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108 lines
4.1 KiB
Python
108 lines
4.1 KiB
Python
from functools import partial
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from typing import ClassVar
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from django import forms
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from django.core.files import File
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from django.shortcuts import redirect
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from django.utils.decorators import method_decorator
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from django.views.generic import FormView
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from core.models.config import Config, UploadedImage
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from users.decorators import identity_required
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@method_decorator(identity_required, name="dispatch")
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class SettingsPage(FormView):
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"""
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Shows a settings page dynamically created from our settings layout
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at the bottom of the page. Don't add this to a URL directly - subclass!
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"""
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options_class = Config.IdentityOptions
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template_name = "settings/settings.html"
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section: ClassVar[str]
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options: dict[str, dict[str, str | int]]
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layout: dict[str, list[str]]
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def get_form_class(self):
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# Create the fields dict from the config object
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fields = {}
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for key, details in self.options.items():
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field_kwargs = {}
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config_field = self.options_class.__fields__[key]
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if config_field.type_ is bool:
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form_field = partial(
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forms.BooleanField,
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widget=forms.Select(
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choices=[(True, "Enabled"), (False, "Disabled")]
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),
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)
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elif config_field.type_ is UploadedImage:
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form_field = forms.ImageField
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elif config_field.type_ is str:
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if details.get("display") == "textarea":
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form_field = partial(
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forms.CharField,
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widget=forms.Textarea,
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)
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else:
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form_field = forms.CharField
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elif config_field.type_ is int:
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choices = details.get("choices")
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if choices:
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field_kwargs["widget"] = forms.Select(choices=choices)
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for int_kwarg in {"min_value", "max_value", "step_size"}:
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val = details.get(int_kwarg)
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if val:
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field_kwargs[int_kwarg] = val
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form_field = forms.IntegerField
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else:
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raise ValueError(f"Cannot render settings type {config_field.type_}")
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fields[key] = form_field(
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label=details["title"],
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help_text=details.get("help_text", ""),
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required=details.get("required", False),
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**field_kwargs,
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)
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# Create a form class dynamically (yeah, right?) and return that
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return type("SettingsForm", (forms.Form,), fields)
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def load_config(self):
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return Config.load_identity(self.request.identity)
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def save_config(self, key, value):
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Config.set_identity(self.request.identity, key, value)
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def get_initial(self):
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config = self.load_config()
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initial = {}
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for key in self.options.keys():
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initial[key] = getattr(config, key)
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return initial
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def get_context_data(self):
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context = super().get_context_data()
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context["section"] = self.section
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# Gather fields into fieldsets
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context["fieldsets"] = {}
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for title, fields in self.layout.items():
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context["fieldsets"][title] = [context["form"][field] for field in fields]
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return context
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def form_valid(self, form):
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# Save each key
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for field in form:
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if field.field.__class__.__name__ == "ImageField":
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# These can be cleared with an extra checkbox
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if self.request.POST.get(f"{field.name}__clear"):
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self.save_config(field.name, None)
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continue
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# We shove the preview values in initial_data, so only save file
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# fields if they have a File object.
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if not isinstance(form.cleaned_data[field.name], File):
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continue
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self.save_config(
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field.name,
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form.cleaned_data[field.name],
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)
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return redirect(".")
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