adding internal price breaks as in #1606

InvenTree/part/admin.py

@@ -14,7 +14,7 @@ from .models import BomItem
 from .models import PartParameterTemplate, PartParameter
 from .models import PartCategoryParameterTemplate
 from .models import PartTestTemplate
-from .models import PartSellPriceBreak
+from .models import PartSellPriceBreak, PartInternalPriceBreak
 
 from stock.models import StockLocation
 from company.models import SupplierPart
@@ -286,6 +286,14 @@ class PartSellPriceBreakAdmin(admin.ModelAdmin):
     list_display = ('part', 'quantity', 'price',)
 
 
+class PartInternalPriceBreakAdmin(admin.ModelAdmin):
+
+    class Meta:
+        model = PartInternalPriceBreak
+
+    list_display = ('part', 'quantity', 'price',)
+
+
 admin.site.register(Part, PartAdmin)
 admin.site.register(PartCategory, PartCategoryAdmin)
 admin.site.register(PartRelated, PartRelatedAdmin)
@@ -297,3 +305,4 @@ admin.site.register(PartParameter, ParameterAdmin)
 admin.site.register(PartCategoryParameterTemplate, PartCategoryParameterAdmin)
 admin.site.register(PartTestTemplate, PartTestTemplateAdmin)
 admin.site.register(PartSellPriceBreak, PartSellPriceBreakAdmin)
+admin.site.register(PartInternalPriceBreak, PartInternalPriceBreakAdmin)

InvenTree/part/api.py

@@ -25,7 +25,7 @@ from django.urls import reverse
 from .models import Part, PartCategory, BomItem
 from .models import PartParameter, PartParameterTemplate
 from .models import PartAttachment, PartTestTemplate
-from .models import PartSellPriceBreak
+from .models import PartSellPriceBreak, PartInternalPriceBreak
 from .models import PartCategoryParameterTemplate
 
 from common.models import InvenTreeSetting
@@ -194,6 +194,23 @@ class PartSalePriceList(generics.ListCreateAPIView):
     ]
 
 
+class PartInternalPriceList(generics.ListCreateAPIView):
+    """
+    API endpoint for list view of PartInternalPriceBreak model
+    """
+
+    queryset = PartInternalPriceBreak.objects.all()
+    serializer_class = part_serializers.PartInternalPriceSerializer
+
+    filter_backends = [
+        DjangoFilterBackend
+    ]
+
+    filter_fields = [
+        'part',
+    ]
+
+
 class PartAttachmentList(generics.ListCreateAPIView, AttachmentMixin):
     """
     API endpoint for listing (and creating) a PartAttachment (file upload).
@@ -1017,6 +1034,11 @@ part_api_urls = [
         url(r'^.*$', PartSalePriceList.as_view(), name='api-part-sale-price-list'),
     ])),
 
+    # Base URL for part internal pricing
+    url(r'^internal-price/', include([
+        url(r'^.*$', PartInternalPriceList.as_view(), name='api-part-internal-price-list'),
+    ])),
+
     # Base URL for PartParameter API endpoints
     url(r'^parameter/', include([
         url(r'^template/$', PartParameterTemplateList.as_view(), name='api-part-param-template-list'),

InvenTree/part/forms.py

@@ -20,7 +20,7 @@ from .models import BomItem
 from .models import PartParameterTemplate, PartParameter
 from .models import PartCategoryParameterTemplate
 from .models import PartTestTemplate
-from .models import PartSellPriceBreak
+from .models import PartSellPriceBreak, PartInternalPriceBreak
 
 
 class PartModelChoiceField(forms.ModelChoiceField):
@@ -394,3 +394,19 @@ class EditPartSalePriceBreakForm(HelperForm):
             'quantity',
             'price',
         ]
+
+
+class EditPartInternalPriceBreakForm(HelperForm):
+    """
+    Form for creating / editing a internal price for a part
+    """
+
+    quantity = RoundingDecimalFormField(max_digits=10, decimal_places=5, label=_('Quantity'))
+
+    class Meta:
+        model = PartInternalPriceBreak
+        fields = [
+            'part',
+            'quantity',
+            'price',
+        ]

