Merge remote-tracking branch 'inventree/master'

InvenTree/InvenTree/version.py

@@ -4,7 +4,7 @@ Provides information on the current InvenTree version
 
 import subprocess
 
-INVENTREE_SW_VERSION = "0.0.1"
+INVENTREE_SW_VERSION = "0.0.2"
 
 
 def inventreeVersion():
@@ -14,6 +14,8 @@ def inventreeVersion():
 
 def inventreeCommitHash():
     """ Returns the git commit hash for the running codebase """
+
+    # TODO - This doesn't seem to work when running under gunicorn. Why is this?!
     commit = str(subprocess.check_output('git rev-parse --short HEAD'.split()), 'utf-8').strip()
 
     return commit

InvenTree/InvenTree/views.py

@@ -170,7 +170,7 @@ class AjaxView(AjaxMixin, View):
     """
 
     def post(self, request, *args, **kwargs):
-        return JsonResponse('', safe=False)
+        return self.renderJsonResponse(request)
 
     def get(self, request, *args, **kwargs):
 

InvenTree/build/templates/build/allocate.html

@@ -62,12 +62,23 @@ InvenTree | Allocate Parts
 
     {% else %}
 
-    $("#build-list").bootstrapTable({});
+    $("#build-list").bootstrapTable({
+        search: true,
+        sortable: true,
+    });
 
     $("#btn-allocate").click(function() {
         location.href = "{% url 'build-allocate' build.id %}?edit=1";
     });
 
+    $("#btn-order-parts").click(function() {
+        launchModalForm("/order/purchase-order/order-parts/", {
+            data: {
+                build: {{ build.id }},
+            },
+        });
+    });
+
     {% endif %}
 
 {% endblock %}

InvenTree/build/templates/build/allocate_view.html

@@ -3,17 +3,19 @@
 <div id='#build-item-toolbar'>
     <div class='btn-group'>
         <button class='btn btn-primary' type='button' id='btn-allocate' title='Allocate Stock'>Allocate</button>
+        <button class='btn btn-primary' type='button' id='btn-order-parts' title='Order Parts'>Order Parts</button>
     </div>
 </div>
 
 <table class='table table-striped table-condensed' id='build-list' data-sorting='true' data-toolbar='#build-item-toolbar'>
 <thead>
 <tr>
-    <th>Part</th>
+    <th data-sortable='true'>Part</th>
     <th>Description</th>
-    <th>Available</th>
+    <th data-sortable='true'>Available</th>
-    <th>Required</th>
+    <th data-sortable='true'>Required</th>
-    <th>Allocated</th>
+    <th data-sortable='true'>Allocated</th>
+    <th data-sortable='true'>On Order</th>
 </tr>
 </thead>
 <tbody>
@@ -27,6 +29,7 @@
         <td>{{ item.part.total_stock }}</td>
         <td>{{ item.quantity }}</td>
         <td>{{ item.allocated }}</td>
+        <td>{{ item.part.on_order }}</td>
     </tr>
     {% endfor %}
 </tbody>

InvenTree/build/views.py

@@ -275,6 +275,7 @@ class BuildDetail(DetailView):
         build = self.get_object()
 
         ctx['bom_price'] = build.part.get_price_info(build.quantity, buy=False)
+        ctx['BuildStatus'] = BuildStatus
 
         return ctx
 
@@ -296,6 +297,7 @@ class BuildAllocate(DetailView):
 
         context['part'] = part
         context['bom_items'] = bom_items
+        context['BuildStatus'] = BuildStatus
 
         context['bom_price'] = build.part.get_price_info(build.quantity, buy=False)
 

InvenTree/company/templates/company/detail_part.html

@@ -12,6 +12,7 @@
         <button class="btn btn-primary dropdown-toggle" type="button" data-toggle="dropdown">Options
         <span class="caret"></span></button>
         <ul class="dropdown-menu">
+            <li><a href='#' id='multi-part-order' title='Order parts'>Order Parts</a></li>
         </ul>
     </div>
 </div>
@@ -101,4 +102,20 @@
         url: "{% url 'api-part-supplier-list' %}"
     });
 
+    $("#multi-part-order").click(function() {
+        var selections = $("#part-table").bootstrapTable("getSelections");
+
+        var parts = [];
+
+        selections.forEach(function(item) {
+            parts.push(item.part);
+        });
+
+        launchModalForm("/order/purchase-order/order-parts/", {
+            data: {
+                parts: parts,
+            },
+        });
+    });
+
 {% endblock %}

InvenTree/order/forms.py

@@ -47,5 +47,5 @@ class EditPurchaseOrderLineItemForm(HelperForm):
             'part',
             'quantity',
             'reference',
-            'received'
+            'notes',
         ]

InvenTree/order/migrations/0010_purchaseorderlineitem_notes.py

@@ -0,0 +1,18 @@
+# Generated by Django 2.2.2 on 2019-06-13 11:54
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('order', '0009_auto_20190606_2133'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='purchaseorderlineitem',
+            name='notes',
+            field=models.CharField(blank=True, help_text='Line item notes', max_length=500),
+        ),
+    ]

InvenTree/order/models.py

@@ -6,10 +6,12 @@ Order model definitions
 
 from django.db import models
 from django.core.validators import MinValueValidator
+from django.core.exceptions import ValidationError
 from django.contrib.auth.models import User
 from django.urls import reverse
 from django.utils.translation import ugettext as _
 
+import tablib
 from datetime import datetime
 
 from company.models import Company, SupplierPart
@@ -98,9 +100,101 @@ class PurchaseOrder(Order):
         help_text=_('Company')
     )
 
