Source code for polaris.integrations.forms

from django import forms

[docs]class TransactionForm(forms.Form): """ Base class for collecting transaction information Developers must define subclasses to collect additional information and apply additional validation. Defines the :class:`.forms.DecimalField` `amount` and also has a non-form attribute `asset`, which will be populated by the `asset_code` request parameter used in `/transactions/deposit/webapp` and `/transactions/withdraw/webapp` endpoints. The `amount` field is validated with the :meth:`clean_amount` function, which ensures the amount is within the bounds for the asset type. """ amount = forms.DecimalField( min_value=0, widget=forms.NumberInput(attrs={"class": "input"}), max_digits=50, decimal_places=25, ) asset = None def clean_amount(self): """Validate the provided amount of an asset.""" # TODO: do we want all amounts to be rounded? # 0.001 of Bitcoin should not be rounded to 0.00 # but 1.123 USD should be rounded to 1.12 USD. # Idea: add significant decimal places column to Asset? amount = round(self.cleaned_data["amount"], 2) if self.asset: if amount < self.asset.deposit_min_amount: raise forms.ValidationError( f"Amount is below minimum for asset {self.asset.code}" ) elif amount > self.asset.deposit_max_amount: raise forms.ValidationError( f"Amount is above maximum for asset {self.asset.code}" ) return amount