from django import forms from yaksh.models import get_model_class, Profile, Quiz, Question, TestCase, Course, StandardTestCase, StdoutBasedTestCase from django.contrib.auth import authenticate from django.contrib.auth.models import User from django.contrib.contenttypes.models import ContentType from taggit.managers import TaggableManager from taggit.forms import TagField from django.forms.models import inlineformset_factory from django.db.models import Q from string import letters, punctuation, digits import datetime import pytz 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"), ) test_case_types = ( ("standardtestcase", "Standard Testcase"), ("stdoutbasedtestcase", "Stdout Based Testcase"), ("mcqtestcase", "MCQ Testcase"), ) 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)) def get_object_form(model, exclude_fields=None): model_class = get_model_class(model) class _ObjectForm(forms.ModelForm): class Meta: model = model_class exclude = exclude_fields return _ObjectForm 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.') timezone = forms.ChoiceField(choices=[(tz, tz) for tz in pytz.common_timezones], initial=pytz.utc) 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.timezone = cleaned_data["timezone"] 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.ModelForm): """Creates a form to add or edit a Quiz. It has the related fields and functions required.""" def __init__(self, *args, **kwargs): user = kwargs.pop('user') super(QuizForm, self).__init__(*args, **kwargs) self.fields['prerequisite'] = forms.ModelChoiceField( queryset=Quiz.objects.filter(course__creator=user)) self.fields['prerequisite'].required = False self.fields['course'] = forms.ModelChoiceField( queryset=Course.objects.filter(Q(creator=user)| Q(teachers=user)).distinct()) class Meta: model = Quiz fields = '__all__' class QuestionForm(forms.ModelForm): """Creates a form to add or edit a Question. It has the related fields and functions required.""" class Meta: model = Question exclude = ['user'] 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): user = kwargs.pop("user") super(QuestionFilterForm, self).__init__(*args, **kwargs) questions = Question.objects.filter(user_id=user.id) 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)) class CourseForm(forms.ModelForm): class Meta: model = Course fields = ['name', 'active', 'enrollment'] class ProfileForm(forms.ModelForm): """ profile form for students and moderators """ class Meta: model = Profile fields = ['first_name', 'last_name', 'institute', 'department', 'roll_number', 'position', 'timezone'] first_name = forms.CharField(max_length=30) last_name = forms.CharField(max_length=30) def __init__(self, *args, **kwargs): if 'user' in kwargs: user = kwargs.pop('user') super(ProfileForm, self).__init__(*args, **kwargs) self.fields['first_name'].initial = user.first_name self.fields['last_name'].initial = user.last_name class UploadFileForm(forms.Form): file = forms.FileField()