diff options
Diffstat (limited to 'yaksh/forms.py')
| -rw-r--r-- | yaksh/forms.py | 267 |
1 files changed, 267 insertions, 0 deletions
diff --git a/yaksh/forms.py b/yaksh/forms.py new file mode 100644 index 0000000..de40419 --- /dev/null +++ b/yaksh/forms.py @@ -0,0 +1,267 @@ +from django import forms +from yaksh.models import Profile, Quiz, Question, TestCase + +from django.contrib.auth import authenticate +from django.contrib.auth.models import User +from taggit.managers import TaggableManager +from taggit.forms import TagField +from django.forms.models import inlineformset_factory + +from string import letters, punctuation, digits +import datetime + +languages = ( + ("select", "Select Language"), + ("python", "Python"), + ("bash", "Bash"), + ("c", "C Language"), + ("cpp", "C++ Language"), + ("java", "Java Language"), + ("scilab", "Scilab"), + ) + +question_types = ( + ("select", "Select Question Type"), + ("mcq", "Multiple Choice"), + ("mcc", "Multiple Correct Choices"), + ("code", "Code"), + ("upload", "Assignment Upload"), + ) + +UNAME_CHARS = letters + "._" + digits +PWD_CHARS = letters + punctuation + digits + +attempts = [(i, i) for i in range(1, 6)] +attempts.append((-1, 'Infinite')) +days_between_attempts = ((j, j) for j in range(401)) + + +class UserRegisterForm(forms.Form): + """A Class to create new form for User's Registration. + It has the various fields and functions required to register + a new user to the system""" + + username = forms.CharField(max_length=30, help_text='Letters, digits,\ + period and underscores only.') + email = forms.EmailField() + password = forms.CharField(max_length=30, widget=forms.PasswordInput()) + confirm_password = forms.CharField\ + (max_length=30, widget=forms.PasswordInput()) + first_name = forms.CharField(max_length=30) + last_name = forms.CharField(max_length=30) + roll_number = forms.CharField\ + (max_length=30, help_text="Use a dummy if you don't have one.") + institute = forms.CharField\ + (max_length=128, help_text='Institute/Organization') + department = forms.CharField\ + (max_length=64, help_text='Department you work/study at') + position = forms.CharField\ + (max_length=64, help_text='Student/Faculty/Researcher/Industry/etc.') + + def clean_username(self): + u_name = self.cleaned_data["username"] + if u_name.strip(UNAME_CHARS): + msg = "Only letters, digits, period and underscore characters are"\ + " allowed in username" + raise forms.ValidationError(msg) + try: + User.objects.get(username__exact=u_name) + raise forms.ValidationError("Username already exists.") + except User.DoesNotExist: + return u_name + + def clean_password(self): + pwd = self.cleaned_data['password'] + if pwd.strip(PWD_CHARS): + raise forms.ValidationError("Only letters, digits and punctuation\ + are allowed in password") + return pwd + + def clean_confirm_password(self): + c_pwd = self.cleaned_data['confirm_password'] + pwd = self.data['password'] + if c_pwd != pwd: + raise forms.ValidationError("Passwords do not match") + + return c_pwd + + def save(self): + u_name = self.cleaned_data["username"] + u_name = u_name.lower() + pwd = self.cleaned_data["password"] + email = self.cleaned_data['email'] + new_user = User.objects.create_user(u_name, email, pwd) + + new_user.first_name = self.cleaned_data["first_name"] + new_user.last_name = self.cleaned_data["last_name"] + new_user.save() + + cleaned_data = self.cleaned_data + new_profile = Profile(user=new_user) + new_profile.roll_number = cleaned_data["roll_number"] + new_profile.institute = cleaned_data["institute"] + new_profile.department = cleaned_data["department"] + new_profile.position = cleaned_data["position"] + new_profile.save() + + return u_name, pwd + + +class UserLoginForm(forms.Form): + """Creates a form which will allow the user to log into the system.""" + + username = forms.CharField(max_length=30) + password = forms.CharField(max_length=30, widget=forms.PasswordInput()) + + def clean(self): + super(UserLoginForm, self).clean() + try: + u_name, pwd = self.cleaned_data["username"],\ + self.cleaned_data["password"] + user = authenticate(username=u_name, password=pwd) + except Exception: + raise forms.ValidationError\ + ("Username and/or Password is not entered") + if not user: + raise forms.ValidationError("Invalid username/password") + return user + + +class QuizForm(forms.Form): + """Creates a form to add or edit a Quiz. + It has the related fields and functions required.""" + + def __init__(self, *args, **kwargs): + super(QuizForm, self).