def test_remove(self):
'''checks the length of observations after adding new observation and that the removed item is a list'''
diary = DiaryDict()
diary.observations = {0:['hawk', date(2000, 12, 10)], 1:['hawk'], 2:['hawk', date(2000, 1, 1), 'might have been the same specimen saw earlier'] }
old = len(diary.observations)
removed = diary.remove(1)
self.assertTrue(isinstance(removed, list) and len(diary.observations) == old - 1 )
def test_modify_not_exist(self):
'''checks the length of modified observation after adding modifying observation and length of observations (changed)'''
diary = DiaryDict()
diary.observations = {0:['hawk', date(2000, 12, 10)], 1:['hawk'], 2:['hawk', date(2000, 1, 1), 'might have been the same specimen saw earlier'] }
old = len(diary.observations)
diary.modify(5, 'hawk', date(1995, 11, 14), 'really beautiful')
self.assertEqual(len(diary.observations), old + 1)
def test_add(self):
'''checks the length of observations after adding new observation '''
diary = DiaryDict()
diary.observations = {0:['hawk', date(2000, 12, 10)], 1:['hawk'], 2:['hawk', date(2000, 1, 1), 'might have been the same specimen saw earlier'] }
old = len(diary.observations)
diary.add(len(diary.observations), 'eagle', date(1980, 1, 4), 'very far but cound not be anything else')
self.assertEqual(len(diary.observations), old + 1)
def test_modify_exist(self):
'''checks the length of modified observation after adding modifying observation and length of observations (unchanged)'''
diary = DiaryDict()
diary.observations = {0:['hawk', date(2000, 12, 10)], 1:['hawk'], 2:['hawk', date(2000, 1, 1), 'might have been the same specimen saw earlier'] }
old_1 = len(diary.observations)
old_2 = len(diary.observations[1])
new = ['hawk', date(1990, 1, 4), 'not actually sure I saw it']
diary.modify(1, new[0], new[1], new[2])
self.assertFalse(old_1 == len(diary.observations) and old_2 == len(new))
def __init__(self, name=str(), *args, **kwargs):
'''
Gets a name and sets it to be the value of attribute name.
If no name is given the default is 'Diary [month/year]' where year and
month are the current year and month e.g. Diary June/2019
Also adds the GUI elements
'''
super().__init__(*args, **kwargs) #call Tk class initializer
self.__diary = DiaryDict(
name) #__diary checks the validity for the name
self.__selected_key = -1 #valid values 0...
self.__max = len(
self.__diary.observations
) # if observations are deleted from middle this is the next to be added
# =============================================================================
# Add simple GUI elements (labels, entries, and button)
# =============================================================================
self.title(self.__diary.name) #title is the validated attribute name
self.geometry('900x600')
# =============================================================================
# labels, that do not change,
# one line Entry fields that are used to read in values for
# target, date and notes
# position widgets (labes and entries) using grid() geometry
# =============================================================================
self.__e_target, self.__e_day, self.__e_notes = tk.StringVar(
), tk.StringVar(), tk.StringVar()
tk.Label(self, text='target ').grid(row=0, column=0, sticky=tk.W)
tk.Label(self, text='date [dd.mm.yyyy] ').grid(row=1,
column=0,
sticky=tk.W)
tk.Label(self, text='notes ').grid(row=2, column=0, sticky=tk.W)
e_1 = tk.Entry(self, textvariable=self.__e_target, bd=5, width=50)
e_2 = tk.Entry(self, textvariable=self.__e_day, bd=5, width=10)
e_3 = tk.Entry(self, textvariable=self.__e_notes, bd=5, width=100)
e_1.grid(row=0, column=1, sticky=tk.W)
e_2.grid(row=1, column=1, sticky=tk.W)
e_3.grid(row=2, column=1, sticky=tk.W)
# =============================================================================
# Add button and pressing it will read entries, call readvalues and if
# and call add method can process entries calls add method
# Modify and Delete buttons call respective methods in DiaryDict
# Buttons are inside a Frame that is placed inside the program window (self)
# =============================================================================
#TODO ver0.4 add ButtonView object containing buttonsa add, modify and delete
ButtonView(self).grid(row=3, column=1, sticky=tk.E + tk.W)
# =============================================================================
# Treeview to show all observations, select one for modifying and removing
# =============================================================================
self.__tv = ttk.Treeview(self,
columns=['target', 'date', 'notes'],
selectmode='browse')
self.__tv.heading('#0', text='ID')
self.__tv.heading('target', text='Target')
self.__tv.heading('date', text='Date')
self.__tv.heading('notes', text='Notes')
self.__tv.column('#0', width=50)
self.__tv.column('target', width=250)
self.__tv.column('date', width=100)
self.__tv.column('notes', stretch=True)
self.__tv.grid(row=4, column=1, pady=10, sticky=tk.W + tk.E)
self.__scrollbar = ttk.Scrollbar(self,
orient=tk.VERTICAL,
command=self.__tv.yview)
self.__tv.configure(yscrollcommand=self.__scrollbar.set)
self.__scrollbar.grid(row=4, column=1, sticky='NSE')
self.__tv.bind('<<TreeviewOpen>>',
self.__open_observation) #bind to doubleclick
tk.Label(
self,
text='Use double click to select a row for modifying or deleting '
).grid(row=5, column=1, sticky=tk.W + tk.E)
class Diary(tk.Tk):
'''
Diary class keeps track of observations in DiaryDict object, is also a TK GUI
'''
def __init__(self, name=str(), *args, **kwargs):
'''
Gets a name and sets it to be the value of attribute name.
