantity
for book, quantity in books_sold.items():
print(book, quantity)


If book is a ForeignKey to a Book model, it makes more sense to .annotate(…) [Django-doc] the Books instead:
from django.db.models import Sum
books = Book.objects.annotate(
total_quantity=Sum('sale__quantity')
)
for book in books:
print(f'{book} {book.total_quantity}')

Related

the phone number input in sqlite using fastapi and toetoise-orm

I' m creating a fastapi API usinging tortoise-orm and sqlite and the bloblem that i have is that in one of my models witch is "Member", i wanna have a possibility for the member to put their phone number with their country code bu i dont'n kwow how to handle that; I'm using "phon_num= fields.CharField(max_length=13)", I wonder how am I gonna allow only numbers to be put in that fields. tanks
#app.post("/members")
async def create_member(name:str, email:EmailStr, phon_num:str,adress:str):
member = await Member.create(name=name, email=email,phon_num=phon_num, adress=adress)
if member.phon_num.isnumeric:
member.save()
return member
else:
return {"status": "vous avez un probleme dans le remplissage de votre formulaire",
"detail": "votre numero ne doit contenir que des chiffre ansi que l'indicatif pay '+code pays', avant d'entrer le numero"}
I expected that the if statement could control either the input is a string witch contains only the number and verify if in that string there is a "+" character for the country code.

