moved ex3->ex03
This commit is contained in:
78
exam/ex03/callbacks.py
Normal file
78
exam/ex03/callbacks.py
Normal file
@@ -0,0 +1,78 @@
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from gi.repository import Gtk
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from settings import load_words_from_file, manually_add_question, save_questions_to_file
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from exercise import Question
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class CallbackHandler(object):
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def __init__(self, gtk_builder):
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self.builder = gtk_builder
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self.question = None
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def on_manually_add_submit_button_clicked(self, widget):
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question_view = self.builder.get_object("add_question_question_view")
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answer_view = self.builder.get_object("add_question_answer_view")
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question = question_view.get_text()
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answer = answer_view.get_text()
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try:
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manually_add_question(question, answer)
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except:
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return
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question_view.set_text("")
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answer_view.set_text("")
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def on_load_from_file_chooser_file_set(self, widget):
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file_chooser = self.builder.get_object("load_from_file_chooser")
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file_name = file_chooser.get_filename()
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load_words_from_file(file_name)
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def on_save_questions_to_file_button_clicked(self, widget):
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dialog = Gtk.FileChooserDialog("Please choose a file", None
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, Gtk.FileChooserAction.SAVE
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, (Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL
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, Gtk.STOCK_OPEN, Gtk.ResponseType.OK))
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response = dialog.run()
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if(response == Gtk.ResponseType.CANCEL):
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dialog.destroy()
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return
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file_name = dialog.get_filename()
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dialog.destroy()
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save_questions_to_file(file_name)
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def on_submit_answer_button_clicked(self, widget):
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answer_view = self.builder.get_object("answer_view")
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correct_answer_view = self.builder.get_object("correct_answer_view")
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answer_was_correct_view = self.builder.get_object("answer_was_correct_view")
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dispatch_answer_was_correct = {True: "That is correct:"
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, False: "Wrong, correct was:"}
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submit_answer_button = widget
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submit_answer_button.set_sensitive(False)
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answer = answer_view.get_text()
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was_correct = self.question.submit_answer(answer)
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correct_answer_view.set_text(self.question.answer)
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answer_was_correct_view.set_text(dispatch_answer_was_correct[was_correct])
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def on_next_question_button_clicked(self, widget):
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answer_view = self.builder.get_object("answer_view")
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correct_answer_view = self.builder.get_object("correct_answer_view")
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answer_was_correct_view = self.builder.get_object("answer_was_correct_view")
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submit_answer_button = self.builder.get_object("submit_answer_button")
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question_view = self.builder.get_object("question_view")
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submit_answer_button.set_sensitive(True)
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answer_view.set_text("")
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correct_answer_view.set_text("")
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answer_was_correct_view.set_text("")
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self.question = Question.fetch()
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question_view.set_text(self.question.question)
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4
exam/ex03/cfg.py
Normal file
4
exam/ex03/cfg.py
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@@ -0,0 +1,4 @@
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config = {"APP_PATH": "."
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, "WORD_BUCKET_SIZE": 5
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}
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86
exam/ex03/database.py
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86
exam/ex03/database.py
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@@ -0,0 +1,86 @@
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import os
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import sqlite3
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import random
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from cfg import config
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database_path = os.path.join(config["APP_PATH"], "app.sqlite")
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def create_database():
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# truncate the file if it exists
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with open(database_path, "w") as database_file:
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pass
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db = sqlite3.connect(database_path)
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db.execute('''CREATE TABLE QUESTIONS(question TEXT UNIQUE, answer TEXT, correct INT)''')
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db.commit()
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db.close()
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def open_database():
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if(not os.path.exists(database_path)):
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create_database()
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return sqlite3.connect(database_path)
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def update_correct(question, correct):
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"""
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Correct has to be +1 (for a correct answer) or -1 (for a wrong answer).
