145 lines
3.7 KiB
Python
145 lines
3.7 KiB
Python
from django import forms
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from django.contrib.auth.forms import UserCreationForm
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from django.core.exceptions import FieldDoesNotExist
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from django.forms import ModelForm
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from .models import Account, Hook, Strategy, Trade, TradingTime, User
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class RestrictedFormMixin:
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"""
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This mixin is used to restrict the queryset of a form to the current user.
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The request object is passed from the view."""
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def __init__(self, *args, **kwargs):
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self.request = kwargs.pop("request")
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super().__init__(*args, **kwargs)
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print(self.fields)
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for field in self.fields:
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# Check it's not something like a CharField which has no queryset
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if not hasattr(self.fields[field], "queryset"):
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continue
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model = self.fields[field].queryset.model
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# Check if the model has a user field
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try:
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model._meta.get_field("user")
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# Add the user to the queryset filters
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self.fields[field].queryset = model.objects.filter(
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user=self.request.user
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)
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except FieldDoesNotExist:
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pass
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class NewUserForm(UserCreationForm):
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email = forms.EmailField(required=True)
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class Meta:
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model = User
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fields = (
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"username",
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"email",
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"first_name",
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"last_name",
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"password1",
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"password2",
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)
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def save(self, commit=True):
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user = super(NewUserForm, self).save(commit=False)
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user.email = self.cleaned_data["email"]
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if commit:
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user.save()
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return user
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class CustomUserCreationForm(UserCreationForm):
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class Meta:
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model = User
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fields = "__all__"
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# All string/multiple choice fields
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class HookForm(RestrictedFormMixin, ModelForm):
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class Meta:
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model = Hook
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fields = (
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"name",
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"hook",
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"direction",
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)
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# All string/multiple choice fields
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class AccountForm(RestrictedFormMixin, ModelForm):
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class Meta:
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model = Account
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fields = (
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"name",
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"exchange",
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"api_key",
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"api_secret",
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"sandbox",
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)
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# Restricted mixin for account and hooks
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class StrategyForm(RestrictedFormMixin, ModelForm):
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class Meta:
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model = Strategy
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fields = (
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"name",
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"description",
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"account",
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"trading_times",
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"order_type",
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"time_in_force",
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"hooks",
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"enabled",
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"take_profit_percent",
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"stop_loss_percent",
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"trailing_stop_loss_percent",
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"price_slippage_percent",
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"callback_price_deviation_percent",
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"trade_size_percent",
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)
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hooks = forms.ModelMultipleChoiceField(
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queryset=Hook.objects.all(), widget=forms.CheckboxSelectMultiple
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)
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trading_times = forms.ModelMultipleChoiceField(
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queryset=TradingTime.objects.all(), widget=forms.CheckboxSelectMultiple
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)
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# Restricted mixin for account
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class TradeForm(RestrictedFormMixin, ModelForm):
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class Meta:
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model = Trade
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fields = (
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"account",
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"symbol",
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"type",
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"time_in_force",
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"amount",
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"price",
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"stop_loss",
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"trailing_stop_loss",
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"take_profit",
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"direction",
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)
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class TradingTimeForm(RestrictedFormMixin, ModelForm):
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class Meta:
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model = TradingTime
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fields = (
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"name",
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"description",
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"start_day",
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"start_time",
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"end_day",
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"end_time",
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)
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