class DispenseDrug:
def __init__(self, master):
self.master = master
self.search_frame = ttk.Frame(self.master)
# bring the UI elements on the board
self.search_lbl = ttk.Label(self.search_frame,
text="Search Medicine",
foreground='blue')
self.qty_lbl = ttk.Label(self.search_frame,
text="Qty",
foreground='blue')
self.search_lbl.grid(row=0, column=0)
self.qty_lbl.grid(row=0, column=1)
# self.search_entry = ttk.Entry(self.search_frame, width=40, foreground='black')
# initialise the search entry with autocomplete
try:
all_drug_names = sql.session.query_drug_names_for_autocomplete()
# print(all_drug_names)
# prepare list to receive autocomplete source content
autocomplete_source = []
for each_row in all_drug_names:
# the autocomplete module accepts strings
# so lets format the returned unicode to strings
# and append that to the newly created list
autocomplete_source.append(str(each_row[0]))
self.search_entry = AutocompleteEntry(self.search_frame,
width=40,
foreground='black')
# print(autocomplete_source)
self.search_entry.set_completion_list(autocomplete_source)
except IOError:
print('Error processing data for autocomplete')
# entry.pack()
# entry.focus_set()
self.search_entry.grid(row=1, column=0)
self.search_entry.focus()
self.qty_entry = ttk.Entry(self.search_frame,
width=8,
foreground='black')
self.qty_entry.grid(row=1, column=1)
self.search_btn = ttk.Button(self.search_frame,
text="Search",
command=self.search_drug)
self.search_btn.grid(row=2, column=1)
self.search_btn.bind()
# pack them on the screen
self.search_frame.pack(fill=BOTH, padx=10, pady=10)
########## search results to output here
self.showInventoryFrame = ttk.Frame(self.master)
self.showInventoryFrame.pack(expand=1, fill=BOTH, padx=10, pady=10)
# imported table-like multi list box
self.listBox = MultiListbox(self.showInventoryFrame,
(("Drug Name", 30), ("Price (GHS)", 5),
("Qty", 5)))
self.listBox.pack(expand=1, fill=BOTH)
########## search results to output here
self.showTotalFrame = ttk.Frame(self.master)
self.showTotalFrame.pack(fill=BOTH, padx=5, pady=5)
self.total_lbl = ttk.Label(self.showTotalFrame,
text="Total (GHS)",
foreground='blue')
self.total_lbl.pack(side=LEFT)
self.total_entry = ttk.Entry(self.showTotalFrame,
width=7,
foreground='red')
self.total_entry.pack(side=LEFT)
########## search operation buttons
self.saleBtnsFrame = ttk.Frame(self.master)
self.saleBtnsFrame.pack(fill=BOTH, padx=10, pady=5)
self.delete_entry_btn = ttk.Button(self.saleBtnsFrame,
text="Delete Entry",
command=self.delete_entry)
self.checkout_btn = ttk.Button(self.saleBtnsFrame,
text="Checkout",
command=self.checkout)
self.checkout_btn.pack(side=RIGHT)
self.delete_entry_btn.pack(side=RIGHT)
self.clear_button = ttk.Button(self.saleBtnsFrame,
text='Clear List',
command=self.clear_sales_list)
self.clear_button.pack(side=RIGHT)
## other init values
# TODO: check (Am I polluting the 'self' namespace with all these bindings?)
self.curr_pos = 0
self.all_items_pos = []
self.checkout_pressed = False
## the total_item_quantity stores the quantities of the
# searched items displayed in the listbox for further calculations
self.total_item_quantity = []
def search_drug(self):
# get the entered search query
search_query = self.search_entry.get()
# for the quantity entry box,
# if the user doesnt provide a quantity,
# a default value of 1 is used instead.
# Else the value is provided
# TODO: Validate entry for ints, against strings and special chars
if len(self.qty_entry.get()) == 0:
buying_qty = 1
else:
buying_qty = self.qty_entry.get()
# print(len(buying_qty))
if self.checkout_pressed:
self.listBox.delete(0, END)
result_from_query = sql.session.query_drug(search_query.lower())
# print(result_from_query)
self.update_listbox(result_from_query, buying_qty)
self.checkout_pressed = False
def delete_entry(self):
"""
Deletes an entry from the cart table.