+    def export_to_file(self, **kwargs):
+        """ Export order information to external file """
+
+        file_format = kwargs.get('format', 'csv').lower()
+
+        data = tablib.Dataset(headers=[
+            'Line',
+            'Part',
+            'Description',
+            'Manufacturer',
+            'MPN',
+            'Order Code',
+            'Quantity',
+            'Received',
+            'Reference',
+            'Notes',
+        ])
+
+        idx = 0
+
+        for item in self.lines.all():
+
+            line = []
+
+            line.append(idx)
+
+            if item.part:
+                line.append(item.part.part.name)
+                line.append(item.part.part.description)
+
+                line.append(item.part.manufacturer)
+                line.append(item.part.MPN)
+                line.append(item.part.SKU)
+
+            else:
+                line += [[] * 5]
+            
+            line.append(item.quantity)
+            line.append(item.received)
+            line.append(item.reference)
+            line.append(item.notes)
+
+            idx += 1
+
+            data.append(line)
+
+        return data.export(file_format)
+
     def get_absolute_url(self):
         return reverse('purchase-order-detail', kwargs={'pk': self.id})
 
+    def add_line_item(self, supplier_part, quantity, group=True, reference=''):
+        """ Add a new line item to this purchase order.
+        This function will check that:
+
+        * The supplier part matches the supplier specified for this purchase order
+        * The quantity is greater than zero
+
+        Args:
+            supplier_part - The supplier_part to add
+            quantity - The number of items to add
+            group - If True, this new quantity will be added to an existing line item for the same supplier_part (if it exists)
+        """
+
+        try:
+            quantity = int(quantity)
+            if quantity <= 0:
+                raise ValidationError({
+                    'quantity': _("Quantity must be greater than zero")})
+        except ValueError:
+            raise ValidationError({'quantity': _("Invalid quantity provided")})
+
+        if not supplier_part.supplier == self.supplier:
+            raise ValidationError({'supplier': _("Part supplier must match PO supplier")})
+
+        if group:
+            # Check if there is already a matching line item
+            matches = PurchaseOrderLineItem.objects.filter(part=supplier_part)
+
+            if matches.count() > 0:
+                line = matches.first()
+
+                line.quantity += quantity
+                line.save()
+
+                return
+
+        line = PurchaseOrderLineItem(
+            order=self,
+            part=supplier_part,
+            quantity=quantity,
+            reference=reference)
+
+        line.save()
+
 
 class OrderLineItem(models.Model):
     """ Abstract model for an order line item
@@ -118,6 +212,8 @@ class OrderLineItem(models.Model):
 
     reference = models.CharField(max_length=100, blank=True, help_text=_('Line item reference'))
     
+    notes = models.CharField(max_length=500, blank=True, help_text=_('Line item notes'))
+
 
 class PurchaseOrderLineItem(OrderLineItem):
     """ Model for a purchase order line item.
@@ -132,6 +228,13 @@ class PurchaseOrderLineItem(OrderLineItem):
             ('order', 'part')
         )
 
+    def __str__(self):
+        return "{n} x {part} from {supplier} (for {po})".format(
+            n=self.quantity,
+            part=self.part.SKU if self.part else 'unknown part',
+            supplier=self.order.supplier.name,
+            po=self.order)
+
     order = models.ForeignKey(
         PurchaseOrder, on_delete=models.CASCADE,
         related_name='lines',

InvenTree/order/templates/order/order_wizard/select_parts.html

@@ -0,0 +1,74 @@
+{% extends "modal_form.html" %}
+
+{% block form %}
+
+<h4>
+    Step 1 of 2 - Select Parts
+</h4>
+
+{% if parts|length > 0 %}
+<div class='alert alert-info alert-block' role='alert'>
+    Select suppliers for {{ parts|length }} parts.
+</div>
+{% else %}
+<div class='alert alert-warning alert-block' role='alert'>
+    No purchaseable parts selected.
+</div>
+{% endif %}
+
+<form method="post" action='' class='js-modal-form' enctype="multipart/form-data">
+    {% csrf_token %}
+    {% load crispy_forms_tags %}
+
+    <input type='hidden' name='form_step' value='select_parts'/>
+
+    <table class='table table-condensed table-striped' id='order-wizard-part-table'>
+        <tr>
+            <th>Part</th>
+            <th colspan='2'>Select Supplier</th>
+            <th>Quantity</th>
+            <th></th>
+        </tr>
+        {% for part in parts %}
+        <tr id='part_row_{{ part.id }}'>
+            <td>
+                {% include "hover_image.html" with image=part.image hover=False %}
+                {{ part.full_name }} <small><i>{{ part.description }}</i></small>
+            </td>
+            <td>
+                <button class='btn btn-default btn-create' id='new_supplier_part_{{ part.id }}' title='Create new supplier part for {{ part }}' type='button'>
+                    <span part-id='{{ part.id }}' onClick='newSupplierPartFromOrderWizard()' class='glyphicon glyphicon-small glyphicon-plus'></span>
+                </button>
+            </td>
+            <td>
+                <div class='control-group'>
+                    <div class='controls'>
+                        <select class='select' id='id_supplier_part_{{ part.id }}' name="part-supplier-{{ part.id }}">
+                            <option value=''>---------</option>
+                            {% for supplier in part.supplier_parts.all %}
+                            <option value="{{ supplier.id }}"{% if part.order_supplier == supplier.id %} selected="selected"{% endif %}>{{ supplier }}</option>
+                            {% endfor %}
+                        </select>
+                    </div>
+                    {% if not part.order_supplier %}
+                    <span class='help-inline'>Select a supplier for <i>{{ part.name }}</i></span>
+                    {% endif %}
+                </div>
+            </td>
+            <td>
+                <div class='control-group'>
+                    <div class='controls'>
+                        <input class='numberinput' type='number' min='0' value='{{ part.order_quantity }}' name='part-quantity-{{ part.id }}'/>
+                    </div>
+                </div>
+            </td>
+            <td>
+                <button class='btn btn-default btn-remove' id='del_item_{{ part.id }}' title='Remove part' type='button'>
+                    <span row='part_row_{{ part.id }}' onclick='removeOrderRowFromOrderWizard()' class='glyphicon glyphicon-small glyphicon-remove'></span>
+                </button>
+            </td>
+        </tr>
+        {% endfor %}
+    </table>
+</form>
+{% endblock %}

