Django Basics Exam Helper

# Django Basics Exam Helper


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# How-to-add-class-and-other-atrributes-to-form-fields-in-django ->
# https://www.letscodemore.com/blog/how-to-add-class-and-other-atrributes-to-form-fields-in-django/
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# Django form field types: Widgets, options and validations ->
# https://www.webforefront.com/django/formfieldtypesandvalidation.html
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# How to setup Django project from 0 ->
# https://pastebin.com/V5a9GanA
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# Disable fields and delete:

class AlbumDeleteForm(AlbumBaseForm):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.__disable_fields()

    def save(self, commit=True):
        if commit:
            self.instance.delete()
        return self.instance

    def __disable_fields(self):
        for field in self.fields.values():
            field.widget.attrs['disabled'] = True
            field.widget.attrs['readonly'] = True
            field.required = False


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# BaseForm ,labels and placeholders:

class AlbumBaseForm(forms.ModelForm):
    class Meta:
        model = AlbumModel
        fields = '__all__'

        labels = {
            'image_url': 'Image URL'
        }

        widgets = {
            'album_name': forms.TextInput(
                attrs={
                    'placeholder': 'Add Album Name...'
                }
            ),
            'artist': forms.TextInput(
                attrs={
                    'placeholder': 'Add Artist...'
                }
            ),
            'description': forms.Textarea(
                attrs={
                    'placeholder': 'Add Description...'
                }
            ),
        }


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# Hide password: ********
class ProfileBaseForm(forms.ModelForm):
    class Meta:
        model = Profile
        fields = ["email", "age", "password", ]
        # Password input(hidden).
        widgets = {
            'password': forms.PasswordInput(),
        }


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# Form methods:

    if request.method == 'GET':
        form = SomeForm()
    else:
        form = SomeForm(request.POST)
        if form.is_valid():
            form.save()
            return redirect('index')

    context = {'form': form, }


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# Choice Enum Mixin:

class ChoicesEnumMixin:
    @classmethod
    def choices(cls):
        return [(x.name, x.value) for x in cls]

    @classmethod
    def max_len(cls):
        return max(len(name) for name, _ in cls.choices())


class Gender(ChoicesEnumMixin, Enum):
    male = 'Male'
    female = 'Female'
    DoNotShow = 'Do not show'


# in model:
gender = models.CharField(
        choices=Gender.choices(),
        max_length=Gender.max_len(),
    )


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