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"""
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db = open_database()
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cursor = db.cursor()
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try:
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cursor.execute("UPDATE QUESTIONS SET correct=correct + ? WHERE question = ?", (correct, question))
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except sqlite3.IntegrityError:
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pass
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db.commit()
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db.close()
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def add_word(question, answer):
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db = open_database()
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cursor = db.cursor()
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cursor.execute("INSERT INTO QUESTIONS(question, answer, correct) VALUES(?, ?, 0)", (question, answer))
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db.commit()
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db.close()
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def add_words(input_data):
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db = open_database()
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cursor = db.cursor()
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cursor.executemany("INSERT INTO QUESTIONS(question, answer, correct) VALUES(?, ?, 0)", list(input_data.items()))
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db.commit()
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db.close()
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def fetch_question():
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"""
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Fetches a new question from the database.
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The list of question is sorted ascending by number of
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times the question has been answered correctly
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and from the least n elements one is chosen randomly.
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n is either the number of questions in the database divided
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by ``cfg.config["WORD_BUCKET_SIZE"]`` or (if this number is zero)
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or one.
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"""
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db = open_database()
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cursor = db.cursor()
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cursor.execute("SELECT COUNT(question) FROM questions")
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number_of_questions = cursor.fetchone()[0]
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if(number_of_questions == 0):
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raise Exception("No questions in the database")
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fetch_questions = number_of_questions // config["WORD_BUCKET_SIZE"]
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if(fetch_questions == 0):
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fetch_questions = 1
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cursor.execute("SELECT question, answer, correct FROM QUESTIONS ORDER BY correct ASC")
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result = cursor.fetchmany(fetch_questions)
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my_result = random.choice(result)
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return my_result[:2]
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41
exam/ex03/exercise.py
Normal file
41
exam/ex03/exercise.py
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@@ -0,0 +1,41 @@
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from database import fetch_question, update_correct
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class Question(object):
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"""
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This is the throwaway container types for questions.
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It basically stores the question and the answer and
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handles the database access.
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One can fetch a (semi random (see database.fetch_question))
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question from the database using Question.fetch()
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and use submit_question() to both update the database and
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check whether the answer was correct.
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"""
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__slots__ = ["question", "answer"]
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def __init__(self, question, answer):
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self.question = question
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self.answer = answer
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@classmethod
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def fetch(cls):
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data = fetch_question()
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return cls(data[0], data[1])
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def submit_answer(self, answer):
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"""
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Check whether ``answer`` is correct,
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update the database accordingly and
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return ``True`` if the answer was correct,
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``False`` otherwise.
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"""
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correct = -1
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if(answer == self.answer):
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correct = 1
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update_correct(self.question, correct)
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return correct > 0
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345
exam/ex03/main.glade
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345
exam/ex03/main.glade
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@@ -0,0 +1,345 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<!-- Generated with glade 3.20.0 -->
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<interface>
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<requires lib="gtk+" version="3.20"/>
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<object class="GtkWindow" id="window1">
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<property name="can_focus">False</property>
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<signal name="destroy" handler="onDestroy" swapped="no"/>