"""
# popup window
try:
# get index of selection
get_selection = self.listBox.curselection()
# print("Selection", get_selection)
# use regex to compile information
get_selection = str(get_selection)
regex = re.compile('[0-9]')
selected_index = regex.findall(get_selection)
# print("Selected index", selected_index[0])
# print("Popped", self.all_items_pos.pop(int(selected_index[0])))
self.listBox.delete(selected_index[0])
# tell user to make a selection first
except TclError:
showerror(title="Error !",
message="Please make a selection in order to delete",
parent=self.master)
except IndexError:
showerror(title="Error !",
message="Please make a selection in order to delete",
parent=self.master)
def checkout(self):
"""
Get all the drugs in the list box and total the price for sale
"""
# delete the entry box before placing the results into it
self.total_entry.delete(0, END)
# ok, so I want to know if the checkout button has been pressed,
# that way we can act intelligently and decide not to delete
# the listbox and allow the client to peruse the items before selling.
# This check is done before instantiating the search process
self.checkout_pressed = True
try:
total_cost = 0
# checkout_list_names = []
for each_item in self.listBox.get(0, END):
# checkout_list_names.append(each_item[0])
cost_of_drug = float(each_item[1]) * float(each_item[2])
total_cost += cost_of_drug
# print(total_cost)
# print(checkout_list_names)
query_item = (str(each_item[0]), )
drug_details = sql.session.query_drugs_for_checkout(query_item)
print('current quantity', drug_details[0][0])
if int(drug_details[0][0]) - int(each_item[2]) > 0:
new_quantity = int(drug_details[0][0]) - int(each_item[2])
update_values = (new_quantity, query_item[0])
print(update_values)
sql.session.update_quantity_after_checkout(update_values)
self.total_entry.delete(0, END)
self.total_entry.insert(0, total_cost)
else:
out_of_stock_info = \
"Your remaining quantity of %s is %d" % (query_item, int(drug_details[0][0]))
showinfo(title="Out of Stock",
message=out_of_stock_info,
parent=self.master)
## cleaning after myself like a good boy would
# self.listBox.delete(0, END)
self.search_entry.delete(0, END)
self.qty_entry.delete(0, END)
except IndexError:
print("Index Error")
def clear_sales_list(self):
"""
Clear list.
"""
# clears the list of things bought from the dispensary window
# print(self)
self.listBox.delete(0, END)
# after that, reset the contents of the entry box. Make it empty
self.search_entry.delete(0, END)
# reset the list value of total item
self.total_item_quantity = []
# reset the value of the items position
self.all_items_pos = []
self.total_entry.delete(0, END)
def update_listbox(self, result_from_query, buying_qty):
for row in result_from_query:
self.listBox.insert(END, (row[0], row[1], buying_qty))
self.listBox.selection_set(0)
class DispenseDrug:
def __init__(self, master):
self.master = master
self.search_frame = ttk.Frame(self.master)
# bring the UI elements on the board
self.search_lbl = ttk.Label(self.search_frame, text="Search Medicine", foreground="blue")
self.qty_lbl = ttk.Label(self.search_frame, text="Qty", foreground="blue")
self.search_lbl.grid(row=0, column=0)
self.qty_lbl.grid(row=0, column=1)
# self.search_entry = ttk.Entry(self.search_frame, width=40, foreground='black')
# initialise the search entry with autocomplete
try:
all_drug_names = sql.session.query_drug_names_for_autocomplete()
# print(all_drug_names)
# prepare list to receive autocomplete source content
autocomplete_source = []
for each_row in all_drug_names:
# the autocomplete module accepts strings
# so lets format the returned unicode to strings
# and append that to the newly created list
autocomplete_source.append(str(each_row[0]))
self.search_entry = AutocompleteEntry(self.search_frame, width=40, foreground="black")
# print(autocomplete_source)
self.search_entry.set_completion_list(autocomplete_source)
except IOError:
print("Error processing data for autocomplete")
# entry.pack()
# entry.focus_set()
self.search_entry.grid(row=1, column=0)
self.search_entry.focus()
self.qty_entry = ttk.Entry(self.search_frame, width=8, foreground="black")
self.qty_entry.grid(row=1, column=1)
self.search_btn = ttk.Button(self.search_frame, text="Search", command=self.search_drug)
self.search_btn.grid(row=2, column=1)
self.search_btn.bind()
# pack them on the screen
self.search_frame.pack(fill=BOTH, padx=10, pady=10)
########## search results to output here
self.showInventoryFrame = ttk.Frame(self.master)
self.showInventoryFrame.pack(expand=1, fill=BOTH, padx=10, pady=10)
# imported table-like multi list box
self.listBox = MultiListbox(self.showInventoryFrame, (("Drug Name", 30), ("Price (GHS)", 5), ("Qty", 5)))
self.listBox.pack(expand=1, fill=BOTH)
########## search results to output here
self.showTotalFrame = ttk.Frame(self.master)
self.showTotalFrame.pack(fill=BOTH, padx=5, pady=5)
self.total_lbl = ttk.Label(self.showTotalFrame, text="Total (GHS)", foreground="blue")
self.total_lbl.pack(side=LEFT)
self.total_entry = ttk.Entry(self.showTotalFrame, width=7, foreground="red")
self.total_entry.pack(side=LEFT)
########## search operation buttons
self.saleBtnsFrame = ttk.Frame(self.master)
self.saleBtnsFrame.pack(fill=BOTH, padx=10, pady=5)
self.delete_entry_btn = ttk.Button(self.saleBtnsFrame, text="Delete Entry", command=self.delete_entry)
self.checkout_btn = ttk.Button(self.saleBtnsFrame, text="Checkout", command=self.checkout)
self.checkout_btn.pack(side=RIGHT)
self.delete_entry_btn.pack(side=RIGHT)
self.clear_button = ttk.Button(self.saleBtnsFrame, text="Clear List", command=self.clear_sales_list)
self.clear_button.pack(side=RIGHT)
