Extracting the Date from the UI date and time spinner

ccc

To post code to this forum, see: http://omz-forums.appspot.com/pythonista/post/5493027686580224

ccc

import ui

my_date = None 

def date_picker_action(sender):
    my_date = sender.date
    print(my_date)

view = ui.View()
date_picker = ui.DatePicker()
date_picker.action = date_picker_action
view.add_subview(date_picker)
view.present('sheet')

dvader9

@ccc thanks for the link to posting code on the forum. I've edited my response above, though the code you posted conveys the idea in a more complete example.

KevinKarney

Brilliant.
Thanks dvader9 and @ccc. I knew it would be easy!
Best wishes, Kevin

abushama

i need to extract and append in csv file???
MyScript

def calndr(sender):
  date = sender.superview['calender']
  # assuming that is the name of your DatePicker object
  # this returns a datetime.datetime object, see module datetime
  year = date.year
  month = date.month
  
  with open('newfile.csv',"a") as f:
			newfileWriter=csv.writer(f)
			newfileWriter.writerow([calndr()])
			tarDate=calndr(targetDate['calender'])
			f.close()

Phuket2

@abushama , I have never used the csv lib before. But I think the below should work. I basically copied it from the examples in the csv documentation.
There are other types of writers, but i came across the dict writer, which seems it would be a good choice anyway. link to csv docs

def calndr(sender):
	date = sender.superview['calender']
	# assuming that is the name of your DatePicker object
	# this returns a datetime.datetime object, see module datetime
	year = date.year
	month = date.month
	
	with open('newfile.csv', 'a') as csvfile:
		fieldnames = ['Year', 'Month']
		writer = csv.DictWriter(csvfile, fieldnames=fieldnames)
		writer.writerow({'Year': year, 'Month': month})

ccc

This post is deleted!

JonB

@abushama You seem to be calling calndr() from within calndr(). calndr() does not return a date.
Reread each line in your code and remind yourself what you are trying to achieve with each line...

abushama

@Phuket2
i think u got my point
but when i ran the code
this kide or error pop up

AttributeError: '_ui.DatePicker' object has no attribute 'year'
which is:-
year=date.year

abushama

@JonB
i did but am still straggling
how to extract time from calnder celnder and write it in csv file
that all what am trying😔

Phuket2

@abushama. One proble was you were setting the date to be the ui.DatePicker, not the attr date. You can see I changed it in your function (I missed that originally, I didn't run the code because you didn't post it all, so it was easy for me to miss that). Look, I just got it working in the way i thought you had tried to get it working.
Your calndr function looks likes it would make more sense for you to put it into the class as a method.
I am often torn about how to help. If I make too many changes it can be frustrating to the person and confuse them more. @JonB point about going over your code is very valid. The way you where calling your function again inside trying to write to the csv file was way off. So I would suggest to take what i have done and try to move your calndr function into the class. Then really look closely about what's happening when you are writing out your csv file.
You are not that far away. Just take your time and really look through it. Still here if you need more help.
EDIT please see the notes I added to the bottom of the post.

import ui
import csv

def calndr(sender):
	date = sender.superview['calender'].date
	# assuming that is the name of your DatePicker object
	# this returns a datetime.datetime object, see module datetime
	
	year = date.year
	month = date.month
	
	with open('newfile.csv', 'a') as csvfile:
		fieldnames = ['Year', 'Month']
		writer = csv.DictWriter(csvfile, fieldnames=fieldnames)
		writer.writerow({'Year': year, 'Month': month})
		
class MyClass(ui.View):
	def __init__(self, *args, **kwargs):
		super().__init__(*args, **kwargs)
		self.make_view()
		
	def make_view(self):
		dtp = ui.DatePicker(name='calender')
		
		btn = ui.Button(width=80,
						height=32,
						border_width=.5,
						bg_color='white',
						corner_radius=.5,
						action=calndr)
		btn.title='Save'
		# just position the button
		btn.center = self.center
		btn.y = self.height - (btn.height * 2)
		
		# add the date picker & btn to the view
		self.add_subview(dtp)
		self.add_subview(btn)
		
if __name__ == '__main__':
	f = (0, 0, 300, 400)
	v = MyClass(frame = f)
	v.present(style='sheet', animated=False)

Btw, the csv writer has other methods, for example to write out the headers to you file. Of course you would only want to write the headers once. Oh, I should have mentioned, you should not really move your calndr function into the class the way it is. It really should be a method that just is passed you year and month and writes out the csv file. You really don't want the other objects around. If you make the method just to handle the csv file, you could for example reuse that code in other objects.