InvenTree/order/templates/order/order_wizard/select_pos.html

@@ -0,0 +1,73 @@
+{% extends "modal_form.html" %}
+
+{% block form %}
+
+<h4>
+    Step 2 of 2 - Select Purchase Orders
+</h4>
+
+<div class='alert alert-info alert-block' role='alert'>
+    Select existing purchase orders, or create new orders.
+</div>
+
+<form method='post' action='' class='js-modal-form' enctype='multipart/form-data'>
+    {% csrf_token %}
+    {% load crispy_forms_tags %}
+
+    <input type='hidden' name='form_step' value='select_purchase_orders'/>
+
+    {% for supplier in suppliers %}
+        {% for item in supplier.order_items %}
+        <input type='hidden' name='part-supplier-{{ item.id }}' value='{{ item.order_supplier }}'/>
+        <input type='hidden' name='part-quantity-{{ item.id }}' value='{{ item.order_quantity }}'/>
+        {% endfor %}
+    {% endfor %}
+
+    <table class='table table-condensed table-striped' id='order-wizard-po-table'>
+        <tr>
+            <th>Supplier</th>
+            <th>Items</th>
+            <th colspan='2'>Select Purchase Order</th>
+        </tr>
+        {% for supplier in suppliers %}
+        <tr id='suppier_row_{{ supplier.id }}'>
+            <td>
+                {% include 'hover_image.html' with image=supplier.image hover=False %}
+                {{ supplier.name }}
+            </td>
+            <td>{{ supplier.order_items|length }}</td>
+            <td>
+                <button 
+                    class='btn btn-default btn-create'
+                    id='new_po_{{ supplier.id }}'
+                    title='Create new purchase order for {{ supplier.name }}'
+                    type='button'>
+                    <span supplier-id='{{ supplier.id }}' onclick='newPurchaseOrderFromOrderWizard()' class='glyphicon glyphicon-small glyphicon-plus'></span>
+                </button>
+            </td>
+            <td>
+                <div class='control-group'>
+                    <div class='controls'>
+                        <select
+                            class='select'
+                            id='id-purchase-order-{{ supplier.id }}'
+                            name='purchase-order-{{ supplier.id }}'>
+                            <option value=''>---------</option>
+                            {% for order in supplier.outstanding_purchase_orders %}
+                            <option value='{{ order.id }}'{% if supplier.selected_purchase_order == order.id %} selected='selected'{% endif %}>
+                                {{ order }}
+                            </option>
+                            {% endfor %}
+                        </select>
+                    </div>
+                    {% if not supplier.selected_purchase_order %}
+                    <span class='help-inline'>Select a purchase order for {{ supplier.name }}</span>
+                    {% endif %}
+                </div>
+            </td>
+        </tr>
+        {% endfor %}
+
+    </table>
+</form>
+{% endblock %}

InvenTree/order/templates/order/po_lineitem_delete.html

@@ -0,0 +1,5 @@
+{% extends "modal_delete_form.html" %}
+
+{% block pre_form_content %}
+Are you sure you wish to delete this line item?
+{% endblock %}

InvenTree/order/templates/order/po_table.html

@@ -4,6 +4,7 @@
         <th data-field='reference'>Order Reference</th>
         <th data-field='description'>Description</th>
         <th data-field='status'>Status</th>
+        <th data-field='items'>Items</th>
     </tr>
     {% for order in orders %}
     <tr>
@@ -11,6 +12,7 @@
         <td><a href="{% url 'purchase-order-detail' order.id %}">{{ order }}</a></td>
         <td>{{ order.description }}</td>
         <td>{% include "order/order_status.html" %}</td>
+        <td>{{ order.lines.count }}</td>
     </tr>
     {% endfor %}
 </table>

InvenTree/order/templates/order/purchase_order_detail.html

@@ -64,6 +64,7 @@ InvenTree | {{ order }}
     {% if order.status == OrderStatus.PENDING and order.lines.count > 0 %}
     <button type='button' class='btn btn-primary' id='place-order'>Place Order</button>
     {% endif %}
+    <button type='button' class='btn btn-primary' id='export-order' title='Export order to file'>Export</button>
 </div>
 
