Initial

app/base/forms/fields.py

@@ -0,0 +1,40 @@
+from django.db import models
+from django import forms
+
+from app.base.forms.widgets.date_widget import DateWithNow
+from app.base.forms.widgets.datetime_widget import DateTimeWithNow
+
+from decimal import Decimal
+
+
+class AutosizeTextarea(forms.Textarea):
+    template_name = 'forms/widgets/textarea.html'
+
+
+class TextField(models.TextField):
+    def formfield(self, **kwargs):
+        if 'widget' not in kwargs:  # only if no other is set (admin UI)
+            kwargs['widget'] = AutosizeTextarea
+        return super().formfield(**kwargs)
+
+
+class DateTimeField(models.DateTimeField):
+    def formfield(self, **kwargs):
+        if 'widget' not in kwargs:  # only if no other is set (admin UI)
+            kwargs['widget'] = DateTimeWithNow
+        return super().formfield(**kwargs)
+
+
+class DateField(models.DateField):
+    def formfield(self, **kwargs):
+        if 'widget' not in kwargs:  # only if no other is set (admin UI)
+            kwargs['widget'] = DateWithNow
+        return super().formfield(**kwargs)
+
+
+class CurrencyField(models.DecimalField):
+    def __init__(self, *args, **kwargs) -> None:
+        kwargs['decimal_places'] = kwargs.get('decimal_places', 2)
+        kwargs['max_digits'] = kwargs.get('max_digits', 10)
+        kwargs['default'] = kwargs.get('default', Decimal(0))
+        super().__init__(*args, **kwargs)

app/base/forms/widgets/date_widget.py

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+from django import forms
+
+
+class DateWithNow(forms.DateInput):
+    template_name = 'forms/widgets/date.html'
+
+    def __init__(self, attrs=None, format=None):
+        rv = attrs or {}
+        rv['type'] = 'date'
+        super().__init__(rv, format='%Y-%m-%d')
+
+    # OR: prevent super from converting dateformat.date to str
+    # def format_value(self, value: date) -> date:
+    #     return value

app/base/forms/widgets/datetime_widget.py

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+from django import forms
+from django.forms.utils import to_current_timezone
+from django.http.request import QueryDict
+
+from datetime import datetime
+
+
+class DateTimeWithNow(forms.DateTimeInput):
+    template_name = 'forms/widgets/datetime.html'
+
+    def format_value(self, value: datetime) -> datetime:
+        return to_current_timezone(value)
+
+    def value_from_datadict(self, data: QueryDict, files, name: str) \
+            -> 'datetime|None':
+        day, time = data.getlist(name)
+        if not day:
+            return None
+        y, m, d = day.split('-')
+        h, i, *s = time.split(':') if time else (0, 0, 0)
+        return datetime(
+            int(y), int(m), int(d), int(h), int(i), int(s[0] if s else 0))