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<child>
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<object class="GtkNotebook">
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<property name="visible">True</property>
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<property name="can_focus">True</property>
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<child>
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<object class="GtkBox">
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<property name="visible">True</property>
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<property name="can_focus">False</property>
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<property name="orientation">vertical</property>
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<child>
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<object class="GtkLabel" id="question_view">
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<property name="visible">True</property>
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<property name="can_focus">False</property>
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<property name="label" translatable="yes">Question</property>
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</object>
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<packing>
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<property name="expand">False</property>
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<property name="fill">True</property>
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<property name="position">0</property>
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</packing>
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</child>
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<child>
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<object class="GtkEntry" id="answer_view">
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<property name="visible">True</property>
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<property name="can_focus">True</property>
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<property name="placeholder_text" translatable="yes">Answer</property>
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</object>
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<packing>
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<property name="expand">False</property>
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<property name="fill">True</property>
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<property name="position">1</property>
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</packing>
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</child>
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<child>
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<object class="GtkBox">
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<property name="visible">True</property>
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<property name="can_focus">False</property>
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<child>
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<placeholder/>
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</child>
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<child>
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<object class="GtkButton" id="submit_answer_button">
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<property name="label" translatable="yes">Submit Answer</property>
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<property name="visible">True</property>
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<property name="sensitive">False</property>
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<property name="can_focus">True</property>
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<property name="receives_default">True</property>
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<signal name="clicked" handler="on_submit_answer_button_clicked" swapped="no"/>
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</object>
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<packing>
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<property name="expand">False</property>
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<property name="fill">True</property>
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<property name="position">1</property>
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</packing>
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</child>
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<child>
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<placeholder/>
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</child>
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</object>
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<packing>
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<property name="expand">False</property>
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<property name="fill">True</property>
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<property name="position">2</property>
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</packing>
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</child>
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<child>
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<object class="GtkBox">
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<property name="visible">True</property>
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<property name="can_focus">False</property>
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<property name="spacing">4</property>
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<child>
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<object class="GtkBox">
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<property name="visible">True</property>
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<property name="can_focus">False</property>
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<property name="orientation">vertical</property>
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<child>
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<object class="GtkLabel" id="answer_was_correct_view">
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<property name="visible">True</property>
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<property name="can_focus">False</property>
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<property name="label" translatable="yes">No question has been answered </property>
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</object>
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<packing>
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<property name="expand">False</property>
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<property name="fill">True</property>
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<property name="position">0</property>
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</packing>
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</child>
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<child>
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<object class="GtkLabel" id="correct_answer_view">
