Merge pull request #988 from SchrodingersGat/sell-price

Sell price

InvenTree/part/admin.py

@@ -13,6 +13,7 @@ from .models import PartAttachment, PartStar
 from .models import BomItem
 from .models import PartParameterTemplate, PartParameter
 from .models import PartTestTemplate
+from .models import PartSellPriceBreak
 
 from stock.models import StockLocation
 from company.models import SupplierPart
@@ -257,6 +258,14 @@ class ParameterAdmin(ImportExportModelAdmin):
     list_display = ('part', 'template', 'data')
 
 
+class PartSellPriceBreakAdmin(admin.ModelAdmin):
+
+    class Meta:
+        model = PartSellPriceBreak
+
+    list_display = ('part', 'quantity', 'cost', 'currency')
+
+
 admin.site.register(Part, PartAdmin)
 admin.site.register(PartCategory, PartCategoryAdmin)
 admin.site.register(PartAttachment, PartAttachmentAdmin)
@@ -265,3 +274,4 @@ admin.site.register(BomItem, BomItemAdmin)
 admin.site.register(PartParameterTemplate, ParameterTemplateAdmin)
 admin.site.register(PartParameter, ParameterAdmin)
 admin.site.register(PartTestTemplate, PartTestTemplateAdmin)
+admin.site.register(PartSellPriceBreak, PartSellPriceBreakAdmin)

InvenTree/part/api.py

@@ -20,6 +20,7 @@ from django.urls import reverse
 from .models import Part, PartCategory, BomItem, PartStar
 from .models import PartParameter, PartParameterTemplate
 from .models import PartAttachment, PartTestTemplate
+from .models import PartSellPriceBreak
 
 from . import serializers as part_serializers
 
@@ -107,6 +108,27 @@ class CategoryDetail(generics.RetrieveUpdateDestroyAPIView):
     queryset = PartCategory.objects.all()
 
 
+class PartSalePriceList(generics.ListCreateAPIView):
+    """
+    API endpoint for list view of PartSalePriceBreak model
+    """
+
+    queryset = PartSellPriceBreak.objects.all()
+    serializer_class = part_serializers.PartSalePriceSerializer
+
+    permission_classes = [
+        permissions.IsAuthenticated,
+    ]
+
+    filter_backends = [
+        DjangoFilterBackend
+    ]
+
+    filter_fields = [
+        'part',
+    ]
+
+
 class PartAttachmentList(generics.ListCreateAPIView, AttachmentMixin):
     """
     API endpoint for listing (and creating) a PartAttachment (file upload).
@@ -809,6 +831,11 @@ part_api_urls = [
         url(r'^(?P<pk>\d+)/?', PartStarDetail.as_view(), name='api-part-star-detail'),
         url(r'^$', PartStarList.as_view(), name='api-part-star-list'),
     ])),
+
+    # Base URL for part sale pricing
+    url(r'^sale-price/', include([
+        url(r'^.*$', PartSalePriceList.as_view(), name='api-part-sale-price-list'),
+    ])),
     
     # Base URL for PartParameter API endpoints
     url(r'^parameter/', include([

InvenTree/part/forms.py

@@ -17,6 +17,8 @@ from .models import Part, PartCategory, PartAttachment
 from .models import BomItem
 from .models import PartParameterTemplate, PartParameter
 from .models import PartTestTemplate
+from .models import PartSellPriceBreak
+
 
 from common.models import Currency
 
@@ -253,3 +255,22 @@ class PartPriceForm(forms.Form):
             'quantity',
             'currency',
         ]
+
+
+class EditPartSalePriceBreakForm(HelperForm):
+    """
+    Form for creating / editing a sale price for a part
+    """
+
+    quantity = RoundingDecimalFormField(max_digits=10, decimal_places=5)
+
+    cost = RoundingDecimalFormField(max_digits=10, decimal_places=5)
+
+    class Meta:
+        model = PartSellPriceBreak
+        fields = [
+            'part',
+            'quantity',
+            'cost',
+            'currency',
+        ]

