Simplify settings view

- Show various currency exchange rates
- Button to "refresh now"

InvenTree/InvenTree/forms.py

@@ -16,8 +16,6 @@ from crispy_forms.bootstrap import PrependedText, AppendedText, PrependedAppende
 from common.models import ColorTheme
 from part.models import PartCategory
 
-from .exchange import InvenTreeManualExchangeBackend
-
 
 class HelperForm(forms.ModelForm):
     """ Provides simple integration of crispy_forms extension. """
@@ -240,35 +238,3 @@ class SettingCategorySelectForm(forms.ModelForm):
                 css_class='row',
             ),
         )
-
-
-class SettingExchangeRatesForm(forms.Form):
-    """ Form for displaying and setting currency exchange rates manually """
-        
-    def __init__(self, *args, **kwargs):
-
-        super().__init__(*args, **kwargs)
-
-        exchange_rate_backend = InvenTreeManualExchangeBackend()
-
-        # Update default currency (in case it has changed)
-        exchange_rate_backend.update_default_currency()
-
-        for currency in exchange_rate_backend.currencies:
-            if currency != exchange_rate_backend.base_currency:
-                # Set field name
-                field_name = currency
-                # Set field input box
-                self.fields[field_name] = forms.CharField(
-                    label=field_name,
-                    required=False,
-                    widget=forms.NumberInput(attrs={
-                        'name': field_name,
-                        'class': 'numberinput',
-                        'style': 'width: 200px;',
-                        'type': 'number',
-                        'min': '0',
-                        'step': 'any',
-                        'value': 0,
-                    })
-                )

InvenTree/InvenTree/urls.py

@@ -39,6 +39,7 @@ from rest_framework.documentation import include_docs_urls
 
 from .views import IndexView, SearchView, DatabaseStatsView
 from .views import SettingsView, EditUserView, SetPasswordView
+from .views import CurrencySettingsView, CurrencyRefreshView
 from .views import AppearanceSelectView, SettingCategorySelectView
 from .views import DynamicJsView
 
@@ -82,15 +83,16 @@ settings_urls = [
     url(r'^appearance/?', AppearanceSelectView.as_view(), name='settings-appearance'),
     url(r'^i18n/?', include('django.conf.urls.i18n')),
 
-    url(r'^global/?', SettingsView.as_view(template_name='InvenTree/settings/global.html'), name='settings-global'),
+    url(r'^global/', SettingsView.as_view(template_name='InvenTree/settings/global.html'), name='settings-global'),
-    url(r'^report/?', SettingsView.as_view(template_name='InvenTree/settings/report.html'), name='settings-report'),
+    url(r'^report/', SettingsView.as_view(template_name='InvenTree/settings/report.html'), name='settings-report'),
-    url(r'^category/?', SettingCategorySelectView.as_view(), name='settings-category'),
+    url(r'^category/', SettingCategorySelectView.as_view(), name='settings-category'),
-    url(r'^part/?', SettingsView.as_view(template_name='InvenTree/settings/part.html'), name='settings-part'),
+    url(r'^part/', SettingsView.as_view(template_name='InvenTree/settings/part.html'), name='settings-part'),
-    url(r'^stock/?', SettingsView.as_view(template_name='InvenTree/settings/stock.html'), name='settings-stock'),
+    url(r'^stock/', SettingsView.as_view(template_name='InvenTree/settings/stock.html'), name='settings-stock'),
-    url(r'^build/?', SettingsView.as_view(template_name='InvenTree/settings/build.html'), name='settings-build'),
+    url(r'^build/', SettingsView.as_view(template_name='InvenTree/settings/build.html'), name='settings-build'),
-    url(r'^purchase-order/?', SettingsView.as_view(template_name='InvenTree/settings/po.html'), name='settings-po'),
+    url(r'^purchase-order/', SettingsView.as_view(template_name='InvenTree/settings/po.html'), name='settings-po'),
-    url(r'^sales-order/?', SettingsView.as_view(template_name='InvenTree/settings/so.html'), name='settings-so'),
+    url(r'^sales-order/', SettingsView.as_view(template_name='InvenTree/settings/so.html'), name='settings-so'),
-    url(r'^currencies/?', SettingsView.as_view(template_name='InvenTree/settings/currencies.html'), name='settings-currencies'),
+    url(r'^currencies/', CurrencySettingsView.as_view(), name='settings-currencies'),
+    url(r'^currencies-refresh/', CurrencyRefreshView.as_view(), name='settings-currencies-refresh'),
 