 <h4>Order Items</h4>
@@ -79,20 +80,48 @@ InvenTree | {{ order }}
         <th data-field='sku'>Order Code</th>
         <th data-field='reference'>Reference</th>
         <th data-field='quantity'>Quantity</th>
+        {% if not order.status == OrderStatus.PENDING %}
         <th data-field='received'>Received</th>
+        {% endif %}
+        <th data-field='notes'>Note</th>
+        {% if order.status == OrderStatus.PENDING %}
+        <th data-field='buttons'></th>
+        {% endif %}
     </tr>
     {% for line in order.lines.all %}
     <tr>
-        <td>{{ forloop.counter }}</td>
+        <td>
+            {{ forloop.counter }}
+        </td>
         {% if line.part %}
-        <td><a href="{% url 'part-detail' line.part.part.id %}">{{ line.part.part.full_name }}</a></td>
+        <td>
+            {% include "hover_image.html" with image=line.part.part.image hover=True %}
+            <a href="{% url 'part-detail' line.part.part.id %}">{{ line.part.part.full_name }}</a>
+        </td>
         <td><a href="{% url 'supplier-part-detail' line.part.id %}">{{ line.part.SKU }}</a></td>
         {% else %}
         <td colspan='2'><strong>Warning: Part has been deleted.</strong></td>
         {% endif %}
         <td>{{ line.reference }}</td>
         <td>{{ line.quantity }}</td>
+        {% if not order.status == OrderStatus.PENDING %}
         <td>{{ line.received }}</td>
+        {% endif %}
+        <td>
+            {{ line.notes }}
+        </td>
+        {% if order.status == OrderStatus.PENDING %}
+        <td>
+            <div class='btn-group'>
+                <button class='btn btn-default btn-edit' id='edit-line-item-{{ line.id }} title='Edit line item' onclick='editPurchaseOrderLineItem()'>
+                    <span url="{% url 'po-line-item-edit' line.id %}" line='{{ line.id }}' class='glyphicon glyphicon-small glyphicon-edit'></span>
+                </button>
+                <button class='btn btn-default btn-remove' id='remove-line-item-{{ line.id }' title='Remove line item' type='button' onclick='removePurchaseOrderLineItem()'>
+                    <span url="{% url 'po-line-item-delete' line.id %}" line='{{ line.id }}' class='glyphicon glyphicon-small glyphicon-remove'></span>
+                </button>
+            </div>
+        </td>
+        {% endif %}
     </tr>
     {% endfor %}
 </table>
@@ -124,6 +153,10 @@ $("#edit-order").click(function() {
     );
 });
 
+$("#export-order").click(function() {
+    location.href = "{% url 'purchase-order-export' order.id %}";
+});
+
 {% if order.status == OrderStatus.PENDING %}
 $('#new-po-line').click(function() {
     launchModalForm("{% url 'po-line-item-create' %}",
@@ -151,4 +184,5 @@ $('#new-po-line').click(function() {
 $("#po-lines-table").bootstrapTable({
 });
 
+
 {% endblock %}

InvenTree/order/urls.py

@@ -14,18 +14,30 @@ purchase_order_detail_urls = [
     url(r'^edit/?', views.PurchaseOrderEdit.as_view(), name='purchase-order-edit'),
     url(r'^issue/?', views.PurchaseOrderIssue.as_view(), name='purchase-order-issue'),
 
+    url(r'^export/?', views.PurchaseOrderExport.as_view(), name='purchase-order-export'),
+
     url(r'^.*$', views.PurchaseOrderDetail.as_view(), name='purchase-order-detail'),
 ]
 
+po_line_item_detail_urls = [
+    
+    url(r'^edit/', views.POLineItemEdit.as_view(), name='po-line-item-edit'),
+    url(r'^delete/', views.POLineItemDelete.as_view(), name='po-line-item-delete'),
+]
+
 po_line_urls = [
 
     url(r'^new/', views.POLineItemCreate.as_view(), name='po-line-item-create'),
+
+    url(r'^(?P<pk>\d+)/', include(po_line_item_detail_urls)),
 ]
 
 purchase_order_urls = [
 
     url(r'^new/', views.PurchaseOrderCreate.as_view(), name='purchase-order-create'),
 
+    url(r'^order-parts/', views.OrderParts.as_view(), name='order-parts'),
+
     # Display detail view for a single purchase order
     url(r'^(?P<pk>\d+)/', include(purchase_order_detail_urls)),
 

InvenTree/order/views.py

@@ -5,20 +5,28 @@ Django views for interacting with Order app
 # -*- coding: utf-8 -*-
 from __future__ import unicode_literals
 
+from django.shortcuts import get_object_or_404
 from django.utils.translation import ugettext as _
 from django.views.generic import DetailView, ListView
 from django.forms import HiddenInput
 
+import logging
+
 from .models import PurchaseOrder, PurchaseOrderLineItem
+from build.models import Build
 from company.models import Company, SupplierPart
+from stock.models import StockItem
+from part.models import Part
 
 from . import forms as order_forms
 
-from InvenTree.views import AjaxCreateView, AjaxUpdateView
+from InvenTree.views import AjaxView, AjaxCreateView, AjaxUpdateView, AjaxDeleteView
-from InvenTree.helpers import str2bool
+from InvenTree.helpers import DownloadFile, str2bool
 
 from InvenTree.status_codes import OrderStatus
 
+logger = logging.getLogger(__name__)
+
 
 class PurchaseOrderIndex(ListView):
     """ List view for all purchase orders """
@@ -135,6 +143,331 @@ class PurchaseOrderIssue(AjaxUpdateView):
         return self.renderJsonResponse(request, form, data)
 