InvenTree/part/migrations/0049_partsellpricebreak.py

@@ -0,0 +1,30 @@
+# Generated by Django 3.0.7 on 2020-09-17 13:22
+
+import InvenTree.fields
+import django.core.validators
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('common', '0007_colortheme'),
+        ('part', '0048_auto_20200902_1404'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='PartSellPriceBreak',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('quantity', InvenTree.fields.RoundingDecimalField(decimal_places=5, default=1, max_digits=15, validators=[django.core.validators.MinValueValidator(1)])),
+                ('cost', InvenTree.fields.RoundingDecimalField(decimal_places=5, max_digits=10, validators=[django.core.validators.MinValueValidator(0)])),
+                ('currency', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, to='common.Currency')),
+                ('part', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='salepricebreaks', to='part.Part')),
+            ],
+            options={
+                'unique_together': {('part', 'quantity')},
+            },
+        ),
+    ]

InvenTree/part/migrations/0050_auto_20200917_2315.py

@@ -0,0 +1,19 @@
+# Generated by Django 3.0.7 on 2020-09-17 23:15
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('part', '0049_partsellpricebreak'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='partsellpricebreak',
+            name='part',
+            field=models.ForeignKey(limit_choices_to={'salable': True}, on_delete=django.db.models.deletion.CASCADE, related_name='salepricebreaks', to='part.Part'),
+        ),
+    ]

InvenTree/part/models.py

@@ -46,6 +46,8 @@ from order import models as OrderModels
 from company.models import SupplierPart
 from stock import models as StockModels
 
+import common.models
+
 
 class PartCategory(InvenTreeTree):
     """ PartCategory provides hierarchical organization of Part objects.
@@ -1226,6 +1228,21 @@ class PartAttachment(InvenTreeAttachment):
                              related_name='attachments')
 
 
+class PartSellPriceBreak(common.models.PriceBreak):
+    """
+    Represents a price break for selling this part
+    """
+
+    part = models.ForeignKey(
+        Part, on_delete=models.CASCADE,
+        related_name='salepricebreaks',
+        limit_choices_to={'salable': True}
+    )
+
+    class Meta:
+        unique_together = ('part', 'quantity')
+
+
 class PartStar(models.Model):
     """ A PartStar object creates a relationship between a User and a Part.
 

InvenTree/part/serializers.py

@@ -12,6 +12,7 @@ from .models import BomItem
 from .models import PartParameter, PartParameterTemplate
 from .models import PartAttachment
 from .models import PartTestTemplate
+from .models import PartSellPriceBreak
 
 from stock.models import StockItem
 
@@ -87,6 +88,32 @@ class PartTestTemplateSerializer(InvenTreeModelSerializer):
         ]
 
 
+class PartSalePriceSerializer(InvenTreeModelSerializer):
+    """
+    Serializer for sale prices for Part model.
+    """
+
+    symbol = serializers.CharField(read_only=True)
+
+    suffix = serializers.CharField(read_only=True)
+
+    quantity = serializers.FloatField()
+
+    cost = serializers.FloatField()
+
+    class Meta:
+        model = PartSellPriceBreak
+        fields = [
+            'pk',
+            'part',
+            'quantity',
+            'cost',
+            'currency',
+            'symbol',
+            'suffix',
+        ]
+
+
 class PartThumbSerializer(serializers.Serializer):
     """
     Serializer for the 'image' field of the Part model.