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<property name="visible">True</property>
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<property name="can_focus">False</property>
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<property name="label" translatable="yes">No question has been answered </property>
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</object>
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<packing>
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<property name="expand">False</property>
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<property name="fill">True</property>
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<property name="position">1</property>
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</packing>
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</child>
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</object>
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<packing>
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<property name="expand">False</property>
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<property name="fill">True</property>
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<property name="position">0</property>
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</packing>
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</child>
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<child>
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<object class="GtkButton" id="next_question_button">
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<property name="label" translatable="yes">Next Question</property>
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<property name="visible">True</property>
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<property name="can_focus">True</property>
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<property name="receives_default">True</property>
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<signal name="clicked" handler="on_next_question_button_clicked" swapped="no"/>
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</object>
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<packing>
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<property name="expand">False</property>
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<property name="fill">True</property>
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<property name="position">1</property>
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</packing>
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</child>
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</object>
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<packing>
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<property name="expand">False</property>
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<property name="fill">False</property>
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<property name="padding">2</property>
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<property name="position">3</property>
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</packing>
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</child>
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<child>
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<placeholder/>
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</child>
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</object>
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</child>
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<child type="tab">
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<object class="GtkLabel" id="exercise_frame">
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<property name="visible">True</property>
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<property name="can_focus">False</property>
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<property name="label" translatable="yes">Exercises</property>
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</object>
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<packing>
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<property name="tab_fill">False</property>
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</packing>
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</child>
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<child>
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||||
<object class="GtkBox">
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<property name="visible">True</property>
|
||||
<property name="can_focus">False</property>
|
||||
<property name="orientation">vertical</property>
|
||||
<child>
|
||||
<object class="GtkBox">
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<property name="visible">True</property>
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||||
<property name="can_focus">False</property>
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<property name="spacing">12</property>
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||||
<child>
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||||
<object class="GtkLabel">
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<property name="visible">True</property>
|
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<property name="can_focus">False</property>
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<property name="label" translatable="yes">Load questions from file</property>
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</object>
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<packing>
|
||||
<property name="expand">False</property>
|
||||
<property name="fill">True</property>
|
||||
<property name="position">0</property>
|
||||
</packing>
|
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</child>
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<child>
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<object class="GtkFileChooserButton" id="load_from_file_chooser">
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<property name="visible">True</property>
|
||||
<property name="can_focus">False</property>
|
||||
<property name="title" translatable="yes"/>
|
||||
<signal name="file-set" handler="on_load_from_file_chooser_file_set" swapped="no"/>
|
||||
</object>
|
||||
<packing>
|
||||
<property name="expand">False</property>
|
||||
<property name="fill">True</property>
|
||||
<property name="position">1</property>
|
||||
</packing>
|
||||
</child>
|
||||
</object>
|
||||
<packing>
|
||||
<property name="expand">False</property>
|
||||
<property name="fill">True</property>
|
||||
<property name="position">0</property>
|
||||
</packing>
|
||||
</child>
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||||
<child>
|
||||
<object class="GtkSeparator">
|
||||
<property name="visible">True</property>
|
||||
<property name="can_focus">False</property>
|
||||
</object>
|
||||
<packing>
|
||||
<property name="expand">False</property>
|
||||
<property name="fill">True</property>
|
||||
<property name="position">1</property>
|
||||
</packing>
|
||||
</child>
|
||||
<child>
|
||||
<object class="GtkBox">
|
||||
<property name="visible">True</property>
|
||||