 
+class PurchaseOrderExport(AjaxView):
+    """ File download for a purchase order
+
+    - File format can be optionally passed as a query param e.g. ?format=CSV
+    - Default file format is CSV
+    """
+
+    model = PurchaseOrder
+
+    def get(self, request, *args, **kwargs):
+
+        order = get_object_or_404(PurchaseOrder, pk=self.kwargs['pk'])
+
+        export_format = request.GET.get('format', 'csv')
+
+        filename = str(order) + '.' + export_format
+
+        filedata = order.export_to_file(format=export_format)
+
+        return DownloadFile(filedata, filename)
+
+
+class OrderParts(AjaxView):
+    """ View for adding various SupplierPart items to a Purchase Order.
+
+    SupplierParts can be selected from a variety of 'sources':
+
+    - ?supplier_parts[]= -> Direct list of SupplierPart objects
+    - ?parts[]= -> List of base Part objects (user must then select supplier parts)
+    - ?stock[]= -> List of StockItem objects (user must select supplier parts)
+    - ?build= -> A Build object (user must select parts, then supplier parts)
+
+    """
+
+    ajax_form_title = "Order Parts"
+    ajax_template_name = 'order/order_wizard/select_parts.html'
+
+    # List of Parts we wish to order
+    parts = []
+    suppliers = []
+
+    def get_context_data(self):
+
+        ctx = {}
+
+        ctx['parts'] = sorted(self.parts, key=lambda part: int(part.order_quantity), reverse=True)
+        ctx['suppliers'] = self.suppliers
+
+        return ctx
+
+    def get_suppliers(self):
+        """ Calculates a list of suppliers which the user will need to create POs for.
+        This is calculated AFTER the user finishes selecting the parts to order.
+        Crucially, get_parts() must be called before get_suppliers()
+        """
+
+        suppliers = {}
+
+        for supplier in self.suppliers:
+            supplier.order_items = []
+            suppliers[supplier.name] = supplier
+
+        for part in self.parts:
+            supplier_part_id = part.order_supplier
+
+            try:
+                supplier = SupplierPart.objects.get(pk=supplier_part_id).supplier
+            except SupplierPart.DoesNotExist:
+                continue
+
+            if supplier.name not in suppliers:
+                supplier.order_items = []
+                supplier.selected_purchase_order = None
+                suppliers[supplier.name] = supplier
+                
+            suppliers[supplier.name].order_items.append(part)
+
+        self.suppliers = [suppliers[key] for key in suppliers.keys()]
+
+    def get_parts(self):
+        """ Determine which parts the user wishes to order.
+        This is performed on the initial GET request.
+        """
+
+        self.parts = []
+
+        part_ids = set()
+
+        # User has passed a list of stock items
+        if 'stock[]' in self.request.GET:
+
+            stock_id_list = self.request.GET.getlist('stock[]')
+            
+            """ Get a list of all the parts associated with the stock items.
+            - Base part must be purchaseable.
+            - Return a set of corresponding Part IDs
+            """
+            stock_items = StockItem.objects.filter(
+                part__purchaseable=True,
+                id__in=stock_id_list)
+
+            for item in stock_items:
+                part_ids.add(item.part.id)
+
+        # User has passed a single Part ID
+        elif 'part' in self.request.GET:
+            try:
+                part_id = self.request.GET.get('part')
+                part = Part.objects.get(id=part_id)
+
+                part_ids.add(part.id)
+
+            except Part.DoesNotExist:
+                pass
+
+        # User has passed a list of part ID values
+        elif 'parts[]' in self.request.GET:
+            part_id_list = self.request.GET.getlist('parts[]')
+
+            parts = Part.objects.filter(
+                purchaseable=True,
+                id__in=part_id_list)
+
+            for part in parts:
+                part_ids.add(part.id)
+
+        # User has provided a Build ID
+        elif 'build' in self.request.GET:
+            build_id = self.request.GET.get('build')
+            try:
+                build = Build.objects.get(id=build_id)
+
+                parts = build.part.required_parts()
+
+                for part in parts:
+                    # If ordering from a Build page, ignore parts that we have enough of
+                    if part.quantity_to_order <= 0:
+                        continue
+                    part_ids.add(part.id)
+            except Build.DoesNotExist:
+                pass
+
+        # Create the list of parts
+        for id in part_ids:
+            try:
+                part = Part.objects.get(id=id)
+                # Pre-fill the 'order quantity' value
+                part.order_quantity = part.quantity_to_order
+
+                default_supplier = part.get_default_supplier()
+
+                if default_supplier:
+                    part.order_supplier = default_supplier.id
+                else:
+                    part.order_supplier = None
+            except Part.DoesNotExist:
+                continue
+
+            self.parts.append(part)
+
+    def get(self, request, *args, **kwargs):
+
+        self.request = request
+
+        self.get_parts()
+
+        return self.renderJsonResponse(request)
+
+    def post(self, request, *args, **kwargs):
+        """ Handle the POST action for part selection.
+
+        - Validates each part / quantity / supplier / etc
+
+        Part selection form contains the following fields for each part:
+
+        - supplier-<pk> : The ID of the selected supplier
+        - quantity-<pk> : The quantity to add to the order
+        """
+
+        self.request = request
+
+        self.parts = []
+        self.suppliers = []
+
+        # Any errors for the part selection form?
+        part_errors = False
+        supplier_errors = False
+
+        # Extract part information from the form
+        for item in self.request.POST:
+            
+            if item.startswith('part-supplier-'):
+                
+                pk = item.replace('part-supplier-', '')
+                
+                # Check that the part actually exists
+                try:
+                    part = Part.objects.get(id=pk)
+                except (Part.DoesNotExist, ValueError):
+                    continue
+                
+                supplier_part_id = self.request.POST[item]
+                
+                quantity = self.request.POST.get('part-quantity-' + str(pk), 0)
+
+                # Ensure a valid supplier has been passed
+                try:
+                    supplier_part = SupplierPart.objects.get(id=supplier_part_id)
+                except (SupplierPart.DoesNotExist, ValueError):
+                    supplier_part = None
+
+                # Ensure a valid quantity is passed
+                try:
+                    quantity = int(quantity)
+
+                    # Eliminate lines where the quantity is zero
+                    if quantity == 0:
+                        continue
+                except ValueError:
+                    quantity = part.quantity_to_order
+
+                part.order_supplier = supplier_part.id if supplier_part else None
+                part.order_quantity = quantity
+
+                self.parts.append(part)
+
+                if supplier_part is None:
+                    part_errors = True
+
+                elif quantity < 0:
+                    part_errors = True
+
+            elif item.startswith('purchase-order-'):
+                # Which purchase order is selected for a given supplier?
+                pk = item.replace('purchase-order-', '')
+
+                # Check that the Supplier actually exists
+                try:
+                    supplier = Company.objects.get(id=pk)
+                except Company.DoesNotExist:
+                    # Skip this item
+                    continue
+
+                purchase_order_id = self.request.POST[item]
+
+                # Ensure that a valid purchase order has been passed
+                try:
+                    purchase_order = PurchaseOrder.objects.get(pk=purchase_order_id)
+                except (PurchaseOrder.DoesNotExist, ValueError):
+                    purchase_order = None
+
+                supplier.selected_purchase_order = purchase_order.id if purchase_order else None
+
+                self.suppliers.append(supplier)
+
+                if supplier.selected_purchase_order is None:
+                    supplier_errors = True
+
+        form_step = request.POST.get('form_step')
+
+        # Map parts to suppliers
+        self.get_suppliers()
+
+        valid = False
+
+        if form_step == 'select_parts':
+            # No errors? Proceed to PO selection form
+            if part_errors is False:
+                self.ajax_template_name = 'order/order_wizard/select_pos.html'
+
+            else:
+                self.ajax_template_name = 'order/order_wizard/select_parts.html'
+
+        elif form_step == 'select_purchase_orders':
+
+            self.ajax_template_name = 'order/order_wizard/select_pos.html'
+
+            valid = part_errors is False and supplier_errors is False
+
+            # Form wizard is complete! Add items to purchase orders
+            if valid:
+                self.order_items()
+
+        data = {
+            'form_valid': valid,
+            'success': 'Ordered {n} parts'.format(n=len(self.parts))
+        }
+
+        return self.renderJsonResponse(self.request, data=data)
+
+    def order_items(self):
+        """ Add the selected items to the purchase orders. """
+
+        for supplier in self.suppliers:
+
+            # Check that the purchase order does actually exist
+            try:
+                order = PurchaseOrder.objects.get(pk=supplier.selected_purchase_order)
+            except PurchaseOrder.DoesNotExist:
+                logger.critical('Could not add items to purchase order {po} - Order does not exist'.format(po=supplier.selected_purchase_order))
+                continue
+
+            for item in supplier.order_items:
+
+                # Ensure that the quantity is valid
+                try:
+                    quantity = int(item.order_quantity)
+                    if quantity <= 0:
+                        continue
+                except ValueError:
+                    logger.warning("Did not add part to purchase order - incorrect quantity")
+                    continue
+
+                # Check that the supplier part does actually exist
+                try:
+                    supplier_part = SupplierPart.objects.get(pk=item.order_supplier)
+                except SupplierPart.DoesNotExist:
+                    logger.critical("Could not add part '{part}' to purchase order - selected supplier part '{sp}' does not exist.".format(
+                        part=item,
+                        sp=item.order_supplier))
+                    continue
+
+                order.add_line_item(supplier_part, quantity)
+
+
 class POLineItemCreate(AjaxCreateView):
     """ AJAX view for creating a new PurchaseOrderLineItem object
     """
@@ -229,8 +562,32 @@ class POLineItemCreate(AjaxCreateView):
 
