Add 'to_order' and 'to_build' collapsible panels

InvenTree/InvenTree/views.py

@@ -15,6 +15,8 @@ from django.views import View
 from django.views.generic import UpdateView, CreateView, DeleteView
 from django.views.generic.base import TemplateView
 
+from part.models import Part
+
 from rest_framework import views
 
 
@@ -287,6 +289,21 @@ class IndexView(TemplateView):
 
     template_name = 'InvenTree/index.html'
 
+    def get_context_data(self, **kwargs):
+
+        context = super(TemplateView, self).get_context_data(**kwargs)
+        
+        # Generate a list of orderable parts which have stock below their minimum values
+        context['to_order'] = [part for part in Part.objects.filter(purchaseable=True) if part.need_to_restock()]
+    
+        # Generate a list of buildable parts which have stock below their minimum values
+        context['to_build'] = [part for part in Part.objects.filter(buildable=True) if part.need_to_restock()]
+
+        print("order:", len(context['to_order']))
+        print("build:", len(context['to_build']))
+
+        return context
+
 
 class SearchView(TemplateView):
     """ View for InvenTree search page.

InvenTree/build/templates/build/allocate.html

@@ -14,9 +14,6 @@
 {% include "build/allocation_item.html" with item=bom_item build=build collapse_id=bom_item.id %}
 {% endfor %}
 
-<table class='table table-striped' id='build-table'>
-</table>
-
 <div>
     <button class='btn btn-warning' type='button' id='complete-build'>Complete Build</button>
 </div>

InvenTree/part/models.py

@@ -193,14 +193,25 @@ class Part(models.Model):
     def available_stock(self):
         """
         Return the total available stock.
-        This subtracts stock which is already allocated
+
+        - This subtracts stock which is already allocated to builds
         """
 
         total = self.total_stock
 
         total -= self.allocation_count
 
-        return max(total, 0)
+        return total
+
+    def need_to_restock(self):
+        """ Return True if this part needs to be restocked
+        (either by purchasing or building).
+
+        If the allocated_stock exceeds the total_stock, 
+        then we need to restock.
+        """
+
+        return (self.total_stock - self.allocation_count) < self.minimum_stock
 
     @property
     def can_build(self):

InvenTree/templates/InvenTree/index.html

@@ -3,9 +3,20 @@
 {% block content %}
 <h3>InvenTree</h3>
 
-<p>Index!</p>
+{% if to_order %}
+{% include "InvenTree/parts_to_order.html" with collapse_id="order" %}
+{% endif %}
+
+{% if to_build %}
+{% include "InvenTree/parts_to_build.html" with collapse_id="build" %}
+{% endif %}
 
 {% endblock %}
 
 {% block js_load %}
+{{ block.super }}
+{% endblock %}
+
+{% block js_ready %}
+{{ block.super }}
 {% endblock %}

InvenTree/templates/InvenTree/parts_to_build.html

@@ -0,0 +1,14 @@
+{% extends "collapse.html" %}
+{% block collapse_title %}
+Parts to Build<span class='badge'>{{ to_build | length }}</span>
+{% endblock %}
+
+{% block collapse_heading %}
+There are {{ to_build | length }} parts which need building.
+{% endblock %}
+
+{% block collapse_content %}
+
+{% include "required_part_table.html" with parts=to_build table_id="to-build-table" %}
+
+{% endblock %}

InvenTree/templates/InvenTree/parts_to_order.html

@@ -0,0 +1,14 @@
+{% extends "collapse.html" %}
+{% block collapse_title %}
+Parts to Order<span class='badge'>{{ to_order | length }}</span>
+{% endblock %}
+
+{% block collapse_heading %}
+There are {{ to_order | length }} parts which need to be ordered.
+{% endblock %}
+
+{% block collapse_content %}
+
+{% include "required_part_table.html" with parts=to_order table_id="to-order-table" %}
+
+{% endblock %}

InvenTree/templates/collapse.html

@@ -1,3 +1,5 @@
+{% block collapse_preamble %}
+{% endblock %}
 <div class='panel-group'>
     <div class='panel panel-default'>
         <div class='panel panel-heading'>

InvenTree/templates/required_part_table.html

@@ -0,0 +1,18 @@
+<table class='table table-striped table-condensed' id='{{ table_id }}'>
+    <tr>
+        <th>Part</th>
+        <th>Description</th>
+        <th>In Stock</th>
+        <th>Allocated</th>
+        <th>Net Stock</th>
+    </tr>
+    {% for part in parts %}
+    <tr>
+        <td><a href="{% url 'part-detail' part.id %}">{{ part.name }}</a></td>
+        <td>{{ part.description }}</td>
+        <td>{{ part.total_stock }}</td>
+        <td>{{ part.allocation_count }}</td>
+        <td>{{ part.available_stock }}</td>
+    </tr>
+    {% endfor %}
+</table>