get SQLSERVER json and using in python

Guys can anyone help? I have a sqlserver json:
SELECT CEQ.CODCARGOEQ AS CODCARGO, INITCAP(ISNULL((CAR.DESCRCARGO), \'SEM DESCRICAO\')) AS DESCRICAO
FROM TFPCAR CAR
INNER JOIN AD_TBCARGOEQUIVALENTE CEQ
ON CEQ.CODCARGOEQ = CAR.CODCARGO
WHERE CAR.ATIVO = \'S\' AND CAR.CODCARGO > 0
FOR JSON PATH, ROOT(\'LISTACARGOS\')
That sql returns to me a follow json
{"LISTACARGOS":[{"CODCARGO":1,"DESCRICAO":"Advogado"},
{"CODCARGO":2,"DESCRICAO":"Agente De Limpeza"},
{"CODCARGO":3,"DESCRICAO":"Agente De Transporte"},
{"CODCARGO":4,"DESCRICAO":"Ajud De Manutenção"},{"CODCARGO":5,"DESCRICAO":"Ajud Farmacia"},{"CODCARGO":6,"DESCRICAO":"Ajudante De Fossa"},{"CODCARGO":7,"DESCRICAO":"Almoxarife"},{"CODCARGO":8,"DESCRICAO":"Analista Comercial"},{"CODCARGO":9,"DESCRICAO":"Analista De Complice"},{"CODCARGO":10,"DESCRICAO":"Analista De Dho"},{"CODCARGO":11,"DESCRICAO":"Analista De Pessoal"},{"CODCARGO":12,"DESCRICAO":"Analista De Projetos"},{"CODCARGO":13,"DESCRICAO":"Analista De Recursos Humanos"},{"CODCARGO":14,"DESCRICAO":"Analista De Ti"},{"CODCARGO":15,"DESCRICAO":"Analista Financeiro"},{"CODCARGO":16,"DESCRICAO":"Apoio Tecnico"},{"CODCARGO":17,"DESCRICAO":"Artificie Eletrônica"},{"CODCARGO":18,"DESCRICAO":"Asses.Tec.Juridico"},{"CODCARGO":19,"DESCRICAO":"Assist De Comunic E Marketing"},{"CODCARGO":20,"DESCRICAO":"Assist. Administrativo Senior"},{"CODCARGO":21,"DESCRICAO":"Assistente Administrativo"},{"CODCARGO":22,"DESCRICAO":"Assistente De Adm De Pessoas"},{"CODCARGO":23,"DESCRICAO":"Assistente Social"},
{"CODCARGO":487,"DESCRICAO":"Tecnico Social (Psic)"},{"CODCARGO":488,"DESCRICAO":"Tecnico Social Advogado"},{"CODCARGO":489,"DESCRICAO":"Tecnico Social I"},{"CODCARGO":490,"DESCRICAO":"Tecnico Social I Assistente Social"},{"CODCARGO":491,"DESCRICAO":"Tecnico Social I Psicologo"},{"CODCARGO":492,"DESCRICAO":"Tecnico Social Ii"},{"CODCARGO":493,"DESCRICAO":"Tecnico Social Ii Assistente Social"},{"CODCARGO":494,"DESCRICAO":"Tecnico Social Ii Psicologo"},{"CODCARGO":495,"DESCRICAO":"Tecnico Social Iii"},{"CODCARGO":496,"DESCRICAO":"Tecnico Social Iv"},{"CODCARGO":497,"DESCRICAO":"Tecnico Social Ix"},{"CODCARGO":498,"DESCRICAO":"Tecnico Social Psicologo"},{"CODCARGO":499,"DESCRICAO":"Tecnico Social V"},{"CODCARGO":500,"DESCRICAO":"Tecnico Social Vi"},{"CODCARGO":501,"DESCRICAO":"Tecnico Social Vii"},{"CODCARGO":502,"DESCRICAO":"Tecnico Social Viii"},{"CODCARGO":503,"DESCRICAO":"Tecnico Social X"},{"CODCARGO":504,"DESCRICAO":"Tecnico Social Xi"},{"CODCARGO":505,"DESCRICAO":"Tecnico Social Xii"},{"CODCARGO":506,"DESCRICAO":"Tecnico Social Xiii"},{"CODCARGO":507,"DESCRICAO":"Tecnico Social Xiv"},{"CODCARGO":508,"DESCRICAO":"Tecnico Social Xv"},{"CODCARGO":509,"DESCRICAO":"Técnico Terapeuta Ocupacional"},{"CODCARGO":510,"DESCRICAO":"Teledigifonista"},{"CODCARGO":511,"DESCRICAO":"Telefonista E Recepcionista"},{"CODCARGO":512,"DESCRICAO":"Tratorista"},{"CODCARGO":513,"DESCRICAO":"Varredor (A)"},{"CODCARGO":514,"DESCRICAO":"Viveirista Florestal"},{"CODCARGO":515,"DESCRICAO":"Motorista"},{"CODCARGO":516,"DESCRICAO":"Gestor Financeiro"},{"CODCARGO":517,"DESCRICAO":"Fonoaudiólogo"},{"CODCARGO":518,"DESCRICAO":"Pintor"},
{"CODCARGO":519,"DESCRICAO":"Op Sus Facil"},{"CODCARGO":520,"DESCRICAO":"Téc De Radiologia"},{"CODCARGO":521,"DESCRICAO":"Gerente De Compliance"},{"CODCARGO":522,"DESCRICAO":"Eletricista"},{"CODCARGO":523,"DESCRICAO":"Técnico Em Mecânica"},{"CODCARGO":524,"DESCRICAO":"Auxiliar De Conservação De Vias"},{"CODCARGO":525,"DESCRICAO":"Jornalista"},{"CODCARGO":526,"DESCRICAO":"Assessor Pedagogico"},{"CODCARGO":527,"DESCRICAO":"Oficial De Manutenção Civil"},{"CODCARGO":528,"DESCRICAO":"Zelador"},{"CODCARGO":529,"DESCRICAO":"Supervisor Geral"},{"CODCARGO":530,"DESCRICAO":"Coordenação De Contratos E Medição"},{"CODCARGO":531,"DESCRICAO":"Supervisor Administrativo"},{"CODCARGO":532,"DESCRICAO":"Nutricionista"},{"CODCARGO":533,"DESCRICAO":"Especialista Em Saúde"},{"CODCARGO":534,"DESCRICAO":"Analista Fiscal"},
{"CODCARGO":535,"DESCRICAO":"Assistente De Projetos Socioassistenciais"},
{"CODCARGO":536,"DESCRICAO":"Auxiliar Geral De Conservação De Vias Permanentes"}]}
I need do catch this full json in my python API, and for that i use the follow function:
def get_listcargo(myquery):
cursor = conn()
cursor.execute(myquery)
for row in cursor:
cargolist = [elem for elem in row]
return (cargolist)
But python returns to me a truncate data like this
"},{"CODCARGO":507,"DESCRICAO":"Tecnico Social Xiv"},{"CODCARGO":508,"DESCRICAO":"Tecnico Social Xv"},{"CODCARGO":509,"DESCRICAO":"Técnico Terapeuta Ocupacional"},{"CODCARGO":510,"DESCRICAO":"Teledigifonista"},{"CODCARGO":511,"DESCRICAO":"Telefonista E Recepcionista"},{"CODCARGO":512,"DESCRICAO":"Tratorista"},{"CODCARGO":513,"DESCRICAO":"Varredor (A)"},{"CODCARGO":514,"DESCRICAO":"Viveirista Florestal"},{"CODCARGO":515,"DESCRICAO":"Motorista"},{"CODCARGO":516,"DESCRICAO":"Gestor Financeiro"},{"CODCARGO":517,"DESCRICAO":"Fonoaudiólogo"},{"CODCARGO":518,"DESCRICAO":"Pintor"},{"CODCARGO":519,"DESCRICAO":"Op Sus Facil"},{"CODCARGO":520,"DESCRICAO":"Téc De Radiologia"},{"CODCARGO":521,"DESCRICAO":"Gerente De Compliance"},{"CODCARGO":522,"DESCRICAO":"Eletricista"},{"CODCARGO":523,"DESCRICAO":"Técnico Em Mecânica"},{"CODCARGO":524,"DESCRICAO":"Auxiliar De Conservação De Vias"},{"CODCARGO":525,"DESCRICAO":"Jornalista"},{"CODCARGO":526,"DESCRICAO":"Assessor Pedagogico"},{"CODCARGO":527,"DESCRICAO":"Oficial De Manutenção Civil"},{"CODCARGO":528,"DESCRICAO":"Zelador"},{"CODCARGO":529,"DESCRICAO":"Supervisor Geral"},{"CODCARGO":530,"DESCRICAO":"Coordenação De Contratos E Medição"},{"CODCARGO":531,"DESCRICAO":"Supervisor Administrativo"},{"CODCARGO":532,"DESCRICAO":"Nutricionista"},{"CODCARGO":533,"DESCRICAO":"Especialista Em Saúde"},{"CODCARGO":534,"DESCRICAO":"Analista Fiscal"},{"CODCARGO":535,"DESCRICAO":"Assistente De Projetos Socioassistenciais"},{"CODCARGO":536,"DESCRICAO":"Auxiliar Geral De Conservação De Vias Permanentes"}]}
what i have done wrong?