 
 class POLineItemEdit(AjaxUpdateView):
+    """ View for editing a PurchaseOrderLineItem object in a modal form.
+    """
 
     model = PurchaseOrderLineItem
     form_class = order_forms.EditPurchaseOrderLineItemForm
     ajax_template_name = 'modal_form.html'
-    ajax_form_action = 'Edit Line Item'
+    ajax_form_title = 'Edit Line Item'
+
+    def get_form(self):
+        form = super().get_form()
+
+        # Prevent user from editing order once line item is assigned
+        form.fields.pop('order')
+
+        return form
+
+
+class POLineItemDelete(AjaxDeleteView):
+    """ View for deleting a PurchaseOrderLineItem object in a modal form
+    """
+
+    model = PurchaseOrderLineItem
+    ajax_form_title = 'Delete Line Item'
+    ajax_template_name = 'order/po_lineitem_delete.html'
+    
+    def get_data(self):
+        return {
+            'danger': 'Deleted line item',
+        }

InvenTree/part/models.py

@@ -339,7 +339,7 @@ class Part(models.Model):
         """
 
         if self.default_supplier:
-            return self.default_suppliers
+            return self.default_supplier
 
         if self.supplier_count == 1:
             return self.supplier_parts.first()
@@ -410,6 +410,26 @@ class Part(models.Model):
 
         return max(total, 0)
 
+    @property
+    def quantity_to_order(self):
+        """ Return the quantity needing to be ordered for this part. """
+
+        required = -1 * self.net_stock
+        return max(required, 0)
+
+    @property
+    def net_stock(self):
+        """ Return the 'net' stock. It takes into account:
+
+        - Stock on hand (total_stock)
+        - Stock on order (on_order)
+        - Stock allocated (allocation_count)
+
+        This number (unlike 'available_stock') can be negative.
+        """
+
+        return self.total_stock - self.allocation_count + self.on_order
+
     def isStarredBy(self, user):
         """ Return True if this part has been starred by a particular user """
 

InvenTree/part/serializers.py

@@ -65,6 +65,8 @@ class PartSerializer(serializers.ModelSerializer):
     image_url = serializers.CharField(source='get_image_url', read_only=True)
     category_name = serializers.CharField(source='category_path', read_only=True)
 
+    allocated_stock = serializers.IntegerField(source='allocation_count', read_only=True)
+
     @staticmethod
     def setup_eager_loading(queryset):
         queryset = queryset.prefetch_related('category')
@@ -91,7 +93,8 @@ class PartSerializer(serializers.ModelSerializer):
             'keywords',
             'URL',
             'total_stock',
-            # 'available_stock',
+            'allocated_stock',
+            'on_order',
             'units',
             'trackable',
             'assembly',

InvenTree/part/templates/part/category.html

@@ -49,6 +49,7 @@
         <div class='dropdown' style='float: right;'>
             <button id='part-options' class='btn btn-primary dropdown-toggle' type='button' data-toggle="dropdown">Options<span class='caret'></span></button>
             <ul class='dropdown-menu'>
+                <li><a href='#' id='multi-part-order' title='Order parts'>Order Parts</a></li>
                 <li><a href='#' id='multi-part-category' title='Set Part Category'>Set Category</a></li>
             </ul>
         </div>