     url(r'^(?P<pk>\d+)/edit/', SettingEdit.as_view(), name='setting-edit'),
 

InvenTree/InvenTree/views.py

@@ -12,12 +12,15 @@ from django.utils.translation import gettext_lazy as _
 from django.template.loader import render_to_string
 from django.http import JsonResponse, HttpResponseRedirect
 from django.urls import reverse_lazy
+from django.conf import settings
 
 from django.contrib.auth.mixins import PermissionRequiredMixin
 
 from django.views import View
 from django.views.generic import ListView, DetailView, CreateView, FormView, DeleteView, UpdateView
-from django.views.generic.base import TemplateView
+from django.views.generic.base import RedirectView, TemplateView
+
+from djmoney.contrib.exchange.models import ExchangeBackend, Rate
 
 from part.models import Part, PartCategory
 from stock.models import StockLocation, StockItem
@@ -25,11 +28,11 @@ from common.models import InvenTreeSetting, ColorTheme
 from users.models import check_user_role, RuleSet
 from InvenTree.helpers import clean_decimal
 
+import InvenTree.tasks
+
 from .forms import DeleteForm, EditUserForm, SetPasswordForm
 from .forms import ColorThemeSelectForm, SettingCategorySelectForm
-from .forms import SettingExchangeRatesForm
 from .helpers import str2bool
-from .exchange import get_exchange_rate_backend
 
 from rest_framework import views
 
@@ -772,6 +775,50 @@ class SettingsView(TemplateView):
         return ctx
 
 
+
+class CurrencyRefreshView(RedirectView):
+
+    url = reverse_lazy("settings-currencies")
+
+    def post(self, request, *args, **kwargs):
+        """
+        On a POST request we will attempt to refresh the exchange rates
+        """
+
+        print("POST!")
+
+        # Will block for a little bit
+        InvenTree.tasks.update_exchange_rates()
+
+        return self.get(request, *args, **kwargs)
+
+
+class CurrencySettingsView(TemplateView):
+    """
+    View for configuring currency settings
+    """
+
+    template_name = "InvenTree/settings/currencies.html"
+
+    def get_context_data(self, **kwargs):
+
+        ctx = super().get_context_data(**kwargs).copy()
+
+        ctx['settings'] = InvenTreeSetting.objects.all().order_by('key')
+        ctx["base_currency"] = settings.BASE_CURRENCY
+        ctx["currencies"] = settings.CURRENCIES
+
+        ctx["rates"] = Rate.objects.filter(backend="InvenTreeExchange")
+
+        # When were the rates last updated?
+        try:
+            backend = ExchangeBackend.objects.get(name='InvenTreeExchange')
+            ctx["rates_updated"] = backend.last_update
+        except:
+            ctx["rates_updated"] = None
+
+        return ctx
+
 class AppearanceSelectView(FormView):
     """ View for selecting a color theme """
 
@@ -911,89 +958,3 @@ class DatabaseStatsView(AjaxView):
         """
 