FOR JSON results are streamed to the client using a single-column multi-row resultset. Long JSON results will be broken over multiple rows. So you need to iterate the cursor, concatenating the values in the first column to reconstruct the whole JSON document.
eg
def get_listcargo(myquery):
cursor = conn()
cursor.execute(myquery)
json = ''
for row in cursor:
json = json + row[0]
return (json)

Django sort list

I have this queryset:
<QuerySet [<ProductAttributeValue: Utilizare: Lazurán 3 în 1 Lazur Protector se utilizează pentru lăcuirea decorativă.>, <ProductAttributeValue: Randament: 16 m2/lit., într-un strat>, <ProductAttributeValue: Straturi recomandate: 2>, <ProductAttributeValue: Timp de uscare la 23 °C: 2 ore>, <ProductAttributeValue: Timp de reaplicare la 23 °C: 2 ore>, <ProductAttributeValue: Mod de aplicare: după o amestecare prealabilă se aplică cu pensula>, <ProductAttributeValue: Ambalare: 0.75L, 2.5L>]>
I would like to sort this queryset by fields name. For example when I display it I want that order:
(Utilizare, Mod de aplicare, Randament, Ambalare, Straturi
recomandate, Timp de uscare la 23 °C)
Actual code:
self.attribute_values.exclude(
attribute__name__in=['Buttons', 'Ambalare']).exclude(
attribute__type='file').order_by('pk')
There is any solution to sort this list in a given order?