InvenTree/part/templates/part/detail.html

@@ -15,6 +15,9 @@
             <ul class="dropdown-menu">
                 {% if part.active %}
                 <li><a href="#" id='edit-part' title='Edit part'>Edit</a></li>
+                {% if part.purchaseable %}
+                <li><a href='#' id='order-part' title='Order part'>Order</a></li>
+                {% endif %}
                 <li><a href='#' id='duplicate-part' title='Duplicate Part'>Duplicate</a></li>
                 <hr>
                 <li><a href="#" id='deactivate-part' title='Deactivate part'>Deactivate</a></li>
@@ -159,6 +162,14 @@
         );
     });
 
+    $("#order-part").click(function() {
+        launchModalForm("/order/purchase-order/order-parts/", {
+            data: {
+                part: {{ part.id }},
+            },
+        });
+    });
+    
     $("#edit-part").click(function() {
         launchModalForm(
                         "{% url 'part-edit' part.id %}",

InvenTree/part/templates/part/part_base.html

@@ -72,24 +72,16 @@
     </div>
 </div>
 <div class="col-sm-6">
-    <h4>Stock Status - {{ part.available_stock }}{% if part.units %} {{ part.units }} {% endif%} available</h4>
     <table class="table table-striped">
+        <tr>
+            <td colspan='2'>
+                <h4>Stock Status</h4>
+            </td>
+        </tr>
         <tr>
             <td>In Stock</td>
             <td>{{ part.total_stock }}</td>
         </tr>
-        {% if part.assembly %}
-        <tr>
-            <td>Can Build</td>
-            <td>{{ part.can_build }}</td>
-        </tr>
-        {% if part.quantity_being_built > 0 %}
-        <tr>
-            <td>Underway</td>
-            <td>{{ part.quantity_being_built }}</td>
-        </tr>
-        {% endif %}
-        {% endif %}
         {% if part.allocation_count > 0 %}
         <tr>
             <td>Allocated</td>
@@ -102,6 +94,27 @@
             <td>{{ part.on_order }}</td>
         </tr>
         {% endif %}
+        <tr>
+            <td><b>Total Available</b></td>
+            <td><b>{{ part.net_stock }}</b></td>
+        </tr>
+    {% if part.assembly %}
+        <tr>
+            <td colspan='2'>
+                <h4>Build Status</h4>
+            </td>
+        </tr>
+        <tr>
+            <td>Can Build</td>
+            <td>{{ part.can_build }}</td>
+        </tr>
+        {% if part.quantity_being_built > 0 %}
+        <tr>
+            <td>Underway</td>
+            <td>{{ part.quantity_being_built }}</td>
+        </tr>
+        {% endif %}
+    {% endif %}
     </table>
 </div>
 </div>

InvenTree/part/views.py

@@ -585,10 +585,6 @@ class BomDownload(AjaxView):
     # TODO - This should no longer extend an AjaxView!
 
     model = Part
-    # form_class = BomExportForm
-    # template_name = 'part/bom_export.html'
-    # ajax_form_title = 'Export Bill of Materials'
-    # context_object_name = 'part'
 
     def get(self, request, *args, **kwargs):
 

InvenTree/static/css/inventree.css

@@ -14,6 +14,10 @@
     color: #ffbb00;
 }
 
+.red-cell {
+    background-color: #ec7f7f;
+}
+
 .part-price {
     color: rgb(13, 245, 25);
 }
@@ -288,6 +292,21 @@
     color: #A11;
 }
 
+.btn-create {
+    padding: 3px;
+    padding-left: 5px;
+    padding-right: 5px;
+    color: #1A1;
+}
+
+.btn-edit {
+    padding: 3px;
+    padding: 3px;
+    padding-left: 5px;
+    padding-right: 5px;
+    color: #55E;
+}
+
 .button-toolbar {
     padding-left: 0px;
 }

InvenTree/static/script/inventree/order.js

@@ -0,0 +1,101 @@
+function removeOrderRowFromOrderWizard(e) {
+    /* Remove a part selection from an order form. */
+
+    e = e || window.event;
+
+    var src = e.target || e.srcElement;
+
+    var row = $(src).attr('row');
+
+    $('#' + row).remove();
+}
+
+function newSupplierPartFromOrderWizard(e) {
+    /* Create a new supplier part directly from an order form.
+     * Launches a secondary modal and (if successful),
+     * back-populates the selected row.
+     */
+
+    e = e || window.event;
+
+    var src = e.target || e.srcElement;
+
+    var part = $(src).attr('part-id');
+
+    launchModalForm("/supplier-part/new/", {
+        modal: '#modal-form-secondary',
+        data: {
+            part: part,
+        },
+        success: function(response) {
+            /* A new supplier part has been created! */
+
+            var dropdown = '#id_supplier_part_' + part;
+
+            var option = new Option(response.text, response.pk, true, true);
+
+            $('#modal-form').find(dropdown).append(option).trigger('change');
+        },
+    });
+}
+
+function newPurchaseOrderFromOrderWizard(e) {
+    /* Create a new purchase order directly from an order form.
+     * Launches a secondary modal and (if successful),
+     * back-fills the newly created purchase order.
+     */
+
+    e = e || window.event;
+
+    var src = e.target || e.srcElement;
+
+    var supplier = $(src).attr('supplier-id');
+
+    launchModalForm("/order/purchase-order/new/", {
+        modal: '#modal-form-secondary',
+        data: {
+            supplier: supplier,
+        },
+        success: function(response) {
+            /* A new purchase order has been created! */
+
+            var dropdown = '#id-purchase-order-' + supplier;
+
+            var option = new Option(response.text, response.pk, true, true);
+
+            $('#modal-form').find(dropdown).append(option).trigger('change');
+        },
+    });
+}
+
+function editPurchaseOrderLineItem(e) {
+
+    /* Edit a purchase order line item in a modal form.
+     */
+
+    e = e || window.event;
+
+    var src = e.target || e.srcElement;
+
+    var url = $(src).attr('url');
+
+    launchModalForm(url, {
+        reload: true,
+    });
+}
+
+function removePurchaseOrderLineItem(e) {
+
+    /* Delete a purchase order line item in a modal form 
+     */
+
+    e = e || window.event;
+
+    var src = e.target || e.srcElement;
+
+    var url = $(src).attr('url');
+
+    launchModalForm(url, {
+        reload: true,
+    });
+}