         return ctx
-
-
-class CurrencySettingsView(FormView):
-
-    form_class = SettingExchangeRatesForm
-    template_name = 'InvenTree/settings/currencies.html'
-    success_url = reverse_lazy('settings-currencies')
-
-    exchange_rate_backend = None
-
-    def get_exchange_rate_backend(self):
-
-        if not self.exchange_rate_backend:
-            self.exchange_rate_backend = get_exchange_rate_backend()
-        
-        return self.exchange_rate_backend
-
-    def get_context_data(self, **kwargs):
-
-        context = super().get_context_data(**kwargs)
-
-        # Set default API result
-        if 'api_rates_success' not in context:
-            context['default_currency'] = True
-        else:
-            # Update form
-            context['form'] = self.get_form()
-
-        # Get exchange rate backend
-        exchange_rate_backend = self.get_exchange_rate_backend()
-
-        context['default_currency'] = exchange_rate_backend.base_currency
-
-        context['custom_rates'] = exchange_rate_backend.custom_rates
-
-        context['exchange_backend'] = exchange_rate_backend.name
-
-        return context
-
-    def get_form(self):
-
-        form = super().get_form()
-
-        # Get exchange rate backend
-        exchange_rate_backend = self.get_exchange_rate_backend()
-
-        # Get stored exchange rates
-        stored_rates = exchange_rate_backend.get_stored_rates()
-            
-        for field in form.fields:
-            if not exchange_rate_backend.custom_rates:
-                # Disable all the fields
-                form.fields[field].disabled = True
-            form.fields[field].initial = clean_decimal(stored_rates.get(field, 0))
-
-        return form
-
-    def post(self, request, *args, **kwargs):
-
-        form = self.get_form()
-
-        # Get exchange rate backend
-        exchange_rate_backend = self.get_exchange_rate_backend()
-
-        if not exchange_rate_backend.custom_rates:
-            # Refresh rate from Fixer.IO API
-            exchange_rate_backend.update_rates(base_currency=exchange_rate_backend.base_currency)
-            # Check if rates have been updated
-            if not exchange_rate_backend.get_stored_rates():
-                # Update context
-                context = {'api_rates_success': False}
-                # Return view with updated context
-                return self.render_to_response(self.get_context_data(form=form, **context))
-        else:
-            # Update rates from form
-            manual_rates = {}
-
-            if form.is_valid():
-                for field, value in form.cleaned_data.items():
-                    manual_rates[field] = clean_decimal(value)
-
-                exchange_rate_backend.update_rates(base_currency=exchange_rate_backend.base_currency, **{'rates': manual_rates})
-            else:
-                return self.form_invalid(form)
-
-        return self.form_valid(form)

InvenTree/templates/InvenTree/settings/currencies.html

@@ -13,40 +13,43 @@
 {% block settings %}
 
 <table class='table table-striped table-condensed'>
-    {% include "InvenTree/settings/header.html" %}
     <tbody>
-        {% include "InvenTree/settings/setting.html" with key="INVENTREE_DEFAULT_CURRENCY" icon="fa-dollar-sign" %}
+        <tr>
-        {% include "InvenTree/settings/setting.html" with key="CUSTOM_EXCHANGE_RATES" icon="fa-edit" %}
+            <th>{% trans "Base Currency" %}</th>
-    </tbody>
+            <th>{{ base_currency }}</th>
-</table>
+        </tr>
-
+        <tr>
-<div class='row'>
+            <th colspan='2'>{% trans "Exchange Rates" %}</th>
-    <div class='col-sm-6'>
+        </tr>
-        <h4>{% blocktrans with cur=default_currency %}Exchange Rates - Convert to {{cur}}{% endblocktrans %}</h4>
+        {% for rate in rates %}
-    </div>
+        <tr>
-</div>
+            <td>{{ rate.currency }}</td>
-
+            <td>{{ rate.value }}</td>
-<form action="{% url 'settings-currencies' %}" method="post">
+        </tr>
-    <div id='exchange_rate_form'>
+        {% endfor %}
-    {% csrf_token %}
+        <tr>
-    {% load crispy_forms_tags %}
+            <th>
-    {% crispy form %}
+                {% trans "Last Update" %}
-    {% if custom_rates is False %}
+            </th>
-        <button type="submit" class='btn btn-primary'>{% trans "Refresh Exchange Rates" %}</button>
+            <td>
+                {% if rates_updated %}
+                {{ rates_updated }}
                 {% else %}
-        <button type="submit" class='btn btn-primary'>{% trans "Update Exchange Rates" %}</button>
+                <i>{% trans "Never" %}</i>
                 {% endif %}
+                <form action='{% url "settings-currencies-refresh" %}' method='post'>
+                    <div id='refresh-rates-form'>
+                        {% csrf_token %}
+                        <button type='submit' id='update-rates' class='btn btn-default float-right'>{% trans "Update Now" %}</button>
                     </div>
                 </form>
+            </td>
+        </tr>
+    </tbody>
+</table>
 
 {% endblock %}
 
 {% block js_ready %}
 {{ block.super }}
-
-{% if api_rates_success is False %}
-    var alert_msg = {% blocktrans %}"Failed to refresh exchange rates" {% endblocktrans %};
-    showAlertOrCache("alert-danger", alert_msg, null, 5000);
-{% endif %}
-
 {% endblock %}