InvenTree/part/templates/part/sale_prices.html

@@ -0,0 +1,110 @@
+{% extends "part/part_base.html" %}
+{% load static %}
+{% load i18n %}
+
+{% block details %}
+
+{% include 'part/tabs.html' with tab='sales-prices' %}
+
+<h4>{% trans "Sale Price" %}</h4>
+<hr>
+
+<div id='price-break-toolbar' class='btn-group'>
+    <button class='btn btn-primary' id='new-price-break' type='button'>{% trans "Add Price Break" %}</button>
+</div>
+
+<table class='table table-striped table-condensed' id='price-break-table' data-toolbar='#price-break-toolbar'>
+</table>
+
+{% endblock %}
+
+{% block js_ready %}
+{{ block.super }}
+
+function reloadPriceBreaks() {
+    $("#price-break-table").bootstrapTable("refresh");
+}
+
+$('#new-price-break').click(function() {
+    launchModalForm("{% url 'sale-price-break-create' %}",
+        {
+            success: reloadPriceBreaks,
+            data: {
+                part: {{ part.id }},
+            }
+        }
+    );
+});
+
+$('#price-break-table').inventreeTable({
+    name: 'saleprice',
+    formatNoMatches: function() { return "{% trans 'No price break information found' %}"; },
+    queryParams: {
+        part: {{ part.id }},
+    },
+    url: "{% url 'api-part-sale-price-list' %}",
+    onLoadSuccess: function() {
+        var table = $('#price-break-table');
+
+        table.find('.button-price-break-delete').click(function() {
+            var pk = $(this).attr('pk');
+
+            launchModalForm(
+                `/part/sale-price/${pk}/delete/`,
+                {
+                    success: reloadPriceBreaks
+                }
+            );
+        });
+
+        table.find('.button-price-break-edit').click(function() {
+            var pk = $(this).attr('pk');
+
+            launchModalForm(
+                `/part/sale-price/${pk}/edit/`,
+                {
+                    success: reloadPriceBreaks
+                }
+            );
+        });
+    },
+    columns: [
+        {
+            field: 'pk',
+            title: 'ID',
+            visible: false,
+            switchable: false,
+        },
+        {
+            field: 'quantity',
+            title: '{% trans "Quantity" %}',
+            sortable: true,
+        },
+        {
+            field: 'cost',
+            title: '{% trans "Price" %}',
+            sortable: true,
+            formatter: function(value, row, index) {
+                var html = '';
+
+                html += row.symbol || '';
+                html += value;
+
+                if (row.suffix) {
+                    html += ' ' + row.suffix || '';
+                }
+
+                html += `<div class='btn-group float-right' role='group'>`
+
+                html += makeIconButton('fa-edit icon-blue', 'button-price-break-edit', row.pk, '{% trans "Edit price break" %}');
+                html += makeIconButton('fa-trash-alt icon-red', 'button-price-break-delete', row.pk, '{% trans "Delete price break" %}');
+
+                html += `</div>`;
+
+                return html;
+            }
+        },
+    ]
+})
+
+{% endblock %}

InvenTree/part/templates/part/tabs.html

@@ -46,6 +46,9 @@
     </li>
     {% endif %}
     {% if part.salable %}
+    <li {% if tab == 'sales-prices' %}class='active'{% endif %}>
+        <a href="{% url 'part-sale-prices' part.id %}">{% trans "Sale Price" %}</a>
+    </li>
     <li{% ifequal tab 'sales-orders' %} class='active'{% endifequal %}>
         <a href="{% url 'part-sales-orders' part.id %}">{% trans "Sales Orders" %} <span class='badge'>{{ part.sales_orders|length }}</span></a>
     </li>

InvenTree/part/urls.py

@@ -18,6 +18,12 @@ part_attachment_urls = [
     url(r'^(?P<pk>\d+)/delete/?', views.PartAttachmentDelete.as_view(), name='part-attachment-delete'),
 ]
 
+sale_price_break_urls = [
+    url(r'^new/', views.PartSalePriceBreakCreate.as_view(), name='sale-price-break-create'),
+    url(r'^(?P<pk>\d+)/edit/', views.PartSalePriceBreakEdit.as_view(), name='sale-price-break-edit'),
+    url(r'^(?P<pk>\d+)/delete/', views.PartSalePriceBreakDelete.as_view(), name='sale-price-break-delete'),
+]
+
 part_parameter_urls = [
     
     url(r'^template/new/', views.PartParameterTemplateCreate.as_view(), name='part-param-template-create'),
@@ -27,7 +33,6 @@ part_parameter_urls = [
     url(r'^new/', views.PartParameterCreate.as_view(), name='part-param-create'),
     url(r'^(?P<pk>\d+)/edit/', views.PartParameterEdit.as_view(), name='part-param-edit'),
     url(r'^(?P<pk>\d+)/delete/', views.PartParameterDelete.as_view(), name='part-param-delete'),
-
 ]
 