## other init values
# TODO: check (Am I polluting the 'self' namespace with all these bindings?)
self.curr_pos = 0
self.all_items_pos = []
self.checkout_pressed = False
## the total_item_quantity stores the quantities of the
# searched items displayed in the listbox for further calculations
self.total_item_quantity = []
def search_drug(self):
# get the entered search query
search_query = self.search_entry.get()
# for the quantity entry box,
# if the user doesnt provide a quantity,
# a default value of 1 is used instead.
# Else the value is provided
# TODO: Validate entry for ints, against strings and special chars
if len(self.qty_entry.get()) == 0:
buying_qty = 1
else:
buying_qty = self.qty_entry.get()
# print(len(buying_qty))
if self.checkout_pressed:
self.listBox.delete(0, END)
result_from_query = sql.session.query_drug(search_query.lower())
# print(result_from_query)
self.update_listbox(result_from_query, buying_qty)
self.checkout_pressed = False
def delete_entry(self):
"""
Deletes an entry from the cart table.
"""
# popup window
try:
# get index of selection
get_selection = self.listBox.curselection()
# print("Selection", get_selection)
# use regex to compile information
get_selection = str(get_selection)
regex = re.compile("[0-9]")
selected_index = regex.findall(get_selection)
# print("Selected index", selected_index[0])
# print("Popped", self.all_items_pos.pop(int(selected_index[0])))
self.listBox.delete(selected_index[0])
# tell user to make a selection first
except TclError:
showerror(title="Error !", message="Please make a selection in order to delete", parent=self.master)
except IndexError:
showerror(title="Error !", message="Please make a selection in order to delete", parent=self.master)
def checkout(self):
"""
Get all the drugs in the list box and total the price for sale
"""
# delete the entry box before placing the results into it
self.total_entry.delete(0, END)
# ok, so I want to know if the checkout button has been pressed,
# that way we can act intelligently and decide not to delete
# the listbox and allow the client to peruse the items before selling.
# This check is done before instantiating the search process
self.checkout_pressed = True
try:
total_cost = 0
# checkout_list_names = []
for each_item in self.listBox.get(0, END):
# checkout_list_names.append(each_item[0])
cost_of_drug = float(each_item[1]) * float(each_item[2])
total_cost += cost_of_drug
# print(total_cost)
# print(checkout_list_names)
query_item = (str(each_item[0]),)
drug_details = sql.session.query_drugs_for_checkout(query_item)
print("current quantity", drug_details[0][0])
if int(drug_details[0][0]) - int(each_item[2]) > 0:
new_quantity = int(drug_details[0][0]) - int(each_item[2])
update_values = (new_quantity, query_item[0])
print(update_values)
sql.session.update_quantity_after_checkout(update_values)
self.total_entry.delete(0, END)
self.total_entry.insert(0, total_cost)
else:
out_of_stock_info = "Your remaining quantity of %s is %d" % (query_item, int(drug_details[0][0]))
showinfo(title="Out of Stock", message=out_of_stock_info, parent=self.master)
## cleaning after myself like a good boy would
# self.listBox.delete(0, END)
self.search_entry.delete(0, END)
self.qty_entry.delete(0, END)
except IndexError:
print("Index Error")
def clear_sales_list(self):
"""
Clear list.
"""
# clears the list of things bought from the dispensary window
# print(self)
self.listBox.delete(0, END)
# after that, reset the contents of the entry box. Make it empty
self.search_entry.delete(0, END)
# reset the list value of total item
self.total_item_quantity = []
# reset the value of the items position
self.all_items_pos = []
self.total_entry.delete(0, END)
def update_listbox(self, result_from_query, buying_qty):
for row in result_from_query:
self.listBox.insert(END, (row[0], row[1], buying_qty))
self.listBox.selection_set(0)