Extracting the Date from the UI date and time spinner

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.

Phuket2

@abushama, how are you going? Did you get a solution? I think i read too quickly, I see what @JonB is saying now.
The functions that have been written should show you the way how to achieve what you want. Let us know if you got what you wanted working or not

abushama

this is my UI simple project
i hope this give u a quite view

abushama

@JonB
exatly..i input
the first three cells
GontarHighPrice
GontarLowPrice
and the doller rate
then i tunning the calnder celnder to the certin date and press calculate botton
this action will calculte other cells in the UI and in the same time will save this all this data + the date in one csv

what i got so far in the code above all the data and the date
but not in one order

Phuket2

@abushama , as far as I can see the below should do want you want, if not pretty close to it. I am not saying its the prettiest way to do it. But its very procedural. Hopefully its easy to follow. There are always many solutions to a given problem. I have tried to do it as I imagine you are doing it. I mean by loading the form. I assume in the designer for the button you are setting the action to call.
For the below to work you need to set your calc button's action to calc_button_action and you have to set the my_screen_fn to the name of your view you made in the Designer.

import ui
from os.path import exists 
import csv

_csv_filename = 'myoutput.csv'
		
def calc_button_action(sender):
	'''
		Here your calc button will call 3 functions.
		1. do_calculations, so you calculate and put the values in your fields
		2. collect_data, will collect all the data from your view and return it as a dict
		3. write_to_csv, you pass your dict you collected the data into and it will be written
		to the csv file.  The file name is at the top of the file.  You could ask for the name
		of the file for example.
	'''
	
	# v is set to your view, so you can access the other objects on you view now and
	# pass your view to other functions!
	v = sender.superview
	
	do_calculations(v)
	data_dict = collect_data(v)
	write_to_csv(_csv_filename, data_dict)
	
def do_calculations(v):
	'''
		in here, just do your calculations and update
		your fields with the calculated data
	'''
	# so to access the date in the ui.DatePicker, lets say its name is cal
	the_date = v['cal'].date
	
	# you can access all your objects as above.
	
	v['txt9'].text = str(10 * 2) # whatever you calculate
	
	
def collect_data(v):
	'''
		in here you are only intrested in collecting your data from the view
		again, you have the view so you can access your fields.
		I have used a dict here to collect the information.
		I think if you are using py 3.6, your dict will keep its order as you add your items
	'''
	
	# I have only filled in a few fields here. But you would add everything from your view
	# you wanted written out to the csv.  Add the items in the order you want them written 
	# to the csv file.
	d = dict(
			Year = v['cal'].date.year,
			Month = v['cal'].date.month,
			Day = v['cal'].date.day,
			HighPrice = v['txt9'].text,
			)
	return d
	
def write_to_csv(filename, data_dict):
	'''
		This function is only concerned with writing your dict to the csv file.  
	'''
	fexists=exists(filename) # We set a var to see if the file exists
	
	fieldnames = list(data_dict.keys()) # get a list of the keys to use as the header
	with open(filename, 'a') as csvfile:
		writer = csv.DictWriter(csvfile, fieldnames=fieldnames)
		# only write the header one time to the file
		if not fexists:
			writer.writeheader()
			
		writer.writerow(data_dict)
		
		
if __name__ == '__main__':
	my_screen_fn = 'someview.pyui'
	v = ui.load_view(my_screen_fn)
	v.present(style='sheet', animated=False)

abushama

@Phuket2
thank you very much
frist thing u taught how to
combin funtions in my UI which i do not know before.
2)ur code is so clear to get the idea simply

as u side am not using 3.6 python so the output of dic are not orginize as i put in my code
so any idea..?

Phuket2

@abushama , ok here is a version that is using lists. I thought it should be a simple change to use OrderDict, but I had a problem to get it to work. So i used a list instead :(

import ui
from os.path import exists 
import csv

_csv_filename = 'myoutputV2.csv'
		
def calc_button_action(sender):
	'''
		Here your calc button will call 3 functions.
		1. do_calculations, so you calculate and put the values in your fields
		2. collect_data, will collect all the data from your view and return it as a list
		3. write_to_csv, you pass your list you collected the data into and it will be written
		to the csv file.  The file name is at the top of the file.  You could ask for the name
		of the file for example.
	'''
	
	# v is set to your view, so you can access the other objects on you view now and
	# pass your view to other functions!
	v = sender.superview
	
	do_calculations(v)
	data_list = collect_data(v)
	write_to_csv(_csv_filename, data_list , ['Year', 'Month', 'Day', 'HighPrice'])
	
def do_calculations(v):
	'''
		in here, just do your calculations and update
		your fields with the calculated data
	'''
	# so to access the date in the ui.DatePicker, lets say its name is cal
	the_date = v['cal'].date
	
	# you can access all your objects as above.
	
	v['txt9'].text = str(10 * 2) # whatever you calculate
	
	
def collect_data(v):
	'''
		in here you are only intrested in collecting your data from the view
		again, you have the view so you can access your fields.
		Using a list now! not a dict
	'''
	lst = []
	# I have only filled in a few fields here. But you would add everything from your view
	# you wanted written out to the csv.  Add the items in the order you want them written 
	# to the csv file.
	lst.append(v['cal'].date.year)
	lst.append(v['cal'].date.month)
	lst.append(v['cal'].date.day)
	lst.append(v['txt9'].text)
	
	return lst
	
def write_to_csv(filename, data_list, field_name_list=None):
	'''
		This function is only concerned with writing your list to the csv file.  
	'''
	fexists=exists(filename) # We set a var to see if the file exists
	
	
	with open(filename, 'a') as csvfile:
		csvwriter = csv.writer(csvfile, delimiter=',',
							quotechar='|', quoting=csv.QUOTE_MINIMAL)
		
		if not fexists and field_name_list != None:
			csvwriter.writerow(field_name_list)
			
		csvwriter.writerow(data_list)	
		
if __name__ == '__main__':
	my_screen_fn = 'someview.pyui'
	v = ui.load_view(my_screen_fn)
	v.present(style='sheet', animated=False)

Extracting the Date from the UI date and time spinner

@JonB exatly..i input the first three cells GontarHighPrice GontarLowPrice and the doller rate then i tunning the calnder celnder to the certin date and press calculate botton this action will calculte other cells in the UI and in the same time will save this all this data + the date in one csv

@Phuket2 thank you very much frist thing u taught how to combin funtions in my UI which i do not know before. 2)ur code is so clear to get the idea simply

@JonB
exatly..i input
the first three cells
GontarHighPrice
GontarLowPrice
and the doller rate
then i tunning the calnder celnder to the certin date and press calculate botton
this action will calculte other cells in the UI and in the same time will save this all this data + the date in one csv

@Phuket2
thank you very much
frist thing u taught how to
combin funtions in my UI which i do not know before.
2)ur code is so clear to get the idea simply