abushama

@Phuket2
thank u very much
i got this one too i would like to share
and advice my
i kw this not like ur prof one u did but this what i came with

import ui
import datetime
import csv


def calc(sender):
		v = sender.superview
		GontarHighPrice = v['txt1'].text
		GontarLowPrice = v['txt2'].text
		DollerRate =v ['txt3'].text
		
		Avg = (float(GontarHighPrice)+float(GontarLowPrice))/2
		TonInPounds=22.25*Avg
		SPound="{0:,.2f}".format(TonInPounds)
		v['txt4'].text=str(SPound)
		
		TonInDollars=TonInPounds/float(DollerRate)
		v['txt5'].text=str("{0:,.2f}".format(TonInDollars))
		#TID=v['txt5'].text
		
		ProtSudan=TonInDollars+150
		v['txt6'].text="{0:,.2f}".format(ProtSudan)
		#FOB=v['txt6'].text
		
		C_F= ProtSudan+50
		v['txt7'].text="{0:,.2f}".format(C_F)
		#CF=v['txt7'].text
		
		Amman= C_F+120
		v['txt8'].text="{0:,.2f}".format(Amman)
		Amm=v['txt8'].text
		
		with open('newfile1.csv', 'a') as csvfile1:
					fieldnames = ['Amm']
					writer = csv.DictWriter(csvfile1, fieldnames=fieldnames)
					writer.writerow({'Amm': Amm})
					csvfile1.close()
		
def calndr(sender):
		Mydate=sender.date
		day = Mydate.day
		month = Mydate.month
		year = Mydate.year
	
		with open('newfile1.csv', 'a') as csvfile1:
				fieldnames = ['Day', 'Month','Year']
				writer = csv.DictWriter(csvfile1, fieldnames=fieldnames)
				writer.writerow({'Day': day, 'Month': month,'Year': year})
				csvfile1.close()

		v = ui.load_view()
		v.present('sheet')

abushama

@Phuket2
As u notice that i got 2 open files to append
the data of
Amm and the date which i got from calender celnder

all i need is to make it one open file
which i can append in one csv file to covert to excel sheet

?????

Phuket2

@abushama, I am not really sure what your final result is suppose to look like. But if you look below there is a function that will take a dict and write it out to the csv file. So that function is only concerned with your csv file, not how to get the data. If you call the function over and over it will be ok, because we only write the headers out once.

import csv
import os

def write_to_csv(filename, data_dict):
	
	fexists = os.path.exists(filename) # We set a var to see if the file exists 
	
	fieldnames = list(my_data_dict.keys()) # get a list of the keys to use as the header
	with open(filename, 'a') as csvfile:
			#fieldnames = ['Day', 'Month','Year']
			writer = csv.DictWriter(csvfile, fieldnames=fieldnames)
			
			# only write the header one time to the file
			if not fexists:
				writer.writeheader()
				
			writer.writerow(data_dict)
			#svfile1.close()  # you dont need this.  Look up Context Managers

if __name__ == '__main__':
	filename = 'my_csv.csv'
	
	# you would collect your data and put it in a dict.
	my_data_dict = dict(
		Day = 1,
		Month = 12,
		Year = 2017,
		Amm = 2.5	
	)
	
	write_to_csv(filename , my_data_dict)
	
	# just print the file to the console, make sure its what we wanted
	with open(filename) as f:
		for line in f:
			print(line, end='')

abushama

@Phuket2
am trying to post a screenshot of my UI but i dont know how??
may u send my ur email plz?

ccc

Posting images to this forum works like this: https://guides.github.com/features/mastering-markdown/#examples

Phuket2

@abushama, I had already done this before I seen @ccc post. But this also should help

ccc

Perhaps the missing magic in this thread is seek() which lets you open a file in 'a' mode and then seek to the beginning of that file (append_file.seek(0, 0)) so that you can read() its contents and then seek to the end of the file (append_file.seek(0, 2)) and then write() new content to the end of the file.

Phuket2

@ccc, I am a little baffled. I was going to suggest he could call the function twice with different files names then have another small function to combine the files or create a 3rd file. Whatever is needed.
Maybe should have done this without using csv to help for clarity the fact its only a comma separated file with some headings if required. The csv writer in this case would only help with imbedded quotes in strings etc...In this simple case.
The dict writer is nice though.
We will see what @abushama comes back with.

JonB

It seems to me, he wants a function which gathers the entire UI state, not just the sender, and write that to csv.

i.e there should be a utility function which gets the date, as well as everything else he wants in the file, and writes the csv. Then both callbacks call the exact same function.