InvenTree/static/script/inventree/part.js

@@ -192,4 +192,22 @@ function loadPartTable(table, url, options={}) {
     if (options.buttons) {
         linkButtonsToSelection($(table), options.buttons);
     }
+
+    /* Button callbacks for part table buttons */
+
+    $("#multi-part-order").click(function() {
+        var selections = $(table).bootstrapTable("getSelections");
+
+        var parts = [];
+
+        selections.forEach(function(item) {
+            parts.push(item.pk);
+        });
+
+        launchModalForm("/order/purchase-order/order-parts/", {
+            data: {
+                parts: parts,
+            },
+        });
+    });
 }

InvenTree/static/script/inventree/stock.js

@@ -237,6 +237,22 @@ function loadStockTable(table, options) {
     $("#multi-item-move").click(function() {
         stockAdjustment('move');
     });
+
+    $("#multi-item-order").click(function() {
+        var selections = $("#stock-table").bootstrapTable("getSelections");
+
+        var stock = [];
+
+        selections.forEach(function(item) {
+            stock.push(item.pk);
+        });
+
+        launchModalForm("/order/purchase-order/order-parts/", {
+            data: {
+                stock: stock,
+            },
+        });
+    });
 }
 
 

InvenTree/templates/base.html

@@ -99,6 +99,7 @@ InvenTree
 <script type='text/javascript' src="{% static 'script/inventree/api.js' %}"></script>
 <script type='text/javascript' src="{% static 'script/inventree/tables.js' %}"></script>
 <script type='text/javascript' src="{% static 'script/inventree/modals.js' %}"></script>
+<script type='text/javascript' src="{% static 'script/inventree/order.js' %}"></script>
 <script type='text/javascript' src="{% static 'script/inventree/notification.js' %}"></script>
 <script type='text/javascript' src="{% static 'script/inventree/sidenav.js' %}"></script>
 {% block js_load %}

InvenTree/templates/hover_image.html

@@ -5,7 +5,7 @@
     <a class='hover-icon'>
     {% endif %}
         <img class='hover-img-thumb' {% if image %}src='{{ image.url }}'{% else %}src='{% static "img/blank_image.png" %}'{% endif %}>
-    {% if hover %}
+    {% if hover and image %}
         <img class='hover-img-large' {% if image %}src='{{ image.url }}'{% else %}src='{% static "img/blank_image.png" %}'{% endif %}>
     </a>
     {% endif %}

InvenTree/templates/modal_form.html

@@ -21,6 +21,8 @@
 
 {% block pre_form_content %}
 {% endblock %}
+
+{% block form %}
 <form method="post" action='' class='js-modal-form' enctype="multipart/form-data">
   {% csrf_token %}
   {% load crispy_forms_tags %}
@@ -32,5 +34,7 @@
   {% endblock %}
 </form>
 
+{% endblock %}
+
 {% block post_form_content %}
 {% endblock %}

InvenTree/templates/required_part_table.html

@@ -2,19 +2,22 @@
     <tr>
         <th>Part</th>
         <th>Description</th>
-        <th>Required</th>
         <th>In Stock</th>
         <th>On Order</th>
+        <th>Allocted</th>
         <th>Net Stock</th>
     </tr>
     {% for part in parts %}
     <tr>
-        <td><a href="{% url 'part-detail' part.id %}">{{ part.full_name }}</a></td>
+        <td>
+            {% include "hover_image.html" with image=part.image hover=True %}
+            <a href="{% url 'part-detail' part.id %}">{{ part.full_name }}</a>
+        </td>
         <td>{{ part.description }}</td>
-        <td>{{ part.allocation_count }}</td>
         <td>{{ part.total_stock }}</td>
         <td>{{ part.on_order }}</td>
-        <td>{{ part.available_stock }}</td>
+        <td>{{ part.allocation_count }}</td>
+        <td{% if part.net_stock < 0 %} class='red-cell'{% endif %}>{{ part.net_stock }}</td>
     </tr>
     {% endfor %}
 </table>

InvenTree/templates/stock_table.html

@@ -9,7 +9,8 @@
                 <li><a href="#" id='multi-item-add' title='Add to selected stock items'>Add stock</a></li>
                 <li><a href="#" id='multi-item-remove' title='Remove from selected stock items'>Remove stock</a></li>
                 <li><a href="#" id='multi-item-stocktake' title='Stocktake selected stock items'>Count stock</a></li>
-              <li><a href='#' id='multi-item-move' title='Move selected stock items'>Move stock</a></li>
+                <li><a href='#' id='multi-item-move' title='Move selected stock items'>Move stock</a></li>
+                <li><a href='#' id='multi-item-order' title='Order selected items'>Order stock</a></li>
             </ul>
         </div>
     </div>

setup.cfg

@@ -3,6 +3,8 @@ ignore =
 	# - W293 - blank lines contain whitespace
 	W293,
 	# - E501 - line too long (82 characters)
-	E501
+	E501,
+	# - C901 - function is too complex
+	C901,
 exclude = .git,__pycache__,*/migrations/*
 max-complexity = 20