Try this:
querySet.objects.order_by('field_name')
From the django-documentation-site:
https://docs.djangoproject.com/en/3.0/ref/models/querysets/#order-by

self.attribute_values.exclude(
attribute__name__in=['Buttons', 'Ambalare']).exclude(
attribute__type='file').order_by('pk').order_by('field_name')
That should work, and also take a quick read on the documentation here.

Delete a string phrase from a data frame column and replace it python

So, I have two dataframes. the first dataframe is dataset conatians several columns, what i will use in this dataframe is the dataset['text_msg'], this columns contains text data.
The second Dataframe sentences_to_exclude contains the data which type is text type.
The column that i will use in this dataframe is sentences_to_exclude['sentences'].
What i need to do is to verify if there are sentences from sentences_to_exclude['sentences'] in the first dataframe and remove the whole sentence.
I have tried a function but it didn't work for me: Here is the function i've used ==>
def remove_words(data):
words_to_remove = sentences_to_exclude['sentences'].lower().split(" ")
text_body = dataset['text_msg']
for word in words_to_remove:
text_body = text_body.replace(word,'' )
return text_body
Here's an exemple of sentences_to_exclude['sentences']
pour un traitement optimal de votre demande, veuillez indiquer les informations ci-dessous
and for the fisrt data frame here's an example of the dataset['text_msg']:
pour un traitement optimal de votre incident, nous vous prions de renseigner les informations ci-dessous : - code transaction : - numero de facture / commande client : - criteres dexecution et message derreur (a attacher en pj) description detaillee de votre demande
Hope that my request is clear
Thank you for help in advance
Example Data
sentences = ['code transaction', 'Pour un traitement efficace']
text = [ ' i should delete code transaction ', ' i am trying to delete Pour un traitement efficace only from this sentence ' ]
df1 = pd.DataFrame({'Sentences ': sentences })
df2 = pd.DataFrame({'Text': text})

Still don't understand your question correctly, I will try to help you, but please next time you have to include example data.
To answer your question I will give example dataset and explain how to remove words or sentences from other text:
# This is our example data
sentences = ['code transaction', 'Pour un traitement efficace']
text = [ ' i should delete code transaction ', ' i am trying to delete Pour un traitement efficace only from this sentence ' ]
df1 = pd.DataFrame({'Sentences': sentences})
df2 = pd.DataFrame({'Text': text})
# df1
Sentences
0 code transaction
1 Pour un traitement efficace
# df2
Text
0 i should delete code transaction
1 i am trying to delete Pour un traitement effi...
Next we want to harmonize our data so we wont have mismatches, so we convert to uppercase:
df1['Sentences'] = df1.Sentences.str.upper()
df2['Text'] = df2.Text.str.upper()
Sentences
0 CODE TRANSACTION
1 POUR UN TRAITEMENT EFFICACE
Text
0 I SHOULD DELETE CODE TRANSACTION
1 I AM TRYING TO DELETE POUR UN TRAITEMENT EFFI...
Now our data is in the right format, we can remove the text from one dataset to another
df2['Text_cleaned'] = df2.Text.str.replace('|'.join(df1.Words), '')
Text Text_cleaned
0 I SHOULD DELETE CODE TRANSACTION I SHOULD DELETE
1 I AM TRYING TO DELETE POUR UN TRAITEMENT EFFI... I AM TRYING TO DELETE ONLY FROM THIS SENTENCE
What does '|'.join(df1.Sentences) do?
It returns a string delimited by |
'|'.join(df1.Words)
'CODE TRANSACTION|POUR UN TRAITEMENT EFFICACE'
Hope this helps you and answers your question.
You can now apply this logic to your own data.