If no name is given the default is 'Diary [month/year]' where year and
month are the current year and month e.g. Diary June/2019
Also adds the GUI elements
'''
super().__init__(*args, **kwargs) #call Tk class initializer
self.__diary = DiaryDict(
name) #__diary checks the validity for the name
self.__selected_key = -1 #valid values 0...
self.__max = len(
self.__diary.observations
) # if observations are deleted from middle this is the next to be added
# =============================================================================
# Add simple GUI elements (labels, entries, and button)
# =============================================================================
self.title(self.__diary.name) #title is the validated attribute name
self.geometry('900x600')
# =============================================================================
# labels, that do not change,
# one line Entry fields that are used to read in values for
# target, date and notes
# position widgets (labes and entries) using grid() geometry
# =============================================================================
self.__e_target, self.__e_day, self.__e_notes = tk.StringVar(
), tk.StringVar(), tk.StringVar()
tk.Label(self, text='target ').grid(row=0, column=0, sticky=tk.W)
tk.Label(self, text='date [dd.mm.yyyy] ').grid(row=1,
column=0,
sticky=tk.W)
tk.Label(self, text='notes ').grid(row=2, column=0, sticky=tk.W)
e_1 = tk.Entry(self, textvariable=self.__e_target, bd=5, width=50)
e_2 = tk.Entry(self, textvariable=self.__e_day, bd=5, width=10)
e_3 = tk.Entry(self, textvariable=self.__e_notes, bd=5, width=100)
e_1.grid(row=0, column=1, sticky=tk.W)
e_2.grid(row=1, column=1, sticky=tk.W)
e_3.grid(row=2, column=1, sticky=tk.W)
# =============================================================================
# Add button and pressing it will read entries, call readvalues and if
# and call add method can process entries calls add method
# Modify and Delete buttons call respective methods in DiaryDict
# Buttons are inside a Frame that is placed inside the program window (self)
# =============================================================================
#TODO ver0.4 add ButtonView object containing buttonsa add, modify and delete
ButtonView(self).grid(row=3, column=1, sticky=tk.E + tk.W)
# =============================================================================
# Treeview to show all observations, select one for modifying and removing
# =============================================================================
self.__tv = ttk.Treeview(self,
columns=['target', 'date', 'notes'],
selectmode='browse')
self.__tv.heading('#0', text='ID')
self.__tv.heading('target', text='Target')
self.__tv.heading('date', text='Date')
self.__tv.heading('notes', text='Notes')
self.__tv.column('#0', width=50)
self.__tv.column('target', width=250)
self.__tv.column('date', width=100)
self.__tv.column('notes', stretch=True)
self.__tv.grid(row=4, column=1, pady=10, sticky=tk.W + tk.E)
self.__scrollbar = ttk.Scrollbar(self,
orient=tk.VERTICAL,
command=self.__tv.yview)
self.__tv.configure(yscrollcommand=self.__scrollbar.set)
self.__scrollbar.grid(row=4, column=1, sticky='NSE')
self.__tv.bind('<<TreeviewOpen>>',
self.__open_observation) #bind to doubleclick
tk.Label(
self,
text='Use double click to select a row for modifying or deleting '
).grid(row=5, column=1, sticky=tk.W + tk.E)
def readvalues(self):
'''reads entries values and if ok calls add, calls __diary's services'''
d = str(self.__e_day.get().strip()).split('.')
if len(d) == 3:
day = date(int(d[2]), int(d[1]), int(d[0]))
else:
day = date.today()
# =============================================================================
# add to datamodel (DiaryDict object)
# =============================================================================
#ensure that you added key does not exist (add to the end)
key = self.__max
if len(self.__diary.observations) > self.__max:
key = len(self.__diary.observations)
if self.__diary.add(key,
self.__e_target.get().strip(), day,
self.__e_notes.get().strip()):
# =============================================================================
# add to treeview if adding was successful, add to the end and update max
# The ttk.Treeview widget displays a hierarchical collection of items.
# Each item has a textual label, an optional image, and an optional list of data values.
# The data values are displayed in successive columns after the tree label.
# =============================================================================
self.__tv.insert('',
'end',
iid=str(key),
text=str(key),
values=[
self.__e_target.get().strip(), day,
self.__e_notes.get().strip()
])
self.__max += 1
def updatevalues(self):
'''updates selected item in diarydict and treeview'''
if self.__selected_key >= 0:
#re-read values target, date and notes
d = str(self.__e_day.get().strip()).split('.')
if len(d) == 3:
day = date(int(d[2]), int(d[1]), int(d[0]))
else:
day = date.today()
#TODO ver0.4 call diarydict modify method
self.__diary.modify(self.__selected_key,
self.__e_target.get().strip(), day,
self.__e_notes.get().strip())
#update treeview
item = self.__tv.selection()
self.__tv.item(item,
text=str(self.__selected_key),
values=[
self.__e_target.get().strip(), day,
self.__e_notes.get().strip()
])
def deletevalues(self):
'''removes item with selected key from diarydict and treeview'''
if self.__selected_key >= 0:
#TODO ver0.4 call diarydict remove
self.__diary.remove(self.__selected_key)
#update treeview
item = self.__tv.selection()
self.__tv.delete(item)
def __open_observation(self, *args):
'''reponds to double click'''
self.__selected_key = int(self.__tv.selection()[0])
self.__e_target.set(self.__diary.observations[self.__selected_key][0])
self.__e_day.set(self.__diary.observations[self.__selected_key][1])
self.__e_notes.set(self.__diary.observations[self.__selected_key][2])
def test_observations(self):
'''checks the length of observations after setting the property '''
diary = DiaryDict()
diary.observations = {0:['hawk', date(2000, 12, 10)], 1:['hawk'], 2:['hawk', date(2000, 1, 1), 'might have been the same specimen saw earlier'] }
self.assertTrue(len(diary.observations) == 3)