 part_detail_urls = [
@@ -52,6 +57,7 @@ part_detail_urls = [
     url(r'^suppliers/?', views.PartDetail.as_view(template_name='part/supplier.html'), name='part-suppliers'),
     url(r'^orders/?', views.PartDetail.as_view(template_name='part/orders.html'), name='part-orders'),
     url(r'^sales-orders/', views.PartDetail.as_view(template_name='part/sales_orders.html'), name='part-sales-orders'),
+    url(r'^sale-prices/', views.PartDetail.as_view(template_name='part/sale_prices.html'), name='part-sale-prices'),
     url(r'^tests/', views.PartDetail.as_view(template_name='part/part_tests.html'), name='part-test-templates'),
     url(r'^track/?', views.PartDetail.as_view(template_name='part/track.html'), name='part-track'),
     url(r'^attachments/?', views.PartDetail.as_view(template_name='part/attachments.html'), name='part-attachments'),
@@ -108,6 +114,9 @@ part_urls = [
     # Part attachments
     url(r'^attachment/', include(part_attachment_urls)),
 
+    # Part price breaks
+    url(r'^sale-price/', include(sale_price_break_urls)),
+
     # Part test templates
     url(r'^test-template/', include([
         url(r'^new/', views.PartTestTemplateCreate.as_view(), name='part-test-template-create'),

InvenTree/part/views.py

@@ -26,6 +26,7 @@ from .models import PartParameterTemplate, PartParameter
 from .models import BomItem
 from .models import match_part_names
 from .models import PartTestTemplate
+from .models import PartSellPriceBreak
 
 from common.models import Currency, InvenTreeSetting
 from company.models import SupplierPart
@@ -2097,3 +2098,75 @@ class BomItemDelete(AjaxDeleteView):
     ajax_template_name = 'part/bom-delete.html'
     context_object_name = 'item'
     ajax_form_title = _('Confim BOM item deletion')
+
+
+class PartSalePriceBreakCreate(AjaxCreateView):
+    """ View for creating a sale price break for a part """
+
+    model = PartSellPriceBreak
+    form_class = part_forms.EditPartSalePriceBreakForm
+    ajax_form_title = _('Add Price Break')
+    
+    def get_data(self):
+        return {
+            'success': _('Added new price break')
+        }
+
+    def get_part(self):
+        try:
+            part = Part.objects.get(id=self.request.GET.get('part'))
+        except (ValueError, Part.DoesNotExist):
+            part = None
+        
+        if part is None:
+            try:
+                part = Part.objects.get(id=self.request.POST.get('part'))
+            except (ValueError, Part.DoesNotExist):
+                part = None
+
+        return part
+
+    def get_form(self):
+
+        form = super(AjaxCreateView, self).get_form()
+        form.fields['part'].widget = HiddenInput()
+
+        return form
+
+    def get_initial(self):
+
+        initials = super(AjaxCreateView, self).get_initial()
+
+        initials['part'] = self.get_part()
+
+        # Pre-select the default currency
+        try:
+            base = Currency.objects.get(base=True)
+            initials['currency'] = base
+        except Currency.DoesNotExist:
+            pass
+
+        return initials
+
+
+class PartSalePriceBreakEdit(AjaxUpdateView):
+    """ View for editing a sale price break """
+
+    model = PartSellPriceBreak
+    form_class = part_forms.EditPartSalePriceBreakForm
+    ajax_form_title = _('Edit Price Break')
+
+    def get_form(self):
+
+        form = super().get_form()
+        form.fields['part'].widget = HiddenInput()
+
+        return form
+
+    
+class PartSalePriceBreakDelete(AjaxDeleteView):
+    """ View for deleting a sale price break """
+
+    model = PartSellPriceBreak
+    ajax_form_title = _("Delete Price Break")
+    ajax_template_name = "modal_delete_form.html"