Search value in model object and if exists

I having a lot of problem with something I'm sure is pretty easy, but not for me.
I have 2 Models:
VipPassesModel
ProfileModel
Then I've this view, wich purpose is perform the following task (in this order):
Search if the "VIP Code" exists in the "VipPassesModel"
If "VIP Code" exists check if as some User (Profile Model - Foreing Key) asigned to it
If there's no user asigned to that VIP Code, then SAVE the current User logued (Id - Foreign Key) in that VIP Code (this will make this Vip Code no longer available)
My VipPassesModel:
class VipPassesModel(models.Model):
"""
VIP Passes Code Model.
"""
code = models.CharField(max_length = 15)
is_used = models.BooleanField(default=False)
user_asigned = models.ForeignKey(ProfileModel, related_name='profile_name', verbose_name="User Full Name", blank=True, null=True,)
My View.py
def vipcodevalidation(request):
"""
Funcion que recibe el CODE VIP y si es valido, lo asigna al usuario actual
"""
if request.method == 'POST':
form = VipPassesForm(data=request.POST)
if form.is_valid():
vipcode = form.cleaned_data['code']
user_to_asign = request.user
if VipPassesModel.objects.filter(code = vipcode).exists():
# Tomar el objeto y grabarle en "user_asigned" el id del usuario de django logueado actualmente (user_to_asign)
else:
#nada que hacer aqui
else:
form = VipPassesForm()
return render(request,'vipcode.html',{'form':form},context_instance=RequestContext(request))
I'll apreciate any help from you guys. Just to be clear, I'm not getting error messages, just I don't know how to deal with this.

Your view should be:
if VipPassesModel.objects.filter(code = vipcode): #If there is object with that code
vipObject = VipPassesModel.objects.filter(code = vipcode)[0] # Get the object
if not vipObject.user_assigned: #If object doesn't have user
vipObject.user_assigned = request.user.id # Assign actual user
vipObject.save() # Save object
else:
#nada que hacer aqui
When you do if VipPassesModel.objects.filter(code = vipcode): if there is no objects, you get [](empty list) so, if you do if [] it returns false, because the list is empty, if there is one model with tat code, it returns the object like [VipPassesModel] so to access to it you need to do VipPassesModel.objects.filter(code = vipcode)[0]
(la documentación de Django oficial sobre este tipo de querys está bastante bien, te recomiendo que le eches un ojo a Django Queries )

THANK YOU SO MUCH GUYS!... You're the best... I need more friends like you.
This is the final View Code:
def vipcodevalidation(request):
"""
Funcion que recibe el CODE VIP y si es valido, lo asigna al usuario actual
"""
if request.method == 'POST':
form = VipPassesForm(data=request.POST)
if form.is_valid():
vipcode = form.cleaned_data['code']
user_to_asign = request.user.id
if VipPassesModel.objects.filter(code = vipcode):
vipObject = VipPassesModel.objects.filter(code = vipcode)[0] # Get the object
if not vipObject.user_asigned: #If object doesn't have user
vipObject.user_asigned = ProfileModel.objects.get(pk = user_to_asign) # Assign actual user
vipObject.save() # Save object
# VIP Code encontrado y User Asignado.
else:
# VIP Code encontrado pero ya tiene un User Asignado.
else:
#VIP Code no encontrado o ya tiene un User Asignado
else:
form = VipPassesForm()
return render(request,'vipcode.html',{'form':form},context_instance=RequestContext(request))

Simplistically this is what you can do
try:
vipobj = VipPassesModel.objects.filter(code = vipcode, user_asigned = NULL)[0]
except IndexError:
#no vip code free to assign bail out
vipobj.user_assigned = user_to_asign
vipobj.save()
In real production level code, you should make these in a transaction sol that 2 requests from different user does not clash. 2nd request may override assignment by 1st request.

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