__init__(*args, **kwargs) + quizzes = [('', 'Select a prerequisite quiz')] + quizzes = quizzes + \ + list(Quiz.objects.values_list('id', 'description')) + self.fields['prerequisite'] = forms.CharField(required=False, + widget=forms.Select(choices=quizzes)) + + start_date = forms.DateField(initial=datetime.date.today(), required=False) + start_time = forms.TimeField(initial=datetime.datetime.now().time(), required=False) + end_date = forms.DateField(initial=datetime.date(2199, 1, 1), required=False) + end_time = forms.TimeField(initial=datetime.time(0, 0, 0, 0), required=False) + duration = forms.IntegerField(help_text='Will be taken in minutes') + active = forms.BooleanField(required=False) + description = forms.CharField(max_length=256, widget=forms.Textarea\ + (attrs={'cols': 20, 'rows': 1})) + pass_criteria = forms.FloatField(initial=40, + help_text='Will be taken as percentage') + language = forms.CharField(widget=forms.Select(choices=languages)) + attempts_allowed = forms.IntegerField(widget=forms.Select(choices=attempts)) + time_between_attempts = forms.IntegerField\ + (widget=forms.Select(choices=days_between_attempts), + help_text='Will be in days') + + def save(self): + start_date = self.cleaned_data["start_date"] + start_time = self.cleaned_data["start_time"] + end_date = self.cleaned_data["end_date"] + end_time = self.cleaned_data["end_time"] + duration = self.cleaned_data["duration"] + active = self.cleaned_data['active'] + description = self.cleaned_data["description"] + pass_criteria = self.cleaned_data["pass_criteria"] + language = self.cleaned_data["language"] + prerequisite = self.cleaned_data["prerequisite"] + attempts_allowed = self.cleaned_data["attempts_allowed"] + time_between_attempts = self.cleaned_data["time_between_attempts"] + new_quiz = Quiz() + new_quiz.start_date_time = datetime.datetime.combine(start_date, + start_time) + new_quiz.end_date_time = datetime.datetime.combine(end_date, + end_time) + new_quiz.duration = duration + new_quiz.active = active + new_quiz.description = description + new_quiz.pass_criteria = pass_criteria + new_quiz.language = language + new_quiz.prerequisite_id = prerequisite + new_quiz.attempts_allowed = attempts_allowed + new_quiz.time_between_attempts = time_between_attempts + new_quiz.save() + + +class QuestionForm(forms.ModelForm): + """Creates a form to add or edit a Question. + It has the related fields and functions required.""" + + summary = forms.CharField(widget=forms.Textarea\ + (attrs={'cols': 40, 'rows': 1})) + description = forms.CharField(widget=forms.Textarea\ + (attrs={'cols': 40, 'rows': 1})) + points = forms.FloatField() + test = forms.CharField(widget=forms.Textarea\ + (attrs={'cols': 40, 'rows': 1}), required=False) + options = forms.CharField(widget=forms.Textarea\ + (attrs={'cols': 40, 'rows': 1}), required=False) + language = forms.CharField(max_length=20, widget=forms.Select\ + (choices=languages)) + type = forms.CharField(max_length=8, widget=forms.Select\ + (choices=question_types)) + active = forms.BooleanField(required=False) + tags = TagField(required=False) + snippet = forms.CharField(widget=forms.Textarea\ + (attrs={'cols': 40, 'rows': 1}), required=False) + ref_code_path = forms.CharField(widget=forms.Textarea\ + (attrs={'cols': 40, 'rows': 1}), required=False) + + def save(self, commit=True): + summary = self.cleaned_data.get("summary") + description = self.cleaned_data.get("description") + points = self.cleaned_data.get("points") + test = self.cleaned_data.get("test") + options = self.cleaned_data.get("options") + language = self.cleaned_data.get("language") + type = self.cleaned_data.get("type") + active = self.cleaned_data.get("active") + snippet = self.cleaned_data.get("snippet") + + new_question = Question() + new_question.summary = summary + new_question.description = description + new_question.points = points + new_question.test = test + new_question.options = options + new_question.language = language + new_question.type = type + new_question.active = active + new_question.snippet = snippet + new_question = super(QuestionForm, self).save(commit=False) + if commit: + new_question.save() + + return new_question + + class Meta: + model = Question + + +class RandomQuestionForm(forms.Form): + question_type = forms.CharField(max_length=8, widget=forms.Select\ + (choices=question_types)) + marks = forms.CharField(max_length=8, widget=forms.Select\ + (choices=(('select', 'Select Marks'),))) + shuffle_questions = forms.BooleanField(required=False) + + +class QuestionFilterForm(forms.Form): + def __init__(self, *args, **kwargs): + super(QuestionFilterForm, self).__init__(*args, **kwargs) + questions = Question.objects.all() + points_list = questions.values_list('points', flat=True).distinct() + points_options = [('select', 'Select Marks')] + points_options.extend([(point, point) for point in points_list]) + self.fields['marks'] = forms.FloatField(widget=forms.Select\ + (choices=points_options)) + + language = forms.CharField(max_length=8, widget=forms.Select\ + (choices=languages)) + question_type = forms.CharField(max_length=8, widget=forms.Select\ + (choices=question_types)) + + +TestCaseFormSet = inlineformset_factory(Question, TestCase,\ + can_order=False, can_delete=False, extra=1) |