I have serious OOP design problem, and i don't know the way to solve it.
*Here are two of my views:*
def exercise(request):
if request.method == 'GET':
request.session["exercise_start"] = time()
form = ExerciseForm(language = request.session["language"],
dictionary = request.session["dictionary"])
elif request.method == 'POST':
form = ExerciseForm(request.POST, language = request.session[
"language"], dictionary = request.session["dictionary"])
if form.is_valid():
ExerciseTime = time() - request.session["exercise_start"]
ExerciseText = form.cleaned_data["exercise_field"]
if request.user.is_authenticated():
exercise = Exercise(player = request.user)
exercise.time = ExerciseTime
exercise.save()
request.session["exercise_text"] = ExerciseText
request.session["exercise_time"] = ExerciseTime
return redirect('game_result')
return render(request, "game/exercise.html", {'form': form})
def result(request):
exercise_result = {"exercise_text": request.session["exercise_text"],
"exercise_time": request.session["exercise_time"]}
return render(request, "game/result.html", exercise_result)
*And here is my "exercise form" which obviously used by "exercise view":*
class ExerciseForm(forms.Form):
def __init__(self, *args, **kwargs):
self.language = kwargs.pop('language', None)
self.dictionary = kwargs.pop('dictionary', None)
self.exercise_text = self.getRandomText(lng=self.language, dct=self.
dictionary)
self.SetExText()
super(ExerciseForm, self).__init__(*args, **kwargs)
def SetExText(self):
self.exercise_text = self.getRandomText(self.language, self.
dictionary)
self.exercise_field.exercise_text = self.exercise_text
def getRandomText(self, lng, dct):
count = ExerciseText.objects.filter(dictionary__dictionary_name =
dct).count()
if count:
rand_id = sample(range(1, count), 1)
return ExerciseText.objects.get(id__in=rand_id).text
else:
return "lol"
exercise_field = ExerciseField(exercise_text = exercise_text, widget =
forms.TextInput(attrs = {'autocomplete': 'off', 'autofocus': 'autofocus'}))
*My field, used in form above:*
class ExerciseField(forms.CharField):
def __init__(self, exercise_text, *args, **kwargs):
self.exercise_text = exercise_text
super(ExerciseField, self).__init__(*args, **kwargs)
def validate(self, value):
if value != self.exercise_text:
raise ValidationError("Texts don't match")
*And finally, simple template:*
{% extends "base.html" %}
{% block content %}
<form action="game_result" method="post">
{% csrf_token %}
{{ form.exercise_text }}<br/>
{{ form.as_p }}
</form>
{% endblock content %}
What i try to do:
I try to bargain two arguments which come from "create view" which not
represent here in sake of space saving, and these two arguments are
"language", and "dictionary".
I use them to get a record from db table, to get random text.
And here I need your help, because i can't dynamically create variable
"exercise_text", because i need it in Class instance.
Meaning - it need to be predefined before I'll use my "exercise_field.
And also i can't put exercise_field inside of "__init__", because it will
not be accessible in template.
*In short:*
I need to get random record from db, and i need to put this record in my
field. How to do that? Dynamically.
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