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Location: symposion_app/registrasion/forms.py
e9ebf5da03ea
5.3 KiB
text/x-python
Writes inventory and overview documentation, and updates docstrings on a LOT of modules.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 | from registrasion.models import commerce
from registrasion.models import inventory
from django import forms
class ApplyCreditNoteForm(forms.Form):
def __init__(self, user, *a, **k):
''' User: The user whose invoices should be made available as
choices. '''
self.user = user
super(ApplyCreditNoteForm, self).__init__(*a, **k)
self.fields["invoice"].choices = self._unpaid_invoices_for_user
def _unpaid_invoices_for_user(self):
invoices = commerce.Invoice.objects.filter(
status=commerce.Invoice.STATUS_UNPAID,
user=self.user,
)
return [
(invoice.id, "Invoice %(id)d - $%(value)d" % invoice.__dict__)
for invoice in invoices
]
invoice = forms.ChoiceField(
required=True,
)
class ManualCreditNoteRefundForm(forms.ModelForm):
class Meta:
model = commerce.ManualCreditNoteRefund
fields = ["reference"]
class ManualPaymentForm(forms.ModelForm):
class Meta:
model = commerce.ManualPayment
fields = ["reference", "amount"]
# Products forms -- none of these have any fields: they are to be subclassed
# and the fields added as needs be.
class _ProductsForm(forms.Form):
PRODUCT_PREFIX = "product_"
''' Base class for product entry forms. '''
def __init__(self, *a, **k):
if "product_quantities" in k:
initial = self.initial_data(k["product_quantities"])
k["initial"] = initial
del k["product_quantities"]
super(_ProductsForm, self).__init__(*a, **k)
@classmethod
def field_name(cls, product):
return cls.PRODUCT_PREFIX + ("%d" % product.id)
@classmethod
def set_fields(cls, category, products):
''' Sets the base_fields on this _ProductsForm to allow selecting
from the provided products. '''
pass
@classmethod
def initial_data(cls, product_quantites):
''' Prepares initial data for an instance of this form.
product_quantities is a sequence of (product,quantity) tuples '''
return {}
def product_quantities(self):
''' Yields a sequence of (product, quantity) tuples from the
cleaned form data. '''
return iter([])
class _QuantityBoxProductsForm(_ProductsForm):
''' Products entry form that allows users to enter quantities
of desired products. '''
@classmethod
def set_fields(cls, category, products):
for product in products:
if product.description:
help_text = "$%d each -- %s" % (
product.price,
product.description,
)
else:
help_text = "$%d each" % product.price
field = forms.IntegerField(
label=product.name,
help_text=help_text,
min_value=0,
)
cls.base_fields[cls.field_name(product)] = field
@classmethod
def initial_data(cls, product_quantities):
initial = {}
for product, quantity in product_quantities:
initial[cls.field_name(product)] = quantity
return initial
def product_quantities(self):
for name, value in self.cleaned_data.items():
if name.startswith(self.PRODUCT_PREFIX):
product_id = int(name[len(self.PRODUCT_PREFIX):])
yield (product_id, value, name)
class _RadioButtonProductsForm(_ProductsForm):
''' Products entry form that allows users to enter quantities
of desired products. '''
FIELD = "chosen_product"
@classmethod
def set_fields(cls, category, products):
choices = []
for product in products:
choice_text = "%s -- $%d" % (product.name, product.price)
choices.append((product.id, choice_text))
cls.base_fields[cls.FIELD] = forms.TypedChoiceField(
label=category.name,
widget=forms.RadioSelect,
choices=choices,
empty_value=0,
coerce=int,
)
@classmethod
def initial_data(cls, product_quantities):
initial = {}
for product, quantity in product_quantities:
if quantity > 0:
initial[cls.FIELD] = product.id
break
return initial
def product_quantities(self):
ours = self.cleaned_data[self.FIELD]
choices = self.fields[self.FIELD].choices
for choice_value, choice_display in choices:
yield (
choice_value,
1 if ours == choice_value else 0,
self.FIELD,
)
def ProductsForm(category, products):
''' Produces an appropriate _ProductsForm subclass for the given render
type. '''
# Each Category.RENDER_TYPE value has a subclass here.
RENDER_TYPES = {
inventory.Category.RENDER_TYPE_QUANTITY: _QuantityBoxProductsForm,
inventory.Category.RENDER_TYPE_RADIO: _RadioButtonProductsForm,
}
# Produce a subclass of _ProductsForm which we can alter the base_fields on
class ProductsForm(RENDER_TYPES[category.render_type]):
pass
ProductsForm.set_fields(category, products)
return ProductsForm
class VoucherForm(forms.Form):
voucher = forms.CharField(
label="Voucher code",
help_text="If you have a voucher code, enter it here",
required=False,
)
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