InvenTree/part/migrations/0067_partinternalpricebreak.py

@@ -0,0 +1,30 @@
+# Generated by Django 3.2 on 2021-06-05 14:13
+
+import InvenTree.fields
+import django.core.validators
+from django.db import migrations, models
+import django.db.models.deletion
+import djmoney.models.fields
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('part', '0066_bomitem_allow_variants'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='PartInternalPriceBreak',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('quantity', InvenTree.fields.RoundingDecimalField(decimal_places=5, default=1, help_text='Price break quantity', max_digits=15, validators=[django.core.validators.MinValueValidator(1)], verbose_name='Quantity')),
+                ('price_currency', djmoney.models.fields.CurrencyField(choices=[('AUD', 'Australian Dollar'), ('CAD', 'Canadian Dollar'), ('EUR', 'Euro'), ('NZD', 'New Zealand Dollar'), ('GBP', 'Pound Sterling'), ('USD', 'US Dollar'), ('JPY', 'Yen')], default='USD', editable=False, max_length=3)),
+                ('price', djmoney.models.fields.MoneyField(decimal_places=4, default_currency='USD', help_text='Unit price at specified quantity', max_digits=19, null=True, verbose_name='Price')),
+                ('part', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='internalpricebreaks', to='part.part', verbose_name='Part')),
+            ],
+            options={
+                'unique_together': {('part', 'quantity')},
+            },
+        ),
+    ]

InvenTree/part/models.py

@@ -1983,6 +1983,21 @@ class PartSellPriceBreak(common.models.PriceBreak):
         unique_together = ('part', 'quantity')
 
 
+class PartInternalPriceBreak(common.models.PriceBreak):
+    """
+    Represents a price break for internally selling this part
+    """
+
+    part = models.ForeignKey(
+        Part, on_delete=models.CASCADE,
+        related_name='internalpricebreaks',
+        verbose_name=_('Part')
+    )
+
+    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

@@ -17,7 +17,8 @@ from stock.models import StockItem
 
 from .models import (BomItem, Part, PartAttachment, PartCategory,
                      PartParameter, PartParameterTemplate, PartSellPriceBreak,
-                     PartStar, PartTestTemplate, PartCategoryParameterTemplate)
+                     PartStar, PartTestTemplate, PartCategoryParameterTemplate,
+                     PartInternalPriceBreak)
 
 
 class CategorySerializer(InvenTreeModelSerializer):
@@ -100,6 +101,25 @@ class PartSalePriceSerializer(InvenTreeModelSerializer):
         ]
 
 
+class PartInternalPriceSerializer(InvenTreeModelSerializer):
+    """
+    Serializer for internal prices for Part model.
+    """
+
+    quantity = serializers.FloatField()
+
+    price = serializers.CharField()
+
+    class Meta:
+        model = PartInternalPriceBreak
+        fields = [
+            'pk',
+            'part',
+            'quantity',
+            'price',
+        ]
+
+
 class PartThumbSerializer(serializers.Serializer):
     """
     Serializer for the 'image' field of the Part model.

InvenTree/part/templates/part/internal_prices.html

@@ -0,0 +1,108 @@
+{% extends "part/part_base.html" %}
+{% load static %}
+{% load i18n %}
+
+{% block menubar %}
+{% include 'part/navbar.html' with tab='internal-prices' %}
+{% endblock %}
+
+{% block heading %}
+{% trans "Sell Price Information" %}
+{% endblock %}
+
+{% block details %}
+
+<div id='internal-price-break-toolbar' class='btn-group'>
+    <button class='btn btn-primary' id='new-internal-price-break' type='button'>
+        <span class='fas fa-plus-circle'></span> {% trans "Add Internal Price Break" %}
+    </button>
+</div>
+
+<table class='table table-striped table-condensed' id='internal-price-break-table' data-toolbar='#internal-price-break-toolbar'>
+</table>
+
+{% endblock %}
+
+{% block js_ready %}
+{{ block.super }}
+
+function reloadPriceBreaks() {
+    $("#internal-price-break-table").bootstrapTable("refresh");
+}
+
+$('#new-internal-price-break').click(function() {
+    launchModalForm("{% url 'internal-price-break-create' %}",
+        {
+            success: reloadPriceBreaks,
+            data: {
+                part: {{ part.id }},
+            }
+        }
+    );
+});
+
+$('#internal-price-break-table').inventreeTable({
+    name: 'internalprice',
+    formatNoMatches: function() { return "{% trans 'No internal price break information found' %}"; },
+    queryParams: {
+        part: {{ part.id }},
+    },
+    url: "{% url 'api-part-internal-price-list' %}",
+    onPostBody: function() {
+        var table = $('#internal-price-break-table');
+
+        table.find('.button-internal-price-break-delete').click(function() {
+            var pk = $(this).attr('pk');
+
+            launchModalForm(
+                `/part/internal-price/${pk}/delete/`,
+                {
+                    success: reloadPriceBreaks
+                }
+            );
+        });
+
+        table.find('.button-internal-price-break-edit').click(function() {
+            var pk = $(this).attr('pk');
+
+            launchModalForm(
+                `/part/internal-price/${pk}/edit/`,
+                {
+                    success: reloadPriceBreaks
+                }
+            );
+        });
+    },
+    columns: [
+        {
+            field: 'pk',
+            title: 'ID',
+            visible: false,
+            switchable: false,
+        },
+        {
+            field: 'quantity',
+            title: '{% trans "Quantity" %}',
+            sortable: true,
+        },
+        {
+            field: 'price',
+            title: '{% trans "Price" %}',
+            sortable: true,
+            formatter: function(value, row, index) {
+                var html = value;
+
+                html += `<div class='btn-group float-right' role='group'>`
+
+                html += makeIconButton('fa-edit icon-blue', 'button-internal-price-break-edit', row.pk, '{% trans "Edit internal price break" %}');
+                html += makeIconButton('fa-trash-alt icon-red', 'button-internal-price-break-delete', row.pk, '{% trans "Delete internal price break" %}');
+
+                html += `</div>`;
+
+                return html;
+            }
+        },
+    ]
+})
+
+{% endblock %}

