def cheat_check(user_answer, disallowed, variables):
"""Checks whether the user has used symbols/functions that are not allowed"""
standard_disallowed = ['int', 'test', "'", '@', '?']
for x in disallowed:
replaced_x = replace_variables_from_array(variables, x)
standard_disallowed.append(parse_solution(replaced_x, ''))
for s in standard_disallowed:
if str(s).replace(' ', '') in str(user_answer):
return True
return False
def required_check(user_answer, required, variables):
"""Checks if the user answer meets the requirements set by the teacher"""
return_value = False
for x in range(0, len(required)):
required[x] = replace_variables_from_array(variables, required[x])
for s in required:
try:
t_s = parse_solution(s, '')
t_s = parenthesis_removal(t_s)
if str(t_s).replace(' ', '') in str(user_answer):
break
#elif parse_using_sympy(latex_to_sympy(t_s) + '+0' + '==' + latex_to_sympy(user_answer) + '+0'):
# break
return_value = True
except Exception as e:
print('in exception ')
print(e)
if str(s) not in str(user_answer):
return_value = True
break
return return_value
def make_answer_context_dict(form_values):
"""Returns context dict for use on the answer page"""
user_answer = form_values['user_answer']
user_answer = user_answer.replace(',','.')
user_answer = user_answer.replace('..', ',') # A cheeky way to circumvent removal of ','
template_type = form_values['template_type']
template_specific = form_values['template_specific']
q = Template.objects.get(pk=form_values['primary_key'])
variable_dictionary = form_values['variable_dictionary'].split('§')
replacing_words = form_values['replacing_words']
random_domain = q.random_domain
if template_type != 'blanks':
answer = q.answer.replace('\\\\', '\\')
answer = answer.replace('(', '+parenthesisleft+') # Done to preserve original parenthesis
answer = answer.replace(')', '+parenthesisright+') # Done to preserve original parenthesis
answer = replace_variables_from_array(variable_dictionary, answer)
#answer = add_phantom_minus(answer)
else:
#answer = get_values_from_position(template_specific, q.solution.replace('\\\\', '\\'))
answer = get_fillin_answers(q.fill_in.replace('\\\\', '\\'))
answer = answer.replace('(', '+parenthesisleft+') # Done to preserve original parenthesis
answer = answer.replace(')', '+parenthesisright+') # Done to preserve original parenthesis
answer = replace_variables_from_array(variable_dictionary, answer)
original_user_answer = user_answer.replace('§', '\\text{ og }')
#answer = remove_pm_and_add_parenthesis(answer) # Replace with new parenthesis parsing
answer = parse_answer(answer, random_domain)
answer = parenthesis_removal(answer)
answer = answer.replace('`', '')
answer = answer.split('§')
solution = str(q.question_text.replace('\\\\', '\\')) + "§" + str(q.solution.replace('\\\\', '\\'))
#solution = add_phantom_minus(solution)
solution = solution.replace('(', '+parenthesisleft+') # Done to preserve original parenthesis
solution = solution.replace(')', '+parenthesisright+') # Done to preserve original parenthesis
solution = replace_variables_from_array(variable_dictionary, solution)
#solution = remove_pm_and_add_parenthesis(solution)
solution = parse_solution(solution, random_domain)
solution = parenthesis_removal(solution)
if len(replacing_words) > 0:
solution = replace_words(solution, replacing_words)['sentence']
user_answer = user_answer.split('§') # If a string doesn't contain the character it returns a list with 1 element
# We format both the user answer and the answer the same way.
user_answer = [after_equal_sign(x) for x in user_answer] # Only get the values after last equal sign.
#user_answer = calculate_array(user_answer, random_domain)
answer = [after_equal_sign(x) for x in answer]
#answer = calculate_array(answer, random_domain)
answer_text = "\\text{Du har svart }" + original_user_answer + \
"\\text{. Det er feil. Svaret er: }" + '\\text{ og }'.join(answer)
correct_answer = check_answer(user_answer, answer, template_type, q.margin_of_error) # Check if the user answered correctly.
if correct_answer:
answer_text = "\\text{Du har svart riktig!}"
answer_text = latex_exceptions(answer_text)
graph = q.graph
if graph:
graph = json.loads(graph)
for x in range(0, len(graph)):
graph[x] = replace_variables_from_array(variable_dictionary, graph[x])
graph[x] = parse_solution(graph[x], q.random_domain)
if graph != None and graph != '': # to prevent error if none
graph = json.dumps(graph)
context_dict = {'title': "Oppgavegen", 'answer': str(answer_text),
'solution': solution, 'user_won': correct_answer, 'graph': graph,
'graph_color' : q.graph_color, 'graph_settings': q.graph_settings}
return context_dict