<property name="can_focus">False</property>
|
||||
<child>
|
||||
<object class="GtkLabel">
|
||||
<property name="visible">True</property>
|
||||
<property name="can_focus">False</property>
|
||||
<property name="label" translatable="yes">Manually add question</property>
|
||||
</object>
|
||||
<packing>
|
||||
<property name="expand">False</property>
|
||||
<property name="fill">True</property>
|
||||
<property name="position">0</property>
|
||||
</packing>
|
||||
</child>
|
||||
<child>
|
||||
<object class="GtkBox">
|
||||
<property name="visible">True</property>
|
||||
<property name="can_focus">False</property>
|
||||
<property name="orientation">vertical</property>
|
||||
<child>
|
||||
<object class="GtkEntry" id="add_question_question_view">
|
||||
<property name="visible">True</property>
|
||||
<property name="can_focus">True</property>
|
||||
<property name="placeholder_text" translatable="yes">Question</property>
|
||||
</object>
|
||||
<packing>
|
||||
<property name="expand">False</property>
|
||||
<property name="fill">True</property>
|
||||
<property name="position">0</property>
|
||||
</packing>
|
||||
</child>
|
||||
<child>
|
||||
<object class="GtkEntry" id="add_question_answer_view">
|
||||
<property name="visible">True</property>
|
||||
<property name="can_focus">True</property>
|
||||
<property name="placeholder_text" translatable="yes">Answer</property>
|
||||
</object>
|
||||
<packing>
|
||||
<property name="expand">False</property>
|
||||
<property name="fill">True</property>
|
||||
<property name="position">1</property>
|
||||
</packing>
|
||||
</child>
|
||||
</object>
|
||||
<packing>
|
||||
<property name="expand">False</property>
|
||||
<property name="fill">True</property>
|
||||
<property name="position">1</property>
|
||||
</packing>
|
||||
</child>
|
||||
<child>
|
||||
<object class="GtkButton" id="manually_add_submit_button">
|
||||
<property name="label" translatable="yes">Submit</property>
|
||||
<property name="visible">True</property>
|
||||
<property name="can_focus">True</property>
|
||||
<property name="receives_default">True</property>
|
||||
<signal name="clicked" handler="on_manually_add_submit_button_clicked" swapped="no"/>
|
||||
</object>
|
||||
<packing>
|
||||
<property name="expand">False</property>
|
||||
<property name="fill">True</property>
|
||||
<property name="position">2</property>
|
||||
</packing>
|
||||
</child>
|
||||
</object>
|
||||
<packing>
|
||||
<property name="expand">False</property>
|
||||
<property name="fill">True</property>
|
||||
<property name="position">2</property>
|
||||
</packing>
|
||||
</child>
|
||||
<child>
|
||||
<object class="GtkSeparator">
|
||||
<property name="visible">True</property>
|
||||
<property name="can_focus">False</property>
|
||||
</object>
|
||||
<packing>
|
||||
<property name="expand">False</property>
|
||||
<property name="fill">True</property>
|
||||
<property name="position">3</property>
|
||||
</packing>
|
||||
</child>
|
||||
<child>
|
||||
<object class="GtkBox">
|
||||
<property name="visible">True</property>
|
||||
<property name="can_focus">False</property>
|
||||
<property name="spacing">25</property>
|
||||
<child>
|
||||
<object class="GtkLabel">
|
||||
<property name="visible">True</property>
|
||||
<property name="can_focus">False</property>
|
||||
<property name="label" translatable="yes">Save questions to file</property>
|
||||
</object>
|
||||
<packing>
|
||||
<property name="expand">False</property>
|
||||
<property name="fill">True</property>
|
||||
<property name="position">0</property>
|
||||
</packing>
|
||||
</child>
|
||||
<child>
|
||||
<object class="GtkButton" id="save_questions_to_file_button">
|
||||
<property name="label" translatable="yes">Save Questions to File</property>
|
||||
<property name="visible">True</property>
|
||||
<property name="can_focus">True</property>
|
||||
<property name="receives_default">True</property>
|
||||
<signal name="clicked" handler="on_save_questions_to_file_button_clicked" swapped="no"/>
|
||||
</object>
|
||||
<packing>
|
||||
<property name="expand">False</property>
|
||||
<property name="fill">True</property>
|
||||
<property name="position">1</property>
|
||||
</packing>
|
||||
</child>
|
||||
</object>
|
||||
<packing>
|
||||
<property name="expand">False</property>
|
||||
<property name="fill">True</property>
|
||||
<property name="position">4</property>
|
||||
</packing>
|
||||
</child>
|
||||
</object>
|
||||
<packing>
|
||||
<property name="position">1</property>
|
||||
</packing>
|
||||
</child>
|
||||
<child type="tab">
|
||||
<object class="GtkLabel" id="settings_frame">
|
||||
<property name="visible">True</property>
|
||||
<property name="can_focus">False</property>
|
||||
<property name="label" translatable="yes">Settings</property>
|
||||
</object>
|
||||
<packing>
|
||||
<property name="position">1</property>
|
||||
<property name="tab_fill">False</property>
|
||||
</packing>
|
||||
</child>
|
||||
</object>
|
||||
</child>
|
||||
</object>
|
||||
</interface>
|
||||
28
exam/ex03/main.py
Normal file
28
exam/ex03/main.py
Normal file
@@ -0,0 +1,28 @@
|
||||
import gi
|
||||
gi.require_version('Gtk', '3.0')
|
||||
from gi.repository import Gtk
|
||||
|
||||
|
||||
from callbacks import CallbackHandler
|
||||
|
||||
builder = Gtk.Builder()
|
||||
builder.add_from_file("main.glade")
|
||||
|
||||
callback_handler = CallbackHandler(builder)
|
||||
|
||||
handlers = {
|
||||
"onDestroy": Gtk.main_quit
|
||||
, "on_manually_add_submit_button_clicked": callback_handler.on_manually_add_submit_button_clicked
|
||||
, "on_load_from_file_chooser_file_set": callback_handler.on_load_from_file_chooser_file_set
|
||||
, "on_save_questions_to_file_button_clicked": callback_handler.on_save_questions_to_file_button_clicked
|
||||
, "on_submit_answer_button_clicked": callback_handler.on_submit_answer_button_clicked
|
||||
, "on_next_question_button_clicked": callback_handler.on_next_question_button_clicked
|
||||
}
|
||||
|
||||
builder.connect_signals(handlers)
|
||||
|
||||
|
||||
window = builder.get_object("window1")
|
||||
window.show_all()
|
||||
|
||||
Gtk.main()
|
||||
26
exam/ex03/settings.py
Normal file
26
exam/ex03/settings.py
Normal file
@@ -0,0 +1,26 @@
|
||||
import os
|
||||
import json
|
||||
from database import add_word, add_words, open_database
|
||||
|
||||
def load_words_from_file(file_name):
|
||||
if(not os.path.exists(file_name)):
|
||||
raise Exception("File does not exist")
|
||||
|
||||
with open(file_name) as fin:
|
||||
data = {line[0]: line[1] for line in
|
||||
[ line.split() for line in fin if line]
|
||||
if len(line) == 2}
|
||||
add_words(data)
|
||||
|
||||
def manually_add_question(question, answer):
|
||||
add_word(question, answer)
|
||||
|
||||
def save_questions_to_file(file_name):
|
||||
db = open_database()
|
||||
with open(file_name, "w") as fout:
|
||||
cursor = db.cursor()
|
||||
cursor.execute("SELECT question, answer, correct FROM QUESTIONS")
|
||||
data = [{"question":i[0], "answer": i[1], "correct": i[2]} for i in cursor.fetchall()]
|
||||
|
||||
json.dump(data, fout)
|
||||
db.close()
|
||||
5
exam/ex03/words.tx
Normal file
5
exam/ex03/words.tx
Normal file
@@ -0,0 +1,5 @@
|
||||
gut good
|
||||
schlecht bad
|
||||
tag day
|
||||
dummkopf furkan
|
||||
|
||||
Reference in New Issue
Block a user