InvenTree/part/templates/part/navbar.html

@@ -95,6 +95,12 @@
     </li>
     {% endif %}
     {% if part.salable and roles.sales_order.view %}
+    <li class='list-group-item {% if tab == "internal-prices" %}active{% endif %}' title='{% trans "Internal Price Information" %}'>
+        <a href='{% url "part-internal-prices" part.id %}'>
+            <span class='menu-tab-icon fas fa-dollar-sign' style='width: 20px;'></span>
+            {% trans "Internal Price" %}
+        </a>
+    </li>
     <li class='list-group-item {% if tab == "sales-prices" %}active{% endif %}' title='{% trans "Sales Price Information" %}'>
         <a href='{% url "part-sale-prices" part.id %}'>
             <span class='menu-tab-icon fas fa-dollar-sign' style='width: 20px;'></span>

InvenTree/part/urls.py

@@ -29,6 +29,12 @@ sale_price_break_urls = [
     url(r'^(?P<pk>\d+)/delete/', views.PartSalePriceBreakDelete.as_view(), name='sale-price-break-delete'),
 ]
 
+internal_price_break_urls = [
+    url(r'^new/', views.PartInternalPriceBreakCreate.as_view(), name='internal-price-break-create'),
+    url(r'^(?P<pk>\d+)/edit/', views.PartInternalPriceBreakEdit.as_view(), name='internal-price-break-edit'),
+    url(r'^(?P<pk>\d+)/delete/', views.PartInternalPriceBreakDelete.as_view(), name='internal-price-break-delete'),
+]
+
 part_parameter_urls = [
     url(r'^template/new/', views.PartParameterTemplateCreate.as_view(), name='part-param-template-create'),
     url(r'^template/(?P<pk>\d+)/edit/', views.PartParameterTemplateEdit.as_view(), name='part-param-template-edit'),
@@ -65,6 +71,7 @@ part_detail_urls = [
     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'^internal-prices/', views.PartDetail.as_view(template_name='part/internal_prices.html'), name='part-internal-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'^related-parts/?', views.PartDetail.as_view(template_name='part/related.html'), name='part-related'),
@@ -145,6 +152,9 @@ part_urls = [
     # Part price breaks
     url(r'^sale-price/', include(sale_price_break_urls)),
 
+    # Part internal price breaks
+    url(r'^internal-price/', include(internal_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

@@ -36,7 +36,7 @@ from .models import PartCategoryParameterTemplate
 from .models import BomItem
 from .models import match_part_names
 from .models import PartTestTemplate
-from .models import PartSellPriceBreak
+from .models import PartSellPriceBreak, PartInternalPriceBreak
 
 from common.models import InvenTreeSetting
 from company.models import SupplierPart
@@ -2794,3 +2794,26 @@ class PartSalePriceBreakDelete(AjaxDeleteView):
     model = PartSellPriceBreak
     ajax_form_title = _("Delete Price Break")
     ajax_template_name = "modal_delete_form.html"
+
+
+class PartInternalPriceBreakCreate(PartSalePriceBreakCreate):
+    """ View for creating a internal price break for a part """
+
+    model = PartInternalPriceBreak
+    form_class = part_forms.EditPartInternalPriceBreakForm
+    ajax_form_title = _('Add Internal Price Break')
+
+
+class PartInternalPriceBreakEdit(PartSalePriceBreakEdit):
+    """ View for editing a internal price break """
+
+    model = PartInternalPriceBreak
+    form_class = part_forms.EditPartInternalPriceBreakForm
+    ajax_form_title = _('Edit Internal Price Break')
+
+
+class PartInternalPriceBreakDelete(PartSalePriceBreakDelete):
+    """ View for deleting a internal price break """
+
+    model = PartInternalPriceBreak
+    ajax_form_title = _("Delete Internal Price Break")